VYNE Therapeutics Inc.

VYNE Therapeutics Inc.

Notes to Unaudited Condensed Consolidated Financial Statements

NOTE 1 -NATURE OF OPERATIONS

VYNE Therapeutics Inc. (the "Company") is a clinical-stage biopharmaceutical company focused on developing differentiated therapies to treat inflammatory and immune-mediated conditions with high unmet need.

The Company has exclusive worldwide rights to research, develop and commercialize products containing small molecule bromodomain and extra-terminal domain (“BET”) inhibitors for the treatment of any disease, disorder or condition in humans, which the Company licensed from Tay Therapeutics Ltd., formerly known as In4Derm Ltd ("Tay"). Through its transaction with Tay, the Company obtained access to a library of new small molecule BET inhibitor compounds including those that inhibit both BD1 and BD2 (“pan-BD” BET inhibitor) and that selectively inhibit BD2 (“BD2-selective” BET inhibitor). Through its access to this library of new small molecule BET inhibitors, the Company plans to develop product candidates for a diverse set of therapeutic indications. The Company has chosen to initially focus its development efforts with these molecules on immune-mediated inflammatory diseases, which are not being targeted by current BET inhibitors in development.

VYNE is developing VYN202, an oral, small molecule BD2-selective BET inhibitor. VYN202 has been designed to achieve potential class-leading potency and selectivity for BD2 vs. BD1. By maximizing BD2 selectivity, the Company believes VYN202 has the potential to be a potent oral immunomodulator option for both acute control and chronic management of immune-mediated inflammatory conditions, without the hematologic and gastrointestinal adverse effects associated with earlier generation systemic pan-BD BET inhibitors that were being developed in oncologic settings. The Company has completed a Phase 1a single ascending dose/multiple ascending dose ("SAD/MAD") trial of VYN202 in healthy volunteers and announced positive data from this trial in December 2024. The Company initiated a Phase 1b trial in February 2025 in adult subjects with moderate-to-severe plaque psoriasis.

In April 2025, the U.S. Food and Drug Administration (FDA) verbally placed a clinical hold on the Company’s Phase 1b trial evaluating VYN202 in subjects with moderate-to-severe plaque psoriasis following an observation of testicular toxicity in dogs from a non-clinical toxicology study of VYN202. In June 2025, the FDA lifted the clinical hold for two doses of VYN202 for female subjects and indicated that sufficient data from a 12-week non-clinical toxicology study of VYN202 in dogs would be required in order to resume studies in male clinical subjects. Following the clinical hold, the Company made the decision to unblind the clinical data from the subjects who were enrolled in the trial. Based on interim unblinded clinical data from the Phase 1b trial, together with promising results from multiple preclinical models, the Company terminated the Phase 1b psoriasis trial in support of continued advancement of VYN202 into other serious, immune-mediated diseases with more limited effective treatment options. In October 2025, the Company initiated the repeat non-clinical toxicology study of VYN202 in male dogs to potentially maximize strategic optionality for VYN202. The study is expected to be completed in the second half of 2026, with a final report expected in the fourth quarter of 2026.

Until July 2025, the Company's lead product was repibresib gel (also known as VYN201), a topically administered, small molecule pan-bromodomain (“BD”) BET inhibitor designed as a “soft” drug to address diseases involving multiple, diverse inflammatory cell signaling pathways while providing low systemic exposure. The Company announced positive results from a Phase 1b trial evaluating repibresib in nonsegmental vitiligo in October 2023 and initiated a Phase 2b trial in nonsegmental vitiligo in June 2024. In July 2025, the Company announced that the trial did not meet its primary endpoint of the proportion of subjects achieving an improvement in Facial Vitiligo Area Scoring Index of at least 50% from baseline (“F-VASI50”) at week 24 compared to vehicle. Based on these data, the Company discontinued the ongoing extension phase of the trial and terminated the trial.

In August 2025, the Company's Board of Directors initiated a strategic review to evaluate a range of options to maximize stockholder value, including the assessment of its internal pipeline, financing opportunities and strategic alternatives. Following the strategic review, the Company entered into an Agreement and Plan of Merger and Reorganization, dated as of December 17, 2025, which was amended on January 30, 2026 (as amended, the "Merger Agreement") with Yarrow Bioscience, Inc. ("Yarrow"), pursuant to which among other matters, Yellow Merger Sub Corp., a direct, wholly owned subsidiary of ours ("Merger Sub"), will merge with and into Yarrow, with Yarrow surviving as a wholly owned subsidiary of VYNE and the surviving corporation of the merger (the "Merger"). Following the completion of the Merger, if completed, the current business of Yarrow will become the Company’s primary business. As such, the Company may continue to evaluate opportunities for repibresib and VYN202 prior to the closing of the Merger, which may include a sale, license, transfer, disposition, divestiture or other monetization transaction to a third party or to a related party so long as the transaction would not result in material post-closing obligations to the Company without Yarrow’s consent.

For additional information regarding the sale of the Company's legacy commercial business (the “MST Franchise”) to Journey Medical Corporation ("Journey") in January 2022 and the Company's licensing arrangements with Tay, see "Note 3 - Strategic Agreements."

The Company is a Delaware corporation and operates asone business segment. Its previous principal executive offices was in Bridgewater, New Jersey, however, starting November 1, 2025, the Company operates on a fully remote model.

