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HARMONY BIOSCIENCES HOLDINGS, INC.

To Be Held at 1:00 p.m. Eastern Time on May 29, 2024 via online webcast at www.virtualshareholdermeeting.com/HRMY2024.

Dear Stockholders of Harmony Biosciences Holdings, Inc.:

The 2024 annual meeting of stockholders (the “Annual Meeting”) of Harmony Biosciences Holdings, Inc., a Delaware corporation (“Harmony”), will be held virtually on May 29, 2024 at 1:00 p.m. Eastern Time. The Annual Meeting will be a virtual meeting of stockholders, which will be conducted via live audio webcast at www.virtualshareholdermeeting.com/HRMY2024. We believe that a virtual meeting provides expanded access, improved communication and cost savings for our stockholders and Harmony. Stockholders will be able to attend and listen to the Annual Meeting live, submit questions and vote their shares electronically at the Annual Meeting from virtually any location around the world. In order to attend and vote at the Annual Meeting, please follow the instructions in “Questions and Answers About the Proxy Materials and Our Annual Meeting: What do I need to do to attend the Annual Meeting virtually?” on page 3.

We are holding the Annual Meeting for the following purposes, as more fully described in the accompanying proxy statement:

Our board of directors has fixed the close of business on April 1, 2024 as the record date (the “Record Date”) for the Annual Meeting. Stockholders of record as of the Record Date are entitled to notice of and to vote at the Annual Meeting. Further information regarding voting rights and the matters to be voted upon is presented in the accompanying proxy statement.

In seeking to reduce costs, we are primarily furnishing proxy materials to our stockholders electronically as permitted by the U.S. Securities and Exchange Commission. Unless an election has been affirmatively made to receive printed paper copies of the materials by mail, stockholders will receive a Notice of Internet Availability of Proxy Materials (the “Notice”) with instructions for accessing the proxy materials free of charge over the Internet. On or about April 11, 2024, we expect to mail the Notice to our stockholders of record as of the Record Date.

IMPORTANT NOTICE REGARDING THE AVAILABILITY OF PROXY MATERIALS FOR THE ANNUAL MEETING OF STOCKHOLDERS TO BE HELD ON MAY 29, 2024:

The proxy statement for the Annual Meeting and the Annual Report on Form 10-K for the fiscal year ended December 31, 2023 are available free of charge at https://www.proxyvote.com. You will be asked to enter the 16-digit control number located on your proxy card.

YOUR VOTE IS IMPORTANT. Whether or not you plan to attend the Annual Meeting, we urge you to submit your vote in advance via the Internet, telephone or mail. Please note, however, that if your shares are held of record by a broker, bank or other nominee and you wish to vote during the meeting, you must follow the instructions from your broker, bank or other nominee.

We appreciate your continued support of Harmony.

HARMONY BIOSCIENCES HOLDINGS, INC.

 

PROXY STATEMENT

FOR THE 2024 ANNUAL MEETING OF STOCKHOLDERS

To Be Held at 1:00 p.m. Eastern Time on May 29, 2024

This proxy statement and the enclosed form of proxy are furnished in connection with the solicitation of proxies by our board of directors for use at the 2024 annual meeting of stockholders of Harmony Biosciences Holdings, Inc., a Delaware corporation (“Harmony” or the “Company”), and any postponements, adjournments or continuations thereof (the “Annual Meeting”). The Annual Meeting will be held on May 29, 2024 at 1:00 p.m. Eastern Time.

The Annual Meeting will be a virtual meeting of stockholders, which will be conducted via live audio webcast. You will be able to virtually attend and listen to the Annual Meeting live, submit questions and vote your shares electronically at the Annual Meeting. In order to virtually attend and vote at the Annual Meeting, please follow the instructions in the section titled “Questions and Answers About the Proxy Materials and Our Annual Meeting: What do I need to do to attend the Annual Meeting virtually?” on page 3.

The Notice containing instructions on how to access this proxy statement and our annual report is first being mailed on or about April 11, 2024 to all stockholders entitled to vote at the Annual Meeting.

IMPORTANT NOTICE REGARDING THE AVAILABILITY OF PROXY MATERIALS FOR THE ANNUAL MEETING OF STOCKHOLDERS TO BE HELD ON May 29, 2024:

The proxy statement for the Annual Meeting and the Annual Report on Form 10-K for the fiscal year ended December 31, 2023 are available free of charge at https://www.proxyvote.com. You will be asked to enter the 16-digit control number located on your proxy card.

YOUR VOTE IS IMPORTANT. Whether or not you plan to attend the Annual Meeting, we urge you to submit your vote in advance via the Internet, telephone or mail. Please note, however, that if your shares are held of record by a broker, bank or other nominee and you wish to vote during the meeting, you must follow the instructions from your broker, bank or other nominee.

The information provided in the “question and answer” format below is for your convenience only and is merely a summary of the information contained in this proxy statement. You are encouraged to read this entire proxy statement carefully. Information contained on, or that can be accessed through, our website is not intended to be incorporated by reference into this proxy statement and references to our website address in this proxy statement are inactive textual references only.

Our Annual Meeting will be conducted via live audio webcast and online stockholder tools. We are excited to be using the virtual format in order to facilitate stockholder attendance and participation by enabling stockholders to participate fully, and equally, from virtually any location around the world, at no cost. However, you will bear any costs associated with your Internet access, such as usage charges from Internet access providers and telephone companies. We believe this is the right choice for a company with a global reach and worldwide stockholder base. We also believe a virtual Annual Meeting allows more stockholders (regardless of physical location, size or resources) to have direct access to information in real time, while saving the company and our stockholders time and money. In addition to reducing the environmental impact of our Annual Meeting, we also believe that the online tools we have selected will increase stockholder communication and overall participation. We remain very conscious to any concerns that virtual meetings may diminish stockholder voice or reduce accountability. Accordingly, we have designed our virtual format to enhance, rather than constrain, stockholder access, participation and communication. For example, the virtual format allows stockholders to communicate with us in

advance of, and during, the Annual Meeting so they can ask questions of our board of directors and management. We plan to answer questions as they come in and address those asked in advance as time permits that comply with the meeting rules of conduct. However, we reserve the right to edit profanity or other inappropriate language, or to exclude questions that are not pertinent to meeting matters or that are otherwise inappropriate. If we receive substantially similar questions, we intend to group such questions together and provide a single response to avoid repetition. A replay and a written transcript of the Annual Meeting will be made publicly available on our investor relations site.

What matters am I voting on and how does the board of directors recommend that I vote?

Other than the three items of business described in this proxy statement, we are not aware of any other business to be acted upon at the Annual Meeting. You may be asked to consider any other business that properly comes before the Annual Meeting.

Holders of our common stock as of the close of business on April 1, 2024, the date our board of directors has set as the record date (the “Record Date”), may vote at the Annual Meeting. As of the Record Date, there were 56,791,214 shares of our common stock outstanding. Each share of common stock is entitled to one vote on each proposal. We do not have cumulative voting rights for the election of directors.

If shares of our common stock are registered directly in your name with our transfer agent or with our equity award management system (Shareworks), then you are considered to be the stockholder of record with respect to those shares, and the Notice was provided to you directly by us. As the stockholder of record, you have the right to grant your voting proxy and indicate your voting choices directly to the individuals listed on the proxy card or to vote virtually at, the Annual Meeting. Throughout this proxy statement, we refer to these registered stockholders as “stockholders of record.”

If shares of our common stock are held on your behalf in a brokerage account or by a bank or other nominee, you are considered to be the beneficial owner of shares that are held in “street name,” and the Notice was forwarded to you by your broker, bank or other nominee, who is considered the stockholder of record with respect to those shares. As the beneficial owner, you have the right to direct your broker, bank or other nominee as to how to vote your shares in the manner provided in the voting instructions you receive from your broker, bank or other nominee. If you request a printed copy of our proxy materials by mail, your broker, bank or other nominee will provide a voting instruction form for you to use. Street name stockholders are also invited to virtually attend the Annual Meeting. However, because a street name stockholder is not the stockholder of record, you may not vote your shares of our common stock virtually at the Annual Meeting unless you follow your broker, bank or other nominee’s procedures for obtaining a legal proxy. Throughout this proxy statement, we refer to stockholders who hold their shares through a broker, bank or other nominee as “street name stockholders.”

Both stockholders of record and street name stockholders will be able to virtually attend the Annual Meeting via live audio webcast, submit questions during the meeting and vote their shares electronically at the Annual Meeting. For more information on how to virtually attend the Annual Meeting, please see the section titled “Questions and Answers About the Proxy Materials and Our Annual Meeting: What do I need to do to attend the Annual Meeting virtually?” on page 3.

Voting results will be tabulated and certified by the inspector of election appointed for the Annual Meeting.

