HOOKIPA Pharma Announces Completion of Sale of HBV and HIV Assets to Gilead

HOOKIPA Pharma Inc. (OTCID: HOOK, “HOOKIPA”) today announced the completion of the sale of its assets related to HOOKIPA’s HB-400 program and certain of its assets related to HOOKIPA’s HB-500 program to Gilead Sciences, Inc. (“Gilead”).

In connection with the consideration and evaluation of HOOKIPA’s long-term prospects and strategies by HOOKIPA’s board of directors, on May 21, 2025 HOOKIPA entered into an asset purchase agreement (“Asset Purchase Agreement”) with Gilead pursuant to which Gilead agreed to acquire all of HOOKIPA’s assets primarily related to or necessary for the conduct of HOOKIPA’s HB-400 program, currently in clinical development for the treatment of hepatitis B virus, and certain of HOOKIPA’s assets related to HOOKIPA’s HB-500 program, currently in clinical development for the treatment of human immunodeficiency virus. HOOKIPA has been developing the HB-400 and HB-500 programs in collaboration with Gilead pursuant to the collaboration and license agreement with Gilead. The closing of the Asset Purchase Agreement occurred on October 30, 2025.

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