The Proposed Merger

The Merger Agreement

Following the strategic review described above, on December 17, 2025, the Company entered into the Merger Agreement with Yarrow, a privately held biotechnology company advancing YB-101 (also known as GS-098), a clinical-stage, humanized monoclonal antibody targeting the thyroid-stimulating hormone receptor for the treatment of Graves’ disease and thyroid eye disease, pursuant to which Yarrow will become a wholly owned subsidiary of VYNE and VYNE will operate under the name Yarrow Bioscience, Inc. following the Merger. The Company anticipates that the Merger will close in the third quarter of 2026, subject to certain closing conditions, along with the concurrent Yarrow Pre-Closing Financing (as described below). Following the Merger, the current business of Yarrow will become the primary business.

Yarrow Series A Preferred Stock Financing

In connection with the execution of the Merger Agreement, certain institutional and accredited investors (the "Series A Investors"), led by an affiliate of RTW Investments and Yarrow entered into a Series A stock purchase agreement, pursuant to which such persons invested in and purchased an aggregate of 20,242,911 shares of Yarrow Preferred Stock at a purchase price of $4.94 per share for aggregate gross proceeds to Yarrow of $100.0 million.

Yarrow Pre-Closing Financing

Concurrently with the execution and delivery of the Merger Agreement, the Series A Investors also entered into the Securities Purchase Agreement with Yarrow, pursuant to which such investors have agreed to purchase, immediately prior to the Merger, shares of Yarrow common stock or, in lieu thereof, Yarrow pre-funded warrants, representing an aggregate commitment of approximately $100.0 million in the Yarrow Pre-Closing Financing.

The shares of Yarrow common stock and Yarrow pre-funded warrants that are issued in the Yarrow Pre-Closing Financing will be or will have the right to be, respectively, converted into shares of VYNE common stock in the Merger.

The Securities Purchase Agreement contains customary representations and warranties of Yarrow and the purchaser parties thereto.

The Securities Purchase Agreement also contemplates Yarrow and the investors participating in the Yarrow Pre-Closing Financing entering into a registration rights agreement at the closing of the Yarrow Pre-Closing Financing, pursuant to which, among other things, the Combined Company will agree to provide for the registration and resale of certain shares of VYNE common stock that are held by the investors participating in the Yarrow Pre-Closing Financing from time to time pursuant to Rule 415.

Pre-Closing Special Cash Dividend

Further, prior to the closing of the Merger, the Company expects to declare and set aside the aggregate cash amount to be paid in accordance with a special cash dividend (the “special cash dividend”) to holders of record of outstanding shares of the Company's common stock as of a record date prior to the effective time of the Merger, to be determined by the board of directors. The ex-dividend date in respect of such special cash dividend will be determined by Nasdaq. The Company's stockholders of record prior to the ex-dividend date will be entitled to receive the special cash dividend, regardless of whether they beneficially own such shares as of the dividend date. The amount of the special cash dividend is expected to be approximately $14.5 million to $16.5 million in the aggregate.

Liquidity and Capital Resources

As of March 31, 2026, the Company had cash, cash equivalents and marketable securities of $24.9 million and an accumulated deficit of $761.2 million. The Company hadno outstanding debt as of March 31, 2026. For the three months ended March 31, 2026, the Company incurred a net loss of $3.6 million and used $4.1 million of cash in operations.

The Company's primary uses of capital were historically compensation and related expenses, research and development costs, legal and other regulatory expenses and general overhead costs. In anticipation of the Merger with Yarrow, the Company has suspended and is winding down its research and development activities, operations are limited and the Company expects that expenses, other than those related to the Merger, will continue to decrease. The Company's future operations are highly dependent on the success of the proposed Merger with Yarrow.

If the Merger is not completed, the Company may pursue other strategic alternatives, including financing opportunities, or liquidation. In order to continue the development of VYN202 or any future product candidates, the Company will require substantial additional capital. Accordingly, the Company may seek to raise any necessary additional capital to fund its operations. No assurance can be given as to whether additional needed financing will be available on terms acceptable to the Company, if at all. If sufficient funds on acceptable terms are not available when needed, the Company may be required to suspend or forego certain planned activities or liquidate. Failure to manage discretionary spending or raise additional financing, as needed, would adversely impact the Company’s ability to achieve its intended business objectives and have an adverse effect on its results of operations and future prospects.

In addition, the amount of proceeds the Company may be able to raise pursuant to its currently effective shelf registration statement on Form S-3 is limited. As of the filing of this Quarterly Report on Form 10-Q, the Company is subject to the general instructions of Form S-3 known as the "baby shelf rules." Under these rules, the amount of funds the Company can raise through primary public offerings of securities in any 12-month period using its registration statement on Form S-3 is limited to one-third of the aggregate market value of the shares of the Company's common stock held by its non-affiliates. Therefore, the Company will be limited in the amount of proceeds it is able to raise by selling shares of common stock using its Form S-3 until such time as the Company's public float exceeds $75.0 million.

In accordance with Accounting Standards Codification (“ASC”) Subtopic 205-40, Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern, the Company has evaluated whether there are conditions and events, considered in the aggregate, that raise substantial doubt about the Company’s ability to continue as a going concern within one year after the date that its unaudited condensed consolidated financial statements are issued. The Company believes its existing cash, cash equivalents and marketable securities are sufficient to fund its operating and capital expenditure requirements through the closing of the contemplated merger, which is subject to approval by the Company’s stockholders and the stockholders of Yarrow and other customary closing conditions, and for a period of at least 12 months from the date of issuance of these unaudited condensed consolidated financial statements.

