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As filed with the U.S. Securities and Exchange Commission on December 11, 2023

Registration No. 333-275241

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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

AMENDMENT NO. 2 TO

FORM S-1

REGISTRATION STATEMENT

UNDER THE SECURITIES ACT OF 1933

ProSomnus, Inc.

(Exact name of Registrant as specified in its charter)

5675 Gibraltar Drive
Pleasanton, California 94588
Tel: (844) 537-5337

(Address, Including Zip Code, and Telephone Number, Including Area Code, of Registrant’s Principal Executive Offices)

Len Liptak
Chief Executive Officer
5675 Gibraltar Drive
Pleasanton, California 94588
Tel: (844) 537-5337

(Name, Address, Including Zip Code, and Telephone Number, Including Area Code, of Agent for Service)

Copies to:

Andrew Hoffman
Austin D. March
Wilson Sonsini Goodrich & Rosati, P.C.
One Market Plaza, Spear Tower, Suite 3300
San Francisco, CA 94105
Telephone: (415) 947-2000

Approximate date of commencement of proposed sale to public: From time to time after the effective date hereof.

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933 check the following box. ☒

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

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If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

The registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective date until the registrant shall file a further amendment which specifically states that this registration statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act or until the registration statement shall become effective on such date as the SEC, acting pursuant to Section 8(a) of the Securities Act, may determine.

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PRELIMINARY PROSPECTUS SUBJECT TO COMPLETION DATED DECEMBER 11, 2023

ProSomnus, Inc.

Secondary Offering of Up to 45,272,288 Shares of Common Stock
Issuable Upon the Exercise of Warrants,
the Conversion of Series A Preferred Stock,
as Dividends on the Series A Preferred Stock and
Upon Conversion of Convertible Notes

This prospectus relates to the offer and resale from time to time, by the selling securityholders named in this prospectus (including their permitted transferees, donees, pledgees and other successors-in-interest) (collectively, the “Selling Securityholders”) of up to an aggregate of 45,272,288 shares of ProSomnus, Inc.’s (hereinafter “ProSomnus,” the “Company,” “we,” “our” or “us”) common stock, $0.0001 par value per share (“Common Stock”), consisting of up to (i) 5,454,524 shares of Common Stock issuable upon the exercise of certain warrants, each of which is exercisable at a price of $1.00 per share (the “Transaction Warrants”), issued pursuant to the Securities Purchase Agreement (the “Securities Purchase Agreement”), dated September 20, 2023, by and among us and the investors listed on the signature pages thereto, (ii) 10,426,000 shares of Common Stock issuable upon the conversion of our Series A Preferred Stock, $0.0001 par value per share (“Series A Preferred Stock” and, such shares, the “Preferred Conversion Shares”), (iii) 2,502,315 shares of Common Stock issuable as dividends to holders of our Series A Preferred Stock through September 30, 2026 (“Preferred PIK Shares”), (iv) 14,956,434 shares of Common Stock issuable upon the conversion of our Senior Secured Convertible Exchange Notes due December 6, 2025 (the “Senior Exchange Notes”) and Subordinated Secured Convertible Exchange Notes due 2026 (together with the Senior Exchange Notes, the “Exchange Notes”), in each case issued pursuant to each of the Exchange Agreements (the “Exchange Agreement” and, together, the “Exchange Agreements”), dated October 11, 2023, by and among the Company and the investors listed on the signature pages thereto in connection with the Securities Purchase Agreement (the “Exchange Notes,” and, such shares, the “Exchange Note Shares”), (v) 3,704,760 shares of Common Stock issuable upon the conversion of our Senior Secured Convertible Notes due December 6, 2025 (the “Existing Senior Notes”) and Subordinated Secured Convertible Notes due April 6, 2026 (the “Existing Subordinated Notes” and, together with the Existing Senior Notes, the “Existing Notes” and, together with the Exchange Notes, the “Convertible Notes” and, such shares, the “Existing Note Shares”) issued pursuant to the Senior Securities Purchase Agreement and Subordinated Securities Purchase Agreement, respectively, each dated August 26, 2022, by and among the Company and the investors listed on the signature pages thereto and (vi) 8,228,255 shares of Common Stock issuable as dividends to holders of our Subordinated Exchange Notes and Existing Subordinated Notes (the “PIK Note Shares”). We are registering the offer and sale of these securities to satisfy certain registration rights we have granted in connection with the Preferred Financing and in connection with the issuance of the Existing Notes, as applicable.

The offering of the Series A Preferred Stock, Transaction Warrants and Exchange Notes pursuant to the Securities Purchase Agreement and the Exchange Agreements was not registered under the Securities Act of 1933, as amended (the “Securities Act”). The offer and sale of such securities (including the Common Stock underlying such securities) was made in reliance on an exemption from registration under the Securities Act pursuant to Rule 506(b) promulgated thereunder.

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As described herein, the Selling Securityholders named in this prospectus or their permitted transferees, may resell from time to time up to an aggregate of 45,272,288 shares of Common Stock. The Selling Securityholders may offer, sell or distribute all or a portion of the securities hereby registered publicly or through private transactions at prevailing market prices or at negotiated prices. Our registration of these securities does not mean that the Selling Securityholders will offer or sell any of the securities offered hereby. We will not receive any of the proceeds from such sales of the shares of our Common Stock, except with respect to amounts received by us upon the exercise of the Transaction Warrants. We could receive up to an aggregate of approximately $5.45 million from the exercise of all Transaction Warrants, assuming the exercise in full of such warrants for cash at a price of $1.00 per share. The likelihood that the Selling Securityholders will exercise their Transaction Warrants, and therefore the amount of cash proceeds that we would receive, is dependent upon the market price of our Common Stock. On December 8, 2023, the closing price of our Common Stock was $0.55 per share. If the market price of our Common Stock continues to be less than the exercise price, it is unlikely that holders will exercise the Transaction Warrants, and therefore unlikely that we will receive any proceeds from the exercise of these warrants in the near future, or at all. See “Risk Factors—There is no guarantee that the Transaction Warrants will be in the money, and they may expire worthless” for more information.

The Selling Securityholders will determine the timing, pricing and rate at which they sell the shares of Common Stock offered hereby into the public market. Significant sales of shares of Common Stock pursuant to the registration statement of which this prospectus forms a part may have negative pressure on the public trading price of our Common Stock. The shares being registered for resale currently represent approximately 67.8% of the total number of shares of Common Stock outstanding, assuming the full conversion or exercise of the Transaction Warrants, the shares of Series A Preferred Stock, and the Exchange Notes for Common Stock, based on the number of shares of Common Stock outstanding as of December 6, 2023, after giving effect to the results from the Company’s special meeting of stockholders on December 6, 2023 to approve, among other things, the issuance of the such shares (the “Special Meeting”).

We will bear all costs, expenses and fees in connection with the registration of these securities, including with regard to compliance with state securities or “blue sky” laws. The Selling Securityholders will bear all commissions and discounts, if any, attributable to their sale of shares of our Common Stock. See section titled “Plan of Distribution” beginning on page 113 of this prospectus.

Our Common Stock and our warrants that are exercisable at a price of $11.50 per share (the “Public Warrants”) are listed on the Nasdaq Global Market and Nasdaq Capital Market, respectively, under the symbols “OSA” and “OSAAW,” respectively. On December 8, 2023, the closing price of our Common Stock was $0.55 and the closing price for our Public Warrants was $0.0499.

We are an “emerging growth company” as defined under the federal securities laws and, as such, have elected to comply with certain reduced public company reporting requirements.

Investing in our Common Stock is highly speculative and involves a high degree of risk. See “Risk Factors” beginning on page 11 of this prospectus.

Neither the Securities and Exchange Commission (the “SEC”) nor any state securities commission has approved or disapproved of Common Stock or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

The date of this prospectus is           , 2023

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ABOUT THIS PROSPECTUS

This prospectus is part of a registration statement that we filed with the SEC using a “shelf” registration process. By using a shelf registration statement, the Selling Securityholders may sell up to 45,272,288 shares of Common Stock from time to time in one or more offerings as described in this prospectus. We will not receive any of the proceeds from such sales of the shares of our Common Stock, except with respect to amounts received by us upon the exercise of the Transaction Warrants. We will receive the proceeds from any exercise of the Transaction Warrants for cash.

We may also file a prospectus supplement or post-effective amendment to the registration statement of which this prospectus forms a part that may contain material information relating to these offerings. The prospectus supplement or post-effective amendment, as the case may be, may add, update or change information contained in this prospectus with respect to such offering. If there is any inconsistency between the information in this prospectus and the applicable prospectus supplement or post-effective amendment, you should rely on the prospectus supplement or post-effective amendment, as applicable. Before purchasing any of our Common Stock, you should carefully read this prospectus and any prospectus supplement and/or post-effective amendment, as applicable, together with the additional information described under “Where You Can Find More Information.”

Neither we nor the Selling Securityholders have authorized anyone to provide you with any information or to make any representations other than those contained in this prospectus and any prospectus supplement and/or post-effective amendment, as applicable, prepared by or on behalf of us or to which we have referred you. We and the Selling Securityholders take no responsibility for, and can provide no assurance as to the reliability of, any other information that others may give you. We and the Selling Securityholders will not make an offer to sell the Common Stock in any jurisdiction where the offer or sale is not permitted. You should assume that the information appearing in this prospectus and any prospectus supplement and/or post-effective amendment, as applicable, is accurate only as of the date on the respective cover. Our business, prospects, financial condition or results of operations may have changed since those dates.

MARKET AND INDUSTRY DATA

We obtained the industry and market data used throughout this prospectus from our own internal estimates and research, as well as from independent market research, industry and general publications and surveys, governmental agencies, publicly available information and research, surveys and studies conducted by third parties. Internal estimates are derived from publicly available information released by industry analysts and third-party sources, our internal research and our industry experience, and are based on assumptions made by us based on such data and our knowledge of our industry and market, which we believe to be reasonable. In some cases, we do not expressly refer to the sources from which this data is derived. In addition, while we believe the industry and market data included in this prospectus is reliable and based on reasonable assumptions, such data involve material risks and other uncertainties and are subject to change based on various factors, including those discussed in the section titled “Risk Factors.” These and other factors could cause results to differ materially from those expressed in the estimates made by the independent parties or by us.

TRADEMARKS

Our logo and trademark appearing in this prospectus are our property. This document contains references to trademarks and service marks belonging to other entities. Solely for convenience, trademarks and trade names referred to in this prospectus may appear without the ® or TM symbols, but such references are not intended to indicate, in any way, that the applicable licensor will not assert, to the fullest extent under applicable law, its rights to these trademarks and trade names. We do not intend our use or display of other companies’ trade names, trademarks or service marks to imply a relationship with, or endorsement or sponsorship of it by, any other companies.

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FREQUENTLY USED TERMS

Unless otherwise stated in this prospectus, the terms “we,” “us,” “our” or “ProSomnus” refer to ProSomnus Holdings, Inc. and our subsidiary prior to the Business Combination and to ProSomnus, Inc. and our subsidiaries subsequent to the Business Combination. In addition, in this prospectus:

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CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This prospectus, including, without limitation, statements in the sections titled “ProSomnus’s Management’s Discussion and Analysis of Financial Condition and Results of Operations” and “Description of ProSomnus’s Business,” includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, or the Exchange Act. These forward-looking statements can be identified by the use of forward-looking terminology, including the words “believes,” “estimates,” “anticipates,” “expects,” “intends,” “plans,” “may,” “will,” “potential,” “projects,” “predicts,” “continue,” or “should,” or, in each case, their negative or other variations or comparable terminology. There can be no assurance that actual results will not materially differ from expectations. Such statements include, but are not limited to, our future financial performance, our growth plans and opportunities, our financial performance, our ability to raise additional funds, and any other statements that are not statements of current or historical facts.

The forward-looking statements contained in this prospectus are based on our current expectations and beliefs concerning future developments and their potential effects on us. Future developments affecting us may not be those that we have anticipated. These forward-looking statements involve a number of risks, uncertainties (some of which are beyond our control) and other assumptions that may cause actual results or performance to be materially different from those expressed or implied by these forward-looking statements including, but not limited to, those relating to:

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Should one or more of these risks or uncertainties materialize, or should any of our assumptions prove incorrect, actual results may vary in material respects from those projected in these forward-looking statements. We undertake no obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as may be required under applicable law. These risks and others described under “Risk Factors” may not be exhaustive.

By their nature, forward-looking statements involve risks and uncertainties because they relate to events and depend on circumstances that may or may not occur in the future. We caution you that forward-looking statements are not guarantees of future performance. All subsequent written and oral forward-looking statements concerning matters addressed in this prospectus and attributable to ProSomnus or any person acting on our behalf are expressly qualified in their entirety by the cautionary statements contained or referred to in this prospectus.

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PROSPECTUS SUMMARY

This summary highlights certain information appearing elsewhere in this prospectus. Because it is only a summary, it does not contain all of the information that you should consider before investing in shares of Common Stock and it is qualified in its entirety by, and should be read in conjunction with, the more detailed information appearing elsewhere in this prospectus. Before you decide to invest in our Common Stock, you should read the entire prospectus carefully, including our financial statements and the related notes and the sections titled “Risk Factors,” “Business,” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included elsewhere in this prospectus.

