Note 4 — Equity Method Investment

In December 2024, we completed the sale of our manufacturing facility located in Huntsville, Alabama (the Facility) and certain other manufacturing assets related thereto, including the assignment of our existing manufacturing and supply obligations, to Gannet BioChem, an affiliate of Ampersand Management LLC d/b/a Ampersand Capital Partners (Ampersand), via an Asset Purchase Agreement (the APA), for consideration of $64.7 million in cash, net of transaction costs, and an approximate 20% equity ownership at the time of close in Gannet BioChem.

Our investment in Gannet BioChem is considered a variable interest entity for which we are not the primary beneficiary. We have significant influence, but do not control, Gannet BioChem through our noncontrolling representation on Gannet BioChem’s board of directors and our equity interests in Gannet BioChem. Accordingly, we do not consolidate Gannet BioChem and account for our investment in Gannet BioChem using the equity method of accounting, under which we record our share of Gannet BioChem’s profits and losses as gain or loss from equity method investment in our Condensed Consolidated Statements of Operations. As a result of Ampersand’s liquidation preferences, we record our share of Gannet BioChem’s gains and losses under the hypothetical liquidation at book value method, which is a balance sheet approach that calculates the change in the hypothetical amount Ampersand and we would be entitled to receive if Gannet BioChem were liquidated at book value at the end of each period, adjusted for any contributions made and distributions received during the period, as well as basis differences between the initial fair value of our investment in Gannet BioChem and our claim on the net assets of Gannet BioChem. Our maximum exposure to loss in Gannet BioChem is limited to the carrying value of our investment.

Gannet BioChem is considered a related party to Nektar. We have entered into agreements with Gannet BioChem for the supply of the polyethylene glycol reagents used in the manufacture of rezpegaldesleukin and certain other development services. We also provided certain accounting and information technology services to Gannet BioChem under a transition services agreement, which concluded during the three months ended June 30, 2026.