Note 13 – License and Collaboration Agreements

Agenus Agreement

In   November 2019, the Company entered into a license agreement with Agenus Inc. ("Agenus"), pursuant to which Agenus granted to the Company an exclusive, worldwide (not including Argentina, Brazil, Chile, Colombia, Peru, Venezuela and their respective territories and possessions), royalty-bearing, sublicensable license under Agenus’s intellectual property rights to develop, make, use, sell, import, and otherwise commercialize products incorporating a proprietary monoclonal antibody of Agenus known as AGEN1884 (zalifrelimab), an anti-CTLA-4 antagonist, for the treatment of cancers of the urinary tract via intravesical delivery. UGN-301 is a formulation of zalifrelimab administered using RTGel technology that was in Phase 1 clinical development for high-grade NMIBC.

In  November 2025, the Company provided notice to terminate the license agreement with Agenus in connection with its decision to discontinue development of UGN-301. Under the terms of the license agreement, following notice of termination, the agreement will terminate upon the later of (a) the expiration of a 180-day notice period; or (b) completion of all wind-down activities and delivery of all Agenus Improvements (as defined in the license agreement) to Agenus. The Company does not expect to incur significant additional costs related to this program going forward.