X0609 4 2026-06-25 0001833214 SAB Biotherapeutics, Inc. SABS 0001825323 Kropotova Alexandra false 777 W 41ST STREET, SUITE 401 MIAMI BEACH FL 33140 false true false false CHIEF MEDICAL OFFICER false Common Stock 2026-06-25 4 F false 988 D 42308 D Represents shares of the Issuer's common stock ("Common Stock") withheld to statisfy tax withholding requirements on the vesting of the Issuer's restricked stock units ("RSUs"). Includes 37,158 shares of Common Stock and 5,150 shares of Common Stock which remain subject to vesting of RSUs granted under the Issuer's 2021 Equity Incentive Plan, as amended. Each RSU represents a contingent right to receive one share of Common Stock. /s/ Alexandra Kropotova 2026-06-26