NOTE 2 -SIGNIFICANT ACCOUNTING POLICIES

a. Basis of presentation

The unaudited condensed consolidated financial statements of the Company have been prepared in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP") for interim financial statements. In the opinion of management, the Company has made all necessary adjustments, which include normal recurring adjustments necessary for a fair statement of the Company’s unaudited condensed consolidated financial position, results of operations, cash flow and statement of stockholders' equity for the interim periods presented. Certain information and disclosures normally included in the annual audited consolidated financial statements prepared in accordance with U.S. GAAP have been condensed or omitted.

These unaudited condensed consolidated financial statements should be read in conjunction with the Company's audited consolidated financial statements contained in the Company's Annual Report on Form 10-K for the year ended December 31, 2025, as filed with the SEC on February 27, 2026.

The results for the three months ended March 31, 2026 are not necessarily indicative of the results expected for the year ending December 31, 2026.

b. Principles of consolidation

The unaudited condensed consolidated financial statements include the accounts of the Company and its subsidiaries. Intercompany balances and transactions have been eliminated upon consolidation.

c. Use of estimates

The preparation of unaudited condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the unaudited condensed consolidated financial statements and reported amounts of income and expenses during the reporting period. Actual results could differ from the Company’s estimates.

d. Cash and cash equivalents

The Company considers cash equivalents to be all short-term, highly liquid investments, which include short-term bank deposits, treasury bills and money market funds with original maturities of three months or less from the date of purchase that are not restricted as to withdrawal or use and are readily convertible to known amounts of cash.

e. Marketable securities

Marketable securities with original maturities of greater than three months and remaining maturities of less than one year from the balance sheet date are classified as short-term. Marketable securities with remaining maturities of greater than one year from the balance sheet date are classified as long-term.

The Company classifies all marketable securities as available-for-sale debt securities. The Company’s marketable securities are measured and reported at fair value using either quoted prices in active markets for identical securities or quoted prices in markets that are not active for identical or similar securities. Unrealized gains and losses are reported as a separate component of stockholders’ equity. The cost of securities sold is determined on a specific identification basis, and realized gains and losses, if any, are included in other income, net within the unaudited condensed consolidated statement of operations and comprehensive loss.

f. Property and equipment

Property and equipment are stated at cost, net of accumulated depreciation. The Company’s property and equipment are depreciated by the straight-line method on the basis of their estimated useful life.

Estimated useful lives are as follows:

g. Revenue recognition

The Company accounts for its revenue transactions under the Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") Topic 606, Revenue from Contracts with Customers. In accordance with ASC Topic 606, the Company recognizes revenues when its customers obtain control of its product for an amount that reflects the consideration it expects to receive from its customers in exchange for that product. To determine revenue recognition for contracts that are determined to be in scope of ASC Topic 606, the Company performs the following five steps: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when (or as) the Company satisfies the performance obligation. The Company only applies the five-step model to contracts when it is probable that the Company will collect the consideration it is entitled to in exchange for the goods or services it transfers to the customer. Once the contract is determined to be within the scope of ASC Topic 606, the Company assesses the goods or services promised within each contract and determines those that are performance obligations and assesses whether each promised good or service is distinct. The Company then recognizes as revenue the amount of the transaction price that is allocated to the respective performance obligation when such performance obligation is satisfied.

Following the disposition of the MST Franchise in January 2022, the Company does not have any revenue generating products; however, the Company may receive royalty revenues from the sale of specified products (see "Note 4 - Discontinued Operations").

Royalty Revenues and Collaboration Agreements

The Company is entitled to royalty payments with respect to sales of Finacea foam. The Company previously licensed the rights to Finacea foam to LEO Pharma A/S ("LEO Pharma"). Finacea foam was not part of the MST Franchise that was sold in January 2022. Royalties are recognized as revenue when the product is sold by LEO Pharma. For the three months ended March 31, 2026 and 2025, royalty revenues were $0.1 million and $0.2 million, respectively.

For collaboration agreements under ASC 606, the Company identifies the contract, identifies the performance obligations, determines the transaction price, allocates the contract transaction price to the performance obligations, and recognizes the revenue when (or as) the performance obligation is satisfied.

The Company identifies the performance obligations included within the agreement and evaluates which performance obligations are distinct. Upfront payments for licenses are evaluated to determine if the license is capable of being distinct from the obligations to participate on certain development and/or commercialization committees with the collaboration partners and supply manufactured drug product for clinical trials. For performance obligations that are satisfied over time, the Company utilizes the input method and revenue is recognized by consistently applying a method of measuring progress toward complete satisfaction of that performance obligation. The Company periodically reviews estimated periods of performance based on the progress under each arrangement and accounts for the impact of any changes in estimated periods of performance on a prospective basis.

Milestone payments are a form of variable consideration as the payments are contingent upon achievement of a substantive event. Milestone payments are estimated and are included in the transaction price when the Company determines that it is probable that there will not be a significant reversal of cumulative revenue recognized in future periods.

h. Collaboration arrangements

The Company analyzes its collaboration arrangements to assess whether they are within the scope of ASC Topic 808, Collaborative Arrangements (ASC 808), to determine whether such arrangements involve joint operating activities performed by parties that are both active participants in the activities and exposed to significant risks and rewards that are dependent on the commercial success of such activities. To the extent the arrangement is within the scope of ASC 808, the Company will assess whether aspects of the arrangement between it and their collaboration partner are within the scope of other accounting literature.

i. Research and development expenses

All expenses associated with research and development are expensed as incurred. Research and development expenses include expenses directly attributable to conducting the Company's research and development programs, including expenses incurred under arrangements with third parties, such as contract research organizations, contract development and manufacturing organizations and consultants as well as the cost of clinical trials, clinical trial supplies, salaries, stock-based compensation expenses, payroll taxes and other employee benefits.

