Filing Manager
Leon O Moulder Jr.
Reporting Manager
Leon O. Moulder, Jr.
Symbol
ZBIO
Shares outstanding
41,972,920 shares
Disclosed Ownership
2,098,646 shares
Ownership
5%
Form type
SCHEDULE 13D
Filing time
06 Jun 2025, 16:10:32 UTC
Date of event
30 May 2025
Next filing
09 Oct 2025

Quoteable Key Fact

"Leon O Moulder Jr. disclosed 5% ownership in Zenas BioPharma, Inc. Common Stock, $0.0001 par value per share (ZBIO) on 30 May 2025."

Quick Takeaways

  • Leon O Moulder Jr. filed SCHEDULE 13D for Zenas BioPharma, Inc. Common Stock, $0.0001 par value per share (ZBIO).
  • Disclosed ownership: 5%.
  • Date of event: 30 May 2025.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 06 Jun 2025, 16:10.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Source Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (2)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Leon O. Moulder, Jr. 5% 2,098,646 426,607 1,672,039 /s/ Leon O. Moulder, Jr. Leon O. Moulder, Jr. 0001228865
Tellus BioVentures, LLC 4% 1,672,039 0 1,672,039 /s / Leon O. Moulder, Jr. Leon O. Moulder, Jr., Managing Member