SEC Form 10-Q filed by Harmony Biosciences Holdings Inc.

SEC Form 10-Q filed by Harmony Biosciences Holdings Inc.

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$HRMY

Biotechnology: Pharmaceutical Preparations

Health Care

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HARMONY BIOSCIENCES HOLDINGS, INC._March 31, 2025

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

☒	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the Quarterly Period Ended March 31, 2025

☐	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission File Number: 001-39450

HARMONY BIOSCIENCES HOLDINGS, INC.

(Exact name of registrant as specified in its charter)


Delaware	82-2279923
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)


630 W. Germantown Pike, Suite 215, Plymouth Meeting, PA	19462
(Address of principal executive offices)	(Zip Code)

(484) 539-9800

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading
Symbol(s)

Name of each exchange
on which registered

Common Stock, par value $0.00001 value per share

HRMY

The Nasdaq Stock Market LLC
(Nasdaq Global Market)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

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:



Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐	Smaller reporting company	☐
		Emerging growth company	☐

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 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

As of May 2, 2025, there were 57,424,319 shares of the registrant’s common stock, par value $0.00001 value per share, outstanding.

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TABLE OF CONTENTS


	Page
Part I. Financial Information	3
Item 1. Financial Statements	3
Condensed Consolidated Balance Sheets (Unaudited)	3
Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited)	4
Condensed Consolidated Statements of Stockholders’ Equity (Unaudited)	5
Condensed Consolidated Statements of Cash Flows (Unaudited)	6
Notes to Condensed Consolidated Financial Statements (Unaudited)	7
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations	26
Item 3. Quantitative and Qualitative Disclosures About Market Risk	40
Item 4. Controls and Procedures	41
Part II. Other Information	41
Item 1. Legal Proceedings	41
Item 1A. Risk Factors	41
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	41
Item 3. Defaults upon Senior Securities	42
Item 4. Mine Safety Disclosures	42
Item 5. Other Information	42
Item 6. Exhibits	43
Signatures	44

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PART I. FINANCIAL INFORMATION

Item 1. Financial Statements

HARMONY BIOSCIENCES HOLDINGS, INC. AND SUBSIDIARIES

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS

(In thousands, except share and per share data)


	March 31,		December 31,
	2025		2024
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	488,998	$	453,001
Investments, short-term		17,955		14,185
Trade receivables, net		105,969		83,033
Inventory, net		6,384		7,198
Prepaid expenses		16,470		13,714
Other current assets		6,916		8,121
Total current assets		642,692		579,252
NONCURRENT ASSETS:
Property and equipment, net		1,378		1,257
Restricted cash		270		270
Investments, long-term		103,245		108,874
Intangible assets, net		107,302		113,263
Deferred tax asset		194,709		190,398
Other noncurrent assets		5,939		5,886
Total noncurrent assets		412,843		419,948
TOTAL ASSETS	$	1,055,535	$	999,200
LIABILITIES AND STOCKHOLDERS’ EQUITY
CURRENT LIABILITIES:
Trade payables	$	17,459	$	13,744
Accrued compensation		7,582		18,776
Accrued expenses		112,701		120,640
Current portion of long-term debt		17,500		16,250
Other current liabilities		19,876		5,672
Total current liabilities		175,118		175,082
NONCURRENT LIABILITIES:
Long-term debt, net		158,182		163,016
Other noncurrent liabilities		1,710		1,947
Total noncurrent liabilities		159,892		164,963
TOTAL LIABILITIES		335,010		340,045
COMMITMENTS AND CONTINGENCIES (Note 13)
STOCKHOLDERS’ EQUITY:
Common stock—$0.00001 par value; 500,000,000 shares authorized at March 31, 2025 and December 31, 2024, respectively; 57,393,673 and 57,144,887 shares issued and outstanding at March 31, 2025 and December 31, 2024, respectively		1		1
Additional paid in capital		672,503		656,872
Accumulated other comprehensive income		245		66
Retained earnings		47,776		2,216
TOTAL STOCKHOLDERS’ EQUITY		720,525		659,155
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$	1,055,535	$	999,200

The accompanying notes are an integral part of the unaudited condensed consolidated financial statements

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HARMONY BIOSCIENCES HOLDINGS, INC. AND SUBSIDIARIES

UNAUDITED CONDENSED CONSOLIDATED

STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME

(In thousands, except share and per share data)


	Three Months Ended March 31,
	2025		2024
Net product revenue	$	184,733	$	154,615
Cost of product sold		31,994		27,484
Gross profit		152,739		127,131
Operating expenses:
Research and development		34,540		22,189
Sales and marketing		30,711		27,233
General and administrative		31,243		25,676
Total operating expenses		96,494		75,098
Operating income		56,245		52,033
Other expense, net		(276)		(141)
Interest expense		(3,836)		(4,535)
Interest income		5,044		4,428
Income before income taxes		57,177		51,785
Income tax expense		(11,617)		(13,451)
Net income	$	45,560	$	38,334
Unrealized income (loss) on investments		179		(173)
Comprehensive income	$	45,739	$	38,161
EARNINGS PER SHARE:
Basic	$	0.79	$	0.68
Diluted	$	0.78	$	0.67
Weighted average number of shares of common stock - basic		57,309,938		56,771,251
Weighted average number of shares of common stock - diluted		58,524,566		57,597,627

The accompanying notes are an integral part of the unaudited condensed consolidated financial statements

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HARMONY BIOSCIENCES HOLDINGS, INC. AND SUBSIDIARIES

UNAUDITED CONDENSED CONSOLIDATED

STATEMENTS OF STOCKHOLDERS’ EQUITY

(In thousands, except share and per share data)


						Accumulated
				Additional		other				Total
	Common Stock			paid-in		comprehensive		Retained		stockholders’
	Shares	Amount		capital		income		earnings		equity
Balance as of December 31, 2024	57,144,887	$	1	$	656,872	$	66	$	2,216	$	659,155
Net income	—		—		—		—		45,560		45,560
Unrealized gain on investments	—		—		—		179		—		179
Exercise of options and restricted stock units	248,786		—		3,132		—		—		3,132
Stock-based compensation	—		—		12,499		—		—		12,499
Balance as of March 31, 2025	57,393,673	$	1	$	672,503	$	245	$	47,776	$	720,525


						Accumulated
				Additional		other				Total
	Common Stock			paid-in		comprehensive		Accumulated		stockholders’
	Shares	Amount		capital		(loss) income		deficit		equity
Balance as of December 31, 2023	56,769,081	$	1	$	610,266	$	2	$	(143,277)	$	466,992
Net income	—		—		—		—		38,334		38,334
Unrealized loss on investments	—		—		—		(173)		—		(173)
Exercise of stock options and restricted stock units	22,133		—		(153)		—		—		(153)
Stock-based compensation	—		—		10,394		—		—		10,394
Balance as of March 31, 2024	56,791,214	$	1	$	620,507	$	(171)	$	(104,943)	$	515,394

The accompanying notes are an integral part of the unaudited condensed consolidated financial statements

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HARMONY BIOSCIENCES HOLDINGS, INC. AND SUBSIDIARIES

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands, except share and per share data)


	Three Months Ended March 31,
	2025		2024
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$	45,560	$	38,334
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation		7		163
Intangible amortization		5,961		5,961
Stock-based and employee stock purchase compensation expense		12,499		10,394
Stock appreciation rights market adjustment		(49)		40
Debt issuance costs amortization		166		180
Deferred taxes		(4,311)		(3,477)
Amortization of premiums and accretion of discounts on Investment securities		(451)		(594)
Other non-cash expenses		467		467
Change in operating assets and liabilities:
Trade receivables		(22,936)		(5,579)
Inventory		814		(494)
Prepaid expenses and other assets		(1,999)		(3,439)
Trade payables		3,715		(2,586)
Other liabilities		(5,456)		(8,229)
Net cash provided by operating activities		33,987		31,141
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of investment securities		(19,132)		(25,106)
Proceeds from maturities and sales of investment securities		21,622		18,925
Purchase of property and equipment		(128)		(5)
Net cash provided by (used in) investing activities		2,362		(6,186)
CASH FLOWS FROM FINANCING ACTIVITIES:
Principal repayment of long-term debt		(3,750)		(3,750)
Payments of employee withholding taxes related to stock-based awards		(1,308)		—
Proceeds from exercised options		4,706		116
Net cash used in financing activities		(352)		(3,634)
NET INCREASE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH		35,997		21,321
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH—Beginning of period		453,271		311,930
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH—End of period	$	489,268	$	333,251
Supplemental Disclosure of Cash Flow Information:
Cash paid during the year for interest	$	4,197	$	4,585
Cash paid during the year for taxes		—		—

The accompanying notes are an integral part of the unaudited condensed consolidated financial statements

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HARMONY BIOSCIENCES HOLDINGS, INC. AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share data)

1. ORGANIZATION AND DESCRIPTION OF BUSINESS

The Company

Harmony Biosciences Holdings, Inc., and its consolidated subsidiaries (the “Company”), was founded in July 2017 as Harmony Biosciences II, LLC, a Delaware limited liability company. The Company converted to a Delaware corporation named Harmony Biosciences II, Inc. in September 2017 and, in February 2020, the Company changed its name to Harmony Biosciences Holdings, Inc. The Company’s operations are conducted in its wholly owned subsidiaries, Harmony Biosciences, LLC (“Harmony”), and Harmony Biosciences Management, Inc. The Company is headquartered in Plymouth Meeting, Pennsylvania.

The Company is cultivating a differentiated neuroscience company, rooted in innovation and driven by a commitment to addressing the unmet needs of patients living with neurological diseases. To date, we have focused on rare neurological diseases with a growing portfolio now spanning sleep/wake, neurobehavioral, and rare epilepsy, and we are harnessing scientific insights and pioneering approaches to advance meaningful treatments that help patients thrive.

In July 2017, Harmony entered into a License Agreement (the “2017 LCA”) with Bioprojet Société Civile de Recherche (“Bioprojet”) whereby Harmony acquired the exclusive right to commercialize the pharmaceutical compound pitolisant. Our lead product, WAKIX® (pitolisant) (“WAKIX”), is a first-in-class therapy with a novel mechanism of action designed to enhance histamine signaling in the brain by binding to H₃ receptors. Since its initial FDA approval in 2019 for excessive daytime sleepiness (“EDS”) in adult patients with narcolepsy, WAKIX has subsequently been approved for cataplexy in adult patients in 2020 and EDS in pediatric patients six years and older in 2024. Beyond narcolepsy, we are also advancing late-stage clinical programs exploring pitolisant in Prader-Willi syndrome (“PWS”) and continue to grow our impact in other rare neurological diseases. In July 2022, we entered into a License and Commercialization Agreement (the “2022 LCA”) with Bioprojet whereby we obtained exclusive rights to manufacture, develop and commercialize one or more next generation pitolisant based products in the United States and Latin America. Two of the next generations formulations, Pitolisant Gastro-Resistant (“Pitolisant GR”) and Pitolisant High-Dose (“Pitolisant HD”) are currently in clinical development.

Along with nurturing the growth of our original pipeline, our innovation strategy includes targeted business development that strengthens our foundation and strategically extends our patient reach as we look to expand our portfolio to new diseases beyond histaminergic science. In October 2023, the Company completed a tender offer to acquire all of the outstanding shares of common stock of Zynerba Pharmaceuticals, Inc. (together with its subsidiary, Zynerba Pharmaceutical Pty, Ltd., “Zynerba”). Zynerba was a clinical-stage pharmaceutical company focused on innovative, pharmaceutically produced transdermal cannabidiol therapies for orphan neurobehavioral disorders, including Fragile X Syndrome and 22q deletion syndrome. As of July 1, 2024, Zynerba Pharmaceuticals, Inc. was renamed and is known as Harmony Biosciences Management, Inc.

In April 2024, we expanded into orexin science through a sublicense agreement with Bioprojet for an orexin 2 receptor agonist (“BP1.15205”) in preclinical development for narcolepsy and other potential indications. Under the sublicense agreement we obtained the exclusive right to develop, manufacture and commercialize BP1.15205 in the United States and Latin American territories, which are rights originally licensed from Teijin Pharma, the innovator of BP1.15205. We further broadened our portfolio into rare epilepsy when the Company acquired all of the issued and outstanding capital stock of Epygenix Therapeutics, Inc. (“Epygenix”) in April 2024. As a result, the Company now has an exclusive license relating to the use of clemizole hydrochloride, initially for the treatment of Dravet Syndrome (“DS”) and Lennox-Gastaut Syndrome (“LGS”), and a liquid formulation of lorcaserin for the treatment of developmental and epileptic encephalopathies.

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2. LIQUIDITY AND CAPITAL RESOURCES

The unaudited condensed consolidated financial statements have been prepared as though the Company will continue as a going concern, which contemplates the realization of assets and satisfaction of liabilities in the normal course of business. The Company had retained earnings of $47,776 and $2,216, as of March 31, 2025, and December 31, 2024, respectively. As of March 31, 2025, the Company had cash, cash equivalents and investments of $610,198.

The Company believes that its existing cash, cash equivalents and investments on hand as of March 31, 2025, as well as additional cash generated from operating and financing activities will meet its operational liquidity needs and fund potential investing activities for the next twelve months from the date of issuance of these unaudited condensed consolidated financial statements.

3. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

The unaudited condensed consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”) and include all adjustments necessary for the fair presentation of the Company’s financial position for the periods presented. All intercompany accounts and transactions have been eliminated in consolidation. The unaudited condensed consolidated balance sheet as of March 31, 2025, the unaudited condensed consolidated statements of cash flows for the three months ended March 31, 2025, and 2024, and the unaudited condensed consolidated statements of operations and comprehensive income and the unaudited condensed consolidated statements of shareholders’ equity for the three months ended March 31, 2025, and 2024, are unaudited. The balance sheet as of December 31, 2024, was derived from audited financial statements as of and for the year ended December 31, 2024. The unaudited interim condensed consolidated financial statements have been prepared on the same basis as the audited annual financial statements as of and for the year ended December 31, 2024, and, in the opinion of management, reflect all adjustments, which include only normal recurring adjustments, necessary for the fair presentation of the Company’s financial position as of March 31, 2025, and the results of its operations and its cash flows for the three months ended March 31, 2025, and 2024. The unaudited condensed consolidated results of operations are not necessarily indicative of the results that may occur for the full fiscal year. Certain information and disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted under the SEC’s rules and regulations. These unaudited condensed consolidated financial statements should be read in conjunction with the audited financial statements and accompanying notes thereto contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024.

Significant Risks and Uncertainties

The Company’s operations are subject to a number of factors that can affect its operating results and financial condition. Such factors include, but are not limited to, clinical trial results of the Company’s product candidates; the Company’s ability to obtain regulatory approval to market its products; competition from products manufactured and sold or being developed by other companies, including generic competition; the price of, and demand for, the Company’s products, if approved; the Company’s ability to negotiate favorable licensing or other manufacturing and marketing agreements for its product candidates.

The Company currently has one commercially approved product, WAKIX, and there can be no assurance that the Company’s research and development efforts will result in successfully commercialized products in addition to WAKIX. Developing and commercializing a product requires significant time and capital and is subject to regulatory review and approval as well as competition from other biotechnology and pharmaceutical companies. The Company operates in an environment of rapid change and is dependent upon the continued services of its employees and consultants and obtaining and protecting intellectual property.

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Use of Estimates

The preparation of financial statements in conformity with GAAP requires the Company to make estimates and assumptions that affect the reported amounts and disclosures in the unaudited condensed consolidated financial statements, including the notes thereto, and elsewhere in this report. Actual results may differ significantly from estimates, which include rebates due pursuant to commercial and government contracts, accrued research and development expenses, stock-based compensation expense and income taxes.

Operating Segments

Operating segments are defined as components of an entity for which separate financial information is available and that is regularly reviewed by the Chief Operating Decision Maker (“CODM”) in deciding how to allocate resources to an individual segment and in assessing performance. The Company has determined it operates in a single operating segment, rare neurological diseases and, therefore, has one reportable segment. The Company holds all its tangible assets, conducts its operations, and generates its revenue in the United States.

Fair Value of Financial Instruments

The Company’s unaudited condensed consolidated financial statements include cash, cash equivalents, restricted cash, accounts payable, and accrued liabilities, all of which are short term in nature and, accordingly, approximate fair value.

It is the Company’s policy to measure non-financial assets and liabilities at fair value on a nonrecurring basis. These non-financial assets and liabilities are not measured at fair value on an ongoing basis but are subject to fair value adjustments in certain circumstances (such as evidence of impairment), which, if material, are disclosed in the accompanying footnotes.

The Company measures certain assets and liabilities at fair value based on the fair value hierarchy that prioritizes inputs to valuation techniques used to measure fair value into three levels based on the source of inputs as follows:

Level 1—Valuations based on unadjusted quoted prices in active markets for identical assets or liabilities.

Level 2—Valuations based on observable inputs and quoted prices in active markets for similar assets and liabilities.

Level 3—Valuations based on unobservable inputs and models that are supported by little or no market activity.

Money market funds are classified as Level 1 fair value instruments. Investments in available-for-sale debt securities are classified as Level 2 and carried at fair value, which we estimate utilizing a third-party pricing service. The pricing service utilizes industry standard valuation models whereby all significant inputs, including benchmark yields, reported trades, broker/dealer quotes, issuer spreads, bids, offers, or other market-related data, are observable. We validate valuations obtained from third-party services by obtaining market values from other pricing sources. The Company did not classify any assets or liabilities as Level 3 as of March 31, 2025, or December 31, 2024.

Cash, Cash Equivalents and Restricted Cash

Cash and cash equivalents and restricted cash consist of cash and, if applicable, highly liquid investments with an original maturity of three months or less when purchased, including investments in money

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market funds and debt securities that approximate fair value. The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the balance sheet and the statements of cash flows.


	As of
	March 31,		December 31,
	2025		2024
Cash and cash equivalents	$	488,998	$	453,001
Restricted cash		270		270
Total cash, cash equivalents, and restricted cash shown in the statements of cash flows	$	489,268	$	453,271

Restricted cash includes amounts required to be held as a security deposit in the form of letters of credit for the Company’s credit card program and the fleet program.

Investments

The Company’s investments consist of debt securities that are classified as available-for-sale. Short-term and long-term investments are carried at fair value and unrealized gains and losses are recorded as a component of accumulated comprehensive income in stockholders’ equity. Interest income earned on cash and investment balances, accretion of the discount on investments in debt securities, amortization of premiums and realized gains and losses, if any, are recorded in interest income on the unaudited condensed consolidated statement of operations and comprehensive income. Realized gains and losses that result from the sale of investments are determined on a specific identification basis.

At each reporting period, the Company reviews any unrealized losses position to determine if the decline in the fair value of the underlying investments is a result of credit losses or other factors. If the assessment indicates that a credit loss exists, any impairment is recognized as an allowance for credit losses in our consolidated statement of operations.

Concentrations of Risk

Substantially all of the Company’s cash and money market funds are held in five financial institutions. Due to their size, the Company believes these financial institutions represent minimal credit risk. Deposits may exceed the amount of insurance provided on such deposits by the Federal Deposit Insurance Corporation for U.S. institutions. The Company believes that it is not exposed to significant credit risk due to the financial position of the depository institutions in which those deposits are held.

The Company is subject to credit risk from its trade receivables related to product sales. The Company extends credit to specialty pharmaceutical distribution companies within the United States. Customer creditworthiness is monitored, and collateral is not required. Historically, the Company has not experienced credit losses on its accounts receivable. The Company monitors its exposure within accounts receivable and would record a reserve for uncollectible amounts, if necessary. As of March 31, 2025, three customers accounted for 100% of gross accounts receivable; Caremark LLC (“CVS Caremark”), which accounted for 40% of gross accounts receivable; Accredo Health Group, Inc. (“Accredo”), which accounted for 32% of gross accounts receivable; and PANTHERx Specialty Pharmacy LLC (“Pantherx”), which accounted for 28% of gross accounts receivable. As of December 31, 2024, three customers accounted for 100% of gross accounts receivable; CVS Caremark, which accounted for 39% of gross accounts receivable, Pantherx, which accounted for 31% of gross accounts receivable; and Accredo, which accounted for 30% of gross accounts receivable.

For the three months ended March 31, 2025, three customers accounted for 100% of gross product revenue; CVS Caremark accounted for 40% of gross product revenue; Accredo accounted for 35% of gross product revenue; and Pantherx accounted for 25% of gross product revenue. For the three months ended March 31, 2024, three customers accounted for 100% of gross product revenue; CVS Caremark accounted for

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42% of gross product revenue; Accredo accounted for 33% of gross product revenue; and Pantherx accounted for 25% of gross product revenue.

The Company depends on a single supplier of the active pharmaceutical ingredient (“API”) for its commercial product, WAKIX, and single API suppliers for each of its potential product candidates.

Share Repurchases

The Company accounts for share repurchases as constructive retirements, whereby it reduces common stock and additional paid-in capital by the amount of the original issuance, with any excess purchase price recorded as a reduction to retained earnings. Under this method, issued and outstanding shares of common stock are reduced by the amount of shares of common stock repurchased, and no treasury stock is recognized on the condensed consolidated financial statements.

Business Combinations

Business combinations and asset acquisitions are accounted for in accordance with FASB ASC 805 Business Combinations. Refer to Note 4, Acquisitions, for a more detailed discussion of the Company’s acquisition of Epygenix.

Recently Adopted Accounting Pronouncements

In November 2023, the FASB issued Accounting Standards Update (“ASU”) No. 2023-07, Improvements to Reportable Segment Disclosures (“ASU 2023-07”). ASU 2023-07 is intended to improve reportable segment disclosures primarily through enhanced disclosure of reportable segment expenses and requires that a public entity that has a single reportable segment provide all the disclosures required by ASU 2023-07 and all existing segment disclosures in Topic 280. This ASU was effective for annual reporting periods beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. Early adoption was permitted. ASU 2023-07 was required to be applied retrospectively to all prior periods presented in the financial statements. The Company adopted this guidance in the fourth quarter of 2024. This pronouncement addresses disclosures only and had no impact on the Company’s consolidated financial statements.

Recently Issued Accounting Pronouncements

In December 2023, the FASB issued Accounting Standards Update (“ASU”) No 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures” (“ASU 2023-09”). ASU 2023-09 expands disclosures in the rate reconciliation and requires disclosure of income taxes paid by jurisdiction. ASU 2023-09 is effective for fiscal years beginning after December 15, 2024. Early adoption is permitted. The Company is currently evaluating the impact that ASU 2023-09 will have on its condensed consolidated financial statements.

In November 2024, the FASB issued ASU 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40). ASU 2024-03 requires disclosure, in the notes to the financial statements, of specified information about certain costs and expenses, including amounts of purchases of inventory, employee compensation, depreciation, and intangible asset amortization included in each relevant expense caption, as well as a qualitative description of amounts remaining in relevant expense captions that are not separately disaggregated quantitatively. ASU 2024-03 also requires disclosure of the total amount of selling expenses and, in annual periods, an entity’s definition of selling expenses. ASU 2024-03 is effective for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027. The guidance may be applied prospectively or retrospectively. Early adoption is permitted. The Company is currently evaluating the impact that ASU 2024-03 will have on the Company’s consolidated financial statements.

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4. ACQUISITIONS

Acquisition of Epygenix

On April 30, 2024, the Company acquired all of the issued and outstanding capital stock of Epygenix pursuant to the terms of a stock purchase agreement. The Company paid the former stockholders of Epygenix up front consideration of $35,000 less a working capital adjustment. In addition, the Company will be obligated to pay up to $130,000 upon the achievement of development and regulatory milestones and up to $515,000 upon the achievement of certain sales-based milestones, in each case to Epygenix’s former stockholders. As a result, the Company now has an exclusive license relating to the use of clemizole, initially for the treatment of DS and LGS.

The acquisition of Epygenix was accounted for as an asset acquisition under ASC Topic 805, Business Combinations. The Company did not acquire any outputs and there was not an acquired substantive process in place to create outputs. The Company recognized the acquired assets and assumed liabilities based on the consideration paid, including transaction costs, on a relative fair value basis, and after first allocating the preliminary excess of the fair value of net assets acquired over the purchase price consideration to certain qualifying assets, principally, the IPR&D asset. In accordance with the accounting for asset acquisitions, an entity that acquires IPR&D assets in an asset acquisition follows the guidance in ASC Topic 730, Research and Development, which requires that both tangible and intangible identifiable research and development assets with no alternative future use be allocated a portion of the consideration transferred and recorded as research and development expense at the acquisition date. As a result, the Company recorded a charge of $17,095 related to acquired in-process research and development expense during the year ended December 31, 2024.

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5. INVESTMENTS

The carrying value and amortized cost of the Company’s available-for-sale debt securities, summarized by type of security, consisted of the following:


	March 31, 2025
		Amortized	Unrealized	Unrealized		Fair
		Cost	Gains	Losses		Value
Short-term:
Commercial paper	$	11,401	11	—	$	11,412
Corporate debt securities		6,535	8	—		6,543
Total short-term investments	$	17,936	19	—	$	17,955

Long-term:
Commercial paper	$	778	2	—	$	780
Corporate debt securities		84,911	232	(50)		85,093
U.S. government securities		17,330	43	(1)		17,372
Total long-term investments	$	103,019	277	(51)	$	103,245


	December 31, 2024
		Amortized	Unrealized	Unrealized		Fair
		Cost	Gains	Losses		Value
Short-term:
Commercial paper	$	7,670	9	(1)	$	7,678
Corporate debt securities		6,495	12	—		6,507
Total short-term investments	$	14,165	21	(1)	$	14,185

Long-term:
Corporate debt securities		86,700	192	(142)		86,750
U.S. government securities		22,128	11	(15)		22,124
Total long-term investments	$	108,828	203	(157)	$	108,874

The Company classifies investments with an original maturity of less than one year as current and investments with an original maturity date of greater than one year as noncurrent in its unaudited condensed consolidated balance sheet. The investments classified as noncurrent have original maturity dates ranging from 1-2 years. The Company did not have any available-for-sale debt security investments in a continuous unrealized loss position of greater than 12 months as of March 31, 2025, and December 31, 2024, respectively.