Overview

ProSomnus is the first manufacturer of precision, mass-customized oral appliance therapy devices to treat obstructive sleep apnea, which affects over 74 million Americans and is associated with serious comorbidities, including heart failure, stroke, hypertension, morbid obesity and type 2 diabetes. ProSomnus’s patented devices are a more comfortable and less invasive alternative to continuous positive airway pressure (“CPAP”) therapy, and lead to more effective and patient-preferred outcomes. With more than 200,000 patients treated, we believe that ProSomnus’s devices are the most prescribed oral appliance devices in the United States.

Corporate Information

Our principal executive office is 5675 Gibraltar Drive, Pleasanton, CA 94588, and our telephone number is (844) 537-5337. Our investor relations website is located at https://investors.prosomnus.com. We make available free of charge through our website our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q and Current Reports on Form 8-K, and amendments to these reports filed or furnished pursuant to Section 13(a) or 15(d) of the Exchange Act, as soon as reasonably practicable after we electronically file such material with, or furnish such material to, the SEC. These reports and other information are also available, free of charge, at www.sec.gov. Information contained on, or that can be accessed through, the websites referenced in this prospectus are not a part of, or incorporated by reference into, this prospectus.

Summary Risk Factors

You should consider all the information contained in this prospectus before investing in our Common Stock. In particular, you should consider the risk factors described under “Risk Factors” beginning on page 11. Such risks include, but are not limited to, the following risks subsequent to the Business Combination:

Risks Related to Our Business and Industry

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Risks Related to Intellectual Property

Risks Related to Government and Regulation

The Ownership of Our Securities

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Implications of Being an Emerging Growth Company and Smaller Reporting Company

We are an “emerging growth company” as defined in Section 2(a) of the Securities Act of 1933, as amended (the “Securities Act”), as modified by the Jumpstart Our Business Startups Act of 2012 (the “JOBS Act”). As an emerging growth company, we may benefit from specified reduced disclosure and other requirements that are otherwise applicable generally to public companies. These provisions include:

We may benefit from these exemptions until December 31, 2025 or such earlier time that we are no longer an emerging growth company. We will cease to be an emerging growth company upon the earliest of: (1) December 31, 2025; (2) the first fiscal year after our annual gross revenues are $1.235 billion or more; (3) the date on which we have, during the previous three-year period, issued more than $1.0 billion in non-convertible debt securities; or (4) the date on which we are deemed to be a “large accelerated filer” under the Securities Exchange Act of 1934, as amended (the “Exchange Act”). We may choose to benefit from some but not all of these reduced disclosure obligations in future filings. If we do, the information that we provide stockholders may be different than you might get from other public companies in which you hold stock.

Additionally, we are a “smaller reporting company” as defined in Item 10(f)(1) of Regulation S-K. Smaller reporting companies may take advantage of certain reduced disclosure obligations, including, among other things, providing only two years of audited financial statements. We will remain a smaller reporting company until the last day of the fiscal year in which (i) the market value of our ordinary shares held by non-affiliates exceeds $250 million as of the prior June 30 or (ii) our annual revenue exceeded $100 million during such completed fiscal year and the market value of our ordinary shares held by non-affiliates exceeds $700 million as of the prior June 30.

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THE OFFERING

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In this prospectus, unless otherwise indicated, the number of shares of Common Stock outstanding as of December 6, 2023 after giving effect to the results from the Special Meeting, and the other information based thereon:

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RISK FACTORS

You should carefully review and consider the following risk factors and the other information contained in this prospectus, including the financial statements and the accompanying notes and matters addressed in the section titled “Cautionary Note Regarding Forward-Looking Statements,” in evaluating an investment in the Common Stock. The following risk factors apply to our business and operations. The occurrence of one or more of the events or circumstances described in these risk factors, alone or in combination with other events or circumstances, may have an adverse effect on our business, cash flows, financial condition and results of operations. We may face additional risks and uncertainties that are not presently known to us or that we currently deem immaterial, which may also impair our business, cash flows, financial condition and results of operations.

Risks Related to Our Business and Industry

Our business has a limited operating history, which may make it difficult to evaluate the prospects for our future viability and predict our future performance. As such, you cannot rely upon our historical operating performance to make an investment or voting decision regarding ProSomnus.

We began conducting our current business in 2016 and, as such, have a limited operating history and must be evaluated in light of the uncertainties, risks, expenses, and difficulties frequently encountered by companies in their early stages of operations.

In addition, as a business with a limited operating history, we may encounter unforeseen expenses, difficulties, complications, delays, and other known and unknown obstacles. We have encountered in the past, and will encounter in the future, risks and uncertainties frequently experienced by growing companies with limited operating histories in emerging and rapidly changing industries. If our assumptions regarding these risks and uncertainties, which we use to plan and operate our business, are incorrect or change, or if we do not address these risks successfully, our results of operations could differ materially from our expectations, and our business, financial condition, and results of operations could be adversely affected.

We have a history of operating losses and may never achieve cash flow positive or profitable results of operations.

Since we began conducting our ProSomnus business in 2016, we have not been profitable and have incurred losses and cash flow deficits. For the fiscal years ended December 31, 2022 and 2021, we reported net losses of $7.1 million and $6.0 million, respectively, and negative cash flow from operating activities of $10.3 million and $4.6 million, respectively. Accumulated deficit as of December 31, 2022 was $210.8 million. As of September 30, 2023, we had cash and cash equivalents of $12.0 million and an accumulated deficit of $228.0 million.

Our ability to continue as a going concern depends on our ability to execute on our plans to achieve revenue growth forecast, control operating costs, and obtain additional financing. We have developed a cash flow breakeven plan pursuant to which we expect to maintain positive cash balances and compliance with debt covenants and commitments. We have commenced the implementation of our plan and believe the plan, when fully implemented as planned, will mitigate the liquidity risks identified. However, our operating plan may change as a result of many factors currently unknown and there can be no assurance that the current operating plan or cash flow break even plan will be achieved in the time frame anticipated by us. Furthermore, there can be no assurance that we will be able to obtain additional financing on terms acceptable to us, on a timely basis or at all.

Based on our current level of expenditures and management’s future cash flow projections, we believe our cash and cash equivalents of $12.0 million and working capital of $6.1 million at September 30, 2023, may not be sufficient to fund our operations for the next twelve months. While the increase in working capital secured through the Series A Convertible Preferred Stock financing increased our cash balance, we anticipate that we will continue to report losses and negative cash flow and, therefore, may still need or elect to raise additional capital. There is therefore a risk that we will be unable to operate our business in a manner that generates positive cash flow or profit, and our failure to operate our business profitably could damage our reputation and stock price.

We have identified a historical material weakness in our internal control over financial reporting.

In connection with the audit of our consolidated financial statements for the years ended December 31, 2022 and 2021, we and our independent registered public accounting firms identified a material weakness in our internal control over financial reporting. A material weakness is a deficiency, or a combination of deficiencies, in internal control over financial reporting, such that there is a reasonable possibility that a material misstatement of our annual or interim financial statements will not be prevented or detected on a timely basis. The material weakness in our case arose from the accounting for certain complex transactions and a lack of expertise for

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such accounting issues. While remediation efforts have been made, if we are unable to remedy our material weakness, or if we generally fail to establish and maintain effective internal controls appropriate for a public company, we may be unable to produce timely and accurate financial statements, and we may conclude that our internal control over financial reporting is not effective, which could adversely impact our investors’ confidence and our stock price.

We will not be successful if our ProSomnus precision intraoral medical devices are not sufficiently adopted by the medical and dental communities for the treatment of Obstructive Sleep Apnea (OSA).

Our success depends both on the sufficient acceptance and adoption by the medical and dental communities of our ProSomnus precision intraoral medical devices as a non-invasive treatment for the treatment of mild to moderate OSA and potentially severe OSA in the future and on heightening public awareness of the prevalence of OSA to increase the number of undiagnosed patients who seek treatment. Currently, a relatively limited number of dentists and other medical professionals provide ProSomnus precision intraoral medical devices for the treatment of OSA. We cannot predict how quickly, if at all, the medical and dental communities will accept our precision intraoral medical devices, or, if accepted, the extent of their use.

For us to be successful:

Studies have shown that a significant percentage of people who have OSA remain undiagnosed and therefore do not seek treatment, or those who are diagnosed with OSA may be reluctant to seek treatment or incur costs of treatment, the potentially negative lifestyle effects of Continuous Positive Airway Pressure (CPAP) and other traditional treatments, and the lack of awareness of new treatment options. If the medical and dental communities are slow to adopt, or fail to adopt, ProSomnus precision intraoral medical devices as a treatment for individuals with OSA, we would suffer a material adverse effect on our business, financial condition, and results of operations.

We derive a substantial portion of our revenue from sales of a single type of product (ProSomnus precision intraoral medical devices) and expect to continue to do so, which leaves us reliant on the commercial viability of the ProSomnus precision intraoral medical devices.

Currently, our only products are ProSomnus precision intraoral medical devices. We expect a secondary source of revenue to be remote monitoring services, which we expect to introduce soon. We expect that sales of our ProSomnus precision intraoral medical devices will account for a significant amount of our revenue for the foreseeable future. We currently market and sell our ProSomnus precision intraoral medical devices primarily in the United States, Europe and Canada, with a very limited presence in Australia. Because the ProSomnus precision intraoral medical devices are different from current surgical and non-surgical treatments for OSA, we cannot assure you that dentists in corroboration with physicians will use our products, and demand for our products may decline or may not increase as quickly as we expect. Also, we cannot assure you that the ProSomnus precision intraoral medical devices will compete effectively as a treatment alternative to other more well-known and well- established therapies, such as CPAP, palatal surgical procedures, or other oral appliance therapy devices.

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Since our ProSomnus precision intraoral medical devices currently represent our only products, we are significantly reliant on the level of recurring sales of the ProSomnus precision intraoral medical devices and decreased or lower than expected sales or recruitment of physicians and sleep dentists to recommend our products would have a material adverse effect on our business, financial condition, and results of operations.

We expect to introduce remote monitoring services soon. We may be unable to launch these new services on time, at all, or without significant additional expense, and such services may not be as popular as we anticipated, which would have a material adverse effect on our business, financial condition, and results of operations.

We face risks relating to public health conditions such as the COVID-19 pandemic, which could adversely affect our customers, sleep physicians, our business, and our results of operations.

Our business and prospects have been and could be materially adversely affected by the COVID-19 pandemic or recurrences of COVID-19, including new variants, or any other similar diseases in the future. Material adverse effects from COVID-19 and similar diseases could result in numerous known and currently unknown ways including from quarantines and lockdowns which impair our marketing and sales efforts to dentists or other medical professionals and limit patient visits to sleep dentists and physicians. During the COVID-19 pandemic, dental offices throughout the U.S. and Canada shut down for extended periods of time (and may be shut down again due to recurrences of COVID-19), thus negatively impacting our product revenues. The pandemic and reactions to the pandemic or future outbreaks of COVID-19 could also impair the timing of obtaining necessary consents and approvals from the FDA, as its employees could also be under such quarantines and lockdowns and their time could be mandatorily required to be allocated to more immediate global and domestic concerns relating to COVID-19. In addition, we purchase materials for our products from suppliers located in affected areas, and we may not be able to timely procure required materials. The effects of the COVID-19 pandemic have also placed travel restrictions on us, as well as temporary closures of the facilities of our suppliers as non-essential medical and dental procedures have been limited, which could also adversely impact our business. In addition, a significant outbreak of contagious diseases in the human population could result in a widespread health crisis that could adversely affect the economies and financial markets of many countries, resulting in an economic downturn that could reduce the demand for our products and impair our business prospects including being unable to raise additional capital on acceptable terms to us, if at all.

We may not be able to successfully implement our growth strategy by successfully attracting sleep dentists and sleep physicians on a timely basis or at all, which could harm our business, financial condition, and results of operations.

The growth of our business depends on our ability to execute our plan to attract new sleep dentists and sleep physicians. Our ability to recruit sleep dentists and sleep physicians depends on many factors, including our ability to:

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Further, applicable laws, rules, and regulations (including licensure requirements) could negatively impact our ability to recruit sleep dentists that provide our devices to their patients.

Accordingly, we may not be able to achieve our planned growth or, even if we are able to grow our base of sleep dentists as planned, we may not be profitable or otherwise perform as planned. We may also struggle to recruit and train ProSomnus employees which could limit our ability to deliver product in a timely manner. Failure to successfully implement our growth strategy would likely have an adverse impact on our business, financial condition, and results of operations.

Our sales and marketing efforts may not be successful.

We currently market and sell our ProSomnus precision intraoral medical devices to a limited number of licensed professionals, primarily sleep dentists. Approximately 2.4% of dentists in the United States have been trained in providing our ProSomnus precision intraoral medical devices. The commercial success of our ProSomnus precision intraoral medical devices ultimately depends upon a number of factors, including the number of sleep dentists who provide our ProSomnus precision intraoral medical devices to their patients, the number of devices provided by these dentists, the number of patients who become aware of our ProSomnus precision intraoral medical devices by self-referral or referrals by their primary care or sleep physicians, the number of patients who elect to use our ProSomnus precision intraoral medical devices, and the number of patients who, having successfully used our ProSomnus precision intraoral medical devices, endorse and refer our ProSomnus precision intraoral medical devices to other potential patients.

