Zenas BioPharma, Inc.
ZBIOFigures shown here come from public SEC filings. Dates beside each section show the available history.
How Zenas BioPharma, Inc. Makes Money
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Financial Summary
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SEC filings supply these figures; updates after the dates shown are not included. This page includes 3 annual periods. The latest annual period ends Dec 31, 2025. The latest insider filing shown is dated Jun 17, 2026.
Ownership
Who holds the shares, as reported in SEC ownership filings.
Independent insiders buying near the same time
- 2026-03-30–2026-03-31: 5 event(s) across 3 owner(s) — A cluster counts independent reporting owners that reported purchases within a set time. Co-filers and declared affiliates count once, and duplicate reports of the same event count once. ( filing , filing , filing , filing , filing )
- 2026-02-11–2026-02-13: 5 event(s) across 2 owner(s) — A cluster counts independent reporting owners that reported purchases within a set time. Co-filers and declared affiliates count once, and duplicate reports of the same event count once. ( filing , filing , filing , filing , filing )
- 2025-10-07–2025-10-09: 8 event(s) across 6 owner(s) — A cluster counts independent reporting owners that reported purchases within a set time. Co-filers and declared affiliates count once, and duplicate reports of the same event count once. ( filing , filing , filing , filing , filing , filing , filing , filing )
Purchases & sales (open market or private)
| Security | Code | Price | Filing | |||
|---|---|---|---|---|---|---|
| 2026-05-18 | MOULDER LEON O JR · Chief Executive Officer | Common Stock | P — Open market or private purchase | +60,000 | 16.88 | SEC filing |
| 2026-04-29 | MOULDER LEON O JR · Chief Executive Officer | Common Stock | P — Open market or private purchase | +35,000 | 17.62 | SEC filing |
| 2026-04-28 | MOULDER LEON O JR · Chief Executive Officer | Common Stock | P — Open market or private purchase | +25,000 | 18.02 | SEC filing |
| 2026-03-31 | Lu Hongbo · Director | Common Stock | P — Open market or private purchase | +75,000 | 20.00 | SEC filing |
| 2026-03-31 | Lu Hongbo · Director | Common Stock | P — Open market or private purchase | +3,768 | 18.63 | SEC filing |
| 2026-03-31 | Harwin Peter Evan · Director | Common Stock | P — Open market or private purchase | +150,000 | 20.00 | SEC filing |
| 2026-03-31 | MOULDER LEON O JR · Chief Executive Officer | Common Stock | P — Open market or private purchase | +34,000 | 19.31 | SEC filing |
| 2026-03-30 | MOULDER LEON O JR · Chief Executive Officer | Common Stock | P — Open market or private purchase | +20,000 | 18.23 | SEC filing |
Showing 8 of 10 rows
Grants, exercises, tax & gifts
| Security | Code | Filing | |||
|---|---|---|---|---|---|
| 2026-06-15 | Nunn Jason Raleigh · Director | Stock Option (Right to Buy) | A — Grant, award, or other acquisition | +18,500 | SEC filing |
| 2026-06-15 | von Moltke Lisa · See Remarks | Stock Option (Right to Buy) | A — Grant, award, or other acquisition | +150,000 | SEC filing |
| 2026-06-15 | ORLOFF JOHN J · Director | Stock Option (Right to Buy) | A — Grant, award, or other acquisition | +18,500 | SEC filing |
| 2026-06-15 | MOULDER LEON O JR · See Remarks | Stock Option (Right to Buy) | A — Grant, award, or other acquisition | +500,000 | SEC filing |
| 2026-06-15 | Lu Hongbo · Director | Stock Option (Right to Buy) | A — Grant, award, or other acquisition | +18,500 | SEC filing |
| 2026-06-15 | Allen Patricia L · Director | Stock Option (Right to Buy) | A — Grant, award, or other acquisition | +18,500 | SEC filing |
| 2026-06-15 | Fox Jennifer A. · See Remarks | Stock Option (Right to Buy) | A — Grant, award, or other acquisition | +125,000 | SEC filing |
| 2026-06-15 | ENRIGHT PATRICK G · Director | Stock Option (Right to Buy) | A — Grant, award, or other acquisition | +18,500 | SEC filing |
Showing 8 of 20 rows
These tables describe filed transactions, not current holdings. Prices are shown as filed; a currency is added only when the filing's data names one. Amended and possible duplicate rows are left out of size comparisons and transaction groups.