As of March 23, 2026, Zenas BioPharma's top three insider holders are Sciences Gp, Llc Enavate (TenPercentOwner, 3.76Mn shares), Funds Management Llc Fairmount (Director, 2.21Mn shares), One Capital Management, Llc Sr (TenPercentOwner, 1.92Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Sciences Gp, Llc Enavate | 0 | 3,761,359 | 18 Sep, 2024 | |
| Funds Management Llc Fairmount | 0 | 2,209,025 | 09 Oct, 2025 | |
| One Capital Management, Llc Sr | 0 | 1,917,895 | 14 Oct, 2025 | |
| Biomedical Innovation Master Investors (Cayman) I L.P. Wellington | 801,624 | 0 | 18 Sep, 2024 | |
| Hongbo Lu | 0 | 347,968 | 13 Feb, 2026 | |
| Ting Xiao | 47,000 | 0 | 11 Feb, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 11 Feb, 2026 | Hongbo Lu | Common Stock | A | 25,985 | $22.50 | 347,968 | I | P |
| 09 Oct, 2025 | One Capital Management, Llc Sr | Common Stock | A | 63,158 | $19.00 | 1,173,395 | I | P |
| 09 Oct, 2025 | One Capital Management, Llc Sr | Common Stock | A | 63,157 | $19.00 | 1,917,895 | I | P |
| 07 Oct, 2025 | Funds Management Llc Fairmount | Common Stock | A | 316,219 | $19.00 | 2,209,025 | I | P |
| 10 Jun, 2025 | James P Boylan | Stock Option (Right to Buy) | A | 18,500 | $0.00 | 18,500 | D | A |
| 10 Jun, 2025 | Jennifer A. Fox | Stock Option (Right to Buy) | A | 150,000 | $0.00 | 150,000 | D | A |
| 10 Jun, 2025 | Hongbo Lu | Stock Option (Right to Buy) | A | 18,500 | $0.00 | 18,500 | D | A |
| 10 Jun, 2025 | Orlando Oliveira | Stock Option (Right to Buy) | A | 100,000 | $0.00 | 100,000 | D | A |
| 10 Jun, 2025 | John J Orloff | Stock Option (Right to Buy) | A | 18,500 | $0.00 | 18,500 | D | A |
| 10 Jun, 2025 | Funds Management Llc Fairmount | Stock Option (Right to Buy) | A | 18,500 | $0.00 | 18,500 | I | A |
| 15 Apr, 2025 | Moltke Lisa Von | Stock Option (Right to Buy) | A | 400,000 | $0.00 | 400,000 | D | A |
| 07 Feb, 2025 | Ting Xiao | Common Stock | A | 10,000 | $7.76 | 47,000 | D | P |
| 16 Dec, 2024 | Orlando Oliveira | Stock Option (Right to Buy) | A | 7,775 | $0.00 | 7,775 | D | A |
| 16 Dec, 2024 | Jennifer A. Fox | Stock Option (Right to Buy) | A | 8,125 | $0.00 | 8,125 | D | A |
| 16 Sep, 2024 | Biomedical Innovation Master Investors (Cayman) I L.P. Wellington | Common Stock | A | 180,635 | - | 180,635 | D | C |
| 16 Sep, 2024 | Sciences Gp, Llc Enavate | Common Stock | A | 2,879,006 | - | 2,879,006 | I | C |
| 16 Sep, 2024 | Biomedical Innovation Master Investors (Cayman) I L.P. Wellington | Common Stock | A | 420,271 | - | 600,906 | D | C |
| 16 Sep, 2024 | Sciences Gp, Llc Enavate | Common Stock | A | 882,353 | $17.00 | 3,761,359 | I | P |
| 16 Sep, 2024 | Sciences Gp, Llc Enavate | Series B Preferred Stock | D | 10,474,889 | - | 0 | I | C |
| 16 Sep, 2024 | Biomedical Innovation Master Investors (Cayman) I L.P. Wellington | Common Stock | A | 200,718 | - | 801,624 | D | C |