14 insiders reported 37 Form 4 transactions for Zenas BioPharma, Inc. (ZBIO) over the past 18 months (most recent 2026-06-17). Recent activity: Farmer Joseph L (President and Chief Operating Officer) Buy 974 shares, Fox Jennifer A. (Chief Business Officer and Chief Financial Officer) Buy 1,592 shares, MOULDER LEON O JR (Chief Executive Officer) Buy 60,000 shares, MOULDER LEON O JR (Chief Executive Officer) Buy 25,000 shares, MOULDER LEON O JR (Chief Executive Officer) Buy 35,000 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-17 | Farmer Joseph L | President and Chief Operating Officer | Buy | 974 | $13,003 |
| 2026-06-17 | Fox Jennifer A. | Chief Business Officer and Chief Financial Officer | Buy | 1,592 | $21,253 |
| 2026-05-18 | MOULDER LEON O JR | Chief Executive Officer | Buy | 60,000 | $1.0M |
| 2026-04-29 | MOULDER LEON O JR | Chief Executive Officer | Buy | 25,000 | $450,500 |
| 2026-04-29 | MOULDER LEON O JR | Chief Executive Officer | Buy | 35,000 | $616,700 |
| 2026-04-02 | Lu Hongbo | Director | Buy | 3,768 | $70,198 |
| 2026-04-01 | Harwin Peter Evan | Director | Buy | 150,000 | $3.0M |
| 2026-04-01 | Fairmount Healthcare Fund II L.P. | Director | Buy | 150,000 | $3.0M |
| 2026-04-01 | Fairmount Funds Management LLC | Director | Buy | 150,000 | $3.0M |
| 2026-04-01 | Kiselak Tomas | Director | Buy | 150,000 | $3.0M |
| 2026-03-31 | MOULDER LEON O JR | Chief Executive Officer | Buy | 20,000 | $364,600 |
| 2026-03-31 | MOULDER LEON O JR | Chief Executive Officer | Buy | 34,000 | $656,540 |
| 2026-03-31 | Lu Hongbo | Director | Buy | 75,000 | $1.5M |
| 2026-02-13 | Lu Hongbo | Director | Buy | 25,985 | $584,662 |
| 2026-02-13 | Allen Patricia L | Director | Buy | 5,000 | $118,850 |
| 2026-02-13 | Allen Patricia L | Director | Buy | 5,700 | $138,738 |
| 2026-02-13 | Allen Patricia L | Director | Buy | 5,000 | $132,500 |
| 2026-02-13 | Allen Patricia L | Director | Buy | 4,160 | $109,658 |
| 2026-02-03 | MOULDER LEON O JR | Chief Executive Officer | Buy | 57,000 | $1.0M |
| 2026-01-09 | MOULDER LEON O JR | Chief Executive Officer | Buy | 50,000 | $819,000 |
| 2026-01-09 | MOULDER LEON O JR | Chief Executive Officer | Buy | 30,000 | $489,000 |
| 2026-01-09 | MOULDER LEON O JR | Chief Executive Officer | Buy | 20,000 | $331,000 |
| 2025-10-14 | ENRIGHT PATRICK G | Director | Buy | 105,265 | $2.0M |
| 2025-10-14 | ENRIGHT PATRICK G | Director | Buy | 11,990 | $249,992 |
| 2025-10-14 | George Simeon | 10% Owner | Buy | 63,158 | $1.2M |
来源：SEC Form 4 申报文件 · 截至 2026-06-17