Expenses are considered incurred based on the evaluation of the progress to completion of specific tasks under each contract using information and data provided by the service providers and vendors or the Company's estimate of the level of service that has been performed at each reporting date, whereas payments are dictated by the terms of each agreement, such as the successful enrollment of a certain number of patients, site initiation, and the completion of clinical trial milestones. As such, depending on the timing of payment relative to the receipt of goods or services, management may record prepaid expenses, accrued expenses, or other assets.

j. Credit losses

An allowance is maintained for potential credit lossesin accordance with accounting standards update ("ASU") No. 2016-13, Financial Instruments - Credit Losses. The Company evaluates its allowance based on expected losses rather than incurred losses, which is known as the current expected credit loss (“CECL”) model. The allowance is determined using the loss rate approach and is measured on a collective (pool) basis when similar risk characteristics exist. Where financial instruments do not share risk characteristics, they are evaluated on an individual basis. The allowance is based on relevant available information, from internal and external sources, relating to past events, current conditions, and reasonable and supportable forecasts. Trade receivable balances are written off against the allowance when it is deemed probable that the receivable will not be collected. Trade receivables, net are stated net of reserves for certain sales allowances and credit losses. Credit losses werenot material for the three months ended March 31, 2026 and 2025.

k. Fair value measurement

Fair value is based on the price that would be received from the sale of an asset or that would be paid to transfer a liability in an orderly transaction between market participants at the measurement date. In order to increase consistency and comparability in fair value measurements, the guidance establishes a fair value hierarchy that prioritizes observable and unobservable inputs used to measure fair value into three broad levels, which are described as follows:

Level 1: Quoted prices (unadjusted) in active markets that are accessible at the measurement date for assets or liabilities. The fair value hierarchy gives the highest priority to Level 1 inputs.

Level 2: Observable prices that are based on inputs not quoted on active markets but corroborated by market data or active market data of similar or identical assets or liabilities.

Level 3: Unobservable inputs are used when little or no market data is available. The fair value hierarchy gives the lowest priority to Level 3 inputs.

In determining fair value, the Company utilizes valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible and considers counterparty credit risk in its assessment of fair value.

l. Income taxes

Deferred taxes

Income taxes are computed using the asset and liability method. Under the asset and liability method, deferred income tax assets and liabilities are determined based on the differences between the financial reporting and tax bases of assets and liabilities and are measured using the currently enacted tax rates and laws. A valuation allowance is recognized to the extent that it is more likely than not that the deferred taxes will not be realized in the foreseeable future. Given the Company’s losses, the Company has provided a full valuation allowance with respect to its deferred tax assets.

Uncertainty in income tax

The Company follows a two-step approach in recognizing and measuring uncertain tax positions. The first step is to evaluate the tax position for recognition by determining if the available evidence indicates that it is more likely than not that the position will be sustained based on technical merits. If this threshold is met, the second step is to measure the tax position as the largest amount that has more than a 50% likelihood of being realized upon ultimate settlement.

The Company’s net operating loss ("NOL") carryforwards are subject to annual limitations imposed by Section 382 of the Internal Revenue Code. The Company completed a Section 382 study through March 31, 2025, identifying ownership changes in connection with the 2020 merger between Menlo Therapeutics (the Company's predecessor company) and Foamix Pharmaceuticals Ltd. and with the private placement transaction in November 2023. These ownership changes resulted in federal NOLs expected to expire unutilized.

One Big Beautiful Bill Act ("OBBBA")

On July 4, 2025, President Trump signed into law the One Big Beautiful Bill Act ("OBBBA"), which made comprehensive revisions to federal corporate income tax provisions, including those related to research and development expense treatment, full expensing of business assets, interest deduction limitations, and international tax regimes such as global intangible low-taxed income ("GILTI"), foreign-derived intangible income ("FDII"), and controlled foreign corporation ("CFC") look-through rules. The enactment of this legislation did not have a material impact on the Company’s income tax provision for the three months ended March 31, 2026.

m. Net loss per share

Net loss per share, basic and diluted, is computed on the basis of the net loss from continuing operations for the period divided by the weighted average number of shares of common stock outstanding during the period. Diluted net loss per share is based upon the weighted average number of shares of common stock and of common stock equivalents outstanding when dilutive. The Company has issued Pre-Funded Warrants to purchase the Company’s common stock (the "Pre-Funded Warrants"), which do not expire until they are exercised in full (see “Note 8 - Stockholders' Equity”). Pursuant to the guidance of ASC 260-10, the Company concluded that because the equity-classified Pre-Funded Warrants were immediately exercisable for little or no cash consideration, due to the non-substantive exercise price, all of the necessary conditions for issuance of the underlying shares of common stock had been met when the Pre-Funded Warrants were issued. Therefore, the underlying shares of common stock should be included in the denominator for both the calculation of basic and diluted net loss per share of common stock for the three months ended March 31, 2026 and 2025.

The following stock options, restricted stock units (“RSUs”) and warrants were excluded from the calculation of diluted net loss per share because their effect would have been anti-dilutive for the periods presented (data presented as number of shares):

n. Concentration of credit risks

Financial instruments that potentially subject the Company to concentration of credit risk consist principally of cash and cash equivalents, marketable securities and accounts receivable. The Company deposits cash and cash equivalents with highly rated financial institutions and, as a matter of policy, limits the amounts of credit exposure to any single financial institution. In addition, all marketable securities carry a high credit rating or are government insured. The Company has not experienced any material credit losses in these accounts and does not believe it is exposed to significant credit risk on these instruments.

