ZBIO Zenas BioPharma, Inc.
Nasdaq · SEC CIK 1953926 · EDGAR
- Bought, last 12 months
- $24.05M 16 purchases by 8 insiders
- Sold, last 12 months
- $0 0 sales by 0 insiders
- Filings on record
- 65 since 2024-09-16, latest 2026-09-02 16:02
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| MOULDER LEON O JR | See Remarks, Dir | $6.53M | — |
| Harwin Peter Evan | Dir | $6.01M | — |
| Fairmount Funds Management LLC | Dir | $3.00M | — |
| SR ONE CAPITAL MANAGEMENT, LLC | 10% | $2.40M | — |
| ENRIGHT PATRICK G | Dir | $2.25M | — |
| Lu Hongbo | Dir | $2.15M | — |
| Nunn Jason Raleigh | Dir | $1.20M | — |
| Allen Patricia L | Dir | $499.7K | — |
| Fox Jennifer A. | See Remarks | — | — |
| Farmer Joseph L | See Remarks | — | — |
Transactions 43
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-06-17 18:00 | 2026-02-05 | ZBIO | Farmer Joseph L | See Remarks | A - Grant | $13.35 | +974 | 974 | New | +$13.0K |
| D | 2026-06-17 18:00 | 2026-02-05 | ZBIO | Fox Jennifer A. | See Remarks | A - Grant | $13.35 | +1,592 | 1,592 | New | +$21.3K |
| I | 2026-05-18 21:12 | 2026-05-18 | ZBIO | MOULDER LEON O JR | CEO, Dir | P - Purchase | $16.88 | +60.0K | 96.9K | +162% | +$1.01M |
| MI | 2026-04-29 19:21 | 2026-04-28+ | ZBIO | MOULDER LEON O JR | CEO, Dir | P - Purchase | $17.79 | +60.0K | 1.79M | +3% | +$1.07M |
| I | 2026-04-02 17:02 | 2026-03-31 | ZBIO | Lu Hongbo | Dir | P - Purchase | $18.63 | +3,768 | 426.7K | +0.9% | +$70.2K |
| I | 2026-04-01 16:30 | 2026-03-31 | ZBIO | Fairmount Funds Management LLC | Dir | P - Purchase | $20.00 | +150.0K | 2.36M | +7% | +$3.00M |
| MI | 2026-03-31 | 2026-03-30+ | ZBIO | MOULDER LEON O JR | CEO, Dir | P - Purchase | $18.91 | +54.0K | 1.73M | +3% | +$1.02M |
| I | 2026-03-31 | 2026-03-31 | ZBIO | Lu Hongbo | Dir | P - Purchase | $20.00 | +75.0K | 423.0K | +22% | +$1.50M |
| M | 2026-02-13 | 2026-02-12+ | ZBIO | Allen Patricia L | Dir | P - Purchase | $25.16 | +19.9K | 15.7K | New | +$499.7K |
| I | 2026-02-13 | 2026-02-11 | ZBIO | Lu Hongbo | Dir | P - Purchase | $22.50 | +26.0K | 348.0K | +8% | +$584.7K |
| 2026-02-03 | 2026-02-02 | ZBIO | MOULDER LEON O JR | CEO, Dir | P - Purchase | $17.96 | +57.0K | 423.2K | +16% | +$1.02M | |
| M | 2026-01-09 | 2026-01-07+ | ZBIO | MOULDER LEON O JR | CEO, Dir | P - Purchase | $16.39 | +100.0K | 346.2K | +41% | +$1.64M |
| I | 2025-10-14 | 2025-10-09 | ZBIO | ENRIGHT PATRICK G | Dir | P - Purchase | $19.00 | +105.3K | 1.83M | +6% | +$2.00M |
| 2025-10-14 | 2025-10-09 | ZBIO | ENRIGHT PATRICK G | Dir | P - Purchase | $20.85 | +12.0K | 12.0K | New | +$250.0K | |
| I | 2025-10-14 | 2025-10-09 | ZBIO | Nunn Jason Raleigh | Dir | P - Purchase | $19.00 | +63.2K | 1.17M | +6% | +$1.20M |
| MI | 2025-10-14 | 2025-10-09 | ZBIO | SR ONE CAPITAL MANAGEMENT, LLC | 10% | P - Purchase | $19.00 | +126.3K | 1.17M | +12% | +$2.40M |
| MI | 2025-10-09 | 2024-09-13+ | ZBIO | Lu Hongbo | Dir | P - Purchase | $18.63 | +322.0K | 322.0K | New | +$6.00M |
| I | 2025-10-09 | 2025-10-07 | ZBIO | Harwin Peter Evan | Dir | P - Purchase | $19.00 | +316.2K | 2.21M | +17% | +$6.01M |
