Quick Takeaways
- Leon O Moulder Jr. filed SCHEDULE 13D for Zenas BioPharma, Inc. Common Stock, $0.0001 par value per share (ZBIO).
- Disclosed ownership: 5.2%.
- Date of event: 07 Jan 2026.
Leon O Moulder Jr. - 07 Jan 2026 SCHEDULE 13D 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.
- Symbol
- ZBIO
- Shares outstanding
- 54,405,738 shares
- Disclosed Ownership
- 2,806,792 shares
- Ownership
- 5.2%
- Form type
- SCHEDULE 13D
- Filing time
- 14 Jan 2026, 16:30:54 UTC
- Date of event
- 07 Jan 2026
- Previous filing
- 09 Oct 2025
- Next filing
- 02 Apr 2026
- SEC
- View on sec.gov
Quoteable Key Fact
"Leon O Moulder Jr. disclosed 5.2% ownership in Zenas BioPharma, Inc. Common Stock, $0.0001 par value per share (ZBIO) on 07 Jan 2026."
What Changed
- Previous schedule filing date: 09 Oct 2025.
- Current filing was accepted on 14 Jan 2026, 16:30.
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.
Official SEC Source
Backed by Schedule 13D/13G
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
See Original FilingReporting Managers (3)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Leon O. Moulder, Jr. | 5.2% | 2,806,792 | 1,097,825 | 1,708,967 | /s/ Leon O. Moulder, Jr. | Leon O. Moulder, Jr. | 0001228865 |
| Tellus BioVentures, LLC | 3.1% | 1,672,039 | 0 | 1,672,039 | /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% | 36,928 | 0 | 36,928 | /s/ Leon O. Moulder, Jr. | Leon O. Moulder, Jr., Trustee |