Although we sell our products directly to sleep dentists, our experience in marketing and selling our ProSomnus precision intraoral medical devices through a direct sales organization in the United States is limited. We may not be able to maintain a suitable sales force in the United States or internationally or train a suitable number of sleep dentists and physicians. Our marketing and sales efforts may not be successful in increasing awareness and sales of our ProSomnus precision intraoral medical devices.

The failure to educate a sufficient number of physicians and dentists in the benefits and use of our ProSomnus precision intraoral medical devices could reduce the market acceptance of our ProSomnus precision intraoral medical devices and reduce our revenue.

It is critical to the success of our sales efforts that there is an increasing number of sleep dentists and sleep physicians familiar with and proficient in the use of our ProSomnus precision intraoral medical devices. Currently, sleep dentists learn to use our ProSomnus precision intraoral medical devices through hands-on, on-site training or virtual training by our representatives. However, to receive this training, dentists must be aware of our ProSomnus precision intraoral medical devices as a treatment option for OSA and be interested in using our ProSomnus precision intraoral medical devices in their practice. We cannot predict the extent to which dentists will dedicate the time and energy necessary for adequate training in the use of our ProSomnus precision intraoral medical devices, have the knowledge of or experience in the clinical outcomes of our ProSomnus precision intraoral medical devices, or feel comfortable enough using our ProSomnus precision intraoral medical devices to recommend it to their patients. Even if a dentist is well versed in our ProSomnus precision intraoral medical devices, he or she may be unwilling to require patients to pay for the oral device out-of-pocket if not covered by medical insurance. If dentists do not continue to accept and recommend our ProSomnus precision intraoral medical devices, our revenue could be materially and adversely affected.

Our marketing activities may not be successful.

We incur costs and expend other resources in our marketing efforts to attract and retain sleep dentists, referring physicians and patients. Our marketing activities are principally focused on increasing brand awareness in the communities in which we provide services. We expect to undertake marketing campaigns to increase awareness about our presence and our service capabilities. If we are not successful in these efforts, we will have incurred expenses without materially increasing revenue.

Our future operating results are difficult to predict and may vary significantly from quarter to quarter, which may adversely affect the price of our Common Stock.

Our limited history of sales of our ProSomnus precision intraoral medical devices, together with our history of losses, make prediction of future operating results difficult. You should not rely on our past revenue growth as any indication of future growth rates or operating results. Our valuation and the price of our securities likely will fall in the event our operating results do not meet the

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expectations of analysts and investors. Comparisons of our quarterly operating results are an unreliable indication of our future performance because they are likely to vary significantly based on many factors, including:

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We may not be able to respond in a timely and cost-effective manner to changes in the preferences of physicians, dental sleep medicine providers or patients.

Our ProSomnus precision intraoral medical devices are subject to changing preferences of both physicians and dental sleep medicine providers that provide our precisions intraoral medical devices to patients and the patients themselves. A shift in preferences away from the precision intraoral medical devices we offer would result in our results of operations in future periods to be materially adversely impacted.

Further clinical studies of our ProSomnus precision intraoral medical devices may adversely impact our ability to generate revenue if they do not demonstrate that our devices are clinically effective for currently specified or expanded indications or if they are not completed in a timely manner.

We have conducted a number of clinical studies of the use of our ProSomnus precision intraoral medical devices to treat patients with mild to moderate OSA in the United States, Europe and Canada. We are also involved in a number of ongoing clinical studies evaluating clinical outcomes from the use of our ProSomnus precision intraoral medical devices, including prospective, randomized, placebo-controlled studies, as well as clinical studies that are structured to obtain additional clearances from the FDA for expanded clinical indications for use of our ProSomnus precision intraoral medical devices, including for the treatment of severe OSA.

We cannot assure you that these clinical studies will continue to demonstrate that our ProSomnus precision intraoral medical devices provide clinical effectiveness for individuals diagnosed with mild to moderate OSA or will demonstrate that such devices also provide clinical effectiveness for individuals diagnosed with severe OSA, nor can we assure you that the use of our ProSomnus precision intraoral medical devices will prove to be safe and effective in clinical studies under United States or international regulatory guidelines for any expanded indications. Additional clinical studies of our ProSomnus precision intraoral medical devices may identify significant clinical, technical, or other obstacles that will have to be overcome prior to obtaining clearance from the applicable regulatory bodies to market our ProSomnus precision intraoral medical devices for such expanded indications.

Individuals selected to participate in these further clinical studies must meet certain anatomical and other criteria to participate. We cannot assure you that an adequate number of individuals can be enrolled in clinical studies on a timely basis. Further, we cannot assure you that the clinical studies will be completed as planned. A delay in the analysis and publication of the positive outcomes data from these clinical studies, or the presentation or publication of negative outcomes data from these clinical studies, including data related to approval of our ProSomnus precision intraoral medical devices for expanded indications, may materially impact our ability to increase revenue through sales and negatively impact our stock price.

Our business and results of operations may be impacted by the extent to which patients using our ProSomnus precision intraoral medical devices achieve and maintain adequate levels of government and third-party insurance reimbursement.

The cost of treatments for OSA, such as CPAP, and most surgical procedures generally are covered and reimbursed in whole or part by government and third-party healthcare insurers. Our ProSomnus precision intraoral medical devices are customized oral appliances, most of which currently qualify for reimbursement for the treatment of mild to moderate OSA. Our ability to generate future revenue from additional sales of our ProSomnus precision intraoral medical devices and remote monitoring services for the treatment of OSA may be materially limited by the extent to which reimbursement of our ProSomnus precision intraoral medical devices and remote monitoring services for the treatment of OSA is available in the future. In addition, government and third-party healthcare insurers are increasingly challenging the prices charged for medical products and procedures. Any changes in this reimbursement system or reimbursement levels could materially affect our ability to continue to grow our business.

Reimbursement and healthcare payment systems in international markets vary significantly by country and reimbursement for our ProSomnus precision intraoral medical devices may not be available at all under either government or private reimbursement systems. If we are unable to achieve reimbursement approvals in international markets, it could have a negative impact on market acceptance of our ProSomnus precision intraoral medical devices and potential revenue growth in the markets in which these approvals are sought.

We face significant competition in the rapidly changing market for treating OSA, and we may be unable to manage competitive pressures.

The market for treating OSA, including sleep apnea in people of all ages, is highly competitive and evolving rapidly. We compete as a front-line therapy in the OSA treatment market for patients with mild to moderate OSA. According to the American

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Sleep Apnea Association, over 100 different oral appliances are FDA cleared for the treatment of snoring and obstructive sleep apnea. Our ProSomnus precision intraoral medical devices must compete with more established products, treatments, and surgical procedures, which may limit our growth and negatively affect our business. Many of our competitors have an established presence in the field of treating OSA and have established relationships with pulmonologists, sleep clinics, and ear, nose and throat specialists (“ENTs”), which play a significant role in determining which product, treatment, or procedure is recommended to the patient. We believe certain of our competitors are attempting to develop innovative approaches and new products for diagnosing and treating. We cannot predict the extent to which ENTs, oral maxillofacial surgeons, primary care physicians, or pulmonologists would or will recommend our ProSomnus precision intraoral medical devices over new or other established devices, treatments, or procedures.

Moreover, we are in the early stages of implementing our business plan and have historically had limited resources with which to market, develop and sell our ProSomnus precision intraoral medical devices. Many of our competitors have substantially greater financial and other resources than we do, including larger research and development staffs who have more experience and capability in conducting research and development activities, testing products in clinical trials, obtaining regulatory approvals, and manufacturing, marketing, selling, and distributing products. Some of our competitors may achieve patent protection, regulatory approval, or product commercialization more quickly than we do, which may decrease our ability to compete. If we are unable to be competitive in the market for OSA, our revenue will decline, which would negatively affect our results of operations.

Our ProSomnus precision intraoral medical devices may become obsolete if we are unable to anticipate and adapt to rapidly changing technology.

The medical device industry is subject to rapid technological innovation and, consequently, the life cycle of any particular product can be short. Alternative products, procedures, or other discoveries and developments to treat OSA may render our ProSomnus precision intraoral medical devices obsolete.

Furthermore, the greater financial and other resources of many of our competitors may permit them to respond more rapidly than we can to technological advances. If we fail to develop new technologies, products, or services to upgrade or improve our existing ProSomnus precisions intraoral medical devices to respond to a changing market before our competitors are able to do so, our ability to market our products and generate substantial revenue may be limited.

Our potential international sales are subject to a number of risks that could seriously harm our ability to successfully commercialize our ProSomnus precision intraoral medical devices in international markets.

We do not have any significant international sales outside of Europe and Canada, although we hope to more broadly introduce our ProSomnus precision intraoral medical devices into international markets in the future. Our ability to generate international sales is subject to several risks, including:

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The occurrence of any of these events could seriously harm our future international sales and our ability to successfully commercialize our products in international markets, thereby limiting our growth and revenue.

We maintain supply relationships for certain of our key manufacturing systems and raw materials, and our business and operating results could be harmed if supply is restricted or ends, or the price of raw materials used in our manufacturing process increases.

We are highly dependent on manufacturers of specialized oral scanning equipment, milling machines, and advanced medical grade raw materials for the fabrication of our precision intraoral medical devices. We maintain supply relationships for many of these systems and materials. We are also committed to purchasing the vast majority of our advanced medical grade Class VI polymer, the primary raw material used in our manufacturing of our precision intraoral medical devices, from a certain source. While it is our goal to have multiple sources to procure certain key components, in some cases it may not be economically practical or feasible to do so. To mitigate this risk, we maintain an awareness of alternate supply sources that could provide our components with minimal or no modification to the current version of our precision intraoral medical devices, practice supply chain management, maintain safety stocks of critical components and have arrangements with our key vendors to manage the availability of critical components. If these or other suppliers encounter financial, operating, or other difficulties or if our relationship with them changes, we might not be able to quickly establish or qualify replacement sources of supply and could face production interruptions, delays, and inefficiencies. In addition, technological changes by our vendors could disrupt our manufacturing process or require expensive, time-consuming development efforts to adapt and integrate new equipment or processes. Our growth may exceed the capacity of one or more of these manufacturers to produce the needed equipment and materials in sufficient quantities to support our growth. Conversely, in order to secure supplies for production of our precision intraoral medical devices, we sometimes enter into non-cancelable purchase commitments with vendors, which could impact our ability to adjust our inventory to reflect declining market demands. If demand for our products is less than we expect, we may experience additional excess and obsolete inventories and be forced to incur additional charges and our profitability may suffer. In the event of technology changes, delivery delays, or shortages of or increases in price for these items, our business and growth prospects may be harmed.

The failure of dentists to pay for their purchases of our ProSomnus precision intraoral medical devices on a timely basis could reduce our future revenue and negatively impact our liquidity.

The timing and extent of our future growth in revenue depends, in part, on our ability to continue to increase the number of sleep dentists using our ProSomnus precision intraoral medical devices, as well as expanding the number of our ProSomnus precision intraoral medical devices used by these dentists. To the extent one or more of our large providers fails to pay us for our ProSomnus precision intraoral medical devices on a timely basis, we may be required to discontinue selling to these dentists and find new customers, which could reduce our future revenue and negatively impact our liquidity.

Our revenues may depend on our patients’ and providers’ receipt of adequate reimbursement from private insurers and government sponsored healthcare programs.

Political, economic, and regulatory influences continue to change the medical device industry in the United States. The ability of patients to pay fees for our devices will partially depend on the extent to which reimbursement for the costs of such materials and related treatments will continue to be available from private health coverage insurers and other similar organizations. We may have difficulty gaining market acceptance for the products we sell if third-party payors do not provide adequate coverage and reimbursement to physicians and care providers. Major third-party payors, such as private healthcare insurers, periodically revise their payment methodologies based, in part, upon changes in government sponsored healthcare programs. We cannot predict these periodic revisions with certainty, and such revisions may result in adverse changes to reimbursement for certain specified devices, potentially adversely impacting our business, results of operations, and financial conditions.

The sales of our devices will depend in part on the availability of reimbursement by third-party payors, such as government health administration authorities, private health insurers and other organizations. Third-party payors often challenge the price and cost-effectiveness of medical devices and services. Governmental approval of medical products does not guarantee that these third-party payors will pay for the products. Even if third-party payors do accept our medical devices, the amounts they pay may not be adequate to enable us to realize a profit. Legislation and regulations affecting the pricing of devices may change before our products and services are approved for marketing, and any such changes could further limit reimbursement, if any.

Third-party payors often require billing clinicians to participate in the third-party payors network (“in-network”) to receive the maximum benefit from the third-party payor. If our customer dentists and clinicians do not participate in third-party payor

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networks, costs to patients may increase materially and adversely and negatively impact our business by reducing patient willingness to pay out of pocket for our products resulting in reduced revenue.

We face the risk of product liability claims that could be expensive, divert management’s attention, and harm our reputation and business.