Existing royalty receivables relate to one customer, but do not present a credit risk due to their immaterial nature.

o. Warrants

The Company accounts for warrants as either equity-classified or liability-classified instruments based on an assessment of the warrant’s specific terms and applicable authoritative guidance in ASC Topic 480, Distinguishing Liabilities from Equity (“ASC 480”) and ASC Topic 815, Derivatives and Hedging (“ASC 815”). The assessment considers whether the warrants are freestanding financial instruments pursuant to ASC 480, meet the definition of a liability pursuant to ASC 480, and meet all of the requirements for equity classification under ASC 815, including whether the warrants are indexed to the Company’s own common stock, among other conditions for equity classification. This assessment, which requires the use of professional judgment, is conducted at the time of warrant issuance and as of each subsequent reporting period end date while the warrants are outstanding. For issued warrants that meet all of the criteria for equity classification, the warrants are required to be recorded as a component of additional paid-in capital at the time of issuance. For issued warrants that do not meet all the criteria for equity classification, the warrants are required to be recorded at their initial fair value on the date of issuance, and each balance sheet date thereafter. Changes in the estimated fair value of the warrants are recognized as a non-cash gain or loss on the statements of operations and comprehensive loss. Liability-classified warrants are required to be accounted for at fair value both on the date of issuance and on subsequent accounting period ending dates, with all changes in fair value after the issuance date recorded as a component of other income, net in the statements of operations and comprehensive loss. As of March 31, 2026 and December 31, 2025, all of the Company's outstanding warrants were equity-classified warrants.

p. Newly issued and recently adopted accounting pronouncements

Recently Issued Accounting Pronouncements:

In November 2024, the FASB issued ASU No. 2024-03,"Comprehensive Income (Topic 220)—Disaggregation of Income Statement Expenses"("ASU 2024-03"), to improve financial reporting by requiring disclosures in the notes to financial statements about specific types of expenses included in the expense captions presented on the face of the statement of operations and comprehensive loss. The requirements of the ASU, as clarified by ASU 2025-01 issued in January 2025, are effective for annual reporting periods beginning after December 15, 2026 and for interim reporting periods beginning after December 15, 2027, with early adoption permitted. The requirements will be applied prospectively with the option for retrospective application. The Company is evaluating the impact the adoption of this guidance will have on its unaudited condensed consolidated financial statements and related disclosures.

NOTE 3 -STRATEGIC AGREEMENTS

Agreements with Tay Therapeutics

Evaluation and Option Agreement

In April 2021, the Company entered into an Evaluation and Option Agreement (the “Option Agreement”) with Tay. Pursuant to the Option Agreement, Tay granted the Company an exclusive option to obtain certain exclusive worldwide rights to research, develop and commercialize products containing Tay’s BET inhibitor compounds for the treatment of any disease, disorder or condition in humans. Pursuant to the Option Agreement, the Company agreed to use commercially reasonable efforts to stabilize, develop and manufacture a product with a pan-BD BET inhibitor as its active ingredient and Tay agreed to provide a mutually agreed data package and select new chemical entity development candidate from its highly selective BET inhibitor compounds (the "Oral BETi Compounds"). The Company paid a $1.0 million non-refundable cash payment to Tay upon execution of the Option Agreement,50% of which was to be used by Tay in the development of the Oral BETi Compounds.

Under the terms of the Option Agreement, the Company's option (the "Oral Option") with respect to the Oral BETi Compounds was to expire on June 30, 2022 (the "Option Term"), but in June 2022, the Company and Tay entered into a Letter Agreement (the “Letter Agreement”) to extend the Option Term to February 28, 2023. In February 2023, the parties entered into an additional Letter Agreement (the "Second Letter Agreement") pursuant to which the Option Term was further extended to April 30, 2023. The Company exercised the Oral Option for VYN202 on April 28, 2023.

License for Locally Administered Pan-BD BET Inhibitor Program (Repibresib)

On August 6, 2021, the Company exercised its option with respect to the repibresib program and, on August 9, 2021, the parties entered into a License Agreement (the “Repibresib License Agreement”) granting the Company a worldwide, exclusive license that is sublicensable through multiple tiers to exploit certain of Tay’s pan-BD BET inhibitor compounds in all fields. The Company has the sole responsibility for development, regulatory, marketing and commercialization activities to be conducted for the licensed products at its sole cost and discretion. The Company is required to use commercially reasonable efforts to develop and, if approved, commercialize such products. Pursuant to the Repibresib License Agreement, a joint development committee consisting of one representative from each party reviews the progress of the development plan for the licensed products. Pursuant to the Repibresib License Agreement, the Company may develop a product that contains or incorporates a specific BET inhibitor, whether alone or in combination with other active ingredients, in any form, formulation, presentation, or dosage, and for any mode of administration.

