RA CAPITAL MANAGEMENT, L.P. - 09 Mar 2026 SCHEDULE 13D/A 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
52,186,101 shares
Disclosed Ownership
5,166,424 shares
Ownership
9.9%
Form type
SCHEDULE 13D/A
Filing time
11 Mar 2026, 16:43:17 UTC
Date of event
09 Mar 2026
Previous filing
03 Oct 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% 5,166,424 0 5,166,424 /s/ Peter Kolchinsky By Peter Kolchinsky, Authorized Signatory 0001346824
Peter Kolchinsky 9.9% 5,166,424 0 5,166,424 /s/ Peter Kolchinsky Peter Kolchinsky 0001384859
Rajeev Shah 9.9% 5,166,424 0 5,166,424 /s/ Rajeev Shah Rajeev Shah 0001619841
RA Capital Healthcare Fund, L.P. 9.9% 5,166,424 0 5,166,424 /s/ Peter Kolchinsky By RA Capital Healthcare Fund GP, LLC, its General Partner, By Peter Kolchinsky, Manager 0001315082