Our business exposes us to the risk of product liability claims that are inherent in the testing, manufacturing, and marketing of medical devices. This risk exists even if a device is cleared or approved for commercial sale by the FDA and manufactured in facilities licensed and regulated by the FDA or an applicable foreign regulatory authority. Our ProSomnus precision intraoral medical devices are designed to affect, and any future products will be designed to affect, important bodily functions and processes. Any side effects, manufacturing defects, misuse, or abuse associated with our ProSomnus precision intraoral medical devices could potentially result in patient injury or death. The medical device industry has historically been subject to extensive litigation over product liability claims, and we cannot offer any assurance that we will not face product liability suits. We may be subject to product liability claims if our ProSomnus precision intraoral medical devices cause, or merely appear to have caused, patient injury or death. In addition, an injury that is caused by the activities of our suppliers, such as those who provide us with components and raw materials, may be the basis for a claim against us. Product liability claims may be brought against us by patients, healthcare providers, or others selling or otherwise coming into contact with our ProSomnus precision intraoral medical devices, among others. If we cannot successfully defend ourselves against product liability claims, we will incur substantial liabilities and reputational harm. In addition, regardless of merit or eventual outcome, product liability claims may result in:

Any recall or market withdrawal of our products may delay the supply of those products to our customers and may impact our reputation. We can provide no assurance that we will be successful in initiating appropriate market recall or market withdrawal efforts that may be required in the future or that these efforts will have the intended effect of preventing product malfunctions and the accompanying product liability that may result. Such recalls and withdrawals may also be used by our competitors to harm our reputation for safety or be perceived by patients as a safety risk when considering the use of our products, either of which could have a material adverse effect on our business, financial condition, and results of operations.

We may not be able to maintain adequate product liability insurance.

Our product liability and clinical study liability insurance is subject to deductibles and coverage limitations. Our product liability insurance may not continue to be available to us on acceptable terms, if at all, and, if available, coverage may not be adequate to protect us against any future product liability claims. If we are unable to obtain insurance at an acceptable cost or on acceptable terms or otherwise protect against potential product liability claims, we could be exposed to significant liabilities.

We bear the risk of warranty claims on our ProSomnus precision intraoral medical devices.

We bear the risk of warranty claims on our ProSomnus precision intraoral medical devices. We may not be successful in claiming recovery under any warranty or indemnity provided to us by our suppliers or vendors in the event of a successful warranty claim against us by a customer or that any recovery from such vendor or supplier would be adequate. In addition, warranty claims

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brought by our customers or patients related to third-party components may arise after our ability to bring corresponding warranty claims against such suppliers expires, which could result in costs to us.

Risks Related to Intellectual Property

We depend on our patents and proprietary technology, which we may not be able to protect.

Our success depends, in part, on our ability to obtain and maintain patent protection for our ProSomnus precision intraoral medical devices and our manufacturing process and the confidentiality of proprietary technology. Our success further depends on our ability to obtain and maintain trademark protection for our name and mark, to preserve our trade secrets and know-how, and to operate without infringing the intellectual property rights of others.

We cannot assure investors that we will continue to innovate and file new patent applications, or that if any filed future patent applications will result in granted patents. We cannot assure you that any of our patents pending will result in issued patents, that any current or future patents will not be challenged, invalidated, or circumvented, that the scope of any of our patents will exclude competitors or that the patent rights granted to us will provide us any competitive advantage or protect our products. The patent position of device companies, including ours, is generally uncertain and involves complex legal and factual considerations and, therefore, validity and enforceability cannot be predicted with certainty. Patents may be challenged, deemed unenforceable, invalidated, or circumvented. We will be able to protect our proprietary rights from unauthorized use by third parties only to the extent that our proprietary technologies, protocols and any future products are covered by valid and enforceable patents or are effectively maintained as trade secrets.

Any patents we have obtained or obtain in the future may be challenged by re-examination or otherwise invalidated or found unenforceable. Both the patent application process and the process of managing patent disputes can be time consuming and expensive. If we were to initiate legal proceedings against a third party to enforce a patent related to one of our products, the defendant in such litigation could counterclaim that our patent is invalid and/or unenforceable. In patent litigation in the United States, defendant counterclaims alleging invalidity and/or unenforceability are commonplace, as are validity challenges by the defendant against the subject patent or other patents before the United States Patent and Trademark Office (“USPTO”). Grounds for a validity challenge could be an alleged failure to meet any of several statutory requirements, including lack of novelty, obviousness, or non-enablement, failure to meet the written description requirement, indefiniteness, and/or failure to claim patent eligible subject matter. Grounds for an unenforceability assertion could be an allegation that someone connected with prosecution of the patent intentionally withheld material information from the USPTO, or made a misleading statement, during prosecution. Additional grounds for an unenforceability assertion include an allegation of misuse or anticompetitive use of patent rights, and an allegation of incorrect inventorship with deceptive intent. Third parties may also raise similar claims before the USPTO even outside the context of litigation. The outcome is unpredictable following legal assertions of invalidity and unenforceability. With respect to the validity question, for example, we cannot be certain that no invalidating prior art existed of which we and the patent examiner were unaware during prosecution. These assertions may also be based on information known to us or the USPTO. If a defendant or third party were to prevail on a legal assertion of invalidity and/or unenforceability, we would lose at least part, and perhaps all, of the claims of the challenged patent. Such a loss of patent protection would or could have a material adverse impact on our business.

The standards that the USPTO (and foreign equivalents) use to grant patents are not always applied predictably or uniformly and can change. There is also no uniform, worldwide policy regarding the subject matter and scope of claims granted or allowable in device patents. Accordingly, we do not know the degree of future protection for our proprietary rights or the breadth of claims that will be allowed in any patents issued to us or to others.

However, there can be no assurance that our technology will not be found in the future to infringe upon the rights of others or be infringed upon by others. Moreover, patent applications are in some cases maintained in secrecy until patents are issued. The publication of discoveries in the scientific or patent literature frequently occurs substantially later than the date on which the underlying discoveries were made and patent applications were filed. Because patents can take many years to issue, there may be currently pending applications of which we are unaware that may later result in issued patents that our products or product candidates infringe. For example, pending applications may exist that provide support or can be amended to provide support for a claim that results in an issued patent that our product infringes. In such a case, others may assert infringement claims against us, and should we be found to infringe upon their patents, or otherwise impermissibly utilize their intellectual property, we might be forced to pay damages, potentially including treble damages, if we are found to have willfully infringed on such parties’ patent rights.

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In addition to any damages we might have to pay, we may be required to obtain licenses from the holders of this intellectual property. We may fail to obtain any of these licenses or intellectual property rights on commercially reasonable terms. Even if we are able to obtain a license, it may be non-exclusive, thereby giving our competitors access to the same technologies licensed to us. In that event, we may be required to expend significant time and resources to develop or license replacement technology. If we are unable to do so, we may be unable to develop or commercialize the affected products, which could materially harm our business and the third parties owning such intellectual property rights could seek either an injunction prohibiting our sales, or, with respect to our sales, an obligation on our part to pay royalties and/or other forms of compensation. Conversely, we may not always be able to successfully pursue our claims against others that infringe upon our technology. Thus, the proprietary nature of our technology or technology licensed by us may not provide adequate protection against competitors.

In addition to patents, we rely on trademarks to protect the recognition of our company and products in the marketplace. We also rely on trade secrets, know-how, and proprietary knowledge that we seek to protect, in part, through confidentiality agreements with employees, consultants and others. We cannot assure you that our proprietary information will not be shared, our confidentiality agreements will not be breached, that we will have adequate remedies for any breach, or that our trade secrets will not otherwise become known to or independently developed by competitors.

Confidentiality agreements with employees and others may not adequately prevent disclosure of trade secrets and other proprietary information and disclosure of our trade secrets or proprietary information could compromise any competitive advantage that we have, which could have a materially adverse effect on our business.

Our success depends, in part, on our ability to protect our proprietary rights to the technologies used in our products and our proprietary technology. We depend heavily upon confidentiality agreements with our officers, employees, consultants, and subcontractors to maintain the proprietary nature of our technology. These measures may not afford us complete or even sufficient protection and may not afford an adequate remedy in the event of an unauthorized disclosure of confidential information. If we fail to protect and/or maintain our intellectual property, third parties may be able to compete more effectively against us, we may lose our technological or competitive advantage, and/or we may incur substantial litigation costs in our attempts to recover or restrict use of our intellectual property. In addition, others may independently develop technology similar to ours, otherwise avoiding the confidentiality agreements, or produce patents that would materially and adversely affect our business.

We may face intellectual property infringement claims that would be costly to resolve.

There has been substantial litigation regarding patent and other intellectual property rights in the medical device industry, and our competitors and others may initiate intellectual property litigation, including as a means of competition. Intellectual property litigation is complex and expensive, and outcomes are difficult to predict. We cannot assure you that we will not become subject to patent infringement claims, litigation, or interference proceedings to determine the priority of inventions. Litigation or regulatory proceedings also may be necessary to enforce our patent or other intellectual property rights. We may not always have the financial resources to assert patent infringement suits or to defend ourselves from claims. An adverse result in any litigation could subject us to liabilities or require us to seek licenses from or pay royalties to others that may be substantial. Furthermore, we cannot predict the extent to which the necessary licenses would be available to us on satisfactory terms, if at all.

Our failure to secure trademark registrations could adversely affect our ability to market our products and operate our business.

Our trademark applications in the United States and any other jurisdictions where we may file may not be allowed registration, and we may not be able to maintain or enforce our registered trademarks. During trademark registration proceedings, we may receive rejections. Although we are given an opportunity to respond to those rejections, we may be unable to overcome such rejections. In addition, in the USPTO and in corresponding foreign agencies, third parties are given an opportunity to oppose pending trademark applications and to seek to cancel registered trademarks. Opposition or cancellation proceedings may be filed against our applications and/or registrations, and our applications and/or registrations may not survive such proceedings. Failure to secure such trademark registrations in the United States and in foreign jurisdictions could adversely affect our ability to market our products and our business.

We may be subject to claims that our employees have wrongfully used or disclosed alleged trade secrets of their former employers.

As is common in the medical device industry, we may employ individuals who were previously employed at other companies similar to ours, including our competitors or potential competitors. We may become subject to claims that these employees or we have inadvertently or otherwise used or disclosed trade secrets or other proprietary information of their former employers. Litigation may

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be necessary to defend against these claims. Even if we are successful in defending against these claims, litigation could result in substantial costs and be a distraction to management.

Risks Related to Government and Regulation

Our failure to obtain government approvals, including required FDA approvals, or to comply with ongoing governmental regulations relating to our technologies and products could delay or limit introduction of our products and result in failure to achieve revenue or maintain our ongoing business.

Our development activities and the manufacture and marketing of our ProSomnus precision intraoral medical devices are subject to extensive regulation for safety, efficacy, and quality by numerous government authorities in the United States and internationally. Before receiving FDA or foreign regulatory clearance to market our products which are not presently approved, we will have to demonstrate that these products are safe and effective in the patient population and for the indications that are to be treated. Clinical trials, manufacturing, and marketing of medical devices are subject to the rigorous testing and approval process of the FDA and equivalent foreign regulatory authorities. The Federal Food, Drug, and Cosmetic Act and other federal, state, and foreign statutes and regulations govern and influence the testing, manufacture, labeling, advertising, distribution, and promotion of medical devices. As a result, regulatory approvals for our products not yet approved or that we may develop in the future can take a number of years or longer to accomplish and require the expenditure of substantial financial, managerial, and other resources.

Clinical trials that may be required to support regulatory submissions in the United States are expensive. We cannot assure that we will be able to complete any required additional clinical trial programs successfully within any specific time period, and if such clinical trials take longer to complete than we project, our ability to execute our current business strategy will be adversely affected.

Conducting clinical trials is a lengthy, time-consuming, and expensive process. Before obtaining regulatory approvals for the commercial sale of any products, we must demonstrate through clinical trials the safety and effectiveness of our products. We have incurred, and we will continue to incur, substantial expense for, and devote a significant amount of time to, product development, pilot trial testing, clinical trials, and regulated, compliant manufacturing processes.

Even if completed, we do not know if these trials will produce statistically significant or clinically meaningful results sufficient to support an application for marketing approval. If and how quickly we complete clinical trials is dependent in part upon the rate at which we are able to advance the rate of patient enrollment, and the rate to collect, clean, lock, and analyze the clinical trial database.

Patient enrollment in trials is a function of many factors. These include the design of the protocol; the size of the patient population; the proximity of patients to and availability of clinical sites; the eligibility criteria for the study; the perceived risks and benefits of the product candidate under study; the medical investigators’ efforts to facilitate timely enrollment in clinical trials; the patient referral practices of local physicians; the existence of competitive clinical trials; and whether other investigational, existing, or new products are available or cleared for the indication. If we experience delays in patient enrollment and/or completion of our clinical trial programs, we may incur additional costs and delays in our development programs and may not be able to complete our clinical trials on a cost-effective or timely basis. Accordingly, we may not be able to complete the clinical trials within an acceptable time frame, if at all. If we fail to enroll and maintain the number of patients for which the clinical trial was designed, the statistical power of that clinical trial may be reduced, which would make it harder to demonstrate that the product candidate being tested in such clinical trial is safe and effective. Further, if we or any third party have difficulty enrolling a sufficient number of patients in a timely or cost-effective manner to conduct clinical trials as planned, or if enrolled patients do not complete the trial as planned, we or a third party may need to delay or terminate ongoing clinical trials, which could negatively affect our business.