The Company made a $0.5 million cash payment to Tay in connection with entering into the Repibresib License Agreement. Pursuant to the Repibresib License Agreement, the Company has agreed to make cash payments to Tay of up to $15.75 million upon the achievement of specified clinical development and regulatory approval milestones with respect to each licensed topical product in the United States for all indications, of which$1.8 millionhas been paid through March 31, 2026. Tay is entitled to additional milestone payments upon the achievement of regulatory approvals in certain non-U.S. jurisdictions. In addition, with respect to any products the Company commercializes under the Repibresib License Agreement, the Company will pay tiered royalties to Tay on net sales of such licensed products by the Company, its affiliates, or sublicensees, of 5%,7.5% and 10% based on tiered annual net sales bands subject to specified reductions. The Company is obligated to pay royalties until the latest of (1) the tenth anniversary of the first commercial sale of the relevant licensed product, (2) the expiration of the last valid claim of the licensed patent rights covering such licensed product in such country and (3) the expiration of regulatory exclusivity for the relevant licensed product in the relevant country, on a licensed product-by-licensed product and country-by-country basis.

Pursuant to the Repibresib License Agreement, VYNE was granted a sublicense under certain intellectual property which was licensed to Tay by the University of Dundee (“Dundee”) pursuant to a certain license agreement between Tay and Dundee effective as of July 24, 2020 and amended and restated on October 8, 2021 (the “Head License”). On February 13, 2025, Tay and Dundee entered into an agreement for the termination of the Head License and assignment of such intellectual property from Dundee to Tay. Upon termination of the Head License, the Repibresib License Agreement was accordingly amended to reflect the assignment of the intellectual property to Tay upon its payment in full to Dundee. The amendment does not change any of Tay’s or VYNE’s rights or obligations under the Repibresib License Agreement, except that any references to the Head License were removed and any obligations owed by VYNE to Dundee with respect to repibresib are now owed to Tay.

License for Selective BET Inhibitor Program (VYN202)

On April 28, 2023, the Company exercised the Oral Option and entered into a license agreement (the "VYN202 License Agreement") with Tay granting the Company a worldwide, exclusive license that is sublicensable through multiple tiers to exploit certain of Tay’s Oral BETi Compounds in all fields. The Company has the sole responsibility for development, regulatory, marketing and commercialization activities to be conducted for the licensed products at the sole cost and discretion of the Company, and shall use commercially reasonable efforts to develop and, if approved, commercialize such products. VYNE may sublicense its rights to a third party without Tay’s consent. Pursuant to the License Agreement, a joint development committee consisting of one representative from each party reviews the progress of the development plan for the licensed products.

The Company made a cash payment of $3.75 million, after deducting the $250,000 paid in February 2023, to Tay in connection with entering into the VYN202 License Agreement. This payment was recorded as a research and development expense in the period paid. Pursuant to the terms of the VYN202 License Agreement, the Company agreed to make cash payments to Tay of up to $43.75 million upon the achievement of specified clinical development and regulatory approval milestones with respect to each licensed oral product in the United States for all indications, of which $2.3 million has been paid through March 31, 2026. In August 2025, the Company paid Tay $1,000,000 in partial satisfaction of the "Phase 2 Milestone" under the VYN202 License Agreement for the initiation of the Phase 1b trial in psoriasis. The VYN202 License Agreement was also amended in August 2025 to provide that upon initiation of a new clinical trial in a target patient population involving VYN202 for oral administration with an efficacy endpoint, regardless of the trial's phase designation or regulatory classification, the Company shall pay Tay the remaining $4,000,000 amount under the "Phase 2 Milestone." All other terms of the VYN202 License Agreement were unchanged.

Tay is entitled to additional milestone payments upon the achievement of regulatory approvals in certain non-U.S. jurisdictions. In addition, with respect to any products the Company commercializes under the VYN202 License Agreement, the Company will pay tiered royalties to Tay on net sales of such licensed products by the Company, its affiliates, or sublicensees, of 5%,7.5% and 10% based on tiered annual net sales bands subject to specified reductions. The Company is obligated to pay royalties until the latest of (1) the tenth anniversary of the first commercial sale of the relevant licensed product, (2) the expiration of the last valid claim of the licensed patent rights covering such licensed product in such country and (3) the expiration of regulatory exclusivity for the relevant licensed product in the relevant country, on a licensed product-by-licensed product and country-by-country basis.

Sale of the MST Franchise

On January 12, 2022, the Company entered into an Asset Purchase Agreement (the “Purchase Agreement”) with Journey pursuant to which the Company sold its MST Franchise to Journey. The assets included certain contracts, including the license agreement with Cutia Therapeutics (HK) Limited (“Cutia”), inventory and intellectual property related to the MST Franchise (together, the “Assets”). Pursuant to the Agreement, Journey assumed certain liabilities of the MST Franchise. There were no current or long-term liabilities recorded by the Company which were transferred to Journey.

Pursuant to the Purchase Agreement, the Company received an upfront payment of $20.0 million at the closing of the sale of the MST franchise and received an additional $5.0 million deferred payment in January 2023. The Company is also eligible to receive sales milestone payments of up to $450.0 million in the aggregate upon the achievement of specified levels of net sales on a product-by-product basis, beginning with annual net sales exceeding $100.0 million (with products covered in three categories (1) AMZEEQ (and certain modifications), (2) ZILXI (and certain modifications), and (3) FCD105 and other products covered by the patents being transferred, including certain modifications). In addition, the Company is entitled to receive certain payments from any licensing or sublicensing of the assets by Journey outside of the United States.

NOTE 4 –DISCONTINUED OPERATIONS

The Company determined that the sale of the MST Franchise represented a strategic shift that had a major effect on the business and therefore the MST Franchise met the criteria for classification as discontinued operations. Accordingly, the MST Franchise is reported as discontinued operations in accordance with ASC 205-20, Discontinued Operations. In accordance with ASC 205-20, only expenses specifically identifiable and related to a business to be disposed may be presented in discontinued operations. Historically, research and development, marketing, and general and administrative expenses in discontinued operations included corporate costs incurred directly to solely support the MST Franchise.