A quorum is the minimum number of shares required to be present at the Annual Meeting to properly hold an annual meeting and conduct business under our Bylaws and Delaware law. The presence, including by proxy, of the holders of a majority of all issued and outstanding shares of our common stock entitled to vote at the Annual Meeting will constitute a quorum at the Annual Meeting. Abstentions, against votes and broker non-votes are counted as shares present and entitled to vote for purposes of determining a quorum.

If you are a stockholder of record, there are four ways to vote:

If you are a street name stockholder, you will receive voting instructions from your broker, bank or other nominee. You must follow the voting instructions provided by your broker, bank or other nominee in order to direct your broker, bank or other nominee on how to vote your shares. As discussed above, if you are a street name stockholder, you may not vote your shares live at the virtual Annual Meeting unless you obtain a legal proxy from your broker, bank or other nominee.

Both stockholders of record and street name stockholders with a legal proxy will be able to attend the Annual Meeting via live audio webcast, submit their questions during the meeting and vote their shares electronically at the Annual Meeting by visiting www.virtualshareholdermeeting.com/HRMY2024. To participate in the Annual Meeting, you will need the control number included on your Notice or proxy card.

The Annual Meeting live audio webcast will begin promptly at 1:00 p.m. Eastern Time on Thursday, May 29, 2024. We encourage you to access the meeting prior to the start time. Online check-in will begin at 12:45 p.m. Eastern Time, and you should allow ample time for the check-in procedures.

If you encounter any difficulties accessing the virtual meeting during the check-in or meeting time, please call the technical support number that will be posted on the login page. Please be sure to check in by 12:45 p.m. Eastern Time on May 29, 2024, the day of the Annual Meeting, so we may address any technical difficulties before the Annual Meeting live audio webcast begins.

Yes. If you are a stockholder of record, you can change your vote or revoke your proxy any time before the Annual Meeting by:

If you are a street name stockholder, your broker, bank or other nominee can provide you with instructions on how to change your vote.

Proxies are solicited by and on behalf of our board of directors. Dr. Jeffrey Dayno (our President and Chief Executive Officer) and Christian Ulrich (our General Counsel) have been designated as proxy holders by our board of directors. When proxies are properly dated, executed and returned, the shares represented by such proxies will be voted at the Annual Meeting in accordance with the instructions of the stockholder. If no specific instructions are given, however, the shares will be voted in accordance with the recommendations of our board of directors as described above. If any matters not described in this proxy statement are properly presented at the Annual Meeting, the proxy holders will use their own judgment to determine how to vote the shares. If the Annual Meeting is adjourned, the proxy holders can vote the shares on the new Annual Meeting date as well, unless you have properly revoked your proxy instructions, as described above.

In accordance with the rules of the Securities and Exchange Commission (“SEC”), we have elected to furnish our proxy materials, including this proxy statement and our annual report, primarily via the Internet. The Notice containing instructions on how to access our proxy materials is first being mailed on or about April 11, 2024 to all stockholders entitled to vote at the Annual Meeting.

Stockholders may request to receive all future proxy materials in printed form by mail or electronically by email by following the instructions contained in the Notice. We encourage stockholders to take advantage of the availability of our proxy materials on the Internet to help reduce the environmental impact and the costs of our annual meetings of stockholders.

Our board of directors is soliciting proxies for use at the Annual Meeting. All expenses associated with this solicitation will be borne by us. We will reimburse brokers, banks and other nominees for reasonable expenses that they incur in sending our proxy materials to you if a broker, bank or other nominee holds shares of our common stock on your behalf. In addition, our directors and employees may also solicit proxies in person, by telephone or by other means of communication. Our directors and employees will not be paid any additional compensation for soliciting proxies.

Brokerage firms and other intermediaries holding shares of our common stock in street name for their customers are generally required to vote such shares in the manner directed by their customers. In the absence of timely directions, your broker, bank or other nominee will have discretion to vote your shares on our sole “routine” matter: the proposal to ratify the appointment of Deloitte & Touche LLP as our independent registered public accounting firm for our fiscal year ending

December 31, 2024. Your broker, bank or other nominee will not have discretion to vote on the election of directors, which is a “non-routine” matter, absent direction from you. If the broker, bank or other nominee that holds your shares in “street name” returns a proxy card without voting on a non-routine proposal because it did not receive voting instructions from you on that proposal, this is referred to as a “broker non-vote.” “Broker non-votes” are considered in determining whether a quorum exists at the Annual Meeting. The effect of broker non-votes on the outcome of each proposal to be voted on at the Annual Meeting is explained above.

We will announce preliminary voting results at the Annual Meeting. We will also disclose voting results on a Current Report on Form 8-K that we will file with the SEC within four business days after the Annual Meeting. If final voting results are not available to us in time to file a Current Report on Form 8-K within four business days after the Annual Meeting, we will file a Current Report on Form 8-K to publish preliminary results and will provide the final results in an amendment to the Current Report on Form 8-K as soon as they become available.

Stockholders may present proper proposals for inclusion in our proxy statement and for consideration at next year’s annual meeting of stockholders by submitting their proposals in writing to our Secretary in a timely manner. For a stockholder proposal to be considered for inclusion in our proxy statement for our 2025 annual meeting of stockholders, our Secretary must receive the written proposal at our principal executive offices not later than December 12, 2024. In addition, stockholder proposals must comply with the requirements of Rule 14a-8 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), regarding the inclusion of stockholder proposals in company-sponsored proxy materials. Stockholder proposals should be addressed to:

Harmony Biosciences Holdings, Inc.

Attention: Secretary

630 W. Germantown Pike, Suite 215

Plymouth Meeting, Pennsylvania 19462

If a stockholder who has notified us of his, her or its intention to present a proposal at an annual meeting does not appear to present his, her or its proposal at such annual meeting, such nomination shall be disregarded and we are not required to present the proposal for a vote at such annual meeting.

Our Bylaws also establish an advance notice procedure for stockholders who wish to present a proposal before an annual meeting of stockholders but do not intend for the proposal to be included in our proxy statement. Our Bylaws provide that for business to be properly brought before an annual meeting by a stockholder, the business (i) must constitute a proper matter for stockholder action and (ii) must be properly brought before the meeting by a stockholder who was a stockholder of record at the time of the notice given and at the time of the annual meeting and who is entitled to vote at the meeting. The stockholder must provide timely written notice to our Secretary, which notice must contain the information specified in our Bylaws. To be timely for our 2025 annual meeting of stockholders, our Secretary must receive the written notice at our principal executive offices:

In the event that we hold our 2025 annual meeting of stockholders more than 30 days before or more than 60 days after the one-year anniversary of the Annual Meeting, notice of a stockholder proposal that is not intended to be included in our proxy statement must be received no later than:

If a stockholder who has notified us of his, her or its intention to present a proposal at an annual meeting does not appear to present his, her or its proposal at such annual meeting, such nomination shall be disregarded and we are not required to present the proposal for a vote at such annual meeting.

Our Bylaws permit stockholders to nominate directors for election at an annual meeting of stockholders. To nominate a director, the stockholder must provide the information required by our Bylaws. The stockholder must also give timely notice to our Secretary in accordance with our Bylaws, which, in general, require that the notice be received by our Secretary within the time periods described above under “Stockholder Proposals” for stockholder proposals that are not intended to be included in a proxy statement. For additional information regarding stockholder recommendations for director candidates, please see “Board of Directors and Corporate Governance: Stockholder Recommendations and Nominations to the Board of Directors.” You are advised to review our Bylaws, which contain additional requirements about advance notice of stockholder proposals and director nominations.

In addition to satisfying the foregoing requirements under the company’s bylaws, stockholders who intend to solicit proxies in support of director nominees other than the company’s nominees must also comply with the additional requirements of Rule 14a-19 under the Exchange Act.

A copy of our Bylaws is available via the SEC’s website at https://www.sec.gov. You may also contact our Secretary at the address set forth above for a copy of the relevant Bylaw provisions regarding the requirements for making stockholder proposals and nominating director candidates.

Our business affairs are managed under the direction of our board of directors, which is currently composed of ten members. All of our directors, other than Jeffrey Dayno, our President and Chief Executive Officer, and Jeffrey Aronin, our Chairman, are independent within the meaning of the listing standards of the Nasdaq Global Market (“Nasdaq”). Our board of directors is divided into three classes of directors each serving a staggered three-year term. At each annual meeting of stockholders, a class of directors is elected for a three-year term to succeed the class whose term is then expiring.

The following table sets forth the names, ages as of April 1, 2024, and certain other information for each of the members of our board of directors with terms expiring at the Annual Meeting (who are also nominees for election as a director at the Annual Meeting) and for each of the continuing members of our board of directors. Full biographical information is below.

The nominating and corporate governance committee, in recommending director candidates for election to the board of directors, and the board of directors, in nominating director candidates, considers candidates who have a high level of personal and professional integrity, strong ethics and values and the ability to make mature business judgments.

