Genmab(GMAB) - 2025 Q4 - Annual Report

Exhibit 99.1 Genmab Announces Initiation of Share Buy-Back Program Company Announcement COPENHAGEN, Denmark; February 17, 2026 – Genmab A/S (Nasdaq: GMAB) announced today that it is initiating a share buy-back program, to honor our commitments under the Restricted Stock Unit program. The share buy- back program will be undertaken on the terms set out below and in accordance with Regulation (EU) No. 596/2014 ('MAR') and the Commission Delegated Regulation (EU) 2016/1052, also referred to as the "Safe Harbour ...