6. FAIR VALUE MEASUREMENTS

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The Company’s assets measured at fair value consisted of the following:


	March 31, 2025				December 31, 2024
		Total	Level 1	Level 2		Total	Level 1	Level 2
Assets
Cash equivalents	$	302,200	302,200	—	$	303,545	303,545	—
Commercial paper		12,192	—	12,192		7,678	—	7,678
Corporate debt securities		91,636	—	91,636		93,257	—	93,257
U.S. government securities		17,372	—	17,372		22,124	—	22,124
Total	$	423,400	302,200	121,200	$	426,604	303,545	123,059

7. INVENTORY

Inventory, net consisted of the following:


	As of
	March 31,		December 31,
	2025		2024
Raw materials	$	912	$	944
Work in process		3,411		3,489
Finished goods		2,225		2,765
Inventory, gross		6,548		7,198
Reserve for excess inventory		(164)		—
Total inventory, net	$	6,384	$	7,198

8. INTANGIBLE ASSETS

In August 2019, the Company received FDA approval of WAKIX for the treatment of EDS in adult patients with narcolepsy. This event triggered a milestone payment of $75,000 under the provisions of the 2017 LCA which the Company capitalized as an intangible asset. The Company determined a useful life of 10 years for the intangible asset, and, as of March 31, 2025, the remaining useful life was 4.5 years.

In October 2020, the Company received FDA approval for the New Drug Application (“NDA”) for WAKIX for the treatment of cataplexy in adult patients with narcolepsy. This event triggered a milestone payment of $100,000 under the provisions of the 2017 LCA which the Company capitalized as an intangible asset and paid in January of 2021. The Company determined a useful life of 9 years for the intangible asset, and, as of March 31, 2025, the remaining useful life was 4.5 years.

In February 2022, the Company attained $500,000 in life-to-date aggregate net sales of WAKIX in the United States. This event triggered a final $40,000 payment under the provisions of the 2017 LCA which the Company capitalized as an intangible asset and paid in March of 2022. The Company determined a useful life of 7.6 years for the intangible asset, and, as of March 31, 2025, the remaining useful life was 4.5 years.

Amortization expense was $5,961 for each of the three months ended March 31, 2025, and 2024, respectively, and is recorded in general and administrative on the unaudited condensed consolidated statements of operations and comprehensive income.

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The Company expects the future annual amortization expense for the unamortized intangible assets to be as follows:


Years ending December 31,
2025 (excluding the three months ended March 31, 2025)	$	17,884
2026		23,845
2027		23,845
2028		23,845
2029		17,883
Thereafter		—
Total	$	107,302

The gross carrying amount and net book value of the intangible asset was as follows:


	As of
	March 31,		December 31,
	2025		2024
Gross Carrying Amount	$	215,000	$	215,000
Accumulated Amortization		(107,698)		(101,737)
Net Book Value	$	107,302	$	113,263

9. LICENSE AGREEMENTS AND ASSET PURCHASE AGREEMENTS

Bioprojet Agreements

In July 2017, Harmony entered into the 2017 LCA with Bioprojet whereby Harmony acquired the exclusive right to commercialize the pharmaceutical compound pitolisant for the treatment, and/or prevention, of narcolepsy, obstructive sleep apnea, idiopathic hypersomnia, and Parkinson’s disease, as well as any other indications unanimously agreed by the parties in the United States and its territories. A milestone payment of $50,000 was due upon acceptance by the FDA of pitolisant’s NDA, which was achieved in February 2019 and was expensed within research and development for the year ended December 31, 2019. A milestone payment of $77,000, which included a $2,000 fee that is described below, was due upon FDA approval of WAKIX (pitolisant) for treatment of EDS in adult patients with narcolepsy, which was achieved in August 2019. The $2,000 payment and $75,000 milestone payment were paid in August and November 2019, respectively. In addition, a milestone payment of $102,000, which included a $2,000 fee was due upon the FDA approval of the NDA for WAKIX for the treatment of cataplexy in adult patients with narcolepsy. The $2,000 payment was paid in October 2020 and a $100,000 milestone payment was paid in January 2021. A final $40,000 milestone payment was paid to Bioprojet in March 2022 upon WAKIX attaining $500,000 in aggregate net sales in the United States. The 2017 LCA also requires a fixed trademark royalty and a tiered royalty based on net sales, which is payable to Bioprojet on a quarterly basis. The Company incurred $29,557 and $24,738 for the three months ended March 31, 2025, and 2024, respectively, for sales-based, trademark and tiered royalties recognized as cost of product sold. As of March 31, 2025, and December 31, 2024, the Company had accrued $29,557 and $51,746, respectively, for sales-based, trademark and tiered royalties.

In July 2022, Harmony entered into the 2022 LCA with Bioprojet whereby Harmony obtained exclusive rights to manufacture, use and commercialize one or more new products based on pitolisant in the United States and Latin America, with the potential to add additional indications and formulations upon agreement of both parties. Harmony paid an initial, non-refundable $30,000 licensing fee in October 2022 and additional payments of up to $155,000 are potentially due under the 2022 LCA upon the achievement of certain future development and sales-based milestones. In addition, there are other payments due upon achievement of development milestones for new indications and formulations as agreed upon by both parties. The 2022 LCA also requires a fixed trademark royalty and a tiered royalty based on net sales upon commercialization, which will be payable to Bioprojet on a quarterly basis.

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In April 2024, the Company announced that it entered into a sublicense agreement with Bioprojet for an orexin-2 receptor agonist (the “Licensed Compound”) to be evaluated for the treatment of narcolepsy and other potential indications (the “Sublicense”). Under the Sublicense, the Company obtained the exclusive right to develop, manufacture and commercialize the Licensed Compound in the United States and Latin American territories (the “Licensed Territories”), which are rights that Bioprojet originally licensed from Teijin Pharma, the innovator of the Licensed Compound. The Licensed Compound is currently in pre-clinical development with an Investigational Medicinal Product Dossier (“IMPD”) Application currently anticipated in mid-2025. Under the Sublicense, the Company paid Bioprojet an upfront license fee of $25,500, which the Company recognized as an IPR&D charge recorded in research and development within the consolidated statements of operations and comprehensive income for the year ended December 31, 2024, and will also be obligated to pay up to $127,500 upon achievement of development and regulatory milestones and up to $240,000 upon achievement of sales-based milestones, as well as royalty rates in the mid-teens on any sales of product using the Licensed Compound in the Licensed Territories.

ConSynance Agreement

In August 2021, the Company entered into an asset purchase agreement with ConSynance Therapeutics, Inc. (the “APA”) to acquire HBS-102 (formerly referred to as “CSTI-100”), a potential first-in-class molecule with a novel mechanism of action. Under the terms of the APA, the Company acquired full development and commercialization rights globally, with the exception of Greater China, for $3,500. The Company accounted for the transaction as an asset acquisition as substantially all of the fair value of the assets acquired was concentrated in a single identified asset. In March 2023, the Company achieved a preclinical milestone, which triggered a $750 payment under the provisions of the APA, which the Company recognized as an IPR&D charge recorded in research and development within the consolidated statement of operations and comprehensive income for the year ended December 31, 2023. In September 2024, the Company achieved a milestone for preclinical proof-of-concept, which triggered a $1,000 payment under the provisions of the APA, which the Company recognized as an IPR&D charge recorded in research and development within the consolidated statement of operations and comprehensive income for the year ended December 31, 2024. There are additional payments due under the APA upon the achievement of certain milestones including $19,000 for development milestones, $44,000 for regulatory milestones and $110,000 for sales milestones.

10. ACCRUED EXPENSES

Accrued expenses consisted of the following:


	As of
	March 31,		December 31,
	2025		2024
Royalties due to Bioprojet	$	29,557	$	51,746
Rebates and other sales deductions		58,303		50,542
Interest		2,308		2,834
Sales and marketing		4,276		2,166
Research and development		8,943		9,014
Professional fees, consulting, and other services		7,619		3,047
Other expenses		1,695		1,291
	$	112,701	$	120,640

11. DEBT

Term Loan A Credit Agreement

In July 2023, the Company entered into a Credit Agreement (the “TLA Credit Agreement”) with JPMorgan Chase Bank, N.A., as “Administrative Agent”, and certain lenders, which was subsequently amended

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in September 2023. The TLA Credit Agreement, as amended, provides for a five-year senior secured term loan (the “TLA Term Loan”) in an aggregate principal amount of $200,000.

The repayment schedule for the TLA Term Loan consists of quarterly $3,750 principal payments, which commenced on December 31, 2023, increasing to quarterly $5,000 principal payments beginning on December 31, 2025, with a $115,000 payment due on the maturity date of July 26, 2028. The TLA Term Loan bears interest at a per annum rate equal to, at the Company’s option, (i) a base rate plus a specified margin ranging from 2.50% to 3.00%, based on the Company’s senior secured net leverage ratio (as defined in the TLA Credit Agreement) or (ii) Term SOFR plus a credit spread adjustment of 0.10% plus a specified margin ranging from 3.50% to 4.00%, based on the Company’s senior secured net leverage ratio.

The net cash received related to the TLA Term Loan as a result of the transactions, less debt issuance costs of $2,997, was $197,003. The debt issuance costs related to the TLA Term Loan will be amortized as additional interest expense over the loan term of the TLA Credit Agreement. The fair value of the TLA Term Loan as of March 31, 2025, was $174,593.

Long-term debt, net consisted of the following:


	March 31,		December 31,
	2025		2024
Principal amount	$	177,500	$	181,250
Unamortized debt discount associated with debt financing costs		(1,818)		(1,984)
Total debt, net		175,682		179,266
Less current portion		(17,500)		(16,250)
Long-term debt, net	$	158,182	$	163,016

Future minimum payments relating to long-term debt, net as of March 31, 2025, for the periods indicated below consisted of the following:


Years ending December 31,
2025 (excluding the three months ended March 31, 2025)	$	12,500
2026		20,000
2027		20,000
2028		125,000
2029		—
Thereafter		—
Total	$	177,500

Interest expense related to the Company’s long-term debt, net, is included in interest expense within the unaudited condensed consolidated statements of operations and comprehensive income and consisted of the following:


	Three Months Ended
	March 31,
	2025		2024
Interest on principal balance	$	3,670	$	4,355
Amortization of deferred financing costs		166		180
Total term loan interest expense	$	3,836	$	4,535

12. LEASES

In June 2018, the Company entered into an operating lease for approximately fifteen thousand square feet of office space in Plymouth Meeting, PA, which was set to expire in May 2024. The Company subsequently entered into two separate operating leases for additional office space in Plymouth Meeting, PA, which include

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approximately thirteen thousand square feet and seven thousand square feet of additional office space, respectively, and were extended through June 2025. The terms of the lease payments provide for rental payments on a monthly basis and on a graduated scale. The Company also leases a fleet of automobiles that are primarily used by its sales force and are classified as operating leases.

Operating lease right-of-use assets and operating lease liabilities are recognized based on the present value of the future lease payments using our incremental borrowing rate. Leases with an initial term of 12 months or less are not recorded on the balance sheet. Our leases have remaining lease terms of less than 1 year to 3 years, some of which may include the option to extend or terminate the leases.

The Company recorded operating lease costs of $467 and $509 for the three months ended March 31, 2025, and 2024, respectively.

As of March 31, 2025, the weighted-average remaining lease term for operating leases was 1.6 years and the weighted-average discount rate for operating leases was 7.72%.

Supplemental balance sheet information related to operating leases was as follows:


Leases	Classification		March 31, 2025		December 31, 2024
Assets
Operating lease right-of-use assets	Other noncurrent assets	$	1,726	$	2,122
Liabilities
Operating lease liability, current portion	Other current liabilities	$	1,148	$	1,318
Operating lease liability, long-term	Other long-term liabilities		634		822
Total operating lease liabilities		$	1,782	$	2,140

Supplemental cash flow information related to operating leases was as follows:


		March 31, 2025		March 31, 2024
Operating cash flows from operating leases	$	430	$	561
Right of use assets obtained in exchange for operating lease obligations	$	34	$	1,198

Future payments under non-cancelable operating leases with initial terms of one year or more as of March 31, 2025, consisted of the following:


Years ending December 31,
2025 (excluding the three months ended March 31, 2025)	$	1,003
2026		701
2027		183
2028		—
2029		—
Thereafter		—
Total lease payments		1,887
Less: imputed interest		(105)
Total lease liabilities	$	1,782

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13. COMMITMENTS AND CONTINGENCIES

Legal Proceedings

From time to time, the Company is subject to claims and suits arising in the ordinary course of business. The Company accrues such liabilities when they are known, if they are deemed probable and can be reasonably estimated. Accruals may be adjusted from time to time, as appropriate, in light of new information. The amount of loss incurred in relation to matters for which an accrual has been established may be higher or lower than the amounts accrued. Any expenses, fines, fees, penalties, judgments or settlements that might be incurred by the Company in connection with proceedings could have a material adverse effect on the Company’s results of operations and financial condition. As of March 31, 2025, there were no material claims or lawsuits outstanding other than the ANDA litigation discussed below.