In evaluating director candidates, the nominating and corporate governance committee and the board of directors may also consider the following criteria as well as any other factor that they deem to be relevant:

In addition, the board of directors will consider whether there are potential conflicts of interest with the candidate’s other personal and professional pursuits. The board of directors monitors the mix of specific experience, qualifications and skills of its directors in order to assure that it, as a whole, has the necessary tools to perform its oversight function effectively in light of the Company’s business and structure.

We believe that the structure of our board of directors and its committees provides strong overall management of our company. In accordance with our Corporate Governance Guidelines, a copy of which is posted in the Corporate Governance section of our website at https://ir.harmonybiosciences.com/corporate-governance/governance-highlights, our board of directors does not currently have a policy as to whether the offices of the Chair of the Board and Chief Executive Officer should be separate. Our board of directors, in consultation with our nominating and corporate governance committee, believes that it should have the flexibility to make this determination as circumstances require, and in a manner that it believes is best to provide appropriate leadership. Pursuant to our Corporate Governance Guidelines, from time to time, our board of directors may determine that the board should have a lead director who may perform such additional duties as our board of directors may otherwise determine and delegate. Our nominating and corporate governance committee will periodically consider our board’s leadership structure and make recommendations to change the structure as it deems appropriate.

Currently, Mr. Aronin serves as Chair of the Board and we do not have a lead independent director. As a founder of our company, Mr. Aronin is best positioned to identify strategic priorities, lead critical discussion and execute our business plans. The board of directors believes that this overall structure meets the current corporate governance needs and oversight responsibilities of the board of directors. Moreover, each of the directors, other than Dr. Dayno and Mr. Aronin, is independent. Dr. Dayno and Mr. Aronin do not serve on any committees of the board of directors. The board of directors believes that the independent directors provide effective oversight of management.

We have an active and engaged board of directors that is committed to fulfilling its fiduciary duty to act in good faith in the best interests of our company and all of our stockholders. During our fiscal year ended December 31, 2023, our board of directors held five meetings (including regularly scheduled and special meetings). During our fiscal year ended December 31, 2023, each director attended at least 75% of the (i) total number of meetings of our board of directors held during the period for which they have been a director and (ii) the total number of meetings held by all committees of our board of directors on which they served during the periods that they served, except for Mr. Nielsen due to scheduling conflicts.

Under our Corporate Governance Guidelines, a director is expected to spend the time and effort necessary to properly discharge their responsibilities. Accordingly, a director is expected to regularly prepare for and attend meetings of the board and all committees on which the director sits, as well as the annual meeting of stockholders. All of the then-incumbent directors attended our annual meeting of stockholders held in 2023. A director who is unable to attend a

meeting of the board or a committee is expected to notify the Chair of the board or the chair of the appropriate committee in advance of such meeting, and, whenever possible, participate in such meeting via teleconference in the case of an in-person meeting.

In connection with our initial public offering (“IPO”) in August 2020, our board of directors established an audit committee, a compensation committee and a nominating and corporate governance committee. The composition and responsibilities of each of the committees of our board of directors is described below. Members will serve on these committees until their resignation or until as otherwise determined by our board of directors.

Our audit committee consists of Messrs. Graf, Nielsen and Sender and Dr. Wicki, each of whom meets the requirements for independence under the listing standards of Nasdaq and SEC rules and regulations. Our board of directors has also affirmatively determined that Messrs. Graf, Nielsen and Sender and Dr. Wicki is independent within the meaning of applicable SEC rules and the listing standards of Nasdaq applicable to audit committee members. Each member of our committee meets the financial literacy requirements under Nasdaq listing standards. Mr. Sender is the Chair of our audit committee and an “audit committee financial expert” as that term is defined under the SEC rules implementing Section 407 of the Sarbanes-Oxley Act. Our audit committee is responsible for, among other things:

The audit committee operates under a written charter, which satisfies the applicable rules of the SEC and the listing standards of Nasdaq and is available on our website at https://ir.harmonybiosciences.com/corporate-governance/governance-highlights.

The Audit Committee met five times in 2023.

Our compensation committee consists of Messrs. Gracias, Sender and Anastasiou and Dr. Wicki, each of whom meets the requirements for independence under the listing standards of Nasdaq and applicable SEC rules and regulations. In addition, our board has determined that Messrs. Gracias, Sender and Anastasiou and Dr. Wicki are also “non-employee directors” as defined pursuant to Rule 16b-3 of the Exchange Act. Mr. Gracias is the Chair of our compensation committee. Our compensation committee is responsible for, among other things:

The compensation committee operates under a written charter, which satisfies the applicable rules of the SEC and the listing standards of Nasdaq and is available on our website at https://ir.harmonybiosciences.com/corporate-governance/governance-highlights.

The Compensation Committee met six times in 2023.

Our nominating and corporate governance committee consists of Messrs. Nielsen and Sabater, and Ms. Szyper, each of whom meets the requirements for independence under the listing standards of Nasdaq and applicable SEC rules and regulations. Mr. Sabater is the Chair of our nominating and corporate governance committee. The nominating and corporate governance committee is responsible for, among other things:

The nominating and corporate governance committee operates under a written charter, which satisfies the applicable rules of the SEC and the listing standards of Nasdaq and is available on our website at https://ir.harmonybiosciences.com/corporate-governance/governance-highlights.

The Nominating and Corporate Governance Committee met four times in 2023.

The table below provides additional diversity information regarding our board. Each of the categories listed in the below table has the meaning as it is used in Nasdaq Listing Rule 5605(f).

Our board of directors and each of its committees will conduct periodic self-evaluations to determine whether they are functioning effectively and whether any changes are necessary to improve their performance. The nominating and corporate governance committee is responsible for overseeing such periodic self-evaluations.

None of our executive officers serves as a member of the board of directors or compensation committee (or other committee performing equivalent functions) of any entity that has one or more executive officers serving on our board of directors or compensation committee.

To be considered for inclusion at the Annual Meeting, stockholder proposals must have been submitted in writing by on a timely basis in accordance with our Bylaws. Additionally, any stockholder who intended to submit a proposal regarding a director nomination or who intended to submit a proposal regarding any other matter of business for consideration at the Annual Meeting must have also delivered notice of any such nomination or proposal (including any additional information specified in the Bylaws) to the Company on a timely basis in accordance with our Bylaws. No such recommendations or nominations were received from our stockholders for consideration at the Annual Meeting.

For annual or special meetings that occur subsequent to our first annual meeting of stockholders, our Bylaws provide that stockholders seeking to nominate candidates for election as directors at any such meeting of stockholders must provide timely notice thereof in writing. To provide timely notice of a nomination at an annual meeting, a stockholder’s notice must generally be received in writing by the Secretary at our principal executive offices with such notice being served not less than 90 nor more than 120 days before the anniversary of the preceding year’s annual meeting. To be considered timely notice of a nomination at a special meeting, a stockholder’s notice must generally be received not more than 120 days prior to the special meeting nor later than the close of business on the later of (i) the 90th day prior to the special meeting and (ii) the 10th day following the day on which public announcement of the date of the special meeting of stockholders is first made.

Although our Bylaws do not give our board of directors the power to approve or disapprove stockholder nominations of candidates to be elected at an annual meeting (although our board of directors does have the power to determine whether any such nomination has been made in accordance with our Bylaws), our Bylaws may have the effect of precluding the conduct of certain business at a meeting if the proper procedures are not followed or may discourage or deter a potential acquirer from conducting a solicitation of proxies to elect its own slate of directors or otherwise attempting to obtain control of the company.

Eligible stockholders wishing to recommend a candidate for nomination should contact our Secretary in writing at Harmony Biosciences Holdings, Inc., 630 W. Germantown Pike, Suite 215, Plymouth Meeting, Pennsylvania 19462. Such recommendations must include all of the information required by our Bylaws. Our nominating and corporate governance committee has discretion to decide which individuals to recommend for nomination as directors. For more information, see the section above titled “Questions and Answers About the Proxy Materials and Our Annual Meeting: What is the deadline to propose actions for consideration at next year’s annual meeting of stockholders or to nominate individuals to serve as directors?” on page 5.

Our board of directors has adopted an Insider Trading Compliance Policy, which applies to all of our directors, officers and employees, and certain consultants specified by management. The policy prohibits our directors, officers, employees and specified consultants from engaging in hedging or monetization transactions, such as zero-cost collars and forward sale contracts, or otherwise engaging in transactions that hedge or offset, or are designed to hedge or offset, any decrease in the market value of the our equity securities, or that may cause an officer, director, employee or specified consultant to no longer have the same objectives as our other stockholders.

Interested parties wishing to communicate with our board of directors or with an individual member or members of our board of directors may do so by writing to our board of directors or to the particular member or members of our board of directors, as applicable, and mailing the correspondence to our Secretary at Harmony Biosciences Holdings, Inc., 630 W. Germantown Pike, Suite 215, Plymouth Meeting, Pennsylvania 19462.

