| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Zenas Biopharma, Inc. (ZBIO) has 12 insiders with recent SEC Form 4 filings, including 16 buys and 0 sells. ZBIO is classified in the Biotechnology industry within the Health Care sector.
| Role | Insider | Shares | Value | 30d |
|---|---|---|---|---|
| Dir | 2.21M | $42.57M | - | |
| Dir | 1.83M | $35.32M | - | |
| CEO | 1.79M | $34.42M | +60.0K | |
| Dir | 1.17M | $22.61M | - | |
| 10% | 1.17M | $22.61M | - |
Buys and sells only
| Date | Insider | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Apr 29, 2026 | Moulder Leon O Jr79 | Chief Executive Officer | Buy | 60,000 | $17.79 | $1,067,200.00 | +1.7% | - | - | |
| Mar 31, 2026 | Moulder Leon O Jr79 | Chief Executive Officer | Buy | 54,000 | $18.91 | $1,021,140.00 | +1.6% | - | - | |
| Jan 9, 2026 | Moulder Leon O Jr79 | Chief Executive Officer | Buy | 100,000 | $16.39 | $1,639,000.00 | +10.8% | +32.3% | - | |
| Oct 9, 2025 | Nunn Jason Raleigh | Director | Buy | 63,158 | $19.00 | $1,200,002.00 | +5.7% | -40.5% | - | |
| Oct 9, 2025 | Sr One Capital Management, LLC52 | 10% Owner | Buy | 126,315 | $19.00 | $2,399,985.00 | +4.3% | -40.5% | - | |
| Oct 9, 2025 | Enright Patrick G74 | Director | Buy | 117,255 | $19.19 | $2,250,026.50 | +6.8% | -40.5% | - | |
| Oct 7, 2025 | Moulder Leon O Jr79 | See Remarks | Buy | 36,928 | $20.85 | $769,948.80 | New | -20.3% | - | |
| Oct 7, 2025 | Fairmount Funds Management LLC73 | Director | Buy | 316,219 | $19.00 | $6,008,161.00 | +16.7% | -20.3% | - | |
| Oct 7, 2025 | Lu Hongbo59 | Director | Buy | 263,160 | $19.00 | $5,000,040.00 | +447.4% | -20.3% | - | |
| Feb 18, 2025 | Moulder Leon O Jr79 | Chief Executive Officer | Buy | 25,000 | $6.67 | $166,750.00 | +10.4% | +65.6% | +301.2% |