Abbreviated New Drug Application (“ANDA”) Litigation

On September 27, 2023, the Company and its licensor, Bioprojet, received notice from Lupin Limited (“Lupin”) pursuant to 21 U.S.C. § 355(j) et seq. and 21 C.F.R. § 314.95 et seq. (the “Lupin Notice Letter”) that Lupin has submitted ANDA No. 218846 (the “Lupin ANDA”) to the FDA and is seeking regulatory approval to market a generic version of WAKIX^® before the expiration of U.S. Patent Nos. 8,486,947 (“’947 patent”) and 8,207,197 (“’197 patent”). On September 27, 2023, the Company and Bioprojet received notice from Novugen Pharma Sdn. Bhd. (“Novugen”) pursuant to 21 U.S.C. § 355(j) et seq. and 21 C.F.R. § 314.95 et seq. (the “Novugen Notice Letter”) that Novugen has submitted ANDA No. 218834 (the “Novugen ANDA”) to the FDA and is seeking regulatory approval to market a generic version of WAKIX^® before the expiration of the ’947 patent and ’197 patent. The ’947 patent and the ‘197 patent are listed with respect to WAKIX^® in the FDA’s Orange Book and will expire in September 2029 and March 2030, respectively. The Lupin Notice Letter and the Novugen Notice Letter assert that their generic product will not infringe the ’947 patent and the ‘197 patent and/or that the ’947 patent and the ‘197 patent are invalid or unenforceable. On November 9, 2023, we, Bioprojet and Bioprojet’s wholly owned subsidiary, Bioprojet Pharma SAS (“Bioprojet Pharma”), filed a complaint for patent infringement of the ’947 patent and the ‘197 patent against Lupin, Novugen and certain of their affiliates and agents in the United States District Court for the District of Delaware in response to the filing of their respective ANDAs with the FDA.

On October 12, 2023, the Company and Bioprojet received notice from Novitium Pharma LLC (“Novitium”), pursuant to 21 U.S.C. § 355(j) et seq. and 21 C.F.R. § 314.95 et seq. (the “Novitium Notice Letter”), that Novitium has submitted ANDA No. 218495 (the “Novitium ANDA”) to the FDA and is seeking regulatory approval to market a generic version of WAKIX^® before the expiration of U.S. Patent No. 8,354,430 (the “’430 patent”), which is also listed with respect to WAKIX^® in the FDA’s Orange Book and will expire in February 2026, ’947 patent, and ’197 patent. On October 12, 2023, the Company and Bioprojet received notice from Zenara Pharma Pvt. Ltd. (“Zenara”), pursuant to 21 U.S.C. § 355(j) et seq. and 21 C.F.R. § 314.95 et seq. (the “Zenara Notice Letter”), that Zenara has submitted ANDA No. 218796 (the “Zenara ANDA”) to the FDA and is seeking regulatory approval to market a generic version of WAKIX^® before the expiration of the ’430 patent, ’947 patent and the ’197 patent. On October 14, 2023, the Company and Bioprojet received notice from AET Pharma US, Inc. (“AET”), pursuant to 21 U.S.C. § 355(j) et seq. and 21 C.F.R. § 314.95 et seq. (the “AET Notice Letter”), that AET has submitted ANDA No. 218892 (the “AET ANDA”) to the FDA and is seeking regulatory approval to market a generic version of WAKIX^® before the expiration of the ’947 patent and the ’197 patent. On October 16, 2023, the Company and Bioprojet received notice from Annora Pharma Private Limited (“Annora”), pursuant to 21 U.S.C. § 355(j) et seq. and 21 C.F.R. § 314.95 et seq. (the “Annora Notice Letter”), that Annora has submitted ANDA No. 218832 (the “Annora ANDA”) to the FDA and is seeking regulatory approval to market a generic version of WAKIX^® before the expiration of the ’430 patent, the ’947 patent and the ’197 patent. AET’s Notice Letter asserts that AET’s generic product will not infringe the ’947 patent and the ‘197 patent and/or that ’947 patent and the ‘197 patent are invalid or unenforceable. The Annora Notice Letter asserts that its generic product will not infringe the ‘430 patent, ’947 patent and the ‘197 patent and/or that the ‘430 patent, ’947 patent and the ‘197 patent are invalid or unenforceable. The Novitium Notice Letter asserts that its generic product will not infringe the ‘430 patent, ’947 patent and the ‘197 patent and/or that the ‘430 patent, ’947 patent and the ‘197 patent are invalid or unenforceable. The Zenara Notice Letter asserts that its

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generic product will not infringe the ‘430 patent, ’947 patent and the ‘197 patent and/or that the ‘430 patent, ’947 patent and the ‘197 patent are invalid or unenforceable. On November 21, 2023, the Company, Bioprojet and Bioprojet Pharma filed a complaint for patent infringement of the ’947 patent and the ‘197 patent against AET, Annora, Novitium and Zenara and certain of their affiliates and agents and for patent infringement of the ’430 patent against Annora, Novitium and Zenara and certain of their affiliates and agents in the United States District Court for the District of Delaware in response to their filing of their respective ANDAs with the FDA.

In October 2023, MSN Pharmaceuticals Inc. (“MSN Pharma”) sent correspondence to the Company and Bioprojet stating that MSN Pharma has submitted ANDA No. 218873 (the “MSN ANDA”) to the FDA and is seeking regulatory approval to market a generic version of WAKIX^®_.On December 8, 2023, MSN Laboratories Private Limited (“MSN”) filed a declaratory judgment action in the United States District Court for the Eastern District of Virginia against Bioprojet claiming that the ‘430 patent, the ’947 patent and the ‘197 patent will not be infringed by MSN’s generic version of WAKIX^®and that the ‘947 patent is invalid. On December 11, 2023, we, Bioprojet and Bioprojet Pharma filed a complaint in the United States District Court for the District of Delaware for patent infringement of the ‘430 patent, the ’947 patent and the ‘197 patent against MSN and MSN Pharma. On January 12, 2024, the declaratory judgment action was transferred from the United States District Court for the Eastern District of Virginia to the United States District Court for the District of Delaware.

On April 15, 2024, the United States District Court for the District of Delaware issued a scheduling order consolidating the cases described above for all purposes up to and including trial (the “Scheduling Order”). The Scheduling Order set March 27, 2025, as the date for the hearing on claim construction and scheduled a four-day bench trial beginning on February 17, 2026.

On August 7, 2024, the Company and Bioprojet received further notice from AET pursuant to 21 U.S.C. § 355(j) et seq. and 21 C.F.R. § 314.95 et seq. (the “Second AET Notice Letter”) that AET has submitted the AET ANDA to the FDA and is seeking regulatory approval to market a generic version of WAKIX^® before the expiration of the ‘947 patent and the ‘197 patent. The Second AET Notice Letter asserts that its generic product will not infringe the ’947 patent and the ‘197 patent and/or that the ’947 patent and the ‘197 patent are invalid or unenforceable. On August 13, 2024, we, Bioprojet and Bioprojet Pharma filed a complaint in the United States District Court for the District of Delaware for patent infringement of the ’947 patent and the ‘197 patent against AET.

On October 31, 2024, the Company reached an agreement with Novugen Pharma to resolve the dispute over Novugen’s ANDA for a generic pitolisant hydrochloride product. Under the terms of the settlement agreement, the litigation between the parties in the United States District Court for the District of Delaware was ended on November 4, 2024, and Novugen will have a license to sell its generic product beginning January 2030, or earlier under certain circumstances.

On December 12, 2024, the Company and Bioprojet received further notice from Lupin pursuant to 21 U.S.C. § 355(j) et seq. and 21 C.F.R. § 314.95 et seq. (the “Second Lupin Notice Letter”) that Lupin has submitted the Lupin ANDA to the FDA and is seeking regulatory approval to market a generic version of WAKIX^® before the expiration of the ‘947 patent and the ‘197 patent. The Second Lupin Notice Letter asserts that its generic product will not infringe the ’947 patent and the ‘197 patent and/or that the ’947 patent and the ‘197 patent are invalid or unenforceable. On January 24, 2025, we, Bioprojet and Bioprojet Pharma filed a complaint in the United States District Court for the District of Delaware for patent infringement of the ’947 patent and the ‘197 patent against Lupin.

On March 24, 2025, the Company reached an agreement with Annora to resolve the dispute over Annora’s ANDA for a generic pitolisant hydrochloride product. Under the terms of the settlement agreement, the litigation between the parties in the United States District Court for the District of Delaware was ended on March 31, 2025, and Annora will have a license to sell its generic product beginning January 2030, or earlier under certain circumstances.

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The resolution of one or more of these matters against the Company could have a significant negative effect on the Company’s results of operations.

14. STOCKHOLDERS’ EQUITY

Common Stock

The holders of common stock are entitled to one vote for each share held on all matters submitted to a vote of the Company’s stockholders. The holders of common stock do not have any cumulative voting rights. Holders of common stock are entitled to receive any dividends declared by the Company’s board of directors out of funds legally available for that purpose, subject to any preferential dividend rights of any outstanding preferred stock. The Company’s common stock has no preemptive rights, conversion rights or other subscription rights or redemption or sinking fund provisions.

Share Repurchase Program

In October 2023, the Company’s Board of Directors approved a share repurchase program (the “October 2023 Repurchase Program”) providing for the repurchase of shares of common stock in an aggregate amount of up to $200,000, excluding commissions and transaction fees. The October 2023 Repurchase Program may be suspended, terminated, or modified at any time for any reason. During the three months ended March 31, 2025, and 2024, no shares of common stock were repurchased and cancelled by the Company under the October 2023 Repurchase Program. As of March 31, 2025, the remaining amount of common stock authorized for repurchases was $150,000.

15. STOCK INCENTIVE PLAN AND STOCK-BASED COMPENSATION

2020 Stock Incentive Plan

In August 2020, the Company adopted, and its stockholders approved, the 2020 Incentive Award Plan (the “2020 Plan”), in order to facilitate the grant of cash and equity incentives to directors, employees (including the Company’s named executive officers) and consultants of the Company and its subsidiaries. The 2020 Plan provides for the grant of stock options, including incentive stock options (“ISOs”) and non-qualified stock options (“NSOs”), SARs, restricted stock, dividend equivalents, restricted stock units (“RSUs”) and other stock or cash-based awards.

Stock options and stock appreciation rights under the 2020 Plan have a 10-year contractual term and vest over the vesting period specified in the applicable award agreement, at achievement of a performance requirement, or upon change of control (as defined in the applicable plan). RSUs vest over the vesting period specified in the applicable award agreement, at achievement of a performance requirement, or upon change of control (as defined in the applicable plan). As of March 31, 2025, there were 8,777,657 shares of common stock available for issuance under the 2020 Plan. The number of shares that may be issued under the 2020 Plan automatically increases on January 1 of each year in an amount equal to the lesser of (i) 4.0% of the shares of the Company’s common stock outstanding on December 31 of the preceding year or (ii) an amount determined by the Company’s board of directors.

2017 Stock Incentive Plan

In August 2017, the Company adopted an equity incentive plan (the “2017 Plan”). Under the 2017 Plan, directors, officers, employees, consultants, and advisors of the Company can be paid incentive compensation measured by the value of the Company’s shares of common stock through grants of stock options, stock appreciation rights (“SARs”), or restricted stock. Following the adoption of the 2020 Plan, no further grants have been, or will be, made under the 2017 Plan. However, the 2017 Plan will continue to govern the terms and conditions of outstanding awards granted under it.

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Stock Options

The following table summarizes stock option activity for the three months ended March 31, 2025:


				Weighted-
		Weighted-		Average
		Average		Remaining		Aggregate
	Number of	Exercise		Contractual		Intrinsic
	Awards	Price		Term		Value ($000's)
Awards outstanding—December 31, 2024	7,157,235	$	32.48	6.72
Awards issued	1,037,900	$	37.96
Awards exercised	(184,681)	$	25.48
Awards forfeited	(30,835)	$	31.75
Awards outstanding—March 31, 2025	7,979,619	$	33.36	6.90	$	36,928
Awards exercisable—March 31, 2025	4,670,534	$	32.15	5.84	$	29,531
Awards unvested—March 31, 2025	3,309,085	$	35.06	8.39	$	7,397

The weighted-average grant-date fair value of stock options granted during the three months ended March 31, 2025, was $25.50. The total intrinsic value of stock options exercised for the three months ended March 31, 2025, was $2,157.

Stock Appreciation Rights

The following table summarizes SARs activity for the three months ended March 31, 2025:


				Weighted-
		Weighted-		Average
		Average		Remaining		Aggregate
	Number of	Exercise		Contractual		Intrinsic
	Awards	Price		Term		Value ($000's)
Awards outstanding—December 31, 2024	43,208	$	9.38	4.32
Awards issued	—	$	—
Awards exercised	—	$	—
Awards forfeited	—	$	—
Awards outstanding—March 31, 2025	43,208	$	9.38	4.08	$	681
Awards exercisable—March 31, 2025	41,382	$	9.19	4.02	$	665

Restricted Stock Units

The following table summarizes RSU activity for the three months ended March 31, 2025:



		Weighted-
		Average
	Number of	Grant Date
	Awards	Fair Value
Awards outstanding—December 31, 2024	638,900	$	30.90
Awards issued	428,650	$	38.25
Awards vested	(121,521)	$	30.46
Awards forfeited	(1,777)	$	30.69
Awards outstanding—March 31, 2025	944,252	$	34.24

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Value of RSUs

The fair value of RSUs is equal to the value of the Company’s common stock on the grant date.

The weighted-average per share fair value of awards issued under the 2020 Plan during the three months ended March 31, 2025, and 2024 was $38.25 and $30.69, respectively.