Each communication should set forth (i) the name and address of the stockholder, as it appears in our records, and if the shares of our common stock are held by a nominee, the name and address of the beneficial owner of such shares, and (ii) the number of shares of our common stock that are owned of record by the record holder and beneficially by the beneficial owner.

Our Secretary, in consultation with appropriate members of our board of directors as necessary, will review all incoming communications and, if appropriate, such communications will be forwarded to the appropriate member or members of our board of directors, or if none is specified, to the Chair of our board of directors.

We regularly monitor developments and trends in the area of corporate governance and review our processes and procedures in light of such developments. As part of those efforts, we review federal and state laws affecting corporate governance, as well as rules adopted by the SEC and Nasdaq and we consider industry best practices for corporate governance. We believe that we have in place corporate governance procedures and practices that are designed to enhance our stockholders’ interests.

Our board of directors has adopted our Corporate Governance Guidelines that address items such as:

In addition, our board of directors has adopted our Code of Ethics and Conduct Policy which applies to all of our employees, officers and directors, including our Chief Executive Officer, Chief Financial Officer, and other executive and senior financial officers, that addresses items such as:

The full text of our Corporate Governance Guidelines and our Code of Ethics and Conduct Policy is posted in the Corporate Governance section of our website at https://ir.harmonybiosciences.com/corporate-governance/governance-highlights. We will post any amendments to our Corporate Governance Guidelines, Code of Ethics and Conduct Policy and any waivers of our Code of Ethics and Conduct Policy for directors and executive officers on the same website.

Risk is inherent with every business, and we face a number of risks, including strategic, financial, business and operational, competitive, legal and compliance, cybersecurity, privacy, platform and product innovation and reputational. We have designed and implemented processes to manage such risks. Although management is responsible for the day-to-day risks we face, one of the key functions of our board of directors is to oversee our risk management process. Our board of directors focuses on our general risk management strategy, the most significant risks facing us and oversees the implementation of risk mitigation strategies by management. Our board of directors is also apprised of particular risk management matters in connection with its general oversight and approval of corporate matters and significant transactions. The committees of our board of directors oversee and review risks that are inherent in their respective areas of oversight. The board of directors periodically receives reports by each committee chair regarding the committee’s considerations and actions. The board of director’s allocation of risk oversight responsibility may change from time to time based on the evolving needs of the Company.

Our audit committee is primarily responsible for reviewing our major financial risk exposures, our internal controls over financial reporting, our disclosure controls and procedures, related party transactions and legal and regulatory compliance, and, among other things, discusses risk assessment and risk management matters with management and our independent auditors. Our audit committee also reviews matters relating to cybersecurity and other information technology risks, controls and procedures, including those related to data privacy and network security, and any specific cybersecurity issues that could affect the adequacy of the Company’s internal controls.

Our compensation committee is primarily responsible for reviewing our risks and exposures associated with executive compensation programs and arrangements, including overall incentive and equity plans.

Our nominating and corporate governance committee is primarily responsible for reviewing our risks and exposures associated with board membership, structure and function, corporate governance and overall board effectiveness.

Our board of directors (or a committee delegated by our board of directors) will work on a periodic basis with our Chief Executive Officer to evaluate the Company’s succession plans for our Chief Executive Officer to ensure adequate succession plans are in place and periodically review the performance of our Chief Executive Officer.

Our board of directors is currently composed of ten members. In accordance with our amended and restated certificate of incorporation, our board of directors is divided into three staggered classes of directors. Three Class I directors have been nominated to be elected at the Annual Meeting for a three-year term to succeed the Class I directors whose term is then expiring. Each director’s term continues until the election and qualification of their successor, or such director’s earlier death, resignation, disqualification or removal.

Our nominating and corporate governance committee has recommended, and our board of directors has approved Mr. Aronin, Mr. Graf and Dr. Dayno as nominees for election as Class I directors at the Annual Meeting. If elected, Mr. Aronin, Mr. Graf and Dr. Dayno will serve as Class I directors until our 2027 annual meeting of stockholders and until their successors are duly elected and qualified, or until their earlier death, resignation, disqualification or removal. Each of the nominees is currently a director of our company and has agreed to serve if elected. For information concerning the nominees, please see “Board of Directors and Corporate Governance.”

If you are a stockholder of record and you sign your proxy card or vote by telephone or over the Internet but do not give instructions with respect to the voting of directors, your shares will be voted “FOR” the election of Mr. Aronin, Mr. Graf and Dr. Dayno. We expect that each of Mr. Aronin, Mr. Graf and Dr. Dayno will accept such nomination; however, in the event that a director nominee is unable or declines to serve as a director at the time of the Annual Meeting, the proxies will be voted for any nominee designated by our board of directors to fill such vacancy. If you are a street name stockholder and you do not give voting instructions to your broker, bank or other nominee, your broker, bank or other nominee will not vote your shares on this matter.

Our Bylaws provide for plurality voting for the election of directors. “Plurality” means that the three individuals who receive the largest number of votes cast “FOR” by the stockholders entitled to vote are elected as directors. Abstentions will have no effect on the outcome of this proposal. Broker non-votes will have no effect on the outcome of this proposal.

Full details of our plurality voting policy for nominees are set forth in our Bylaws, which are available via the SEC’s website at https://www.sec.gov.

 

THE BOARD OF DIRECTORS RECOMMENDS

A VOTE “FOR” EACH OF THE NOMINEES NAMED ABOVE.

Our audit committee has appointed Deloitte & Touche LLP (“Deloitte”) as our independent registered public accounting firm, to audit our consolidated financial statements for our fiscal year ending December 31, 2024. Deloitte has served as our auditor since 2017.

At the Annual Meeting, our stockholders are being asked to ratify the appointment of Deloitte as our independent registered public accounting firm for our fiscal year ending December 31, 2024. Our audit committee is submitting the appointment of Deloitte to our stockholders because we value our stockholders’ views on our independent registered public accounting firm and as a matter of good corporate governance. Notwithstanding the appointment of Deloitte and even if our stockholders ratify the appointment, our audit committee, in its discretion, may appoint another independent registered public accounting firm at any time during our fiscal year if our audit committee believes that such a change would be in the best interests of our company and our stockholders. Representatives of Deloitte will be present at the Annual Meeting, and they will have an opportunity to make a statement and will be available to respond to appropriate questions from our stockholders.

If our stockholders do not ratify the appointment of Deloitte, our board of directors may reconsider the appointment.

The following table presents fees for professional audit services and other services rendered to our company by Deloitte for our fiscal years ended December 31, 2023 and 2022.

In our fiscal year ended December 31, 2023, there were no other professional services provided by Deloitte, other than those listed above, that would have required our audit committee to consider their compatibility with maintaining the independence of Deloitte.

Our audit committee is responsible for appointing, setting compensation for, and overseeing the work of our independent registered public accounting firm. In addition, it has established a policy concerning the pre-approval of services performed by our independent registered public accounting firm. Each proposed engagement not specifically identified by the SEC as impairing independence is evaluated for independence implications prior to our entering into a contract with the independent registered public accounting firm for such services. All services provided by Deloitte for our fiscal years ended December 31, 2023 and 2022 were pre-approved by our board of directors in accordance with this policy.

The ratification of the appointment of Deloitte as our independent registered public accounting firm requires more votes “FOR” than “AGAINST” the proposal. Abstentions will have no effect on the outcome of this proposal. We do not anticipate broker non-votes on this proposal.

 

THE BOARD OF DIRECTORS RECOMMENDS A VOTE “FOR”

THE RATIFICATION OF THE APPOINTMENT OF DELOITTE & TOUCHE LLP.

The audit committee’s general role is to assist our board of directors in monitoring our financial reporting process and related matters. The audit committee operates under a written charter approved by Harmony’s board of directors, which is available on Harmony’s website at https://ir.harmonybiosciences.com/corporate-governance/governance-highlights and contains its specific responsibilities. The composition of the audit committee, the attributes of its members and the responsibilities of the audit committee, as reflected in its charter, are intended to be in accordance with the applicable requirements for Nasdaq and the SEC rules. The audit committee will review and assess the adequacy of its charter and the audit committee’s performance on a periodic basis.

With respect to Harmony’s financial reporting process, Harmony’s management is responsible for (i) establishing and maintaining internal controls and (ii) preparing Harmony’s consolidated financial statements. Harmony’s independent registered public accounting firm, Deloitte, is responsible for performing an independent audit of Harmony’s consolidated financial statements in accordance with auditing standards promulgated by the PCAOB, and expressing opinions on the conformity of the financial statements with accounting principles generally accepted in the United States. It is the responsibility of the audit committee to oversee these activities. It is not the responsibility of the audit committee to prepare Harmony’s financial statements. Those are fundamental responsibilities of management. In the performance of its oversight function, the audit committee has:

Based on the audit committee’s review and discussions with management and Deloitte, the audit committee recommended to the board of directors that the audited financial statements be included in the Annual Report on Form 10-K for the fiscal year ended December 31, 2023 for filing with the SEC.

