Form: S-1

General form for registration of securities under the Securities Act of 1933

August 12, 2025

Exhibit 21.1

List of Subsidiaries

Adgero Biopharmaceuticals Holdings, Inc. (Delaware)

Adgero Biopharmaceuticals, Inc. (Delaware)

TuHURA Biosciences, Inc. (Delaware)

Kineta, LLC (Delaware)