Value of Stock Options and SARs

The Company values options and SARs using the Black-Scholes option-pricing model. The Company lacks sufficient historical company-specific volatility information. Therefore, the Company estimates expected stock volatility based on historical volatility of peer companies and expects to continue to do so until such time as it has adequate historical data regarding the volatility of its own traded stock price. For options with service-based vesting conditions, the expected term of the Company’s stock options has been determined utilizing the “simplified” method for awards that qualify as “plain-vanilla” options. For SARs, the expected term is based upon the weighting of certain future events. The risk-free interest rate is determined by reference to the U.S. Treasury yield curve in effect at the time of grant of the award for the time periods approximately equal to the expected term of the award. An expected dividend yield of 0% is based on the fact that the Company has never paid cash dividends and does not expect to do so in the foreseeable future.

The assumptions used to value the awards are summarized in the following table.


	As of
	March 31, 2025		December 31, 2024
Dividend yield	0.00	%	0.00	%
Expected volatility	70.01 - 71.43	%	69.84 - 72.98	%
Risk-free interest rate	3.96 - 4.44	%	3.51 - 4.65	%
Lack of marketability discount	0.00	%	0.00	%
Expected term (years)	1.70 - 6.11		1.81 - 6.11

Stock-Based Compensation Expense

Stock-based compensation expense for the three months ended March 31, 2025, and 2024, was recorded in the unaudited condensed consolidated statements of operations and comprehensive income in the following line items:


	Three Months Ended March 31,
	2025		2024
Research and development expense	$	2,302	$	1,371
Sales and marketing expense		2,744		1,994
General and administrative expense		7,404		7,069
	$	12,450	$	10,434

Stock-based compensation expense related to options and RSUs issued under the 2017 Plan and 2020 Plan is included in stockholder’s equity, and a liability for SARs is included in other non-current liabilities, in the Company’s unaudited condensed consolidated balance sheet. As of March 31, 2025, the total unrecognized stock-based compensation expense was $66,056 and $29,617 for stock options and RSUs,

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respectively. These amounts will be recognized in the Company’s consolidated statement of operations over a weighted average period of 2.69 years and 3.17 years for stock options and RSUs, respectively.

Employee Stock Purchase Plan

The 2020 Employee Stock Purchase Plan (“ESPP”) was adopted by the Company’s Board of Directors on April 30, 2021. The ESPP permits eligible employees to purchase shares of the Company’s common stock at a 15% discount from the lesser of the fair market value per share of the Company’s common stock on the first day of the offering period or the fair market value of the Company’s common stock on the purchase date. Funds are collected from employees through after-tax payroll deductions. The total number of shares reserved for issuance under the ESPP was initially 629,805, which automatically increases on January 1 of each year in an amount equal to the lesser of (i) 1.0% of the shares of the Company’s common stock outstanding on December 31 of the preceding year or (ii) an amount determined by the Company’s board of directors. It is intended that the ESPP meet the requirements for an “employee stock purchase plan” under Section 423 of the Internal Revenue Code. There were no shares issued under the ESPP for the three months ended March 31, 2025, and 2024, respectively. The discount on the ESPP was $60 and $80 for the three months ended March 31, 2025, and 2024, respectively, and is recorded within stock-based compensation expense.

16. SEGMENT INFORMATION

The Company has one reportable segment: rare neurological diseases. The rare neurological diseases segment consists of the Company’s commercial product, WAKIX, and its potential product candidates, that focus on patients living with rare neurological diseases who have unmet needs. The Company currently derives all of its revenue from sales of WAKIX, which is used in the treatment of EDS and cataplexy in adult patients with narcolepsy and the treatment of EDS in pediatric patients six years and older with narcolepsy and manages its business activities on a consolidated basis.

The accounting policies of the rare neurological diseases segment are consistent with those described in Note 3, Summary of Significant Accounting Policies, and the measure of segment assets is reported on the consolidated balance sheets as total assets. The Company’s CODM is the chief executive officer. The CODM assesses performance of the rare neurological diseases segment using net income as reported in the consolidated statements of operations and comprehensive income. Net income is assessed by the CODM to make decisions on how to allocate resources, such as reinvesting profits into the rare neurological diseases segment or pursuing potential investing activities.

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The following table summarizes segment revenue and significant segment expenses for the three months ended March 31, 2025, and 2024:


	Rare Neurological Diseases Segment
	Three Months Ended March 31,
	2025		2024
Net product revenue	$	184,733	$	154,615
Less:
Cost of product sold (excluding depreciation)		31,987		27,477
Research and development (excluding stock compensation)		32,238		20,818
Sales and marketing (excluding stock compensation)		27,967		25,239
General and administrative (excluding stock compensation and amortization)		17,878		12,490
Depreciation and amortization		5,968		6,124
Stock-based compensation		12,450		10,434
Interest expense		3,836		4,535
Interest income		(5,044)		(4,428)
Income tax expense (benefit)		11,617		13,451
Other segment items (a)		276		141
Consolidated net income	$	45,560	$	38,334

(a)

Other segment items includes other expense, net.

17. EARNINGS PER SHARE

Basic earnings per share is calculated by dividing net income by the weighted average number of shares of common stock outstanding. Diluted net income per share of common is computed under the treasury stock method by using the weighted average number of shares of common stock outstanding, plus, for periods with net income, the potential dilutive effects of stock options, stock appreciation rights and restricted stock units.

The following table sets forth the computation of basic and diluted net income per share:


	Three Months Ended March 31,
	2025		2024
Numerator
Net income	$	45,560	$	38,334
Denominator
Net income per share of common stock - basic	$	0.79	$	0.68
Net income per share of common stock- diluted	$	0.78	$	0.67
Weighted average number of shares of common stock - basic		57,309,938		56,771,251
Weighted average number of shares of common stock - diluted		58,524,566		57,597,627

Securities outstanding and included in the computation above, utilizing the treasury stock method are as follows:

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Potential shares of common stock that were excluded from the computation of diluted weighted-average shares outstanding excluded from the numerator, are as follows:


	Three Months Ended March 31,
	2025		2024
Stock options, SARs, and RSUs to purchase common stock		7,752,451		7,281,505

18. INCOME TAXES

A reconciliation between the statutory federal income tax rate and the Company’s effective income tax rate for the three months ended March 31, 2025, and 2024 is as follows:


	Three Months Ended March 31,
	2025		2024
Federal income tax rate	21.0	%	21.0	%
Stock-based compensation	0.4		—
State taxes	1.1		5.1
Credits	(2.4)		(1.0)
Valuation allowance	—		0.5
Other	0.2		0.4
Total	20.3	%	26.0	%

19. RELATED-PARTY TRANSACTIONS

The Company is a party to a right of use agreement with Paragon Biosciences, LLC (“Paragon”) whereby it has access to and the right to use certain office space leased by Paragon in Chicago, IL. Paragon is an entity that shares common ownership with the Company. In addition, the Chairman of the Company’s board of directors is the Founder, Chairman and CEO of Paragon. The Company incurred $73 for each of the three months ended March 31, 2025, and 2024, in expenses to Paragon, which are included in general and administrative in the unaudited condensed consolidated statements of operations and comprehensive loss. As of March 31, 2025, and December 31, 2024, there were no amounts due to or due from related parties included in the unaudited condensed consolidated balance sheets.

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

Cautionary Note Regarding Forward-Looking Statements

This Quarterly Report on Form 10-Q contains forward-looking statements. We intend such forward-looking statements to be covered by the safe harbor provisions for forward-looking statements contained in Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). All statements other than statements of historical facts contained in this Quarterly Report on Form 10-Q, including statements regarding our future results of operations and financial position, business strategy, products, prospective products, product approvals, research and development costs, anticipated timing and likelihood of success of clinical trials, expected timing of the release of clinical trial data, the plans and objectives of management for future operations and future results of anticipated products, are forward-looking statements. These statements involve known and unknown risks, uncertainties and other important factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the

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forward-looking statements. Important factors that could cause such differences include, but are not limited to, statements about:

●

our commercialization efforts and strategy for WAKIX;

●

the rate and degree of market acceptance and clinical utility of pitolisant in additional indications, if approved, and any other product candidates we may develop or acquire, if approved;

●

our research and development plans, including our plans to explore the therapeutic potential of pitolisant in additional indications, progress developing the new Pitolisant Gastro-resistant (“Pitolisant GR”) and Pitolisant High Dose (“Pitolisant HD”) formulations, and the development of ZYN002, clemizole hydrochloride (“EPX-100”) and other compounds;

●

our ongoing and planned clinical trials;

●

the availability of favorable insurance coverage and reimbursement for WAKIX;

●

the timing of, and our ability to obtain, regulatory approvals for pitolisant for other indications as well as any other product candidates;

●

our estimates regarding expenses, future revenue, capital requirements and additional financing needs;

●

our ability to identify, acquire and integrate additional products or product candidates with significant commercial potential that are consistent with our commercial objectives;

●

our commercialization, marketing and manufacturing capabilities and strategy;

●

significant competition in our industry;

●

our intellectual property position;

●

loss or retirement of key members of management;

●

failure to successfully execute our growth strategy, including any delays in our planned future growth;

●

our failure to maintain effective internal controls; and

●

the impact of government laws and regulations.

In some cases, you can identify forward-looking statements by terms such as “may,” “will,” “should,” “expect,” “plan,” “anticipate,” “could,” “intend,” “target,” “project,” “contemplate,” “believe,” “estimate,” “predict,” “potential”, or “continue” or the negative of these terms or other similar expressions. The forward-looking statements in this Quarterly Report on Form 10-Q are only predictions. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our business, financial condition and results of operations. These forward-looking statements speak only as of the date of this Quarterly Report on Form 10-Q and are subject to a number of important factors that could cause actual results to differ materially from those in the forward-looking statements, including the factors described under the section in our most recent Annual Report on Form 10-K entitled “Item 1A. Risk Factors” and the sections in this Quarterly Report on Form 10-Q titled “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations.”

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Moreover, we operate in an evolving environment. New risk factors and uncertainties may emerge from time to time, and it is not possible for management to predict all risk factors and uncertainties.

Unless otherwise indicated, information contained in this Quarterly Report on Form 10-Q concerning our industry, including industry statistics and forecasts, competitive position and the markets in which we operate is based on information from independent industry and research organizations, other third-party sources and management estimates. Management estimates are derived from publicly available information released by independent industry analysts and other third-party sources, as well as data from our internal research, and are based on assumptions made by us upon reviewing such data, and our experience in, and knowledge of, such industry and markets, which we believe to be reasonable. In addition, projections, forecasts, assumptions and estimates of the future performance of the industry in which we operate and our future performance are necessarily subject to uncertainty and risk due to a variety of factors, including those described in “Risk Factors” and “Cautionary Note Regarding Forward-Looking Statements.” These and other factors could cause results to differ materially from those expressed and forecasts in the estimates made by the independent parties and by us.

You should read this Quarterly Report on Form 10-Q and the documents that we reference in this Quarterly Report on Form 10-Q completely and with the understanding that our actual future results may be materially different from what we expect. We qualify all of our forward-looking statements by these cautionary statements. Except as required by applicable law, we do not plan to publicly update or revise any forward-looking statements contained herein, whether as a result of any new information, future events, changed circumstances or otherwise.

As used herein, the terms “Harmony,” “we,” “us,” “our” and “the Company” refer to Harmony Biosciences Holdings, Inc., a Delaware corporation and our operating subsidiary, Harmony Biosciences, LLC.

Further, we have in-licensed from Bioprojet Société Civile de Recherche (“Bioprojet”) the registered trademark product name WAKIX® in the United States. We also have registered trademark protection in the United States for KNOW NARCOLEPSY®, REM AT THE WRONG TIME® and NON-REM AT THE WRONG TIME®, as well as our brand and logo HB®, HB HARMONY BIOSCIENCES® and HARMONY BIOSCIENCES®. This report also includes trademarks, service marks and trade names of other companies. Trademarks, service marks and trade names appearing in this Quarterly Report on Form 10-Q are the property of their respective owners.

Company Overview

At Harmony, we are cultivating a differentiated neuroscience company, rooted in innovation and driven by a commitment to addressing the unmet needs of patients living with neurological diseases. To date, we have focused on rare neurological diseases with a growing portfolio now spanning sleep/wake, neurobehavioral, and rare epilepsy, and we are harnessing scientific insights and pioneering approaches to advance meaningful treatments that help patients thrive.

Sleep/Wake Franchise

Pitolisant was developed by Bioprojet and approved by the EMA in 2016 for the treatment of narcolepsy in adult patients with or without cataplexy and in 2021 for the treatment of EDS in adult patients with obstructive sleep apnea. We acquired an exclusive license to develop, manufacture and commercialize pitolisant in the United States pursuant to our license agreement with Bioprojet (as amended, the “2017 LCA”) in July 2017. Pitolisant was granted Orphan Drug designation for the treatment of narcolepsy by the FDA in 2010. It received Breakthrough Therapy designation for the treatment of cataplexy in patients with narcolepsy and Fast Track designation for the treatment of EDS and cataplexy in patients with narcolepsy in April 2018. In August 2019, WAKIX was approved by the U.S. Food and Drug Administration (the “FDA”) for the treatment of EDS in adult patients with narcolepsy, and its U.S. commercial launch was initiated in November 2019. In October 2020, WAKIX was approved by the FDA for the treatment of cataplexy in adult patients with narcolepsy.