Respectfully submitted by the members of the audit committee of the board of directors:

Gary Sender (Chair)

R. Mark Graf

Jack Bech Nielsen

Andreas Wicki, Ph.D.

This report of the audit committee is required by the SEC and, in accordance with the SEC’s rules, will not be deemed to be part of or incorporated by reference by any general statement incorporating by reference this proxy statement into any filing under the Securities Act of 1933, as amended (the “Securities Act”), or under the Exchange Act, except to the extent that we specifically incorporate this information by reference, and will not otherwise be deemed “soliciting material” or “filed” under either the Securities Act or the Exchange Act.

The following table identifies certain information about our executive officers as of the date of this proxy statement. Our executive officers are appointed by, and serve at the discretion of, our board of directors. There are no family relationships among any of our directors or executive officers.

Jeffrey Dayno, M.D. Dr. Dayno has served as our President and Chief Executive Officer since April 2023. He previously served as our Interim President and Chief Executive Officer, from January 2023 to April 2023 and as our Chief Medical Officer from November 2017 to April 2023. Dr. Dayno also served as Chief Medical Officer of Eaglet Co., now known as Zyla Life Sciences, from July 2014 to October 2017. Prior to joining Eaglet Co., Dr. Dayno served as Vice President of Global Medical Affairs at ViroPharma, Inc., from August 2011 to January 2014, at which time it was acquired by Shire Pharmaceuticals. Since October 2022, Dr. Dayno has served on the board of directors of Emalex Biosciences, a public pharmaceutical company, and from March 2016 to May 2022, he served on the board of directors of Atrin Pharmaceuticals, LLC, a private biopharmaceutical company. Dr. Dayno completed his residency in neurology at Temple University Hospital then completed a fellowship in stroke and cerebrovascular diseases at Henry Ford Hospital in Detroit, Michigan, as part of a National Institutes of Health program grant in stroke. He has over 10 years of experience in clinical and academic medicine and was on the faculty at Jefferson Medical College. Dr. Dayno also has over 25 years of experience in the pharmaceutical industry in leadership roles in companies including Merck & Co., Inc., a public pharmaceutical company, and Cephalon Inc., a formerly public biopharmaceutical and biotechnology company, which was acquired by Teva. He has built and led teams toward multiple NDA approvals and supported Commercial teams in the launch of multiple innovative products in the market. He was one of the founding members and served as the Chairman of the Board of the Philadelphia Stroke Council, a non-profit organization dedicated to patient awareness and professional education to advance the efforts toward acute stroke treatment. Since March 2013, Dr. Dayno has been a member of the board of visitors of Temple University School of Medicine. Dr. Dayno received a B.A. in international studies from Trinity College and an M.D. from Temple University School of Medicine.

Sandip Kapadia. Mr. Kapadia has served as our Chief Financial Officer since March 2021. Mr. Kapadia has over 25 years of life sciences industry experience across multiple therapeutic areas and has provided strategic financial oversight and guidance to companies both in the United States and Europe. Most recently, Mr. Kapadia served as Chief Financial Officer at Intercept Pharmaceuticals, Inc., a biopharmaceutical company, from July 2016 to March 2021. Prior to joining Intercept, Mr. Kapadia served in various financial leadership capacities over 19 years at Novartis International AG and Novartis affiliates in the United States, Switzerland, Netherlands and the United Kingdom. He also serves on the board of directors of Molecular Partners AG, Passage Bio and Alentis Therapeutics. Mr. Kapadia received a Masters of Business Administration (MBA) from Rutgers Graduate School of Management and a Bachelor’s degree from Montclair State University and is also a US Certified Public Accountant.

Jeffrey Dierks. Mr. Dierks has served as our Chief Commercial Officer since July 2018. Prior to his role as Chief Commercial Officer, Mr. Dierks served as our Vice President of Marketing from October 2017 to July 2018. Prior to joining Harmony, Mr. Dierks served in senior marketing roles leading the U.S. Pain Care & Wakefulness portfolio from June 2014 to December 2016 and U.S. Migraine Marketing from December 2016 to October 2017 at Teva Pharmaceuticals. Before joining Teva, Mr. Dierks held commercial roles of increasing responsibility at several major pharmaceutical companies, including Janssen Pharmaceuticals Inc., Endo Pharmaceuticals and Wyeth Pharmaceuticals. In 2017, PM360 magazine honored Mr. Dierks as a transformational leader in the pharmaceutical industry and in 2010 with the Trailblazer Award. Mr. Dierks has over 20 years of commercial experience and has led brand teams across numerous therapeutic areas including central nervous system, sleep disorders, pain care and migraines, as well as rare diseases. Mr. Dierks received a B.A. in political science from Western Maryland College and an M.B.A. in marketing from Temple University’s Fox School of Business.

Andrew Serafin. Mr. Serafin has served as our Chief Strategy Officer since January 2021. Previously, Mr. Serafin served as our Chief Business Officer from December 2018 to January 2021 and as our Senior Vice President of Business Development and Corporate Strategy from September 2017 to December 2018. Previously, Mr. Serafin served as the Vice

President of Business Development at Marathon Pharmaceuticals, LLC, a private development-stage biopharmaceutical company, from August 2015 to May 2017. He also served as the Vice President of Business Development and General Counsel of AltaThera Pharmaceuticals, LLC, a private pharmaceutical company, from April 2015 to August 2015, and the Vice President of Deal Integration and Associate General Counsel of Lundbeck Inc., or Lundbeck, from July 2006 to March 2015. He also served as acting General Counsel of Lundbeck for six months during his time with the company. Mr. Serafin has over 20 years of experience in mergers and acquisitions and corporate legal counseling in the pharmaceutical, healthcare and technology sectors. He received a B.S. in finance from University of Illinois at Urbana-Champaign, a J.D. from Loyola University Chicago School of Law and an M.B.A. from Northwestern University Kellogg School of Management.

Kumar Budur, M.D., M.S. Dr. Budur has served as our Chief Medical Officer since May 2023. Previously, Dr. Budur was the Executive Medical Director at AbbVie Inc., a public biopharmaceuticals company, from August 2015 to February 2022. Prior to this, Dr. Kumar held positions of increasing responsibilities for six years at Takeda Pharmaceutical Company Limited, a global, research and development-driven pharmaceutical company. A nationally recognized expert in Research and Development, he has overseen programs ranging from late discovery, early clinical development to late clinical development, and post-marketing studies. He has experience in progressing small molecules, biologics, drug-device combination through various stages of Development. Dr. Budur was involved with four New Drug Applications (NDAs) and was the lead for the registration clinical trials, submission, and approval process of two NDAs. Dr. Budur has published over 45 original research papers in peer reviewed journals, edited four books, and chaired National and International seminars and symposiums. Dr. Budur was trained at Cambridge University in the UK, and Cleveland Clinic and completed his Residency in Psychiatry and Fellowships in Neurophysiology and Sleep Medicine. He is Board Certified in Psychiatry and Sleep Medicine and received a master's degree in clinical research from Case Western Reserve University.

The information contained in this Report of the Compensation Committee shall not be deemed incorporated by reference in any filing under the Securities Act or the Exchange Act, whether made before or after the date hereof and irrespective of any general incorporation language in any such filing (except to the extent that we specifically incorporate this information by reference) and shall not otherwise be deemed “soliciting material” or “filed” with the SEC or subject to Regulation 14A or 14C, or to the liabilities of Section 18 of the Exchange Act (except to the extent that we specifically incorporate this information by reference).

The Compensation Committee has reviewed and discussed with management the Compensation Discussion and Analysis and, based on such review and discussions, recommended to the Board that the Compensation Discussion and Analysis be included in this proxy statement.

In this Compensation Discussion and Analysis, we provide an overview and analysis of the compensation awarded to or earned by our named executive officers identified in the Summary Compensation Table below (each, an “NEO”) during fiscal year 2023, including the elements of our compensation program for NEOs, material compensation decisions made under that program for fiscal year 2023 and the material factors considered in making those decisions. Our NEOs and their positions for the year ended December 31, 2023 are:

Effective, January 20, 2023, Mr. Jacobs resigned as President and Chief Executive Officer of the Company, at which time Dr. Dayno was appointed as our Interim President and Chief Executive Officer. Dr. Dayno was appointed the President and Chief Executive Officer on April 24, 2023. Mr. Kapadia was appointed as our Chief Administrative Officer (and continuing as Chief Financial Officer) effective on September 30, 2023. In addition, in May 2023, Dr. Budur was promoted to Executive Vice President and Chief Medical Officer.

Following are some of our key 2023 operational and financial highlights of our performance:

The chart below summarizes the various elements of our executive compensation program and their purpose. Further detail on each of these compensation elements is provided in the sections that follow.

