SR ONE CAPITAL MANAGEMENT, LLC - 09 Oct 2025 SCHEDULE 13D/A Report for Zenas BioPharma, Inc. Common Stock, $0.0001 par value (ZBIO)

Filing Manager
SR ONE CAPITAL MANAGEMENT, LLC
Reporting Manager
SR One Capital Management, LLC
Security
Zenas BioPharma, Inc. Common Stock, $0.0001 par value
Symbol
ZBIO
Shares outstanding
53.6M shares
Disclosed Ownership
5.04M shares
Ownership
9.4%
Form type
SCHEDULE 13D/A
Filing time
14 Oct 2025, 17:29:18 UTC
Date of event
09 Oct 2025
SEC
View on sec.gov

Reporting Managers (8)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
SR One Capital Management, LLC 9.4% 5.04M 0 5.04M /s/ Sasha Keough Sasha Keough, as attorney-in-fact for Simeon George, M.D., Managing Member 0001853723
SR One Capital Fund II Aggregator, LP 3.6% 1.95M 0 1.95M /s/ Sasha Keough Sasha Keough, as attorney-in-fact for Simeon George, M.D., Managing Member
SR One Capital Partners II, LP 3.6% 1.95M 0 1.95M /s/ Sasha Keough Sasha Keough, as attorney-in-fact for Simeon George, M.D., Managing Member
AMZL, LP 3.6% 1.92M 0 1.92M /s/ Sasha Keough Sasha Keough, as attorney-in-fact for Simeon George, M.D., Managing Member
SR One Capital SMA Partners, LP 3.6% 1.92M 0 1.92M /s/ Sasha Keough Sasha Keough, as attorney-in-fact for Simeon George, M.D., Managing Member
SR One Capital Opportunities Fund I, LP 2.2% 1.17M 0 1.17M /s/ Sasha Keough Sasha Keough, as attorney-in-fact for Simeon George, M.D., Managing Member
SR One Capital Opportunities Partners I, LP 2.2% 1.17M 0 1.17M /s/ Sasha Keough Sasha Keough, as attorney-in-fact for Simeon George, M.D., Managing Member
Simeon George 9.4% 5.04M 0 5.04M /s/ Sasha Keough Sasha Keough, as attorney-in-fact for Simeon George, M.D.