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We believe that pitolisant’s ability to regulate histamine mediated through histamine-3 receptor antagonist and inverse agonist activity gives it the potential to provide therapeutic benefit in other rare neurological diseases.

We are focusing our development efforts on other rare neurological disorders in which EDS is a prominent symptom, including Prader-Willi Syndrome (“PWS”) and myotonic dystrophy type 1, otherwise known as dystrophia myotonica (“DM1”). Based on the positive signals from the data from our Phase 2 proof-of-concept signal detection clinical trial to evaluate pitolisant for the treatment of EDS and other key behavioral symptoms in patients with PWS, an End-of-Phase 2 meeting with the FDA was held in June 2023. We aligned with the FDA on the proposed Phase 3 registration study design to support further investigation of pitolisant as a potential treatment to address the unmet medical need for children, adolescents and adults with PWS experiencing EDS, for which there is currently no approved treatment. In October 2023, we received FDA alignment regarding the study design for the Phase 3 TEMPO study in patients with PWS, which has the potential to serve as the registrational trial and also support our efforts to seek pediatric exclusivity for pitolisant. In February 2024, the FDA granted Orphan Drug designation to pitolisant for the treatment of PWS. The Phase 3 registrational trial, the TEMPO study, was initiated in the first quarter of 2024. In June 2021, we initiated a Phase 2 proof-of-concept signal detection clinical trial to evaluate pitolisant for the treatment of EDS, fatigue and cognitive dysfunction in adult patients with DM1 and announced topline results from this trial in the fourth quarter of 2023, in which clinically meaningful improvements were demonstrated in EDS and fatigue, the two most prominent non-muscular symptoms in patients with DM1. The safety and tolerability profile of pitolisant in adult patients with DM1 was consistent with the established safety and tolerability profile of pitolisant with no new safety signals detected and no serious adverse events reported.

Our partner, Bioprojet completed a Phase 3 trial in pediatric patients with narcolepsy and submitted the trial data to the European Medicines Agency (the “EMA”) seeking approval for a pediatric narcolepsy indication. In January 2023, Bioprojet received a positive opinion from the EMA’s Committee for Medicinal Products for Human Use (“CHMP”) and in March 2023, the EMA granted approval for the marketing authorization of WAKIX for the treatment of narcolepsy with or without cataplexy in children six and older. Based on the data from the positive Phase 3 trial conducted by Bioprojet, we submitted an sNDA for pediatric narcolepsy in December 2023. In June 2024, we announced that the FDA approved our sNDA for WAKIX for the treatment of EDS in pediatric patients six years of age and older with narcolepsy. In addition, in June 2024, the FDA did not approve our sNDA seeking to expand the WAKIX label for the treatment of pediatric patients with cataplexy. In October 2024, we held a Type A meeting with the FDA to discuss the pediatric cataplexy indication and reached alignment on a path to sNDA resubmission, which is planned for the second quarter of 2025.

We remain committed to obtaining pediatric exclusivity for WAKIX. We believe the initiation of the PWS Phase 3 registrational trial, the TEMPO study, and our current data in pediatric narcolepsy, which resulted in the FDA’s approval of WAKIX in its current pediatric indication, are supportive of our efforts in obtaining pediatric exclusivity for WAKIX.

We are expanding our pipeline through the acquisition of additional assets that focus on addressing the unmet needs of patients living with rare neurological diseases as well as patients living with other neurological diseases who have unmet medical needs. We are targeting assets that will allow us to further leverage the expertise and infrastructure that we have successfully built at Harmony so we can optimize the benefit of internal synergies. Consistent with this objective, in July 2022, we entered into a License and Commercialization Agreement (the “2022 LCA”) with Bioprojet whereby we obtained exclusive rights to manufacture, develop and commercialize one or more new products based on pitolisant in the United States and Latin America, with the potential to add additional indications and formulations upon the agreement of both parties. We have made progress in the development of two new formulations of pitolisant: Pitolisant GR and Pitolisant HD. Both formulations entered clinical studies in the fourth quarter of 2023. We received data from the Pitolisant GR pilot bioequivalence study, which supports further development of Pitolisant GR. We initiated the pivotal bioequivalence study in the first quarter of 2025 and anticipate the topline data readout in the third quarter of 2025. Our anticipated PDUFA date for Pitolisant GR is in 2026. We received data from the Pitolisant HD pilot pharmacokinetics study in June 2024, which also supports advancing this development program toward pivotal trials. Preparations are ongoing to initiate Phase 3 registrational trials in narcolepsy and

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idiopathic hypersomnia (“IH”) in the fourth quarter of 2025. Our anticipated PDUFA date for the Pitolisant HD narcolepsy and IH programs is in 2028. A phase 1b study was conducted to evaluate the safety and tolerability of pitolisant at repeat doses of up to 180mg and the initial results are consistent with the known safety profile of pitolisant and support advancement of the Pitolisant HD development program. Utility patents have been filed for Pitolisant GR and Pitolisant HD, with the potential for patent protection to the mid-2040’s.

In April 2024, we entered into a sublicense agreement with Bioprojet for an orexin-2 receptor agonist (OX2R) (“BP1.15205”) to be evaluated for the treatment of narcolepsy and other potential indications (the “Sublicense”). Under the Sublicense, we have obtained the exclusive right to develop, manufacture and commercialize BP1.15205 in the United States and Latin American territories, which are rights that Bioprojet originally licensed from Teijin Pharma, the innovator of BP1.15205. We believe the pre-clinical data from BP1.15205 is promising and we plan to file an investigational medicinal product dossier (“IMPD”) with the EMA in mid-2025 and begin first-in-human studies in the second half of 2025.

In August 2021, we acquired HBS-102, a Melanin-concentrating hormone receptor type 1 (MCHR1) antagonist previously developed as CSTI-100/ALB-127258(a)/ALB-127258 (the “Compound”), along with intellectual property and other assets related to the development, manufacture, and commercialization of the Compound from ConSynance Therapeutics, Inc. We acquired full development and commercialization rights for HBS-102 globally, but we have provided an indication-limited grant-back license to ConSynance for the development and commercialization of the Compound in Greater China. We conducted a preclinical PoC study to assess the effect of HBS-102 on hyperphagia, weight gain and other metabolic parameters in a mouse model of PWS. The final report was received during the third quarter of 2024 and the results are consistent with the expected results. In addition, a 13-week toxicology study has been completed, and the preliminary results are encouraging.

Neurobehavioral Franchise

In October 2023, we acquired Zynerba Pharmaceuticals, Inc. (“Zynerba”), adding global rights to develop, manufacture and commercialize ZYN002, which is a pharmaceutically manufactured 100% synthetic, patent protected permeation enhanced cannabidiol gel for transdermal delivery. Transdermal delivery is thought to provide better gastrointestinal tolerability and minimize the potential for drug interactions or impacts on liver function tests by avoiding first-pass metabolism in the liver. The most common adverse effect observed in clinical studies has been application site pain, which has occurred in less than 7% of patients. ZYN002 is currently in a Phase 3 registrational trial, the RECONNECT study, for the treatment of Fragile X Syndrome (“FXS”), which was designed to confirm the positive findings from the prespecified analysis of the primary outcome in the subgroup of patients with complete methylation from the CONNECT study conducted by Zynerba. We believe the total addressable market for ZYN002 among patients with FXS is approximately 25,000 people based on an estimated current FXS prevalence of up to 87,000 cases and up to 40,000 diagnosed FXS cases. We have completed recruitment in our ZYN002 Phase 3 registrational trial and topline data is on track for the third quarter of 2025. ZYN002 has patent protection for the treatment of FXS until 2038. Based on the positive proof-of-concept (“PoC”) study data obtained by Zynerba in 22q deletion syndrome, another rare disorder with prominent neurobehavioral symptoms, we plan to initiate a Phase 3 registrational study in 2025 in 22q deletion syndrome, pending positive data from the REFCONNECT study.

Rare Epilepsy Franchise

In April 2024, we acquired all of the outstanding capital stock of Epygenix Therapeutics, Inc. (“Epygenix”), pursuant to the terms of a stock purchase agreement (the “Epygenix Agreement”). As a result, we now have an exclusive license relating to the use of EPX-100 for the treatment of Dravet Syndrome (“DS”), Lennox-Gastaut Syndrome (“LGS”) and other developmental and epileptic encephalopathies (“DEEs”). Patients with both conditions often encounter severe refractory epilepsy and extreme co-morbidities or mortality without effective treatments, even with polypharmacy. As such, there is a recognized need for improved treatment options for both conditions. We believe the total addressable market for EPX-100 among patients with DS is approximately 5,000 people based on an estimated current DS prevalence of approximately 8,600 cases and

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approximately 7,000 diagnosed DS cases. We believe the total addressable market for EPX-100 among patients with LGS is approximately 35,000 people based on an estimated current LGS prevalence of approximately 48,000 cases and 44,000 diagnosed LGS cases. EPX-100 has been granted orphan drug designation and rare pediatric disease designation by the FDA for treatment of both DS and LGS. EPX-100 is currently in a Phase 3 registrational clinical trial for DS and we initiated a Phase 3 registrational clinical trial in patients with LGS in the fourth quarter of 2024.

Additionally, we are currently developing a liquid formulation of lorcaserin for the treatment of DEEs (“EPX-200”), another asset acquired pursuant to the terms of the Epygenix Agreement. EPX-200 is currently in the pre-IND phase.

Our operations are conducted by our wholly owned subsidiaries, Harmony Biosciences, LLC and Harmony Biosciences Management, Inc.

Commercial Performance Metrics

As of March 31, 2025, we continued to see growth in the number of unique healthcare professional (“HCP”) prescribers of WAKIX since it became available in November 2019. There are approximately 9,000 HCPs who treat patients living with narcolepsy, with approximately 4,000 enrolled in oxybate risk-evaluation and mitigation strategies (“REMS”) and approximately 5,000 HCPs who do not participate in the oxybate REMS programs. The average number of patients on WAKIX for the three months ended March 31, 2025, was approximately 7,200, with approximately 7,300 patients on WAKIX as of March 31, 2025. Additionally, as of March 31, 2025, we have secured formulary access for more than 80% of all insured lives (Commercial, Medicare and Medicaid) in the United States.

Financial Operations Overview

Net Product Revenue

Net product revenue includes gross product shipments less provisions for sales discounts and allowances, which includes trade allowances, rebates to government and commercial entities, and other discounts. Although we expect net sales to increase over time, provisions for sales discounts and allowances may fluctuate based on the mix of sales to different patient segments and/or changes in our estimates.

Cost of Product Sales

Cost of product sales includes manufacturing and distribution costs, the cost of API, FDA program fees, royalties due to third parties on net product sales, freight, shipping, handling, storage costs, depreciation and salaries of employees involved with oversight of production. We expect the cost of product sales to increase as we continue to ramp up production in order to meet future demand for WAKIX and diversify our supply chain for WAKIX.

The shelf life of WAKIX is four years from the date of manufacture, with the earliest expiration of current inventory expected to be January 2027. We regularly review our inventory levels and expect write-offs from time to time. We will continue to assess inventory levels in future periods as demand for WAKIX and the rate of inventory turnover evolves. We currently have adequate supply of WAKIX to cover demand into the first quarter of 2027, with additional API on-hand inventory to support at least two years beyond this time frame.

Research and Development Expenses

Research and development expenses primarily include development programs for potential new indications for pitolisant in patients with PWS and DM1 and the development of our product candidates ZYN002, EPX-100, EPX-200 Pitolisant GR, Pitolisant HD, BP1.15205 and HBS-102. We also incur research and development expenses related to our team of Medical Science Liaisons (“MSLs”) who interact with key opinion

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leaders, with a focus on the science, the role of histamine in sleep-wake state stability and the novel mechanism of action of pitolisant. In addition, our MSLs support our market access team with the presentation of clinical data to payors upon request and our clinical development team to identify potential clinical trial sites. Research and development costs are expensed as incurred. We have significantly increased our research and development efforts as we advance our clinical programs and add product candidates to expand our pipeline. Research and development expenses also include:

●

employee-related expenses, such as salaries, share-based compensation, benefits and travel expenses for our research and development personnel;

●

direct third-party costs such as expenses incurred under agreements with clinical research organizations (“CROs”), and contract development and manufacturing organizations (“CDMOs”);

●

manufacturing costs in connection with producing materials for use in conducting clinical trials;

●

costs related to packaging and labelling of clinical supplies;

●

other third-party expenses (e.g., consultants, advisors) directly attributable to the development of our product candidates;

●

acquired in-process research and development; and

●

amortization expense for assets used in research and development activities.

A significant portion of our research and development costs are external costs, such as fees paid to CROs and CDMOs, central laboratories, contractors, and consultants in connection with our clinical development programs. Internal expenses primarily relate to personnel who are deployed across multiple programs.

Product candidates in later stages of clinical development generally have higher development costs in the current period than those in earlier stages of clinical development, primarily due to the increased size and duration of later-stage clinical trials, milestone payments, and the cost of submitting an NDA to the FDA (and/or other regulatory authorities). We expect our research and development expenses to be significant as we advance our current clinical development programs and prepare to seek regulatory approval for additional indications for pitolisant, complete the Phase 3 clinical trials for ZYN002, EPX-100 and advance the development of Pitolisant GR, Pitolisant HD, BP1.15205 and HBS-102 toward new indications.

