LEON O. MOULDER JR - 07 Oct 2025 SCHEDULE 13D/A Report for Zenas BioPharma, Inc. Common Stock, $0.0001 par value per share (ZBIO)

Filing Manager
LEON O. MOULDER JR
Reporting Manager
Leon O. Moulder, Jr.
Security
Zenas BioPharma, Inc. Common Stock, $0.0001 par value per share
Symbol
ZBIO
Shares outstanding
54.1M shares
Disclosed Ownership
2.59M shares
Ownership
4.8%
Form type
SCHEDULE 13D/A
Filing time
09 Oct 2025, 17:15:38 UTC
Date of event
07 Oct 2025
Previous filing
06 Jun 2025
SEC
View on sec.gov

Reporting Managers (3)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Leon O. Moulder, Jr. 4.8% 2.59M 886K 1.71M /s/ Leon O. Moulder, Jr. Leon O. Moulder, Jr. 0001228865
Tellus BioVentures, LLC 3.1% 1.67M 0 1.67M /s / Leon O. Moulder, Jr. Leon O. Moulder, Jr., Managing Member
Leon O. Moulder, Jr. Revocable Trust U/A dtd 9/9/2008 0.1% 36.9K 0 36.9K /s / Leon O. Moulder, Jr. Leon O. Moulder, Jr., Trustee