For the three months ended March 31, 2025, the loss from discontinued operations, net of income taxes was $8 thousand and consisted solely of general and administrative expenses. There was no loss or income recognized for the three months ended March 31, 2026.

There wereno non-cash items related to discontinued operations for the three months ended March 31, 2026 and 2025.

The milestone payments for sales of ZILXI, AMZEEQ and FCD105 represent contingent consideration. Contingent consideration has been accounted for as a gain contingency in accordance with ASC 450, Contingencies, and will be recognized in earnings in the period when realizable.

NOTE 5 –FAIR VALUE MEASUREMENTS

The Company’s financial assets that are measured at fair value as of March 31, 2026 and December 31, 2025 are classified in the tables below in one of the three categories described in “Fair value measurement (k)” in "Note 2 - Significant Accounting Policies” above:

Other financial instruments consist of trade receivables, trade payables and accrued expenses. The fair value of these financial instruments approximates their carrying values due to their short-term nature. In determining the fair value of its Level 2 investments, the Company relied on quoted prices for identical securities in markets that are not active. These quoted prices were obtained by the Company with the assistance of a third-party pricing service based on available trade, bid and other observable market data for identical securities.

NOTE 6 –MARKETABLE SECURITIES

As of March 31, 2026 and December 31, 2025, marketable securities consisted of U.S. Government and agency debt securities as well as U.S. Treasury bills.

The following table sets forth the Company’s marketable securities:

As of March 31, 2026 and December 31, 2025, the amortized cost, gross unrealized gains, gross unrealized losses and fair value were as follows:

As of March 31, 2026, there were $0.3 million of marketable securities with no material unrealized gains or losses. As of December 31, 2025, there were $5.0 million of marketable securities, which were in an unrealized gain position. The Company determined that unrealized gains and losses on marketable securities were primarily due to interest rate changes. No allowance for credit losses related to any of these marketable securities was recorded for the periods ended March 31, 2026 and December 31, 2025. All maturities are less than 12 months.

NOTE 7 -PROPERTY AND EQUIPMENT

The following table sets forth the Company's property and equipment, net as of March 31, 2026 and December 31, 2025:

Depreciation expense totaled $6 thousand for both the three months ended March 31, 2026 and 2025, which is included within general and administrative expenses on the unaudited condensed consolidated statements of operations and comprehensive loss.

NOTE 8 –STOCKHOLDERS' EQUITY

Preferred stock

As of March 31, 2026, the Company's Amended and Restated Certificate of Incorporation (as amended, the "Certificate of Incorporation") authorized the Company to issue 20,000,000 shares of preferred stock, par value $0.0001 per share. There wereno shares of preferred stock issued and outstanding as of March 31, 2026 and December 31, 2025.

Shares of preferred stock may be issued from time to time in one or more series. The voting powers (if any), preferences and relative, participating, optional or other special rights, and the qualifications, limitations and restrictions of any series of preferred stock will be set forth in a Certificate of Designation filed pursuant to the Delaware General Corporation Law, as determined by the Company's Board of Directors.

Common stock

Pursuant to the Certificate of Incorporation, the Company is authorized to issue 150,000,000 shares of common stock, par value $0.0001 per share. Each share of common stock is entitled toone vote. The holders of common stock are also entitled to receive dividends whenever funds are legally available and when and if declared by the board of directors, subject to the prior rights of holders of all classes of preferred stock outstanding. The Company has never declared any dividends on common stock.

Issuances of common stock and warrants

At-the-Market Equity Offering Program

On March 1, 2024, the Company entered into a sales agreement (the “Cowen Sales Agreement”) with Cowen and Company, LLC as sales agent (“Cowen”) under which the Company may offer and sell, from time to time at its sole discretion, shares of the Company's common stock through Cowen in an at-the-market offering having an aggregate offering price up to $50.0 million. Cowen is entitled to compensation for its services equal to 3.0% of the gross proceeds of any shares of common stock sold under the Cowen Sales Agreement. The Company did not sell any shares of common stock under the Cowen Sales Agreement during the three months ended March 31, 2026 and 2025.

Pre-Funded Warrants

In October 2023, the Company entered into a Security Purchase Agreement, pursuant to which the Company agreed to sell and issue to the Purchasers in a private placement shares of the Company’s common stock and Pre-Funded Warrants (the "Private Placement"). The Pre-Funded Warr ants issued in the Private Placement will not expire until exercised in full. The Pre-Funded Warrants may not be exercised if the aggregate number of shares of common stock beneficially owned by the holder thereof immediately following such exercise would exceed a specified beneficial ownership limitation; provided, however, that a holder may increase or decrease the beneficial ownership limitation by giving 60 days’ notice to the Company, but not to exceed anypercentage in excess of 19.99%.

For the year ended December 31, 2025,18,297,097 Pre-Funded Warrants were exercised pursuant to a net exercise mechanism. During the three months ended March 31, 2026, no Pre-Funded Warrants were exercised pursuant to a net exercise mechanism. As of March 31, 2026,9,545,643 Pre-Funded Warrants remained outstanding.

