Theriva Biologics's three largest insider shareholders as of March 23, 2026 are Steven A Shallcross (Ceo And Cfo, 250.00K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Steven A Shallcross | Ceo And Cfo | 250,000 | 0 | 08 Jun, 2023 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 05 Jan, 2026 | Jeffrey J Kraws | Stock Options (right to buy) | A | 75,000 | $0.00 | 75,000 | D | A |
| 05 Jan, 2026 | Jeffrey Alan Wolf | Stock Options (right to buy) | A | 75,000 | $0.00 | 75,000 | D | A |
| 05 Jan, 2026 | John J Monahan | Stock Options (right to buy) | A | 75,000 | $0.00 | 75,000 | D | A |
| 05 Jan, 2026 | Steven A Shallcross | Stock Options (right to buy) | A | 475,000 | $0.00 | 475,000 | D | A |
| 29 Apr, 2025 | Jeffrey Alan Wolf | Stock Options (right to buy) | A | 25,000 | $0.00 | 25,000 | D | A |
| 29 Apr, 2025 | Steven A Shallcross | Stock Options (right to buy) | A | 190,000 | $0.00 | 190,000 | D | A |
| 29 Apr, 2025 | John J Monahan | Stock Options (right to buy) | A | 25,000 | $0.00 | 25,000 | D | A |
| 29 Apr, 2025 | Jeffrey J Kraws | Stock Options (right to buy) | A | 25,000 | $0.00 | 25,000 | D | A |
| 14 Dec, 2023 | Steven A Shallcross | Stock Options (right to buy) | A | 700,000 | $0.00 | 700,000 | D | A |
| 14 Dec, 2023 | Jeffrey J Kraws | Stock Options (right to buy) | A | 110,000 | $0.00 | 110,000 | D | A |
| 14 Dec, 2023 | John J Monahan | Stock Options (right to buy) | A | 110,000 | $0.00 | 110,000 | D | A |
| 14 Dec, 2023 | Jeffrey Alan Wolf | Stock Options (right to buy) | A | 110,000 | $0.00 | 110,000 | D | A |
| 07 Jun, 2023 | Steven A Shallcross | Common Stock | A | 14,000 | $0.69 | 250,000 | D | P |
| 06 Jun, 2023 | Steven A Shallcross | Common Stock | A | 26,000 | $0.63 | 236,000 | D | P |
| 10 Feb, 2023 | Steven A Shallcross | Common Stock | A | 25,000 | $1.04 | 210,000 | D | P |
| 02 Feb, 2023 | Steven A Shallcross | Common Stock | A | 25,000 | $0.94 | 185,000 | D | P |
| 25 Jan, 2023 | Steven A Shallcross | Common Stock | A | 25,000 | $0.87 | 160,000 | D | P |
| 20 Jan, 2023 | Steven A Shallcross | Common Stock | A | 25,000 | $0.75 | 135,000 | D | P |
| 29 Dec, 2022 | Steven A Shallcross | Common Stock | A | 100,000 | $0.44 | 110,000 | D | P |
| 15 Dec, 2022 | Jeffrey Alan Wolf | Stock Options (right to buy) | A | 100,000 | $0.00 | 100,000 | D | A |