At this time, we cannot reasonably estimate or know the nature, timing and estimated costs of the efforts that will be necessary to complete the development of any additional indications for pitolisant or other product candidates that we move forward for regulatory approval. There are numerous risks and uncertainties associated with developing product candidates, including uncertainty related to:

●

the duration, costs and timing of clinical trials of our current development programs and any further clinical trials related to new product candidates;

●

the sufficiency of our financial and other resources to complete the necessary preclinical studies and clinical trials;

●

the acceptance of INDs for our planned clinical trials or future clinical trials;

●

the successful and timely enrollment and completion of clinical trials;

●

the successful completion of preclinical studies and clinical trials;

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●

successful data from our clinical programs that support an acceptable risk-benefit profile of our product candidates in the intended populations;

●

the receipt and maintenance of regulatory and marketing approvals from applicable regulatory authorities;

●

establishing agreements with third-party manufacturers for clinical supply for our clinical trials and commercial manufacturing, if our product candidate is approved;

●

the entry into collaborations to further the development of our product candidates;

●

obtaining and maintaining patent and trade secret protection or regulatory exclusivity for our product candidates; and

●

successfully launching our product candidates and achieving commercial sales, if and when approved.

A change in the outcome of any of these variables with respect to the development of any of our programs or any product candidate we develop would significantly change the costs, timing and viability associated with the development and/or regulatory approval of such programs or product candidates.

Sales and Marketing Expenses

Our sales and marketing expenses primarily relate to the market development and commercialization activities of WAKIX for the treatment of EDS and cataplexy in adult patients with narcolepsy. Market development and commercial activities account for a significant portion of our operating expenses and are expensed as incurred. We expect our sales and marketing expenses to increase in the near- and mid-term to support WAKIX’s indications for the treatment of EDS or cataplexy in adult patients with narcolepsy, the treatment of EDS in pediatric patients 6 years of age and older with narcolepsy and to expand our portfolio with the anticipated growth from potential additional indications.

Sales and marketing expenses include:

●

employee-related expenses, such as salaries, share-based compensation, benefits and travel expenses for our sales, marketing and market access personnel;

●

healthcare professional-related expenses, including marketing programs, healthcare professional promotional medical education, disease education, conference exhibits and market research;

●

patient-related expenses, including patient awareness and education programs, disease awareness education, patient reimbursement programs, patient support services and market research;

●

market access expenses, including payor education, specialty pharmacy programs and services to support the continued commercialization of WAKIX; and

●

secondary data purchases (i.e., patient claims and prescription data), data warehouse development and data management.

In addition, sales and marketing expenses include external costs such as website development, media placement fees, agency fees for patient, medical education and promotional expenses, market research, analysis of secondary data, conference fees and consulting fees.

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General and Administrative Expenses

General and administrative expenses consist primarily of employee-related expenses, such as salaries, share-based compensation, benefits and travel expenses for our personnel in executive, legal, finance and accounting, human resources, investor relations, and other administrative departments. General and administrative expenses also consist of office leases, and professional fees, including legal, tax and accounting, insurance and consulting fees.

We anticipate that our general and administrative expenses will increase in the future to support our continued commercialization efforts, ongoing and future potential research and development activities, and increased costs of operating as a public company. These increases will likely be driven by costs associated with the hiring of additional personnel and fees paid to outside consultants, lawyers and accountants, among other expenses. Additionally, we anticipate increased costs associated with being a public company, including expenses related to services associated with maintaining compliance with the requirements of Nasdaq and the SEC, insurance and investor relations costs. If any of our current or future indication expansion programs or new product candidates obtain U.S. regulatory approval, we expect that we would incur significantly increased expenses associated with building a sales and marketing team.

Paragon Agreement

We are party to a right-of-use agreement with Paragon Biosciences, LLC (“Paragon”) whereby we have access to and the right to use certain office space leased by Paragon in Chicago, Illinois. For the three months ended March 31, 2025, we paid fees of $0.1 million pursuant to this agreement.

Interest Expense

Interest expense consists primarily of interest expense on debt facilities, amortization of debt issuance costs and amortization of premiums on our debt securities.

Interest Income

Interest income consists primarily of cash interest earned on our cash and investment balances and accretion of the discount on our investments in debt securities.

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Results of Operations

The following table sets forth selected items in our unaudited condensed consolidated statements of operations for the periods presented:


	Three Months Ended March 31,
	2025		2024

	(In thousands)
Net product revenue	$	184,733	$	154,615
Cost of product sales		31,994		27,484
Gross profit		152,739		127,131
Operating expenses:
Research and development		34,540		22,189
Sales and marketing		30,711		27,233
General and administrative		31,243		25,676
Total operating expenses		96,494		75,098
Operating income		56,245		52,033

Other (expense) income, net		(276)		(141)
Interest expense		(3,836)		(4,535)
Interest income		5,044		4,428
Net income before provision for income taxes		57,177		51,785
Income tax expense		(11,617)		(13,451)
Net income	$	45,560	$	38,334

Net Product Revenue

Net product revenue increased by $30.1 million, or 19.5%, for the three months ended March 31, 2025, compared to the same period in 2024. The increase for the three months ended March 31, 2025, was primarily due to a 17% increase in the number of units shipped, and the impact of a 7% price increase partially offset by higher rebates of approximately 4%. The price increase occurred in January 2025.

Cost of Product Sales

Cost of product sales increased by $4.5 million, or 16.4%, for the three months ended March 31, 2025, compared to the same period in 2024. Cost of product sales as a percentage of net product revenue was 17.3% for the three months ended March 31, 2025, compared to 17.8% for the three months ended March 31, 2024. The increase in cost of product sales was primarily due to the increase in sales of WAKIX.

Research and Development Expenses

The following table is a summary of our research and development expenses:


	Three Months Ended March 31,
	2025		2024		Change
	(in thousands)
Pitolisant	$	5,392	$	9,110	$	(3,718)
ZYN002		8,476		3,879		4,597
EPX-100		6,546		-		6,546
Pitolisant GR and Pitolisant HD		1,980		766		1,214
Personnel expenses		7,526		5,383		2,143
Stock-based compensation		2,302		1,371		931
Other research and development		2,318		1,680		638
Total	$	34,540	$	22,189	$	12,351

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Research and development expenses increased by $12.4 million, or 55.7%, for the three months ended March 31, 2025, compared to the same period in 2024. The increase for the three months ended March 31, 2025 was primarily driven by a $6.5 million increase in research and development expenses for the recently acquired product candidate, EPX-100, a combined $5.8 million increase in research and development expenses for ZYN002 and Pitolisant GR and HD as we ramp up development and manufacturing, a $2.1 million increase in personnel costs associated with higher headcount, a $0.9 million increase in stock compensation associated with new awards, and a $0.6 million increase in other research and development, primarily due to preclinical work related to BP1.1520, partially offset by a $3.7 million decrease in clinical development associated with pitolisant, driven by a decrease for the IH indication.

Sales and Marketing Expenses

Sales and marketing expenses increased by $3.5 million, or 12.8%, for the three months ended March 31, 2025, compared to the same period in 2024. The increase for the three months ended March 31, 2025, was primarily due to a $1.9 million increase in patient engagement and marketing activities, a $0.7 million increase in personnel costs and a $0.7 million increase in stock compensation expense. The increase in patient engagement and marketing activities was driven by our continued growth of WAKIX and the increase in personnel costs and stock compensation for the three months ended March 31, 2025, was related to costs associated with the separation of an executive of the Company.

General and Administrative Expenses

General and administrative expenses increased by $5.6 million, or 21.7%, for the three months ended March 31, 2025, compared to the same period in 2024. The increase in the three months ended March 31, 2025, was primarily due to a $4.5 million increase in legal and professional fees, primarily associated with patent lawsuits, a $0.4 million increase in stock compensation associated with new awards, and a $0.7 million increase in personnel costs associated with higher headcount.

Interest Expense

Interest expense decreased by $0.7 million, or 15.4%, for the three months ended March 31, 2025, compared to the same period in 2024. The decrease for the three months ended March 31, 2025, was primarily due to lower interest rates as a result of the reduction of the Term SOFR.

Interest Income

Interest income increased by $0.6 million, or 13.9%, for the three months ended March 31, 2025, compared to the same period in 2024. The increase for the three months ended March 31, 2025, was primarily a result of having higher invested balances compared to the prior year.

Income Taxes

Income tax expense was $11.6 million, representing a 20.3% effective tax rate, for the three months ended March 31, 2025, compared to $13.5 million, representing a 26.0% effective tax rate, for the three months ended March 31, 2024. The decrease in our effective tax rate for the three months ended March 31, 2025, was primarily driven by an increase in the benefits from research and development and orphan drug credits and a decrease in state taxes. The effective tax rate of 20.3% for the three months ended March 31, 2025, included 1.1% in state income taxes, partially offset by a 2.4% benefit from credits.

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Liquidity, Sources of Funding and Capital Resources

Overview

As of March 31, 2025, we had cash, cash equivalents, and investments of $610.2 million, outstanding debt of $177.5 million and retained earnings of $47.8 million.

The unaudited condensed consolidated financial statements have been prepared as though we will continue as a going concern, which contemplates the realization of assets and satisfaction of liabilities in the normal course of business.

We believe that our existing cash, cash equivalents and investments on hand as of March 31, 2025, will enable us to meet our operational liquidity needs and fund our potential investing activities for the next 12 months. We have based our liquidity and cash flow projections on assumptions that may prove to be incorrect, and we could use our capital resources sooner than we expect.

Term Loan A Credit Agreement

In July 2023, we entered into a Credit Agreement (the “TLA Credit Agreement”) with JPMorgan Chase Bank, N.A., as “Administrative Agent”, and certain lenders, which was subsequently amended in September 2023. The TLA Credit Agreement, as amended, provides for a five-year senior secured term loan (the “TLA Term Loan”) in an aggregate principal amount of $200.0 million.

The repayment schedule for the TLA Term Loan consists of $3.8 million quarterly principal payments, which commence on December 31, 2023, increasing to $5.0 million quarterly principal payments beginning on December 31, 2025, with a $115.0 million payment due on the maturity date of July 26, 2028. The TLA Term Loan bears interest at a per annum rate equal to, at our option, (i) a base rate plus a specified margin ranging from 2.50% to 3.00%, based on our senior secured net leverage ratio (as defined in the TLA Credit Agreement) or (ii) Term SOFR plus a credit spread adjustment of 0.10% plus a specified margin ranging from 3.50% to 4.00%, based on our senior secured net leverage ratio.

The TLA Credit Agreement contains customary affirmative and negative covenants, financial covenants, representations and warranties, events of default and other provisions. We were in compliance with all covenants as of March 31, 2025.

Share Repurchases

In October 2023, our Board of Directors approved a share repurchase program (the “October 2023 Repurchase Program”) providing for the repurchase of shares of common stock in an aggregate amount of up to $200,000, excluding commissions and transaction fees. The October 2023 Repurchase Program may be suspended, terminated, or modified at any time for any reason. During the three months ended March 31, 2025, no shares of common stock were repurchased and cancelled by the Company under the October 2023 Repurchase Program. As of March 31, 2025, the remaining amount of common stock authorized for repurchases was $150.0 million.

Epygenix Acquisition

In April 2024, we acquired all of the outstanding capital stock of Epygenix, pursuant to the terms of a stock purchase agreement. In connection with the closing of the transaction, we paid the former stockholders of Epygenix up front consideration of $35.0 million less a working capital adjustment. In addition, we will also be obligated to pay up to $130.0 million upon the achievement of development and regulatory milestones and up to $515.0 million upon the achievement of certain sales-based milestones, in each case to Epygenix’s former stockholders. As a result, the Company now has an exclusive license relating to the use of clemizole, initially for the treatment of DS and LGS.

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ConSynance Agreement

In August 2021, we entered into an asset purchase agreement with ConSynance Therapeutics, Inc. (the “APA”) to acquire HBS-102, a potential first-in-class molecule with a novel mechanism of action. Under the terms of the APA, we acquired full development and commercialization rights globally, with the exception of Greater China, for $3.5 million. In March 2023, we achieved a preclinical milestone, which triggered a $0.8 million payment under the provisions of the APA, which we recognized as an IPR&D charge recorded in research and development within the consolidated statement of operations and comprehensive income for the year ended December 31, 2023. In September 2024, we achieved a milestone for preclinical proof-of concept, which triggered a $1.0 million payment under the provisions of the APA, which we recognized as an IPR&D charge recorded in research and development within the consolidated statement of operations and comprehensive income for the year ended December 31, 2024. There are additional payments due upon the achievement of certain milestones, including $19.0 million for development milestones, $44.0 million for regulatory milestones and $110.0 million for sales milestones.

