Dr. Thompson, a member of our Board of Directors, is a general partner at OrbiMed, and OrbiMed is also a greater than 5% holder of our common stock. Under the Aegis Agreement, we incurred $0.2 million and $4.8 million in royalty expense to an affiliate of OrbiMed during the years ended December 31, 2024 and 2025, respectively, and $2.0 million in sales-based milestone payments to an affiliate of OrbiMed during the year ended December 31, 2025. For the three months ended March 31, 2026, we incurred $1.2 million in expense to OrbiMed pursuant to the Aegis Agreement.
Because the agreement described above was entered into with an unrelated party, Aegis, and assigned by Aegis to OrbiMed, the agreement was not reviewed or approved by our audit committee as a related-person transaction at the time we entered into the agreement.
Credit Agreement with RA Capital
In September 2025, we and certain of our subsidiaries, as guarantors, and ARS Pharmaceuticals Operations, Inc., (the “Borrower”) entered into a credit agreement (the “Credit Agreement”) with RA Capital Agency Services, LLC (as the “Administrative Agent” and as the “Collateral Agent”) and affiliates of OMERS Administration Corporation and RA Capital (the “Lenders”), providing for up to $250.0 million of term loans from the Lenders to the Borrower (the “Term Loans”). Pursuant to the terms of the Credit Agreement, the Term Loans may be advanced in four tranches. The first tranche (the “Term A Loan”) was advanced in the principal amount of $100.0 million on the closing date. We received $100.0 million in gross cash proceeds from Term A Loan on the closing date, less the upfront fees taken in the form of an original issue discount and third-party fees totaling $3.8 million. As of March 31, 2026, we had an outstanding principal balance under our Credit Agreement of $100.0 million.
The Administrative Agent and Collateral Agent, as well as a Lender, are affiliates of RA Capital. The general partner of RA Capital is RA Capital Management GP, LLC, of which Peter Kolchinsky, Ph.D. and Rajeev Shah are controlling persons. RA Capital Healthcare Fund, L.P. and RA Capital Nexus Fund II, L.P. collectively hold in excess of 10% of our outstanding common stock and are currently our largest stockholder. RA Capital serves as the investment adviser for each of RA Capital Healthcare Fund, L.P. and RA Capital Nexus Fund II, L.P. Dr. Kolchinsky serves as a member of our Board of Directors. As of March 31, 2026, the Lender affiliated with RA Capital held a portion of Term Loans in the principal amount of $5.0 million, and for the three months ended March 31, 2026, we incurred $0.1 million in interest expense to the Lender affiliated with RA Capital.
Indemnification Agreements
We have entered into indemnification agreements with our current directors and executive officers upon the completion of our initial public offering. Our amended and restated Certificate of Incorporation and our amended and restated Bylaws provides that we will indemnify our directors and officers to the fullest extent permitted by applicable law.
Policies and Procedures for Related-Person Transactions
We adopted a related-person transactions policy upon the completion of our initial public offering, which sets forth our policies and procedures regarding the identification, review, consideration and oversight of “related-person transactions.” For purposes of our policy only, a “related-person transaction” is a transaction that would be required to be disclosed pursuant to Item 404(a) of Regulation S-K. A “transaction” includes, but is not limited to, any financial transaction, arrangement or relationship (including any indebtedness or guarantee of indebtedness) or any series of similar transactions, arrangements or relationships. A related person is any executive officer, director, nominee to become a director, or a holder of more than five percent of our common stock, including any of their immediate family members and affiliates, including entities owned or controlled by such persons.