The results of our clinical trials may not support either further clinical development or the commercialization of any new product candidates or modifications to existing products.

Even if our ongoing or contemplated clinical trials are completed as planned, their results may not support either the further clinical development or the commercialization of any new product candidates or modifications of existing products. The FDA or government authorities may not agree with our conclusions regarding the results of our clinical trials. Success in preclinical testing and early clinical trials does not ensure that later clinical trials will be successful, and the results from any later clinical trials may not replicate the results of prior clinical trials and pre-clinical testing. The clinical trial process may fail to demonstrate that our product candidates are safe and effective for indicated uses. This failure would cause us to abandon a product candidate or a modification to any existing product and may delay the development of other product candidates. Any delay in, or termination of, our clinical trials

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could delay the filing of our 510(k)’s and, ultimately, our ability to commercialize our product candidates and generate product revenue. Each Class I and Class II medical device marketed in the United States must receive a 510(k) clearance from the FDA. A 510(k) is a premarket submission made to FDA to demonstrate that the device to be marketed is at least as safe and effective as, or substantially equivalent to, a legally marketed device. Companies must compare their device to one or more similar legally marketed devices, commonly known as “predicates,” and make and support their substantial equivalency claims. The submitting company may not proceed with product marketing until it receives an order from the FDA declaring a device substantially equivalent.

The substantially equivalent determination is usually made within 90 days and is based on the information submitted by the applicant.

In addition, we or the FDA may suspend our clinical trials at any time if it appears that we are exposing participants to unacceptable health risks or if the FDA finds deficiencies in the conduct of these trials. A number of companies in the medical technology industry have suffered significant setbacks in advanced clinical trials despite promising results in earlier trials. In the end, we may be unable to develop marketable products.

Modifications to our ProSomnus precision intraoral medical devices may require additional FDA approvals which, if not obtained, could force us to cease marketing and/or recall the modified device until we obtain new approvals.

After a device receives a 510(k) clearance, any modification that could significantly affect its safety or effectiveness, or that would constitute a major change in its intended use, requires a new 510(k) clearance or could require a premarket approval (“PMA”). PMA is the FDA process of scientific and regulatory review to evaluate the safety and effectiveness of Class III medical devices. Class III devices are those that support or sustain human life, are of substantial importance in preventing impairment of human health, or which present a potential, unreasonable risk of illness or injury. Currently, we do not market devices within this Class III category, nor do we intend to in the foreseeable future. However, the FDA requires each manufacturer to make this determination in the first instance, but the FDA can review any decision. If the FDA disagrees with a manufacturer’s decision not to seek a new 510(k) clearance, the agency may retroactively require the manufacturer to seek 510(k) clearance or PMA approval. The FDA also can require the manufacturer to cease marketing and/or recall the modified devices until 510(k) clearance or PMA approval is obtained. We cannot assure you that the FDA would agree with any of our decisions not to seek 510(k) clearance or PMA approval. If the FDA requires us to seek 510(k) clearance or PMA approval for any modification, we also may be required to cease marketing and/or recall the modified device until we obtain a new 510(k) clearance or PMA approval.

Our ProSomnus precision intraoral medical device has received 510(k) Class II clearance from the FDA for treating mild to moderate OSA and snoring in adults.

We are subject to inspection and market surveillance by the FDA to determine compliance with regulatory requirements. If the FDA finds that we have failed to comply, the agency can institute a wide variety of enforcement actions which may materially affect our business operations.

Although we are not currently subject to any FDA warning letters, censures or audits, we are subject to inspection and market surveillance by the FDA to determine compliance with regulatory requirements. If the FDA finds that we have failed to comply, the agency can institute a wide variety of enforcement actions, ranging from a public warning letter to more severe sanctions such as:

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The FDA also has the authority to request repair, replacement, or refund of the cost of any medical device manufactured or distributed by us. Our failure to comply with applicable requirements could lead to an enforcement action that may have an adverse effect on our financial condition and results of operations.

Our ProSomnus precision intraoral medical devices are subject to extensive governmental regulation that could prevent us from selling our ProSomnus precision intraoral medical devices or introducing new and/or improved products and services in the United States or internationally.

Our precision intraoral medical devices, manufacturing activities, and remote monitoring services are subject to extensive regulation by a number of governmental agencies, including the FDA and comparable international regulatory bodies. We are required to:

Compliance with the rules and regulations of these various regulatory bodies may delay or prevent us from introducing any new models of our ProSomnus precision intraoral medical devices or other new products or services. In addition, government regulations may be adopted that could prevent, delay, modify, or rescind regulatory clearance or approval of our products.

Our manufacturing activities are further required to demonstrate compliance with the FDA’s quality system regulations. The FDA enforces their quality system regulations through pre-approval and periodic post- approval inspections by representatives from the FDA. These regulations relate to product testing, vendor qualification, design control, and quality assurance, as well as the maintenance of records and documentation.

If we fail to conform to these regulations, the FDA may take actions that could seriously harm our business. These actions include sanctions, including temporary or permanent suspension of our operations, product recalls and marketing restrictions. A recall or other regulatory action could substantially increase our costs, damage our reputation, and materially affect our operating results.

Our relationships with dentists, other healthcare providers, and third-party payors will be subject, directly or indirectly, to federal and state healthcare fraud and abuse laws, false claims laws, health information privacy and security laws, and other healthcare laws and regulations. If we are unable to comply, or have not fully complied, with such laws, we could face substantial penalties.

Healthcare providers (including dentists), physicians, and third-party payors in the United States and elsewhere will play a primary role in the recommendation of our ProSomnus precision intraoral medical devices. Our current and future arrangements with healthcare professionals, principal investigators, consultants, customers, and third-party payors may subject us to various federal and state fraud and abuse laws and other healthcare laws, including, without limitation, the federal Anti-Kickback Statute, the federal civil and criminal false claims laws, and the law commonly referred to as the Physician Payments Sunshine Act and regulations. These laws will impact, among other things, our clinical research, sales, marketing, and educational programs. In addition, we may be subject to patient privacy laws by both the federal government and the states in which we conduct or may conduct our business. The laws that will affect our operations include, but are not limited to:

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Because of the breadth of these laws and the narrowness of the statutory exceptions and safe harbors available, it is possible that some of our business activities could be subject to challenge under one or more of such laws.

It is possible that governmental authorities will conclude that our business practices may not comply with current or future statutes, regulations, or case law involving applicable fraud and abuse or other healthcare laws and regulations. If our operations are found to be in violation of any of these laws or any other governmental regulations that may apply to us, we may be subject to significant civil, criminal, and administrative penalties, damages, fines, disgorgement, imprisonment, exclusion of our products from government funded healthcare programs, such as Medicare and Medicaid, additional reporting requirements, and oversight if we become subject to a corporate integrity agreement or similar agreement to resolve allegations of non-compliance with these laws and the curtailment or restructuring of our operations.

The risk of our being found in violation of these laws is increased by the fact that many of them have not been fully interpreted by the regulatory authorities or the courts, and their provisions are open to a variety of interpretations. Efforts to ensure that our business arrangements with third parties will comply with applicable healthcare laws and regulations will involve substantial costs. Any action against us for violation of these laws, even if we successfully defend against it, could cause us to incur significant legal expenses and divert our management’s attention from the operation of our business. The shifting compliance environment and

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the need to build and maintain robust and expandable systems to comply with multiple jurisdictions with different compliance and/or reporting requirements increases the possibility that a healthcare company may run afoul of one or more of the requirements.

The misuse or off-label use of our ProSomnus precision intraoral medical devices may harm our reputation in the marketplace, result in injuries that lead to product liability suits, or result in costly investigations, fines, or sanctions by regulatory bodies if we are deemed to have engaged in the promotion of these uses, any of which could be costly to our business.

We train our marketing personnel and direct sales force to not promote our ProSomnus precision intraoral medical devices for uses outside of the FDA-cleared indications for use, known as off-label uses. We cannot, however, prevent a dental or medical professional from using our ProSomnus precision intraoral medical devices off-label when, in their independent professional medical judgment, he or she deems it appropriate. There may be increased risk of injury or other side effects to patients if physicians attempt to use our ProSomnus precision intraoral medical devices off-label. Furthermore, the use of our ProSomnus precision intraoral medical devices for indications other than those cleared by the FDA or cleared by any foreign regulatory body may not effectively treat such conditions, which could harm our reputation in the marketplace among physicians and patients.

Given that we are aware that, notwithstanding our training guidelines, certain sleep dentists may use our ProSomnus precision intraoral medical devices off-label, there is a risk that we could face regulatory scrutiny as a result of such use. If the FDA or any foreign regulatory body determines that our promotional materials or training constitute promotion of an off-label use, it could request that we modify our training or promotional materials or subject us to regulatory or enforcement actions, including the issuance or imposition of an untitled letter, which is used for violations that do not necessitate a warning letter, injunction, seizure, civil fine, or criminal penalties. It is also possible that other federal, state, or foreign enforcement authorities might take action under other regulatory authority, such as false claims laws, if they consider our business activities to constitute promotion of an off-label use, which could result in significant penalties, including, but not limited to, criminal, civil, and administrative penalties, damages, fines, disgorgement, exclusion from participation in government healthcare programs, and the curtailment of our operations.

In addition, dentists may misuse our ProSomnus precision intraoral medical devices or use improper techniques if they are not adequately trained, potentially leading to injury and an increased risk of product liability. If our ProSomnus precision intraoral medical devices are misused or used with improper technique, we may become subject to costly litigation by our customers or their patients. Product liability claims could divert management’s attention from our core business, be expensive to defend, and result in sizeable damage awards against us that may not be covered by insurance.

We could be adversely affected by violations of the U.S. Foreign Corrupt Practices Act and similar worldwide anti- bribery and anti-kickback laws with respect to our activities outside the United States.

We distribute our products to locations within and outside the United States in Canada. Our business plan also anticipates distribution of our products outside of the United States and Canada. The U.S. Foreign Corrupt Practices Act, and other similar anti-bribery and anti-kickback laws and regulations, generally prohibit companies and their intermediaries from making improper payments to non-U.S. officials for the purpose of obtaining or retaining business. As we expect to expand our international operations in the future, we will become increasingly subjected to these laws and regulations. We cannot assure you that we will be successful in preventing our agents from taking actions in violation of these laws or regulations. Such violations, or allegations of such violations, could disrupt our business and result in a material adverse effect on our financial condition, results of operations, and cash flows.

Risks Related to our Securities

If we do not regain compliance with or continue to satisfy the Nasdaq continued listing requirements, our common stock could be delisted from the Nasdaq.

The listing of our common stock on the Nasdaq Global Market (“Nasdaq”) is contingent on our compliance with the Nasdaq’s conditions for continued listing. We are currently not in compliance with Nasdaq listing requirements, specifically those that require us to maintain a minimum market value of publicly held shares of at least $15.0 million, maintain a minimum market value of listed securities of at least $50.0 million and maintain a minimum bid price of at least $1.00, and must regain compliance with such requirements on or prior to March 18, 2024, February 12, 2024 and April 30, 2024, respectively. If we are unable to regain such compliance, we will cease to be eligible to trade on Nasdaq and will likely be delisted by Nasdaq.

If we were to fail to meet a Nasdaq listing requirement, we may be subject to delisting by the Nasdaq. In the event our common stock is no longer listed for trading on Nasdaq, our trading volume and share price may decrease and we may experience

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further difficulties in raising capital, which could materially affect our operations and financial results. Further, delisting from the Nasdaq could also have other negative effects, including potential loss of confidence by partners, lenders, suppliers and employees and could also trigger various defaults under our financing arrangements and other outstanding agreements. Finally, delisting could make it harder for us to raise capital and sell securities. You may experience future dilution as a result of future equity offerings. In order to raise additional capital, we may in the future offer additional shares of our common stock or other securities convertible into or exchangeable for our common stock.

Concentration of ownership among ProSomnus’s existing executive officers, directors and their affiliates may prevent new investors from influencing significant corporate decisions.

Based on their holdings as of December 6, 2023 and after giving effect to the results from the Special Meeting, our directors and executive officers and their affiliates as a group beneficially owned approximately 11.9% of our outstanding Common Stock. As a result, these stockholders will be able to exercise a significant level of control over all matters requiring stockholder approval, including the election of directors, any amendment of our certificate of incorporation and any approval of significant corporate transactions. This control could have the effect of delaying or preventing a change of control or changes in management and will make the approval of certain transactions difficult or impossible without the support of these stockholders.

Sales of a substantial number of shares of our securities in the public market could cause the price of our securities to fall.

As of December 6, 2023, after giving effect to the results from the Special Meeting, we had approximately 16,398,599 outstanding shares of Common Stock.

In addition, as of December 6, 2023, we may issue the following additional shares of Common Stock:

To the extent any or all such shares of Common Stock are issued, such additional shares of Common Stock will result in dilution to the holders of our Common Stock and increase the number of shares eligible for resale in the public market.