Other Warrants

As of March 31, 2026 and December 31, 2025, the Company had warrants to purchase an aggregate of 27,509 shares of the Company’s common stock outstanding, with an exercise price of $8.40, and an expiration date of July 29, 2026. These warrants were issued by Foamix Pharmaceuticals Ltd. in connection with a financing in July 2019 and were subsequently assumed by the Company in connection with the Merger (as defined below). Pursuant to the warrant certificate, the exercise price of the warrant will be proportionally adjusted in the event that the Company issues common stock at a price per share less than the exercise price (the "Down Round Feature"). In the event that the Down Round Feature is triggered, the Company must calculate the difference between the warrants’ fair value, using the Black-Scholes-Merton option-pricing model, before and after the Down Round Feature was triggered using the original exercise price and the new exercise price. The exercise price will continue to be adjusted in the event the Company issues additional shares of common stock below the then-current exercise price, in accordance with the terms of the warrants.

The Pre-Funded Warrants and warrants are classified as a component of permanent equity because they are freestanding financial instruments that are legally detachable and separately exercisable from the shares of common stock with which they were issued, are immediately exercisable, do not embody an obligation for the Company to repurchase its shares, and permit the holders to receive a fixed number of shares of common stock upon exercise. In addition, the Pre-Funded Warrants and warrants do not provide any guarantee of value or return.

NOTE 9 –SHARE-BASED COMPENSATION

2023 Equity Incentive Plan

The Company maintains the 2023 Equity Incentive Plan (the "2023 Plan") and previously maintained the 2019 Equity Incentive Plan (the “2019 Plan”) and 2018 Omnibus Incentive Plan (the "2018 Plan"). Following stockholder approval in December 2023, any shares then available for future grant under the 2019 Plan and 2018 Plan were allocated to the 2023 Plan and no further grants could be made under the 2018 Plan and the 2019 Plan. In December 2024, stockholders approved a proposal to amend the 2023 Plan to increase shares available for grant under the 2023 Plan by 1,520,000 shares. As of March 31, 2026,271,721 shares remained issuable under the 2023 Plan.

2024 Induce ment Plan

On February 28, 2024, the Board approved the Company's 2024 Inducement Plan (the "Inducement Plan"). Pursuant to the Inducement Plan and Nasdaq Listing Rule 5635(c)(4), the Company is permitted to grant equity awards as an inducement material to an individual's entering into employment with the Company, subject to certain conditions ("Inducement Grants"). In November 2024, the Board reduced the number of shares available to be issued under the Inducement Plan toone share. In thesecond quarter of 2025 and first quarter of 2026,111,250 and 3,750 shares, respectively, were returned to the Inducement Plan as a result of forfeited equity awards. As of March 31, 2026,115,001 shares were available for future Inducement Grants.

2019 Employee Share Purchase Plan

The Company has adopted the ESPP pursuant to which qualified employees (as defined in the ESPP) may elect to purchase designated shares of the Company’s common stock at a price equal to 85%of the lesser of the fair market value of the common stock at the beginning or end of each semi-annual share purchase period (“Purchase Period”). Employees are permitted to purchase the number of shares purchasable with up to 15%of the earnings paid (as such term is defined in the ESPP) to each of the participating employees during the Purchase Period, subject to certain limitations under Section 423 of the U.S. Internal Revenue Code.

As of March 31, 2026,62,419 shares remained available for grant under the ESPP.

For the three months ended March 31, 2026 and 2025, no shares were purchased by employees pursuant to the ESPP.

Options granted to employees and directors:

For the three months ended March 31, 2026, no options or RSUs were granted to employees and directors.

Stock-based compensation expenses:

The following table illustrates the effect of stock-based compensation on the line items on the unaudited condensed consolidated statements of operations and comprehensive loss:

NOTE 10 –COMMITMENTS AND CONTINGENCIES

Litigation and contingencies

The Company may periodically become subject to legal proceedings and claims arising in connection with its business. As of March 31, 2026, there wereno claims or actions pending against the Company that, in the opinion of management, are likely to have a material adverse effect on the Company.

NOTE 11 -SEGMENT INFORMATION

The Company operates inone operating segment, and thereforeone reportable segment, focused on the development of differentiated therapies to treat chronic inflammatory and immune-mediated conditions of high unmet need. This determination, that the Company operates as a single operating segment, is consistent with the financial information regularly reviewed by the Company's Chief Operating Decision Maker (“CODM”) for purposes of evaluating performance, allocating resources, and planning and forecasting for future periods. The Company's Chief Executive Officer (“CEO”) is the CODM.

The accounting policies for the single operating segment are the same as those described in “Note 2—Significant Accounting Policies.” The CODM uses net loss based on net loss that is reported on the unaudited condensed consolidated statement of operations and comprehensive loss to allocate resources (including employees, property, and financial resources), predominantly during the annual budget and forecasting process. The Company’s CODM views specific program spend within research and development expenses as well as overall general and administrative expenses as significant segment expenses. As a pre-product revenue company, the CODM also considers budget versus actual results for expenses that are deemed significant and cash forecast models for assessing performance and to decide the level of investment in the Company’s operating and capital allocation activities. Further, the measure of segment assets is reported on the unaudited condensed consolidated balance sheet as total consolidated assets. All long-lived assets are held in the United States. All revenues are generated in the US.

The following table presents segment revenue and significant expenses regularly reviewed by the CODM for the three months ended March 31, 2026 and 2025:

*Other segment items relate to research and development expenses that cannot be directly allocated to one specific product candidate, such as employee-related expenses, consulting, quality control, regulatory, and general IP legal expenses.

Accordingly, the Company manages its operations as a single operating and reportable segment, and the unaudited condensed consolidated financial statements and notes thereto are presented as a single reportable segment.