In addition, we approved one-time cash transition bonuses to the following NEOs for the following amounts: $300,000 for Dr. Dayno, $250,000 for Mr. Kapadia, $250,000 for Mr. Dierks and $125,000 for Mr. Serafin. We also approved a one-time cash performance bonus in the amount of $50,000 to Mr. Dierks.

We are committed to having strong governance standards with respect to our compensation programs, procedures and practices. Our key compensation practices include the following:

At the 2023 annual meeting of stockholders, our stockholders voted in a non-binding, advisory vote to approve the compensation of our NEOs (the “Say-on-Pay Vote”), with 97.6% of the shares cast voting for approval. At our 2022 annual meeting of stockholders, 58% of the shares cast voted in a non-binding advisory vote in favor of having a Say-On-Pay Vote once every three years. Consistent with the stated preference of a majority of our stockholders, our next advisory vote on our NEOs’ compensation will be held at our 2026 annual meeting of stockholders.

The key objectives of our executive compensation program are to attract, motivate, and reward leaders who create an inclusive and diverse environment and have the skills and experience necessary to successfully execute on our strategic plan to maximize stockholder value. Our executive compensation program is designed to:

We strive to provide a competitive total compensation opportunity to executives while balancing other important factors. Executives may be compensated above or below levels of compensation for similar positions found in the external market based on factors such as experience, performance, scope of position and the competitive demand for proven executive talent, as described further below under “—Determination of Executive Compensation.”

The Compensation Committee is responsible for establishing and overseeing our executive compensation programs and annually reviews and determines (or recommends to the board of directors for approval) the compensation to be provided to our NEOs, including with respect to our Chief Executive Officer.

In setting executive compensation, the Compensation Committee considers a number of factors, including the recommendations of our Chief Executive Officer (other than with respect to the Chief Executive Officer’s own compensation) and members of our human resources team, current and past total compensation, competitive market data, Company performance and each executive’s impact on performance, each executive’s relative role and scope of responsibility and potential, each executive’s individual performance and demonstrated leadership, and internal equity pay considerations. Our Chief Executive Officer’s recommendations are based on his evaluation of each other NEO’s individual performance and contributions, of which our Chief Executive Officer has direct knowledge.

The base salaries of our NEOs are an important part of their total compensation package, and are intended to reflect their respective positions, duties and responsibilities. Base salary is a visible and stable fixed component of our compensation program. Our Compensation Committee annually reviews and determines the base salaries of our executives.

In 2023, we approved merit-based base salary increases for 2023 of 6.5% for Mr. Kapadia, 6% for Mr. Dierks, 6.5% for Dr. Budur and 7% for Mr. Serafin. The Compensation Committee also approved an increase of $50,000 to Mr. Dierks’s annual base salary. These increases were intended to reflect the considerations set forth above under “Determination of Executive Compensation.”

In addition, in January 2023, our Compensation Committee increased Dr. Dayno’s annual base salary to $530,000 in connection with his appointment as our Interim President and CEO and, in April 2023, our Compensation Committee increased Dr. Dayno’s annual base salary to $650,000 in connection with his appointment as our President and CEO. Also, in May 2023, our Compensation Committee increased Dr. Budur’s annual base salary to $450,038 in connection with his promotion to EVP and Chief Medical Officer.

Our NEOs’ annual base salaries as of December 31, 2023 are as follows:

The actual 2023 base salaries paid to each of our NEOs is set forth in the column entitled “Salary” in the “Summary Compensation Table” below.

We consider annual cash incentive bonuses to be an important component of our total compensation program by providing incentives necessary to retain executive officers. The Company currently maintains an annual cash incentive bonus program in which certain eligible employees, including our NEOs, participate.

The target bonus opportunities were determined by our Compensation Committee by considering each NEO’s performance, role and responsibilities at our Company, and (other than with respect to Dr. Dayno) were not increased or changed from fiscal year 2022.

The NEOs’ target bonus opportunities under our 2023 annual bonus program were as follows:

Under the 2023 program, the cash incentive bonuses were earned based upon the achievement of pre-determined Company performance goals for 2023, including goals related to: (i) Net Product Revenue (as defined below) of WAKIX, (ii) clinical development programs, (iii) corporate transactions, (iv) financial health and (v) talent and culture. Each of these performance goals accounted for the following percentages of the participant’s bonus opportunity for 2023:

Under the 2023 bonus program, participants were eligible to receive a percentage of the participant’s target bonus opportunity, ranging up to 150%, based on the level at which each of the performance goals was achieved, as set forth in the following table:

In 2023, we achieved the “Exceptional” performance level for our Net Product Revenue (which was $582 million), the “Exceeded Expectations” performance level for our talent and culture related goals, the “Meets Expectations” performance level for each of our corporate transaction and financial health related goals, and the “Below Expectations” performance level for our clinical development goals. Based on the Compensation Committee’s subjective assessment of each NEO’s individual performance and contributions to the Company for 2023, the Compensation Committee decided to award our NEOs with an amount equal to the following percentages of their respective target bonus opportunities for 2023.

Mr. Jacobs is not included because his employment terminated in January 2023, and therefore he was not eligible to participate in the 2023 program.

The NEOs’ actual 2023 performance bonuses are set forth in the column entitled “Non-Equity Incentive Plan Compensation” in the “Summary Compensation Table” below.

On December 15, 2022, in light of Dr. Dayno’s contributions to the success of our Company, we entered into a letter agreement pursuant to which Dr. Dayno became eligible to receive a one-time cash retention bonus of $200,000. This retention bonus was paid to Dr. Dayno in January 2023. The retention bonus is subject to repayment in the event that Dr. Dayno’s employment is terminated by the Company for “cause” (as defined in the letter agreement) or by Dr. Dayno for any reason prior to December 15, 2024.

In January 2023, in order to ensure continuity of leadership, maintain stability and reward exceptional performance during the CEO transition described above, we approved a one-time cash transition bonus for each of Dr. Dayno and Messrs. Kapadia, Dierks and Serafin in the amount of $300,000 for Dr. Dayno, $250,000 for Messrs. Kapadia and Dierks and $125,000 for Mr. Serafin, to be paid upon the earlier of (i) June 30, 2024 and (ii) the closing of a change in control event,

subject to the NEO’s continued employment through such earlier date. In addition, in light of Mr. Dierks’ contributions to the commercial success of our Company, we approved a one-time cash performance bonus in the amount of $50,000 to Mr. Dierks. These bonuses were intended to reflect additional considerations set forth above under “Determination of Executive Compensation.”

In addition, in 2023, the Company paid to Dr. Budur $100,000 for the second installment of his $250,000 sign-on bonus pursuant to his offer letter with the Company. If Dr. Budur voluntarily resigns from employment within 12 months after receiving the installment payment, Dr. Budur will be obligated to repay the full amount of such installment to the Company on an after-tax basis.

We view equity-based compensation as a critical component of our balanced total compensation program. Equity-based compensation creates an ownership culture among our employees that provides an incentive to contribute to the continued growth and development of our business and aligns the interests of our executives with those of our stockholders. Our Compensation Committee believes it is essential to provide equity-based compensation to our executive officers in order to link the interests and risks of our executive officers with those of our stockholders, reinforcing our commitment to ensuring a strong linkage between company performance and pay.

In 2023, we made the following grants of options and/or RSUs to Dr. Dayno and Messrs. Dierks and Kapadia. The equity awards granted to Dr. Dayno and Mr. Kapadia were approved in connection with their promotions in 2023, and the equity award granted to Mr. Dierks was approved in light of his performance and contributions to the success of our Company.

Dr. Dayno’s stock option will vest and become exercisable as to 50% of the shares on May 25, 2025, and with respect to the remaining 50% in 24 equal monthly installments beginning on June 25, 2025, subject to his continued service. The RSU awards granted to Messrs. Kapadia and Dierks vest as to 40%, 30% and 30% of the RSUs on September 30 of 2024, 2025 and 2026, respectively, subject to the executive’s continued employment.

We maintain a 401(k) retirement savings plan for our employees, including our NEOs, who satisfy certain eligibility requirements. Our NEOs are eligible to participate in the 401(k) plan on the same terms as other full-time employees. The Internal Revenue Code allows eligible employees to defer a portion of their compensation, within prescribed limits, on a pre-tax basis through contributions to the 401(k) plan. In 2023, contributions made by participants in the 401(k) plan were matched up to a specified percentage of the employee contributions, and these matching contributions are fully vested at the time they are made. We believe that providing a vehicle for tax-deferred retirement savings though our 401(k) plan adds to the overall desirability of our executive compensation package and further incentivizes our employees, including our NEOs, in accordance with our compensation policies.

All of our full-time employees, including our NEOs, are eligible to participate in our health and welfare plans, including medical, dental and vision benefits, medical and dependent care flexible spending accounts, short-term and long-term disability insurance, and life insurance.

We believe the perquisites described above are necessary and appropriate to provide a competitive compensation package to our NEOs.