The registration statement of which this prospectus forms a part covers the resale of an aggregate of 45,272,288 shares of Common Stock by the Selling Securityholders. The Selling Securityholders will determine the timing, pricing and rate at which they sell the shares being registered for resale on the registration statement of which this prospectus forms a part into the public market. As of December 6, 2023 and after giving effect to the results of the Special Meeting, the shares being registered for resale, assuming the full conversion or exercise of the Transaction Warrants, the shares of Series A Preferred Stock, and the Exchange Notes for Common Stock, represented approximately 67.8% of the total number of shares outstanding. Significant sales of shares of Common Stock pursuant to this prospectus or otherwise may have negative pressure on the public trading price of our Common Stock and could impair our ability to raise capital through the sale of additional equity securities. We are unable to predict the effect that sales may have on the prevailing market price of our Common Stock and warrants.

Furthermore, pursuant to the registration rights agreement entered into in connection with the Business Combination, certain stockholders can demand that we register their registrable securities under certain circumstances and also have piggyback registration

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rights for these securities in connection with certain registrations of securities that we undertake. We also granted certain registration rights to the investors party to the Securities Purchase Agreement, which are intended to be partially satisfied by the registration statement of which this prospectus forms a part.

We have filed and intend to maintain this registration statement to which this prospectus forms a part in order to facilitate registration of those sales. The registration of these securities will permit the exercise of such securities or the public resale of such securities, as applicable. The registration and availability of such a significant number of securities for trading in the public market may have an adverse effect on the market price of our securities.

There is no guarantee that any of our warrants will be in the money, and they may expire worthless.

As of the date of this prospectus, we have 6,512,087 warrants to purchase Common Stock, which are exercisable at a price of $11.50 per share, and 5,545,524 Transaction Warrants to purchase Common Stock, which are exercisable at a price of $1.00 per shares, outstanding. The likelihood that the holders of the Transaction Warrants or the other warrants will exercise their respective warrants, and therefore the amount of cash proceeds that we would receive, is dependent upon the market price of our Common Stock, which is currently below the exercise price for our Transaction Warrants and our other warrants. If the market price of our Common Stock continues to be less than the exercise price, it is unlikely that holders will exercise such warrants, and therefore unlikely that we will receive any proceeds from the exercise of such warrants in the near future, or at all.

Our amended and restated certificate of incorporation grants our board the power to issue additional shares of common and preferred stock and to designate series of preferred stock, all without stockholder approval.

As of December 6, 2023, we were authorized to issue 151,500,000 shares of capital stock, of which 150,000,000 shares are authorized as common stock and 1,500,000 shares are authorized as preferred stock. Our board of directors, without any action by our stockholders, has and may again designate and issue shares of preferred stock in such series as it deems appropriate and establish the rights, preferences and privileges of such shares, including dividends, liquidation and voting rights, provided it is consistent with Delaware law.

The rights of holders of our preferred stock that have and may be issued could be superior to the rights of holders of Common Stock. The designation and issuance of shares of capital stock having preferential rights could adversely affect other rights appurtenant to shares of the Common Stock. Further, any issuances of additional stock (common or preferred) will dilute the percentage of ownership interest of then current holders of our capital stock and may dilute the book value per share.

Specifically, pursuant to the Securities Purchase Agreement, we issued an aggregate of 10,426 shares of Series A Convertible Preferred Stock. With respect to any matter submitted to the vote of the holders of Common Stock, the holders of the Series A Preferred Stock are entitled to vote the whole number of votes equal to the number of shares of Common Stock into which such holder’s Series A Preferred Stock would be convertible on the record date for the vote or consent of stockholders at a conversion price of $1.04 per share of Common Stock rounded to the nearest whole share together, subject to certain limitations. The Series A Preferred Stock also ranks senior to the Common Stock and any other pari passu capital stock of the Company with respect to dividends, distributions and payments upon a liquidation event. Furthermore, the Series A Preferred Stock is convertible into Common Stock, subject to certain limitations, at a rate of 1,000 shares of Common Stock per one share of Series A Preferred Stock.

Servicing our existing and future debt, including the Convertible Notes, may require a significant amount of cash, and we may not have sufficient cash flow from our business to pay our indebtedness.

As of September 30, 2023, after giving effect to the in-kind interest payment on such date, we had approximately $35.9 million aggregate principal amount of the Convertible Notes outstanding. Our ability to make scheduled payments of the principal of, to pay interest on, or to refinance our indebtedness, including the Convertible Notes, depends on our future performance, which is subject to economic, financial, competitive, and other factors beyond our control. Our business may not generate cash flow from operations in the future sufficient to service our debt and make necessary capital expenditures. If we are unable to generate such cash flow, we may be required to adopt one or more alternatives, such as selling assets, restructuring debt, or obtaining additional debt financing or equity capital on terms that may be onerous or highly dilutive. Our ability to refinance any future indebtedness will depend on the capital markets and our financial condition at such time. We may not be able to engage in any of these activities or engage in these activities on desirable terms, which could result in a default on our debt obligations. In addition, any of our future debt agreements may contain restrictive covenants that may prohibit us from adopting any of these alternatives. Our failure to comply with these covenants could result in an event of default which, if not cured or waived, could result in the acceleration of our debt.

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In addition, our indebtedness, combined with our other financial obligations and contractual commitments, could have other important consequences. For example, it could:

Any of these factors could harm our business, results of operations, and financial condition. In addition, if we incur additional indebtedness, the risks related to our business and our ability to service or repay our indebtedness would increase.

We have not paid cash dividends on our capital stock, and we do not anticipate paying cash dividends in the foreseeable future.

We have never paid cash dividends on any of our capital stock and we currently intend to retain any future earnings to fund the growth of our business. Any determination to pay cash dividends in the future will be at the discretion of our board of directors and will depend on our financial condition, operating results, capital requirements, general business conditions and other factors that the board may deem relevant. As a result, capital appreciation, if any, of our Common Stock will be the sole source of gain for the foreseeable future.

The trading price our securities is likely to be volatile, and you may not be able to sell our securities at or above the price you paid.

We expect the trading price of our Common Stock and Warrants to be volatile and could be subject to wide fluctuations in response to various factors, some of which are beyond our control. These factors include, but are not limited to:

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In addition, the stock market in general, and Nasdaq in particular, has experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating performance of those companies. Broad market and industry factors may seriously affect the market price of our securities, regardless of our actual operating performance. In addition, in the past, following periods of volatility in the overall market and the market price of a particular company’s securities, securities class action litigation has often been instituted against these companies. This litigation, if instituted against us, could result in substantial costs and a diversion of our management’s attention and resources.

If securities or industry analysts issue an adverse opinion regarding our Common Stock or do not publish research or reports about us, the price and trading volume of our securities could decline.

The trading market for our Common Stock and Warrants will depend in part on the research and reports that equity research analysts publish about us and our business. We do not control these analysts or the content and opinions included in their reports. Securities analysts may elect not to provide research coverage of our company and such lack of research coverage may adversely affect the market price of our Common Stock and Warrants. The price of our Common Stock and Warrants could also decline if one or more equity research analysts downgrade their recommendations with respect to our Common Stock and Warrants, change their price targets, issue other unfavorable commentary or cease publishing reports about us or our business. If one or more equity research analysts cease coverage of the company, we could lose visibility in the market, which in turn could cause the price of our securities to decline.

We may redeem your unexpired warrants other than the Transaction Warrants prior to their exercise at a time that is disadvantageous to you, thereby making your warrants worthless.

We may redeem outstanding warrants other than the Transaction Warrants prior to their exercise at a time that is disadvantageous to you, thereby significantly impairing the value of such warrants. We will have the ability to redeem outstanding warrants other than the Transaction Warrants at any time after they become exercisable and prior to their expiration, at a price of $0.01 per warrant, provided that the closing price of Common Stock equals or exceeds $18.00 per share (as adjusted for share sub-divisions, share capitalizations, reorganizations, recapitalizations and the like) for any 20 trading days within a 30 trading day period ending on the third trading day prior to the date on which a notice of redemption is sent to the warrant holders.

We will not redeem such warrants as described above unless a registration statement under the Securities Act covering the Common Stock issuable upon exercise of such warrants is effective and a current prospectus relating to the Common Stock is available throughout the 30-day redemption period. If and when such warrants become redeemable by us, we may exercise our redemption right even if we are unable to register or qualify the underlying securities for sale under all applicable state securities laws. Redemption of such warrants could force you (i) to exercise your warrants and pay the exercise price therefor at a time when it may be disadvantageous for you to do so, (ii) to sell your warrants at the then-current market price when you might otherwise wish to hold your warrants, or (iii) to accept the nominal redemption price which, at the time the outstanding warrants are called for redemption, is likely to be substantially less than the market value of your warrants.

The value received upon exercise of such warrants (1) may be less than the value the holders would have received if they had exercised their warrants at a later time where the underlying share price is higher and (2) may not compensate the holders for the value of the warrants.

In the event we elect to redeem such warrants that are subject to redemption, we will mail the notice of redemption by first class mail, postage prepaid, not less than thirty days prior to the redemption date to the registered holders of the warrants to be redeemed at their last addresses as they appear on the registration books. Any notice mailed in such manner will be conclusively presumed to have been duly given whether or not the registered holder received such notice, and we are not required to provide any

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notice to the beneficial owners of such warrants. Additionally, while we are required to provide such notice of redemption, we are not separately required to, and do not currently intend to, notify any holders of when such warrants become eligible for redemption. If you do not exercise your warrants in connection with a redemption, including because you are unaware that such warrants are being redeemed, you would only receive the nominal redemption price for your warrants.

Anti-takeover provisions contained in our amended and restated certificate of incorporation and bylaws, and in applicable law, could impair a takeover attempt.

Our amended and restated certificate of incorporation and bylaws afford certain rights and powers to our board of directors that could contribute to the delay or prevention of an acquisition that it deems undesirable, including:

We are also subject to Section 203 of the Delaware General Corporation Law and other provisions of Delaware law that limit the ability of stockholders in certain situations to effect certain business combinations. Any of the foregoing provisions and terms that has the effect of delaying or deterring a change in control could limit the opportunity for stockholders to receive a premium for their shares of Common Stock, and could also affect the price that some investors are willing to pay for the Common Stock.

Our amended and restated certificate of incorporation provides, subject to limited exceptions, that the Court of Chancery of the State of Delaware will be the sole and exclusive forum for certain stockholder litigation matters, which could limit stockholders’ ability to obtain a favorable judicial forum for disputes with us or our directors, officers, employees or stockholders.

Our amended and restated certificate of incorporation requires, to the fullest extent permitted by law, that derivative actions brought in our name, actions against directors, officers and employees for breach of fiduciary duty and other similar actions may be brought in the Court of Chancery in the State of Delaware or, if that court lacks subject matter jurisdiction, another federal or state court situated in the State of Delaware. These provisions will not apply to suits brought to enforce any liability or duty created by the Securities Act, the Securities Exchange Act, or any other claim for which the federal courts have exclusive jurisdiction. Any person or entity purchasing or otherwise acquiring any interest in shares of our capital stock shall be deemed to have notice of and consented to the forum provisions in the amended and restated certificate of incorporation. In addition, the amended and restated certificate of incorporation and bylaws will provide that, to the fullest extent permitted by law, claims made under the Securities Act must be brought in federal district court.

This choice of forum provision may limit a stockholder’s ability to bring a claim in a judicial forum that it finds favorable for disputes with us or any of our directors, officers, other employees or stockholders, which may discourage lawsuits with respect to such claims and result in increased costs for investors to bring a claim. Alternatively, if a court were to find the choice of forum provision contained in the amended and restated certificate of incorporation to be inapplicable or unenforceable in an action, we may incur

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additional costs associated with resolving such action in other jurisdictions, which could harm our business, operating results and financial condition.

General Risk Factors

Damage to our reputation or our brand could negatively impact our business, financial condition, and results of operations.

We must grow the value of our brand to be successful. We intend to develop a reputation based on the high quality of our products, services, and trained personnel, as well as of our particular culture and the experience of our patients with our recommended sleep dentists. If we do not make investments in areas such as marketing and advertising, as well as personnel training, the value of our brand may not increase or may be diminished. Any incident, real or perceived, regardless of merit or outcome, that adversely affects our brand, such as, but not limited to, patient disability or death due to malpractice or allegations of malpractice or failure to comply with federal, state, or local regulations, including allegations or perceptions of non-compliance or failure to comply with ethical and operational standards, could significantly reduce the value of our brand, expose us to negative publicity, and damage our overall business and reputation.

Our headquarters, digital medical device modeling processes, and other manufacturing processes are principally located in regions that are subject to earthquakes and other natural disasters.

Our corporate headquarters, sales, and marketing organization and manufacturing processes are in a single facility located in Pleasanton, California. Such location is in an earthquake zone and may be subject to other natural disasters. If there is a major earthquake or any other natural disaster in a region where our facility is located, our ability to respond to customer inquiries or manufacture and ship our precisions intraoral medical devices could be compromised which could result in our customers experiencing a significant delay in receiving their devices and a decrease in service levels for a period of time. Any such business interruption could materially and adversely affect our business, financial condition, and results of operations.

If payments from commercial or governmental payors are significantly delayed, reduced, or eliminated, our business, prospects, results of operations, and financial condition could be adversely affected.

