Theriva Biologics's top three insider shareholders as of September 29, 2026 are Steven A Shallcross (Ceo And Cfo, 10 shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Steven A Shallcross | Ceo And Cfo | 10 | 0 | 10 | 100.0% | 08 Jun, 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 |
|---|---|---|---|---|---|---|---|---|
| 05 Jan, 2026 | Jeffrey J Kraws | Director | Acquired A | 75,000 | $0.00 | $0 | 75,000 | Direct |
| 05 Jan, 2026 | John J Monahan | Director | Acquired A | 75,000 | $0.00 | $0 | 75,000 | Direct |
| 05 Jan, 2026 | Steven A Shallcross | Ceo And Cfo | Acquired A | 475,000 | $0.00 | $0 | 475,000 | Direct |
| 05 Jan, 2026 | Jeffrey Alan Wolf | Director | Acquired A | 75,000 | $0.00 | $0 | 75,000 | Direct |
| 29 Apr, 2025 | Steven A Shallcross | Ceo And Cfo | Acquired A | 190,000 | $0.00 | $0 | 190,000 | Direct |
| 29 Apr, 2025 | Jeffrey Alan Wolf | Director | Acquired A | 25,000 | $0.00 | $0 | 25,000 | Direct |
| 29 Apr, 2025 | John J Monahan | Director | Acquired A | 25,000 | $0.00 | $0 | 25,000 | Direct |
| 29 Apr, 2025 | Jeffrey J Kraws | Director | Acquired A | 25,000 | $0.00 | $0 | 25,000 | Direct |
| 14 Dec, 2023 | Jeffrey Alan Wolf | Director | Acquired A | 110,000 | $0.00 | $0 | 4 | Direct |
| 14 Dec, 2023 | Jeffrey J Kraws | Director | Acquired A | 110,000 | $0.00 | $0 | 4 | Direct |
| 14 Dec, 2023 | Steven A Shallcross | Ceo And Cfo | Acquired A | 700,000 | $0.00 | $0 | 27 | Direct |
| 14 Dec, 2023 | John J Monahan | Director | Acquired A | 110,000 | $0.00 | $0 | 4 | Direct |
| 07 Jun, 2023 | Steven A Shallcross | Ceo And Cfo | Acquired P | 14,000 | $18,194.97 | $254.73Mn | 10 | Direct |
| 06 Jun, 2023 | Steven A Shallcross | Ceo And Cfo | Acquired P | 26,000 | $16,612.00 | $431.91Mn | 9 | Direct |
| 10 Feb, 2023 | Steven A Shallcross | Ceo And Cfo | Acquired P | 25,000 | $27,380.39 | $684.51Mn | 8 | Direct |
| 02 Feb, 2023 | Steven A Shallcross | Ceo And Cfo | Acquired P | 25,000 | $24,689.61 | $617.24Mn | 7 | Direct |
| 25 Jan, 2023 | Steven A Shallcross | Ceo And Cfo | Acquired P | 25,000 | $22,917.63 | $572.94Mn | 6 | Direct |
| 20 Jan, 2023 | Steven A Shallcross | Ceo And Cfo | Acquired P | 25,000 | $19,641.43 | $491.04Mn | 5 | Direct |
| 29 Dec, 2022 | Steven A Shallcross | Ceo And Cfo | Acquired P | 100,000 | $11,471.94 | $1.15Bn | 4 | Direct |
| 15 Dec, 2022 | Francis Tufaro | Chief Operating Officer | Acquired A | 100,000 | $0.00 | $0 | 4 | Direct |