Other than as noted above, we do not currently provide perquisites to our NEOs, and we do not view perquisites or other personal benefits as a significant component of our executive compensation program. In the future, we may provide

additional perquisites or other personal benefits in limited circumstances, such as where we believe it is appropriate to assist an individual executive officer in the performance of the executive’s duties, to make our executive officers more efficient and effective, and for recruitment, motivation, or retention purposes.

In addition, we do not make gross-up payments to cover our NEOs’ personal income taxes that may pertain to any of the compensation or perquisites paid or provided by our Company.

We have entered into employment offer letters or employment agreements with certain of our NEOs, which provide certain of our NEOs with severance benefits and payments upon certain qualifying terminations of employment, including in connection with a “change in control” of the Company. In addition, in June 2020, our board of directors adopted the Harmony Biosciences, LLC Separation Plan (the “Separation Plan”), which provides for the payment of certain severance and other benefits to eligible employees, including certain of our NEOs, following qualifying terminations of employment in connection with a change in control of the Company. In 2023, each of Messrs. Dierks, Budur and Serafin participated in the Separation Plan.

We believe that these types of arrangements are necessary to attract and retain executive talent and are a customary component of executive compensation. In particular, these arrangements can enhance alignment with stockholders by encouraging management to pursue transactions that create value for stockholders irrespective of the potential for job loss or diminution of duties and can encourage retention through the conclusion of the transaction. The separation payments and benefits described above are designed to be competitive with market practices. A description of these arrangements, as well as information on the estimated payments and benefits that our NEOs would have been eligible to receive as of December 31, 2023, are set forth in the section titled, “—Potential Payments Upon Termination or Change in Control”.

In connection with Mr. Jacobs’ resignation in January 2023, we agreed to extend the exercise period of his vested stock options from his termination date until April 20, 2023, in exchange for his release of all claims against Harmony and its affiliates.

Insider Trading Compliance Policy. For information on our Insider Trading Compliance Policy, see the section above titled “—Anti-Hedging Policy.”

Section 409A. The Compensation Committee takes into account whether components of the compensation for our executive officers will be adversely impacted by the penalty tax imposed by Section 409A of the Internal Revenue Code, and aims to structure these components to be compliant with or exempt from Section 409A to avoid such potential adverse tax consequences.

“Golden Parachute” Payments. Sections 280G and 4999 of the Internal Revenue Code provide that certain executive officers and other service providers who are highly compensated or hold significant equity interests may be subject to an excise tax if they receive payments or benefits in connection with a change in control of the Company that exceeds certain prescribed limits, and that we, or a successor, may forfeit a tax deduction on the amounts subject to this additional tax. While the Compensation Committee may take the potential forfeiture of such tax deduction into account when making compensation decisions, it will award compensation that it determines to be consistent with the goals of our executive compensation program even if such compensation is not deductible by us. We currently do not provide any tax gross-ups to cover excise taxes under Section 4999 in connection with a change in control.

Accounting for Stock-Based Compensation. We follow Financial Accounting Standard Board Accounting Standards Codification Topic 718, (“ASC Topic 718”), for our share-based compensation awards. ASC Topic 718 requires companies to measure the compensation expense for all share-based payment awards made to employees and directors, including stock options, based on the grant date “fair value” of these awards. This calculation is performed for accounting purposes and reported in the compensation tables below, even though our NEOs may never realize any value from their awards.

Clawback Policy. We have adopted a compensation recovery policy that requires the recovery of certain erroneously paid incentive compensation received by our Section 16 officers on or after October 2, 2023, as required by new SEC rules and NASDAQ Listing Standards implemented pursuant to the Dodd-Frank Act, and which can be recovered from time-vesting or performance-vesting equity compensation (in addition to other forms of compensation).

The following table sets forth information concerning the compensation of our NEOs for the fiscal years ended December 31, 2021, 2022 and 2023, as well as their positions in 2023. In connection with Mr. Jacobs’ resignation in January 2023, Dr. Dayno was appointed as our President and Chief Executive Officer.

The following table provides supplemental information relating to grants of plan-based awards made during fiscal 2023 to help explain information provided above in our Summary Compensation Table. This table presents information regarding all grants of plan-based awards occurring during fiscal 2023.

We have entered into employment offer letters or employment agreements with each of our NEOs, the material terms of which are described below.

We have entered into an employment agreement with Jeffrey Dayno in connection with his appointment as our President and Chief Executive Officer in April 2023. The following describes the material terms of his employment agreement.

Pursuant to his employment agreement, Dr. Dayno’s annual base salary is $650,000; the actual base salary earned by Dr. Dayno for services during the last completed fiscal year is set forth above in the Summary Compensation Table. In addition, Dr. Dayno is eligible to participate in the health and welfare benefit plans and programs maintained by us for the benefit of our employees with comparable responsibilities.

Dr. Dayno is eligible to earn annual discretionary cash bonuses, determined by our board of directors (or a subcommittee thereof) in its sole discretion based on its assessment of individual and Company performance. Dr. Dayno’s target bonus opportunity of 75% his annual base salary (with a maximum bonus opportunity of 100% of his annual base salary). In addition, he is eligible to receive a one-time $300,000 retention bonus to be paid on the earlier of June 30, 2024 and a change in control event, subject to his continued employment through the earlier date.

The severance benefits and payments that may be payable to Dr. Dayno upon certain qualifying terminations of his employment are summarized below under the section titled, “—Potential Payments Upon Termination or Change in Control.”

In addition, Dr. Dayno’s employment agreement contains customary confidentiality provisions, as well as standard non-compete and employee non-solicitation restrictions effective during employment and for one year after his resignation. Dr. Dayno’s employment agreement includes a “best pay” provision under Section 280G of the Code, pursuant to which any “parachute payments” that become payable to him will be reduced so that such payments are not subject to the excise tax under Section 4999 of the Code.

Prior to entering into an employment agreement with Dr. Dayno, we were party to an offer letter with Jeffrey Dayno that we entered into in October 2017.

Pursuant to his offer letter, Dr. Dayno was entitled to receive an annual base salary of $400,000 per year. In addition, under the offer letter Dr. Dayno was eligible to participate in the health and welfare benefit plans and programs maintained by us for the benefit of our employees. Dr. Dayno was eligible to earn annual cash bonuses under our bonus program, based on the achievement of individual performance goals relating to our growth and overall performance. Dr. Dayno’s target bonus opportunity was 50% of his annual base salary.

On September 6, 2017, we entered into an employment agreement with John C. Jacobs, which was amended and restated effective upon the completion of our IPO. Mr. Jacobs’ resigned in January 2023. The following describes the material terms of his employment agreement, as in effect during his employment.

Pursuant to his employment agreement, as amended and restated, Mr. Jacobs’ annual base salary was $473,068; the actual base salary earned by Mr. Jacobs for services during the last completed fiscal year is set forth above in the Summary Compensation Table. In addition, Mr. Jacobs (and his spouse and/or eligible dependents) was eligible to participate in the health and welfare benefit plans and programs maintained by us for the benefit of our employees with comparable responsibilities.

Mr. Jacobs was eligible to earn annual discretionary cash bonuses, determined by our board of directors (or a subcommittee thereof) in its sole discretion based on its assessment of individual and Company performance. Mr. Jacobs’ target bonus opportunity ranged from 50% to 75% of his annual base salary. Mr. Jacobs did not receive a bonus with respect to 2023.

The severance benefits and payments that would have been payable to Mr. Jacobs upon certain qualifying terminations of his employment are summarized below under the section titled, “—Potential Payments Upon Termination or Change in Control.”

In addition, Mr. Jacobs’ employment agreement contains customary confidentiality provisions, as well as standard non-compete and employee non-solicitation restrictions effective during employment and for one year after his resignation.

In connection with Mr. Jacobs’ resignation, we agreed to extend the exercise period of his vested stock options until April 20, 2023, in exchange for his release of all claims against Harmony and its affiliates.

On March 4, 2021, we entered into an employment agreement with Sandip Kapadia. Mr. Kapadia’s employment under the agreement began on March 31, 2021 and will continue until terminated upon written notice by either party in accordance with the terms of the employment agreement.

Pursuant to his employment agreement, Mr. Kapadia is entitled to receive an annual base salary of $465,000 per year; the actual base salary earned by Mr. Kapadia for services during the last completed fiscal year is set forth above in the Summary Compensation Table. In addition, Mr. Kapadia is eligible to participate in the health and welfare benefit plans and programs maintained by us for the benefit of our employees with comparable responsibilities.

Mr. Kapadia is eligible to earn annual discretionary cash bonuses, as determined by our Chief Executive Officer in his sole discretion, based on the assessment of individual and Company performance. Mr. Kapadia’s target bonus opportunity is 50% of his annual base salary. The payment of any annual bonus, to the extent any annual bonus becomes payable, will be contingent upon Mr. Kapadia’s continued employment through the applicable payment date.