We will depend upon revenue from sales of our ProSomnus precision intraoral medical devices, and in turn indirectly on reimbursement from third-party payors for such devices. The amount that dentists receive in payment for our ProSomnus precision intraoral medical devices may be adversely affected by factors we do not control, including federal or state regulatory or legislative changes, cost-containment decisions, and changes in reimbursement schedules of third-party payors. Any reduction or elimination of these payments could have a material adverse effect on our business, prospects, results of operations, and financial condition.

Additionally, the reimbursement process is complex and can involve lengthy delays. Also, third-party payors may reject, in whole or in part, requests for reimbursement based on determinations that certain amounts are not reimbursable under plan coverage, that services provided were not medically necessary, that additional supporting documentation is necessary, or for other reasons. Retroactive adjustments by third-party payors may be difficult or cost prohibitive to appeal, and such changes could materially reduce the actual amount received by patients or dentists. Delays and uncertainties in the reimbursement process may be out of our control and may adversely affect our business, prospects, results of operations, and financial condition.

Significant changes in our payor mix resulting from fluctuations in the types of patients seen by dentists could have a material adverse effect on our business, prospects, results of operations, and financial condition.

Our results may change from period to period due to fluctuations in dentists’ payor mix. Payor mix refers to the relative amounts we receive from the mix of persons or entities that pay or reimburse dentists for healthcare services. Payment or reimbursement amounts can vary from payor to payor, by geographic jurisdiction, and over time. A significant shift in our payor mix toward a higher percentage of self-pay or patients whose treatment is paid in whole or part by a governmental payor, could occur for reasons beyond our control and could lessen demand for our ProSomnus precision intraoral medical devices, which in turn could have a material adverse effect on our business, prospects, results of operations, and financial condition.

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We may pursue acquisitions of complementary businesses or technologies, which could divert the attention of management and which may not be integrated successfully into our existing business.

We may pursue acquisitions or licenses of technology to, among other things, expand the scope of products and services we provide. We cannot guarantee that we will identify suitable acquisition candidates, that acquisitions will be completed on acceptable terms, or that we will be able to successfully integrate the operations of any acquired business into our existing business. The acquisition and integration of another business or technology would divert management attention from other business activities, including our core business. In addition, we may borrow money or issue capital stock to finance acquisitions. Such borrowings might not be available on terms as favorable to us as our current borrowing terms and may increase our leverage, and the issuance of capital stock could dilute the interests of our stockholders.

Our business is seasonal, which impacts our results of operations.

We believe that the patient volumes of sleep medicine healthcare will be sensitive to seasonal fluctuations in urgent care and primary care activity. Typically, winter months see a higher occurrence of influenza, bronchitis, pneumonia, and similar illnesses; however, the timing and severity of these outbreaks vary dramatically.

Additionally, as consumers shift toward high deductible insurance plans, they are responsible for a greater percentage of their bill, particularly in the early months of the year before other healthcare spending has occurred, which may lead to lower than expected patient volume or an increase in bad debt expense during that period. Our quarterly operating results may fluctuate significantly in the future depending on these and other factors.

We depend on certain key personnel.

We substantially rely on the efforts of our current senior management, including our Chief Executive Officer, Chief Financial Officer and our Chief Technology Officer. Our business would be impeded or harmed if we were to lose their services. In addition, if we are unable to attract, train, and retain highly skilled technical, managerial, product development, sales, and marketing personnel, we may be at a competitive disadvantage and unable to develop new products or increase revenue. The failure to attract, train, retain and effectively manage employees could negatively impact our research and development, sales and marketing and reimbursement efforts. In particular, the loss of sales personnel could lead to lost sales opportunities as it can take several months to hire and train replacement sales personnel. Uncertainty created by turnover of key employees could adversely affect our business.

Members of our board of directors will have other business interests and obligations to other entities.

None of our independent directors will be required to manage our business as their sole and exclusive function and they may have other business interests and may engage in other activities in addition to those relating to us, provided that such activities do not compete with the business of our company or otherwise breach their agreements with us. We are dependent on our directors and executive officers to successfully operate our company. Their other business interests and activities could divert time and attention from operating our business.

We will need to carefully manage our expanding operations to achieve sustainable growth.

To achieve increased revenue levels, market our products internationally, complete clinical studies and develop future products, we believe that we will be required to periodically expand our operations, particularly in the areas of sales and marketing, clinical research, reimbursement, research and development, manufacturing, and quality assurance. As we expand our operations in these areas, management will face new and increased responsibilities. To accommodate any growth and compete effectively, we must continue to upgrade and improve our information systems, procedures, and controls across our business, as well as expand, train, motivate, and manage our workforce. Our future success will depend significantly on the ability of our current and future management to operate effectively. Our personnel, systems, procedures, and controls may not be adequate to support our future operations. If we are unable to effectively manage our expected growth, this could have a material adverse effect on our business, financial condition, and results of operations.

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Downturns or volatility in general economic conditions could have a material adverse effect on our business, financial condition, results of operations and liquidity.

Our revenues and profitability depend significantly on general economic conditions and the demand for our products in the markets in which our customers and their patients are located. Weaknesses in the global economy and financial markets, including the current weaknesses resulting from the ongoing COVID-19 pandemic or geopolitical instability, could lead to lower demand for our products. A decline in patient or customer demand can affect the need that customers have for our products, and the money or insurance available to pay for our devices. Any further adverse changes in economic conditions, including any recession, economic slowdown or disruption of credit markets, or the outbreak of war or conflict, may also lead to lower demand for our products. Volatile and uncertain economic conditions can make it difficult to accurately forecast and plan future business activities.

All of these factors related to general economic conditions, which are beyond our control, could adversely impact our business, financial condition, results of operations and liquidity.

Our management team has limited experience managing a public company.

Most members of our management team have limited or no experience managing a publicly-traded company, interacting with public company investors, and complying with the increasingly complex laws, rules and regulations that govern public companies. There are significant obligations that we will be subject to relating to reporting, procedures and internal controls, and our management team may not successfully or efficiently manage our transition to being a public company. These new obligations and added scrutiny will require significant attention from our management and could divert their attention away from the day-to-day management of our business, which could adversely affect our business, operating results and financial condition.

Inadequate internal controls could result in inaccurate financial reporting.

If we fail to maintain an effective system of internal controls, we may not be able to accurately report our financial results. As a result, our stockholders could lose confidence in our financial reporting, which could adversely affect results of our business and our enterprise value.

We will need to undertake significant efforts to strengthen our processes and systems and adapt them to changes as our business evolves (including with respect to becoming a publicly traded company). This continuous process of maintaining and adapting our internal controls is expensive and time-consuming, and requires significant management attention. We cannot be certain that our internal control measures will, in the future, provide adequate control over our financial processes and reporting. Furthermore, as our business evolves and if we expand through acquisitions of other companies or make significant investments in other companies or enter into joint development and similar arrangements, our internal controls may become more complex and we will require significantly more resources to ensure our internal controls remain effective. Failure to implement required new or improved controls, or difficulties encountered in their implementation, could harm our operating results or cause us to fail to meet our reporting obligations. If we or our independent registered public accounting firm identify material weaknesses, the disclosure of that fact, even if quickly remediated, could reduce the market’s confidence in our financial statements and harm our enterprise value.

Our actual operating results may differ significantly from our guidance.

From time to time, we provide forward looking estimates regarding our future performance that represent our management’s estimates as of a point in time. These forward-looking statements are based on projections prepared by our management. These projections are not prepared with a view toward compliance with published guidelines of the American Institute of Certified Public Accountants, and neither our independent registered public accountants nor any other independent expert or outside party compiles or examines the projections and, accordingly, no such person expresses any opinion or any other form of assurance on our projections.

Projections are based upon a number of assumptions and estimates that, while presented with numerical specificity, are inherently subject to significant business, economic and competitive uncertainties and contingencies, many of which are beyond our control and are based upon specific assumptions with respect to future business decisions and conditions, some of which will change. The principal reason that we provide forward looking information is to provide a basis for our management to discuss our business outlook with stockholders. Forward-looking statements are necessarily speculative in nature, and it can be expected that some or all of the assumptions of our forward-looking statements will not materialize or will vary significantly from actual results. Accordingly, our forward-looking statements are only an estimate of what management believes is realizable as of the date of release. Actual results

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will vary from our forward-looking statements and the variations may be material. In light of the foregoing, investors are urged not to rely upon, or otherwise consider, our guidance in making investment decisions.

We qualify as an “emerging growth company” and a “smaller reporting company” within the meaning of the Securities Act, and if we take advantage of certain exemptions from disclosure requirements available to emerging growth companies or smaller reporting companies, it could make our securities less attractive to investors and may make it more difficult to compare our performance to the performance of other public companies.

We qualify as an “emerging growth company” as defined in Section 2(a)(19) of the Securities Act, as modified by the JOBS Act. As such, we are eligible for and intend to take advantage of certain exemptions from various reporting requirements applicable to other public companies that are not emerging growth companies for as long as we continue to be an emerging growth company, including (a) the exemption from the auditor attestation requirements with respect to internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act, (b) the exemptions from say-on-pay, say-on-frequency and say-on- golden parachute voting requirements, and (c) reduced disclosure obligations regarding executive compensation in our periodic reports and proxy statements. We will remain an emerging growth company until the earliest of (i) the last day of the fiscal year in which the market value of Common Stock that are held by non-affiliates exceeds $700.0 million as of June 30 of that fiscal year, (ii) the last day of the fiscal year in which we have total annual gross revenue of $1.235 billion or more during such fiscal year (as indexed for inflation), (iii) the date on which we have issued more than $1 billion in non-convertible debt in the prior three-year period or (iv) the last day of the fiscal year following the fifth anniversary of the date of the first sale of Common Stock in Lakeshore’s initial public offering of units, consummated on June 15, 2021 (the “IPO”). In addition, Section 107 of the JOBS Act also provides that an emerging growth company can take advantage of the exemption from complying with new or revised accounting standards provided in Section 7(a)(2)(B) of the Securities Act as long as it is an emerging growth company. An emerging growth company can therefore delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. We have elected not to opt out of such extended transition period and, therefore, we may not be subject to the same new or revised accounting standards as other public companies that are not emerging growth companies. Investors may find our securities less attractive because we will rely on these exemptions, which may result in a less active trading market for our securities.

Additionally, we qualify as a “smaller reporting company” as defined in Item 10(f)(1) of Regulation S-K. Smaller reporting companies may take advantage of certain reduced disclosure obligations, including, among other things, providing only two years of audited financial statements. We expect to remain a smaller reporting company until the last day of the fiscal year in which (i) the market value of our common stock held by non-affiliates exceeds $250,000,000 as of the prior June 30, or (ii) our annual revenues exceeded $100,000,000 during such completed fiscal year and the market value of our common stock held by non-affiliates exceeds $700,000,000 as of the prior June 30. To the extent we take advantage of such reduced disclosure obligations, comparison of our financial statements with other public companies may be difficult or impossible.

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USE OF PROCEEDS

All of the Common Stock offered by the Selling Securityholders pursuant to this prospectus will be sold by the Selling Securityholders for their respective accounts. We will not receive any of the proceeds from these sales.

We will receive up to an aggregate of approximately $5.45 million from the exercise of the Transaction Warrants, assuming the exercise in full of all of the Transaction Warrants for cash. We expect to use the net proceeds from the exercise such warrants for general corporate purposes. There is no assurance that the holders of the Transaction Warrants will elect to exercise any or all of such warrants.

The likelihood that the Transaction Warrant holders will exercise their Transaction Warrants, and therefore the amount of cash proceeds that we would receive, is dependent upon the market price of our Common Stock. On December 8, 2023, the closing price of our Common Stock was $0.55 per share. If the market price of our Common Stock continues to be less than the exercise price, it is unlikely that holders will exercise the Transaction Warrants, and therefore unlikely that we will receive any proceeds from the exercise of these warrants and options in the near future, or at all. See “Risk Factors—There is no guarantee that the warrants will be in the money, and they may expire worthless” for more information.

The Selling Securityholders will pay any underwriting fees, discounts and selling commissions incurred by such Selling Securityholders in disposing of their Common Stock. We will bear all other costs, fees and expenses incurred in effecting the registration of the Common Stock covered by this prospectus, including, without limitation, all registration and filing fees, Nasdaq listing fees and fees and expenses of counsel and independent registered public accountants.

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MARKET INFORMATION FOR COMMON STOCK AND DIVIDEND POLICY

Market Information

Our Common Stock and our Public Warrants are listed on the Nasdaq Global Market and Nasdaq Capital Market, respectively, under the symbols “OSA” and “OSAAW,” respectively. As of December 6, 2023, there were 16,398,599 shares of Common Stock issued and outstanding and held of record by 247 holders and 6,512,087 Public Warrants issued and outstanding held of record by 25 holders. The actual number of stockholders is greater than this number of record holders and includes stockholders who are beneficial owners but whose shares are held in street name by brokers and other nominees.

Dividend Policy

We have not paid any cash dividends on our Common Stock to date. The payment of cash dividends on our Common Stock by us in the future will be dependent upon our revenues and earnings, if any, capital requirements and general financial condition and the limitations under the Certificate of Designations for our Series A Preferred Stock. The payment of any dividends on our Common Stock will be within the discretion of our board of directors.