| I | 2025-10-09 | 2025-10-07 | ZBIO | MOULDER LEON O JR | See Remarks, Dir | P - Purchase | $20.85 | +36.9K | 36.9K | New | +$769.9K |
| A | 2025-04-28 | 2025-02-07 | ZBIO | Xiao Ting | Dir | P - Purchase | $7.76 | +10.0K | 10.0K | New | +$77.6K |
| 2025-02-19 | 2025-02-18 | ZBIO | MOULDER LEON O JR | CEO, Dir | P - Purchase | $6.67 | +25.0K | 266.2K | +10% | +$166.8K | |
| 2025-02-11 | 2025-02-07 | ZBIO | Xiao Ting | Dir | P - Purchase | $7.76 | +10.0K | 47.0K | +27% | +$77.6K | |
| M | 2024-12-04 | 2024-12-03+ | ZBIO | MOULDER LEON O JR | CEO, Dir | P - Purchase | $10.26 | +70.0K | 196.2K | +55% | +$718.1K |
| M | 2024-11-20 | 2024-11-18+ | ZBIO | MOULDER LEON O JR | CEO, Dir | P - Purchase | $14.89 | +10.0K | 171.2K | +6% | +$148.9K |
| MI | 2024-09-20 | 2024-09-18+ | ZBIO | MOULDER LEON O JR | CEO, Dir | P - Purchase | $18.04 | +20.0K | 1.67M | +1% | +$360.8K |
| DM | 2024-09-18 | 2024-09-16 | ZBIO | Wellington Biomedical Innovation Master Investors (Cayman) I L.P. | 10% | C - Cnv Deriv | — | +801.6K | 801.6K | New | — |
| DI | 2024-09-18 | 2024-09-16 | ZBIO | Zebra Aggregator, LP | 10% | C - Cnv Deriv | — | +2.88M | 2.88M | New | — |
| DI | 2024-09-18 | 2024-09-16 | ZBIO | Zebra Aggregator, LP | 10% | P - Purchase | $17.00 | +882.4K | 3.76M | +31% | +$15.00M |
| DMA | 2024-09-17 | 2024-09-16 | ZBIO | MOULDER LEON O JR | CEO, Dir | C - Cnv Deriv | — | +156.6K | 112.9K | New | — |
| DMAI | 2024-09-17 | 2024-09-16 | ZBIO | MOULDER LEON O JR | CEO, Dir | C - Cnv Deriv | — | +536.5K | 1.65M | +48% | — |
| I | 2024-09-17 | 2024-09-13 | ZBIO | Lu Hongbo | Dir | P - Purchase | $17.00 | +58.8K | 58.8K | New | +$1000.0K |
| DMAI | 2024-09-17 | 2024-09-16 | ZBIO | Fairmount Funds Management LLC | Dir | C - Cnv Deriv | — | +1.30M | 329.0K | New | — |
| DAI | 2024-09-17 | 2024-09-16 | ZBIO | Fairmount Funds Management LLC | Dir | P - Purchase | $17.00 | +300.0K | 1.89M | +19% | +$5.10M |
| DM | 2024-09-16 | 2024-09-16 | ZBIO | MOULDER LEON O JR | CEO, Dir | C - Cnv Deriv | — | +156.6K | 108.4K | New | — |
| DMI | 2024-09-16 | 2024-09-16 | ZBIO | MOULDER LEON O JR | CEO, Dir | C - Cnv Deriv | — | +536.5K | 164.5K | New | — |
| DMI | 2024-09-16 | 2024-09-16 | ZBIO | Nunn Jason Raleigh | Dir | C - Cnv Deriv | — | +2.17M | 669.1K | New | — |
| DMI | 2024-09-16 | 2024-09-16 | ZBIO | Nunn Jason Raleigh | Dir | P - Purchase | $17.00 | +882.4K | 1.11M | +387% | +$15.00M |
| DMI | 2024-09-16 | 2024-09-16 | ZBIO | ENRIGHT PATRICK G | Dir | C - Cnv Deriv | — | +2.06M | 1.73M | New | — |
| DI | 2024-09-16 | 2024-09-16 | ZBIO | ENRIGHT PATRICK G | Dir | P - Purchase | $17.00 | +440.0K | 774.5K | +132% | +$7.48M |
| DMI | 2024-09-16 | 2024-09-16 | ZBIO | Harwin Peter Evan | Dir | C - Cnv Deriv | — | +1.30M | 41.1K | New | — |
| DI | 2024-09-16 | 2024-09-16 | ZBIO | Harwin Peter Evan | Dir | P - Purchase | $17.00 | +300.0K | 1.60M | +23% | +$5.10M |
| DMI | 2024-09-16 | 2024-09-16 | ZBIO | SR ONE CAPITAL MANAGEMENT, LLC | 10% | C - Cnv Deriv | — | +2.68M | 1.51M | New | — |
| DMI | 2024-09-16 | 2024-09-16 | ZBIO | SR ONE CAPITAL MANAGEMENT, LLC | 10% | P - Purchase | $17.00 | +2.24M | 1.95M | New | +$38.00M |
Purchase Sale Sale after option exercise All abbreviations