Bioprojet Agreements

In April 2024, we entered into a sublicense agreement with Bioprojet for an orexin-2 receptor agonist (OX2R) (the “Licensed Compound”) to be evaluated for the treatment of narcolepsy and other potential indications (the “Sublicense”). Under the Sublicense, the Company obtained the exclusive right to develop, manufacture and commercialize the Licensed Compound in the United States and Latin American territories (the “Licensed Territories”), which are rights that Bioprojet originally licensed from Teijin Pharma, the innovator of the Licensed Compound. The Licensed Compound is currently in pre-clinical development with a Clinical Trial Application currently anticipated in mid-2025. Under the Sublicense, the Company paid Bioprojet an upfront license fee of $25.5 million and will also be obligated to pay up to $127.5 million upon achievement of development and regulatory milestones and up to $240.0 million upon achievement of sales-based milestones, as well as royalty rates in the mid-teens on potential sales in the Licensed Territories.

In July 2022, we entered into the 2022 LCA with Bioprojet whereby we obtained exclusive rights to manufacture, develop and commercialize one or more new products based on pitolisant in the United States and Latin America, with the potential to add additional indications and formulations upon the agreement of both parties. We paid an initial, non-refundable $30.0 million licensing fee in October 2022 and additional payments of up to $155.0 million are potentially due under the 2022 LCA upon the achievement of certain future development and sales-based milestones. In addition, certain payments will become due upon the achievement of development milestones for new indications and formulations as agreed upon by both parties. The 2022 LCA also includes a fixed trademark royalty and a tiered royalty based on net sales of any new products commercialized, which will be payable to Bioprojet on a quarterly basis.

Recent Milestones

In September 2024, we achieved a preclinical milestone, which triggered a $1.0 million payment under the provisions of the APA, which was paid in October 2024.

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Cash Flows

The following table sets forth a summary of our cash flows for the three months ended March 31, 2025, and 2024:


	Three Months Ended March 31,
	2025		2024

Selected cash flow data	(In thousands)
Cash provided by (used in):
Operating activities	$	33,987	$	31,141
Investing activities		2,362		(6,186)
Financing activities		(352)		(3,634)

Operating Activities

Net cash provided by operating activities for the three ended March 31, 2025, primarily consisted of net income of $45.6 million adjusted for non-cash items of $12.5 million related to stock-based compensation expense, and $6.0 million related to intangible amortization and depreciation, offset by $4.3 million related to deferred tax assets. Net working capital excluding cash increased by $25.9 million, primarily driven by increases in accounts receivable due to higher net product revenue in the current period and increases in accounts payable due to the timing of payments.

Investing Activities

Net cash provided by investing activities for the three months ended March 31, 2025, was $2.4 million, which was primarily attributable to $19.1 million in purchases of debt securities and $0.1 million in purchases of property and equipment, partially offset by $21.6 million from maturities of investments.

Financing Activities

Net cash used in financing activities for the three months ended March 31, 2025, was $0.4 million, which primarily consisted of $3.8 million in principal payments associated with the TLA Credit Agreement and $1.3 million of employee withholding tax payments related to stock-based awards, partially offset by $4.7 million in proceeds from the exercise of stock options.

Critical Accounting Estimates

Our management’s discussion and analysis of our financial condition and results of operations is based on our financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States of America, or GAAP. The preparation of these financial statements requires us to make estimates, judgments and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities as of the dates of the balance sheets and the reported amounts of expenses during the reporting periods. In accordance with GAAP, we evaluate our estimates and judgments on an ongoing basis.

Significant estimates include assumptions used in the determination of the amount of revenue recognized on sales of WAKIX, costs incurred under services type agreements related to the performance of research and development activities, the measurement of compensation expense pursuant to stock-based awards, the calculation of our income tax provision, and the determination of accounting treatment for our business combinations. We base our estimates on contractual terms, historical experience, and various other factors that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

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We define our critical accounting policies as those under GAAP that require us to make subjective estimates and judgments about matters that are uncertain and are likely to have a material impact on our financial condition and results of operations, as well as the specific manner in which we apply those principles. During the quarter covered by this report, there were no material changes to the accounting policies and assumptions previously disclosed, except as disclosed in Note 3 to the unaudited condensed consolidated financial statements contained herein.

Recent Accounting Pronouncements

See Note 3 to our unaudited condensed consolidated financial statements for recent accounting pronouncements.

Item 3. Quantitative and Qualitative Disclosures About Market Risk.

Interest Rate Fluctuation Risk

We are exposed to market risk related to changes in interest rates. We invest a portion of our cash in investment-grade, interest-bearing securities. The primary objectives of our investment activities are to preserve principal, maintain liquidity and maximize total return. In order to achieve these objectives, we invest in money market funds, U.S. government and agency securities, corporate bonds and commercial paper in accordance with our investment policy. Our investment policy defines allowable investments and establishes guidelines relating to credit quality, diversification, and maturities of our investments to preserve principal and maintain liquidity. All investment securities have a credit rating of at least A-2/P-2/F2 from at least two National Recognized Statistical Rating Organizations. We do not have any direct investments in asset-backed securities, collateralized debt or loan obligations, or structured investment vehicles. Our primary exposure to market risk is interest income sensitivity, which is affected by changes in the general level of U.S. interest rates. Based on our $423.4 million of investments in money market funds, U.S. treasury notes, corporate bonds and municipal obligations as of March 31, 2025, an immediate 10% change in market interest rates would not have a material impact on the fair market value of our investment portfolio or on our financial position or results of operations.

As of March 31, 2025, we had $177.5 million in borrowings outstanding. The Term Loan bears interest at a per annum rate equal to, at our option, (i) a base rate plus a specified margin ranging from 2.50% to 3.00%, based on our senior secured net leverage ratio (as defined in the TLA Credit Agreement) or (ii) Term SOFR plus a credit spread adjustment of 0.10% plus a specified margin ranging from 3.50% to 4.00%, based on our senior secured net leverage ratio. Based on the $177.5 million of principal outstanding as of March 31, 2025, an immediate 10% change in the Term SOFR would not have a material impact on our debt-related obligations, financial position or results of operations.

Foreign Currency Fluctuation Risk

We are not currently exposed to significant market risk related to changes in foreign currency exchange rates; however, we have contracted with and may continue to contract with foreign vendors that are located in Europe. Our operations may be subject to fluctuations in foreign currency exchange rates in the future.

Inflation Fluctuation Risk

Inflation generally affects us by increasing our cost of labor and clinical trial costs. We do not believe that inflation had a material effect on our business, financial condition or results of operations for each of the three months ended March 31, 2025, and 2024.

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Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

Our management, including our principal executive officer and our principal financial officer, has evaluated the effectiveness of our disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, as of March 31, 2025. Based on that evaluation, our principal executive officer and principal financial officer concluded that, as of March 31, 2025, our disclosure controls and procedures were effective to provide reasonable assurance that the information we are required to disclose in reports that we file or submit under the Exchange Act is recorded, processed, summarized, and reported within the time periods specified in SEC rules and forms, and that such information is accumulated and communicated to our management, including our principal executive officer and principal financial officer, as appropriate, to allow timely decisions regarding required disclosure.

Changes in Internal Control over Financial Reporting

There were no changes in our internal control over financial reporting during the quarter ended March 31, 2025, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Limitations on Effectiveness of Controls and Procedures

Our management does not expect that our disclosure controls and procedures or our internal control over financial reporting will prevent all errors and all fraud. A control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within our Company have been detected.

PART II. OTHER INFORMATION

Item 1. Legal Proceedings.

From time to time, we may become involved in litigation relating to claims arising from the ordinary course of business. Our management believes that there are currently no claims or actions pending against us, the ultimate disposition of which could have a material adverse effect on our results of operations or financial condition.

Refer to Part I, Item I, Note 13 “Commitments and Contingencies,” of this Quarterly Report for a full description of our material pending legal matters.

Item 1A. Risk Factors.

In addition to the other information included in this report, you should carefully consider the discussion of risk factors affecting the Company as set forth in Part I, Item 1A "Risk Factors” included in our Annual Report on Form 10-K for the year ended December 31, 2024, which could materially affect our business, financial condition or future results. The risks described in these reports are not the only risks facing the Company. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial may also materially adversely affect our business, financial condition, and operating results.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.

None.

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Item 3. Defaults upon Senior Securities.

None.

Item 4. Mine Safety Disclosures.

Not applicable.

Item 5. Other Information.

Rule 10b5-1 Trading Arrangements

On February 26, 2025, Andrew Serafin, Chief Strategy Officer of the Company, adopted a Rule 10b5-1 trading arrangement that is intended to satisfy the affirmative defense of Rule 10b5-1(c) for the sale of (i) up to 50,000 shares of the Company’s common stock related to the exercise of options, beginning on May 28, 2025 and continuing until May 31, 2026.

On February 28, 2025, Jeffrey Dierks, the former Chief Commercial Officer of the Company, adopted a Rule 10b5-1 trading arrangement that is intended to satisfy the affirmative defense of Rule 10b5-1(c) for the sale of (i) up to 48,765 shares of the Company’s common stock related to the exercise of options, and (ii) an indeterminable number of shares of the Company’s common stock that will depend on the number of shares sold to cover tax withholding obligations in connection with the vesting of 45,000 restricted stock units previously granted, beginning on July 1, 2025 and continuing until December 1, 2025. This plan was terminated on March 31, 2025.

On March 4, 2025, Sandip Kapadia, Chief Financial Officer and Chief Administrative Officer of the Company, adopted a Rule 10b5-1 trading arrangement that is intended to satisfy the affirmative defense of Rule 10b5-1(c) for the sale of (i) up to 25,000 shares of the Company’s common stock related to the exercise of options, and (ii) up to 25,000 shares of the Company’s common stock related to the vesting of restricted stock units previously granted, beginning on July 1, 2025 and continuing until December 31, 2025.

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Item 6. Exhibits.

Exhibit		Incorporated by Reference
No.	Exhibit Description	Form	Date	Number
2.1+	Agreement and Plan of Merger, dated August 14, 2023, by and among Harmony Biosciences Holdings, Inc., Xylophone Acquisition Corp. and Zynerba Pharmaceuticals, Inc.	8-K/A	September 14, 2023	2.1
3.1	Amended and Restated Certificate of Incorporation of Harmony Biosciences Holdings, Inc.	8-K	August 21, 2020	3.1
3.2	Amended and Restated Bylaws.	8-K	August 21, 2020	3.2
10.1	Amendment No. 1 to License and Commercialization Agreement, dated July 31, 2022, by and between Bioprojet Société Civile de Recherche and Harmony Biosciences, LLC.	10-Q	April 30, 2024	10.1
10.2	Amendment No. 2 to License and Commercialization Agreement, dated July 28, 2017, by and between Bioprojet Société Civile de Recherche and Harmony Biosciences, LLC.	10-Q	April 30, 2024	10.2
10.3#	Employment Letter between Harmony Biosciences, LLC, and Kumar Budur, as amended.	8-K	May 3, 2024	10.1
10.4#	Separation Agreement by and between Jeffrey Dierks, Harmony Biosciences Holdings, Inc., Harmony Biosciences, LLC, and Harmony Biosciences Management, Inc., dated March 20, 2025.	8-K	March 24, 2025	10.1
31.1*	Certification of Chief Executive Officer pursuant to Rules 13a-14(a) and 15d-14(a) of the Securities Exchange Act of 1934, as amended, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2*	Certification of Chief Financial Officer pursuant to Rules 13a-14(a) and 15d-14(a) of the Securities Exchange Act of 1934, as amended, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1**	Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2**	Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101*	The following financial statements from the Company’s Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 2025, formatted in Inline XBRL: (i) Balance Sheets, (ii) Statements of Operations, (iii) Statements of Stockholders’ Equity and (vi) Notes to Financial Statements, tagged as blocks of text and including detailed tags.
104*	Cover Page Interactive Date File (formatted as Inline XBRL and contained in Exhibit 101)

*	Filed herewith.

Furnished herewith. This certification is deemed furnished, and not filed, with the Securities and Exchange Commission and is not to be incorporated by reference into any filing of Harmony Biosciences Holdings, Inc. under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date of this Quarterly Report on Form 10-Q, irrespective of any general incorporation language contained in such filing.

Schedules have been omitted pursuant to Item 601(b)(2) of Regulation S-K. The Company hereby undertakes to furnish supplemental copies of any of the omitted schedules upon request by the SEC; provided, however, that the Company may request confidential treatment pursuant to Rule 24b-2 of the Securities Exchange Act of 1934 for any schedules so furnished.

#	Indicates management contract or compensatory plan or arrangement.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.


	HARMONY BIOSCIENCES HOLDINGS, INC.

	By:		/s/ Jeffrey M. Dayno
	Name:		Jeffrey M. Dayno
	Title:		President, Chief Executive Officer and Director (principal executive officer)
	Date:		May 6, 2025

	By:		/s/ Sandip Kapadia
	Name:		Sandip Kapadia
	Title:		Chief Financial Officer and Chief Administrative Officer (principal financial officer)
	Date:		May 6, 2025

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Date	Price Target	Rating	Analyst
2/11/2025	$55.00	Buy	Deutsche Bank
12/17/2024	$75.00	Buy	H.C. Wainwright
10/10/2024		Outperform	Raymond James
9/10/2024	$56.00	Buy	UBS
6/21/2024	$48.00	Buy	Citigroup
1/2/2024	$30.00	Neutral → Underperform	BofA Securities
9/25/2023	$40.00 → $31.00	Neutral → Sell	Goldman
9/7/2023	$59.00	Buy	Berenberg

Three Months Ended March 31,

Stock options, SARs, and RSUs to purchase common stock