RA CAPITAL MANAGEMENT, L.P. - 26 Sep 2025 SCHEDULE 13D Report for SAB Biotherapeutics, Inc. Common Stock, $0.0001 par value per share (SABS)

Filing Manager
RA CAPITAL MANAGEMENT, L.P.
Reporting Manager
RA Capital Management, L.P.
Security
SAB Biotherapeutics, Inc. Common Stock, $0.0001 par value per share
Symbol
SABS
Shares outstanding
44,459,596 shares
Disclosed Ownership
4,401,500 shares
Ownership
9.9%
Form type
SCHEDULE 13D
Filing time
03 Oct 2025, 16:26:17 UTC
Date of event
26 Sep 2025
SEC
View on sec.gov

Reporting Managers (4)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
RA Capital Management, L.P. 9.9% 4,401,500 0 4,401,500 /s/ Peter Kolchinsky By Peter Kolchinsky, Authorized Signatory 0001346824
Peter Kolchinsky 9.9% 4,401,500 0 4,401,500 /s/ Peter Kolchinsky Peter Kolchinsky 0001384859
Rajeev Shah 9.9% 4,401,500 0 4,401,500 /s/ Rajeev Shah Rajeev Shah 0001619841
RA Capital Healthcare Fund, L.P. 9.9% 4,401,500 0 4,401,500 /s/ Peter Kolchinsky By RA Capital Healthcare Fund GP, LLC, its General Partner, By Peter Kolchinsky, Manager 0001315082