As of September 29, 2026, In8Bio's top three insider holders are William Tai-Wei Ho (President And Ceo, 121.17K shares), Peter C. Brandt (Director, 95.18K shares), Alan S. Roemer (Director, 49.51K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | William Tai-Wei Ho | President And Ceo | 121,168 | 0 | 121,168 | 36.8% | 23 Dec, 2025 |
| 2 | Peter C. Brandt | Director | 95,181 | 0 | 95,181 | 28.9% | 23 Dec, 2025 |
| 3 | Alan S. Roemer | Director | 49,514 | 0 | 49,514 | 15.0% | 23 Dec, 2025 |
| 4 | Aaron G.L. Fletcher | Director, TenPercentOwner | 0 | 19,022 | 19,022 | 5.8% | 13 Dec, 2022 |
| 5 | Leslie W. Kreis | Director, TenPercentOwner | 0 | 19,022 | 19,022 | 5.8% | 13 Dec, 2022 |
| 6 | Patrick Mccall | Chief Financial Officer | 9,482 | 0 | 9,482 | 2.9% | 23 Dec, 2025 |
| 7 | Kate Rochlin | Chief Operating Officer | 9,085 | 0 | 9,085 | 2.8% | 23 Dec, 2025 |
| 8 | Lawrence Lamb | Evp And Cso | 3,379 | 0 | 3,379 | 1.0% | 15 Dec, 2023 |
| 9 | Corinne Epperly | Director | 2,732 | 0 | 2,732 | 0.8% | 15 Dec, 2023 |
| 10 | Luba Greenwood | Director | 261 | 0 | 261 | 0.1% | 18 Aug, 2022 |
| 11 | Trishna Goswami | Chief Medical Officer | 224 | 0 | 224 | 0.1% | 15 Dec, 2023 |
| 12 | Jeremy R. Graff | Director | 152 | 0 | 152 | 0.0% | 15 Dec, 2023 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 27 May, 2026 | Emily Fairbairn | Director | Disposed G | 724,637 | $0.00 | $0 | 0 | Indirect |
| 09 May, 2026 | Corinne Epperly | Director | Acquired A | 22,000 | $0.00 | $0 | 22,000 | Direct |
| 09 May, 2026 | Peter C. Brandt | Director | Acquired A | 22,000 | $0.00 | $0 | 22,000 | Direct |
| 09 May, 2026 | Patrick Mccall | Chief Financial Officer | Acquired A | 56,250 | $0.00 | $0 | 56,250 | Direct |
| 09 May, 2026 | Luba Greenwood | Director | Acquired A | 22,000 | $0.00 | $0 | 22,000 | Direct |
| 09 May, 2026 | Emily Fairbairn | Director | Acquired A | 22,000 | $0.00 | $0 | 22,000 | Direct |
| 09 May, 2026 | Kate Rochlin | President And Coo | Acquired A | 60,000 | $0.00 | $0 | 60,000 | Direct |
| 09 May, 2026 | Jeremy R. Graff | Director | Acquired A | 22,000 | $0.00 | $0 | 22,000 | Direct |
| 09 May, 2026 | Lawrence Lamb | Evp And Cso | Acquired A | 54,000 | $0.00 | $0 | 54,000 | Direct |
| 09 May, 2026 | William Tai-Wei Ho | Ceo | Acquired A | 154,500 | $0.00 | $0 | 154,500 | Direct |
| 04 Feb, 2026 | Patrick Mccall | Chief Financial Officer | Acquired A | 75,000 | $0.00 | $0 | 75,000 | Direct |
| 04 Feb, 2026 | Kate Rochlin | President And Coo | Acquired A | 80,000 | $0.00 | $0 | 80,000 | Direct |
| 04 Feb, 2026 | Lawrence Lamb | Evp And Cso | Acquired A | 72,000 | $0.00 | $0 | 72,000 | Direct |
| 04 Feb, 2026 | William Tai-Wei Ho | Ceo | Acquired A | 206,000 | $0.00 | $0 | 206,000 | Direct |
| 22 Dec, 2025 | William Tai-Wei Ho | President And Ceo | Acquired A | 36,232 | $1.38 | $50.00K | 121,168 | Direct |
| 22 Dec, 2025 | Kate Rochlin | Chief Operating Officer | Acquired A | 7,247 | $1.38 | $10.00K | 9,085 | Direct |
| 22 Dec, 2025 | Patrick Mccall | Chief Financial Officer | Acquired A | 7,247 | $1.38 | $10.00K | 9,482 | Direct |
| 22 Dec, 2025 | Alan S. Roemer | Director | Acquired A | 36,232 | $1.38 | $50.00K | 49,514 | Direct |
| 22 Dec, 2025 | Emily Fairbairn | Director | Acquired A | 724,637 | $1.38 | $1,000.00K | 724,637 | Indirect |
| 22 Dec, 2025 | Peter C. Brandt | Director | Acquired A | 72,464 | $1.38 | $100.00K | 95,181 | Direct |