In connection with entering into his employment agreement, Mr. Kapadia was awarded (i) 60,000 RSUs (the “Kapadia RSU Award”) and (ii) an option to purchase 230,000 shares of our common stock (the “Kapadia Option Award”), pursuant

to the 2020 Plan. The Kapadia RSU Award vested as to 50% of the total RSUs underlying the award on March 29, 2023, and vests as to 25% of the total RSUs underlying the award on each of the first and second anniversaries of such date, subject to continued employment through the applicable vesting date. The Kapadia Option Award vests and becomes exercisable over four years (i) with respect to 50% of the total shares of our common stock underlying the option on the second anniversary of the applicable vesting commencement date, and (ii) with respect to 1/48 of the total shares underlying the option on each of the first 24 monthly anniversaries of the vesting commencement date thereafter, subject to continued service through the applicable vesting date.

The severance benefits and payments payable to Mr. Kapadia upon certain qualifying terminations of his employment are summarized below under the section titled, “—Potential Payments Upon Termination or Change in Control.”

In addition, Mr. Kapadia’s employment agreement contains customary confidentiality provisions, as well as standard non-compete and employee non-solicitation restrictions effective during employment and for one year thereafter. Mr. Kapadia’s employment agreement includes a “best pay” provision under Section 280G of the Code, pursuant to which any “parachute payments” that become payable to him will be reduced so that such payments are not subject to the excise tax under Section 4999 of the Code.

On September 7, 2017, we entered into an offer letter with Jeffrey Dierks. Mr. Dierks’ employment under the offer letter is at-will, and will continue until terminated at any time by either party.

Pursuant to his offer letter, Mr. Dierks is entitled to receive an annual base salary of $250,000 per year; the actual base salary earned by Mr. Dierks for services during the last completed fiscal year is set forth above in the Summary Compensation Table. In addition, Mr. Dierks is eligible to participate in the health and welfare benefit plans and programs maintained by us for the benefit of our employees.

Mr. Dierks is eligible to earn annual cash bonuses under our bonus program, based on the achievement of individual performance goals relating to our growth and overall performance. Pursuant to his offer letter, Mr. Dierks’ target bonus opportunity is up to 35% of his annual base salary; as noted above, Mr. Dierks’ 2023 target bonus opportunity was 50% of his annual base salary. The payment of any annual bonus, to the extent any such bonus becomes payable, will be contingent upon Mr. Dierks’ continued employment through the applicable payment date.

On March 1, 2022, we entered into an offer letter with Kumar Budur. Dr. Budur’s employment under the offer letter is at-will, and will continue until terminated at any time by either party.

Pursuant to his offer letter, Dr. Budur is entitled to receive an annual base salary of $395,000 per year; the actual base salary earned by Dr. Budur for services during the last completed fiscal year is set forth above in the Summary Compensation Table. In addition, Dr. Budur is eligible to participate in the health and welfare benefit plans and programs maintained by us for the benefit of our employees.

Dr. Budur is eligible to earn annual cash bonuses under our bonus program, based on the achievement of individual performance goals relating to our growth and overall performance. Pursuant to his offer letter, Dr. Budur’s target bonus opportunity is 40% of his annual base salary; as noted about, Dr. Budur’s 2023 target bonus opportunity was 40% of his annual base salary. The payment of any annual bonus, to the extent any such bonus becomes payable, will be contingent upon Dr. Budur’s continued employment through the applicable payment date.

In addition, Dr. Budur is eligible to receive a cash sign-on bonus in the aggregate amount of $250,000, payable in two installments of $150,000 and $100,000. The first installment was paid to Dr. Budur within three months of his start date; the second installment was payable to Dr. Budur by March 21, 2023. If Dr. Budur voluntarily resigns from employment within 12 months after receiving either installment payment, Dr. Budur is (or was, as applicable) obligated to repay the full amount of such installment to the Company on an after-tax basis.

In connection with his offer letter, Dr. Budur was awarded an option to purchase 75,000 shares of our common stock. For more information on Dr. Budur’s option award, see the section below titled, “—Outstanding Equity Awards at Fiscal Year-End.”

On September 8, 2017, we entered into an offer letter with Andrew Serafin. Mr. Serafin’s employment under the agreement is at-will, and will continue until terminated at any time by either party.

Pursuant to his offer letter, Mr. Serafin is entitled to receive an annual base salary of $300,000 per year; the actual base salary earned by Mr. Serafin for services during the last completed fiscal year is set forth above in the Summary Compensation Table. In addition, Mr. Serafin is eligible to participate in the health and welfare benefit plans and programs maintained by us for the benefit of our employees.

Mr. Serafin is eligible to earn annual cash bonuses under our bonus program, based on the achievement of individual performance goals relating to our growth and overall performance. Pursuant to his offer letter, Mr. Serafin’s target bonus opportunity is 40% of his annual base salary; as noted above, Mr. Serafin’s 2023 target bonus opportunity was 50% of his annual base salary. The payment of any annual bonus, to the extent any such bonus becomes payable, will be contingent upon Mr. Serafin’s continued employment through the applicable payment date.

The following table summarizes the number of shares of common stock underlying outstanding equity incentive plan awards for each NEO as of December 31, 2023. Due to his resignation in January 2023, Mr. Jacobs’ stock options expired on April 20, 2023.

The following table sets forth certain information concerning options exercised for our NEOs during the year ended December 31, 2023.

As discussed above, we have entered into employment offer letters or employment agreements with each of our NEOs, which provide certain of our NEOs with severance benefits and payments upon certain qualifying terminations of employment, including in connection with a “change in control” of the Company, as summarized below.

As described above, Mr. Jacobs departed from the company in January 2023. In connection with Mr. Jacobs’ resignation, we agreed to extend the exercise period of his vested stock options until April 20, 2023, in exchange for his release of all claims against Harmony and its affiliates.

Under the employment agreements with each of Dr. Dayno and Mr. Kapadia, if the executive’s employment is terminated without “cause” or due to his resignation for “good reason” (each, as defined in the applicable employment agreement), then, subject to the executive’s timely execution and non-revocation of a general release of claims, he will be eligible to receive:

On June 23, 2020, our board of directors adopted the Harmony Biosciences, LLC Separation Plan (the “Separation Plan”), which provides for the payment of certain severance and other benefits to eligible employees, including certain of our NEOs, following qualifying terminations of employment in connection with a “change in control” (as defined in the Separation Plan) of the Company. In 2023, Messrs. Dierks, Budur and Serafin participated in the Separation Plan.

Under the Separation Plan, if during the period commencing on the 30th day immediately preceding the date on which a change in control is consummated and ending on the three-month anniversary of such change in control, (i) a participant’s employment is terminated by us without “cause” (excluding death or “disability”) or by the participant for “good reason” (each as defined in the Separation Plan) and (ii) the participant is not offered a comparable position by an acquirer, then, we will pay or provide to the participant the following:

A participant’s right to receive the severance payments and benefits described above is subject to his or her delivery and non-revocation of a general release of claims in our favor, and continued compliance with the restrictive covenants contained in the Separation Plan (which includes customary confidentiality and nondisparagement provisions, as well as standard non-compete and employee/customer non-solicitation restrictions effective during employment and for one year thereafter).

As discussed above, each of our NEOs (other than Messrs. Kapadia and Budur) holds one or more option awards under our Equity Incentive Plan. Upon a “change in control” (as defined in the Equity Incentive Plan), each of these options will accelerate and vest in full, subject to the applicable executive’s continued employment through the date of the change in control.

In addition, each of our NEOs holds one or more option and/or RSU awards under the 2020 Plan. Under the 2020 Plan, upon a “change in control” (as defined in the 2020 Plan) in which outstanding equity awards have been assumed or substituted, if a participant’s employment is terminated by the Company for any reason (other than for cause or due to the participant’s death or disability) on or within 12 months following the change in control, then (i) any then-unvested award will become fully vested and (as applicable) exercisable or payable, and (ii) with respect to option awards, the applicable participant will have six months following the termination date (or such longer period as may be set forth in the applicable award agreement) to exercise the options.

In addition, the RSU awards granted to Messrs. Kapadia and Dierks in October 2023 will vest in full upon a termination of employment without cause. Mr. Kapadia’s RSU award also will vest upon his resignation for any reason following September 30, 2024. The accelerated vesting described in this paragraph is subject to the executive’s timely execution and non-revocation of a general release of claims.

The following table summarizes the payments that would be made to our NEOs upon the occurrence of certain qualifying terminations of employment or a change in control, in any case, occurring on December 31, 2023. For all NEOs, amounts shown do not include (i) accrued but unpaid base salary through the date of termination or (ii) other benefits earned or accrued by the NEO during his or her employment that are available to all salaried employees, such as accrued vacation.

In connection with Mr. Jacobs’ resignation in January 2023, he did not receive these severance payments and benefits; however, we agreed to extend the exercise period of his vested stock options until April 20, 2023, in exchange for his release of all claims against Harmony and its affiliates.