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MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF PROSOMNUS

The following discussion and analysis of the financial condition and results of operations of ProSomnus Holdings, Inc. and its subsidiary prior to the Business Combination and for ProSomnus, Inc. and its subsidiaries subsequent to the Business Combination (for purposes of this section, collectively referred to as the “ProSomnus,” “Company,” “we,” “us” and “our”) should be read together with ProSomnus’s condensed consolidated unaudited financial statements as of September 20, 2023, and for the nine months ended September 30, 2023 and 2022, and its audited consolidated financial statements as of and for the years ended December 31, 2022 and 2021, together with the related notes thereto, included in this prospectus. This discussion contains forward-looking statements based upon current beliefs, plans, and expectations that involve numerous risks, uncertainties and assumptions, including, but not limited to, those described in the section titled “Risk Factors.” Actual results may differ materially from those contained in any forward-looking statements.

Overview

We are a medical technology company focused on the development, manufacturing and marketing of precision intraoral medical devices, a new option for treating and managing patients with mild to moderate Obstructive Sleep Apnea (“OSA”). Each ProSomnus precision intraoral device is personalized based on the anatomy and treatment plan for each patient. Our patented precision devices are engineered to create unique, consistent and predictable biomechanical advantages that lead to effective, comfortable, economical and patient preferred treatment outcomes for patients with OSA.

Our ProSomnus precision intraoral devices are classified by the U.S. Food and Drug Administration (the “FDA”) as Class II medical devices for the treatment of snoring and mild to moderate OSA. We received pre-market notification and FDA clearance pursuant to Section 510(k) of the Federal Food, Drug, and Cosmetic Act (“FDCA”) for our first intraoral device in July 2014 and our devices have been commercially available in the United States since August 2014. To date, over 200,000 ProSomnus precision devices have been prescribed for patients.

Sleep apnea is a serious and chronic respiratory disease that negatively impacts a patient’s sleep, health, and quality of life. OSA is the most common form of sleep apnea. OSA is a medical condition characterized by a cessation of breathing when the tongue, soft palate, and other related tissues in the back of the throat collapse and block the upper airway during sleep, temporarily decreasing the oxygen concentration in the blood. During an OSA episode, the diaphragm and chest muscles must work harder to overcome the obstruction and open the airway. These episodes disrupt the sleep cycle, reduce airflow to vital organs, stress the body, and create a negative feedback loop. If untreated, OSA increases the risk of high blood pressure, hypertension, heart failure, stroke, coronary artery disease and other life-threatening diseases. OSA is associated with a reduction in quality-of-life factors including a higher risk of motor vehicle and operator accidents, workplace errors, absenteeism and more.

Until ProSomnus, there have been few alternatives for OSA patients who refuse or fail CPAP. Historically, treatment alternatives to CPAP have consisted of surgical procedures or legacy dental products. Surgical procedures, such as hypoglossal nerve stimulation and maxillomandibular advancement, are invasive and can be irreversible, expensive, and only suitable for a narrow range of patient types. Legacy dental products, historically, have been associated with inconsistent and unreliable performance. We believe that there is both an urgent clinical need and a strong market opportunity for a treatment alternative that is effective, non-surgical, convenient, and more economical.

ProSomnus therapy is covered by most private insurance payers, Medicare, and by a growing number of public health insurance programs offered in many countries around the world. In the United States an estimated 70% of treatments are paid for by private insurance, 25% are covered by Medicare and the remaining 5% are paid out of pocket by the patient.

Providers are typically reimbursed by private medical insurance in the range of approximately $2,000 to $3,500 per patient for intraoral appliance therapy and by Medicare in the range of approximately $1,250 to $1,800 per patient for intraoral appliance therapy. The average amount varies by insurance provider and Medicare jurisdiction. At these reimbursement levels, we believe that intraoral appliance therapy offers dentists an attractive ratio of revenue per chair time in comparison to other dental procedures.

We market and sell our precision intraoral devices to sleep medicine providers in the United States and in select countries around the world through a direct sales force. We currently have 36 direct sales representatives in the United States, Canada, and Europe. Our sales force focuses their education, promotional and sales efforts on dentists who have developed a specialty in dental sleep medicine, and the physicians who are actively treating OSA.

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We generated revenue of $7.1 million and a net loss of $11.2 million for the three months ended September 30, 2023, compared to revenue of $5.0 million and a net loss of $3.5 million for the three months ended September 30, 2022. We generated revenue of $19.8 million and a net loss of $17.2 million for the nine months ended September 30, 2023, compared to revenue of $13.6 million and a net loss of $9.4 million for the nine months ended September 30, 2022. Accumulated deficit as of September 30, 2023, was $228.0 million.

Macroeconomic Environment

Uncertainty surrounding macroeconomic and geopolitical factors in the U.S. and globally characterized by the supply chain environment, inflationary pressure, higher interest rates, instability in the global financial markets, labor shortages, significant disruptions in the commodities’ markets as a result of the military conflicts in Ukraine and the Middle East, and the introduction of or changes in tariffs or trade barriers may result in a recession, which could have a material adverse effect on our long-term business.

We maintain the majority of our cash and cash equivalents in accounts with major U.S. financial institutions, and our deposits exceed insured limits. Market conditions could impact the viability of these institutions. To date, these market conditions and liquidity concerns have not impacted our results of operations. However, in the event of failure of any of the financial institutions where we maintain our cash and cash equivalents, there can be no assurance that we would be able to access uninsured funds in a timely manner or at all. Any inability to access or delay in accessing these funds could adversely affect our business and financial position.

Recent Financing Transaction

On September 20, 2023, we entered into the Securities Purchase Agreement with certain third-party and related party investors, pursuant to which we issued (i) an aggregate of 10,426 shares of Series A Preferred Stock, par value $0.0001 per share, for an aggregate purchase price of $10.4 million at a per share purchase price of $1,000, and (ii) (A) with respect to Selling Securityholders that held the Existing Convertible Notes, new convertible notes on substantially similar terms to such Noteholder Investor’s Existing Convertible Notes other than that such new notes will be convertible into shares of Common Stock, at a conversion price of $1.00 per share subject to the terms and conditions of the applicable new indenture pursuant to which the applicable series of New Notes, in exchange for such Noteholder Investor’s portion of the principal amount outstanding of the Existing Notes pursuant to the Exchange Agreements and/or (B) the Transaction Warrants.

These investors include certain members of our board of directors and certain of our executive officers, as well as affiliates and investment vehicles for such persons that held our Existing Convertible Notes. Convertible Noteholders representing approximately $3.4 million in principal amount of the Senior Convertible Notes and approximately $12.1 million in principal amount of the Subordinated Convertible Notes participated in the Financing Transaction.

The Financing Transaction closed on multiple dates: September 20, 2023, September 26, 2023, and October 20, 2023. The exchange of the Existing Convertible Notes, including the entrance into the indentures governing the New Notes, occurred on October 11, 2023.

As a result of the Financing Transaction, in September 2023, the Noteholder Investors effectively contributed an aggregate of $6.4 million of cash to us in exchange for 6,376 shares of Series A Preferred Stock, Transaction Warrants exercisable into an aggregate of 1,404,524 shares of Common Stock, and the repricing of the conversion feature of their Convertible Notes, while the other Investors contributed an aggregate of $3.2 million of cash to us in exchange for 3,150 shares of Series A Preferred Stock and Transaction Warrants exercisable into an aggregate of 3,150,000 shares of Common Stock.

Factors Affecting Results of Operations

The following factors have been important to our business, and we expect them to impact our results of operations and financial condition in future periods:

The core focus of our sales initiative is to expand our direct sales organization in North America. With representatives located in high-value metropolitan areas, the direct sales organization will focus primarily on dentists and physicians who are practicing sleep medicine. The main purpose of this initiative is to increase case volume from these dentists and physicians by facilitating a referral relationship between dentists and physicians, helping them expand the dental sleep medicine aspect of their

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practices and educating them on the advantages of the ProSomnus intraoral devices. We also intend to further expand our sales to integrated health systems and hospital networks. We are currently initiating the marketing and sales of our ProSomnus intraoral devices in several European countries and intend to further expand our marketing and direct sales into international markets.

We intend for product line extensions to focus on enabling ProSomnus to capture a larger share of treatments for patients with OSA, snoring and other related sleep disordered breathing conditions. We expect that each product line extension will be designed to optimize ProSomnus products for a wider range of case types, treatment philosophies, and indications. We expect that each product line extension will utilize our unique manufacturing platform and potentially create additional opportunities for intellectual property.

We received FDA clearance for an intraoral device that enables remote patient monitoring services in November 2020. The sales of such remote patient monitoring services in connection with our intraoral devices could result in an additional recurring revenue stream that is reimbursable by insurance. Our remote patient monitoring services will be based on the incorporation of a sensor into the ProSomnus intraoral devices that provides continuous monitoring of physiological health data that physicians want and cannot typically obtain from CPAP or other intraoral appliance therapy devices. Our market research indicates that our remote patient monitoring services could be a significant driver of greater market acceptance and expansion and result in significant future revenues.

Description of Certain Components of Financial Data

Revenue

We derive primarily all of our revenue from the sale of our customized precision intraoral medical devices that clinicians use to treat patients diagnosed with Obstructive Sleep Apnea. Our revenue recognition policies are discussed in more detail in Note 2 to our condensed consolidated financial statements and notes thereto for the three and nine months ended September 30, 2023 and 2022 included elsewhere in this prospectus.

Cost of revenue

Cost of revenue consists primarily of materials and the costs related to the production of the intraoral device, including employee compensation, other employee-related expenses, inbound shipping and allocable manufacturing overhead costs. ProSomnus has a policy to classify initial recruiting and training costs of new manufacturing employees as part of research and development expenses in the consolidated statements of operations.

Sales and marketing

Sales and marketing costs primarily consist of salaries, bonuses, benefits and travel costs for employees engaged in sales and marketing activities, as well as website, advertising, conferences and other promotional costs. We expect sales and marketing expenses to continue increasing in absolute dollars as we expand our sales organization both domestically and internationally.

Research and development

Research and development costs consist of production costs for prototypes, test and pre-production units, supplies, consulting, and personnel costs, including salaries, bonuses and benefit costs. Most of our research and development expenses are related to developing new products and services. Consulting expenses are related to research and development activities as well as clinical and regulatory activities and certain third-party engineering costs. Research and development expenses are expensed as incurred. We expect to continue to make substantial investments in product development. As a result, research and development expenses are expected to increase in absolute dollars as the research and development efforts increase.

General and administrative

General and administrative expenses primarily consist of labor, bonuses, benefits, general insurance, office expenses and outside services. Outside services consist of audit, tax, legal and other professional fees. We expect that general and administrative expenses will increase in absolute dollars as a result of operating as a public company.

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Other income (expense)

Other income (expense) primarily relates to interest expense as well as the change in fair value of our convertible debt, earnout liability, warrants classified as liabilities, and losses on the extinguishment of debt, and other financing costs.

The components of interest expense include interest expense incurred under our Convertible Notes, subordinated notes, subordinated loan and security agreements, unsecured subordinated promissory notes, equipment financing and capital lease obligations.

Results of Operations

Comparison of the three months ended September 30, 2023 and 2022

(n/m = not meaningful)

Revenue for the three months ended September 30, 2023, totaled $7.1 million, reflecting a 41.5% increase over $5.0 million reported for the same period in 2022. This increase was primarily driven by increased unit volume due to increased sales and marketing investments and mix shift to the new EVO Products. We believe the underlying growth in product sales is attributable to the growing clinical adoption of ProSomnus’s precision devices in both the United States and Europe and positive impacts of the expanded field sales team during the first half of 2023.

Our gross margin remained relatively consistent for the three months ended September 30, 2023, compared to the three months ended September 30, 2022 at 49%. We moved into a new manufacturing facility during 2023. The facility quadrupled our previous capacity and increased overhead costs absorbed into product costs. As volumes increase, we expect to be able to leverage the new facility to improve the gross margin.

Sales and marketing expense increased by $0.9 million, or 39.7%, for the three months ended September 30, 2023, compared to the three months ended September 30, 2022. This increase was primarily driven by an increase in personnel expenses due to expansion of the sales team and travel and in-person events.

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Research and development expense increased by $0.4 million, or 51.1%, for the three months ended September 30, 2023, compared to the three months ended September 30, 2022. This increase was primarily driven by an increase in headcount-related personnel and research and development.

General and administrative expense increased by $1.8 million, or 117.3%, for the three months ended September 30, 2023, compared to the three months ended September 30, 2022. This increase was driven primarily by professional services and legal fees of $0.9 million, headcount-related personnel costs of $0.6 million, and $0.3 million of various other expenses.

Other income (expense) increased by $4.0 million for the three months ended September 30, 2023, compared to the same prior period as a result of a $2.5 million financing loss and a $1.5 million write-off of debt financing costs in connection with our September 2023 Financing Transaction.

Total other expense increased by $5.6 million for the three months ended September 30, 2023, compared to the same prior period. The increase was primarily driven by the debt extinguishment and other financing losses and costs incurred related to the Financing Transaction totaling $13.7 million offset by the recognition of decreases in the fair value of the earnout liability of $3.9 million, our Convertible Notes of $3.7 million, and the warrant liability of $0.6 million.

Comparison of the nine months ended September 30, 2023 and 2022