As of March 23, 2026, the three largest insider holders of SIGA are Eric A Md Rose (Director, 1.07Mn shares), Thomas E Constance (Director, 327.81K shares), Daniel J Luckshire (Executive Vp Cfo, 275.06K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Eric A Md Rose | 1,068,593 | 0 | 17 Jun, 2021 | |
| Thomas E Constance | 327,806 | 0 | 17 Jun, 2021 | |
| Daniel J Luckshire | Executive Vp Cfo | 280,493 | 0 | 17 Mar, 2026 |
| Daniel J Luckshire | Executive Vp Cfo | 275,064 | 0 | 02 Jul, 2025 |
| Joseph W Iii Marshall | 229,642 | 0 | 11 Jun, 2025 | |
| Dennis E Hruby | Evp Chief Scientific Officer | 198,537 | 0 | 17 Mar, 2026 |
| Dennis E Hruby | Evp Chief Scientific Officer | 191,047 | 0 | 02 Jul, 2025 |
| Diem Nguyen | Chief Executive Officer | 138,767 | 0 | 17 Mar, 2026 |
| James Antal | 116,857 | 0 | 15 Jun, 2022 | |
| Diem Nguyen | Chief Executive Officer | 100,751 | 0 | 28 Jan, 2026 |
| Michael C. Plansky | 75,982 | 0 | 15 Jun, 2022 | |
| Jaymie A Durnan | 71,873 | 0 | 11 Jun, 2025 | |
| Julian Nemirovsky | 56,873 | 0 | 11 Jun, 2025 | |
| Gary J. Nabel | 56,873 | 0 | 11 Jun, 2025 | |
| Holly L. Phillips | 56,873 | 0 | 11 Jun, 2025 | |
| Robin Elizabeth Abrams | General Counsel And Cao | 49,787 | 0 | 03 Aug, 2021 |
| Larry R. Miller | General Counsel | 48,518 | 0 | 17 Mar, 2026 |
| Julie Kane | 48,482 | 0 | 15 Jun, 2022 | |
| Larry R. Miller | General Counsel | 38,444 | 0 | 21 Apr, 2025 |
| Harold Eugene Jr. Ford | 30,657 | 0 | 11 Jun, 2025 | |
| Evan A. Knisely | 17,298 | 0 | 13 Jun, 2024 | |
| Jay Varma | Evp Chief Medical Officer | 17,298 | 0 | 13 Jun, 2024 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 13 Mar, 2026 | Diem Nguyen | Common Stock, par value $.0001 per share | A | 85,045 | $0.00 | 185,796 | D | M |
| 13 Mar, 2026 | Larry R. Miller | Common Stock, par value $.0001 per share | A | 21,261 | $0.00 | 59,705 | D | M |
| 13 Mar, 2026 | Dennis E Hruby | Common Stock, par value $.0001 per share | A | 11,445 | $0.00 | 202,492 | D | M |
| 13 Mar, 2026 | Daniel J Luckshire | Common Stock, par value $.0001 per share | A | 11,503 | $0.00 | 286,567 | D | M |
| 13 Mar, 2026 | Larry R. Miller | Common Stock, par value $.0001 per share | D | 11,187 | $5.26 | 48,518 | D | F |
| 13 Mar, 2026 | Dennis E Hruby | Common Stock, par value $.0001 per share | D | 3,955 | $5.26 | 198,537 | D | F |
| 13 Mar, 2026 | Diem Nguyen | Common Stock, par value $.0001 per share | D | 47,029 | $5.26 | 138,767 | D | F |
| 13 Mar, 2026 | Daniel J Luckshire | Common Stock, par value $.0001 per share | D | 6,074 | $5.26 | 280,493 | D | F |
| 13 Mar, 2026 | Larry R. Miller | Restricted Stock Units | D | 21,261 | $0.00 | 42,523 | D | M |
| 13 Mar, 2026 | Daniel J Luckshire | Restricted Stock Units | D | 11,503 | $0.00 | 23,008 | D | M |
| 13 Mar, 2026 | Dennis E Hruby | Restricted Stock Units | D | 11,445 | $0.00 | 22,891 | D | M |
| 13 Mar, 2026 | Diem Nguyen | Restricted Stock Units | D | 85,045 | $0.00 | 170,092 | D | M |
| 13 Mar, 2026 | Larry R. Miller | Restricted Stock Units | A | 68,060 | $0.00 | 68,060 | D | A |
| 13 Mar, 2026 | Diem Nguyen | Restricted Stock Units | A | 272,243 | $0.00 | 272,243 | D | A |
| 13 Mar, 2026 | Dennis E Hruby | Restricted Stock Units | A | 54,942 | $0.00 | 54,942 | D | A |
| 13 Mar, 2026 | Daniel J Luckshire | Restricted Stock Units | A | 55,228 | $0.00 | 55,228 | D | A |
| 27 Jan, 2026 | Diem Nguyen | Common Stock, par value $.0001 per share | A | 55,902 | $0.00 | 123,555 | D | M |
| 27 Jan, 2026 | Diem Nguyen | Common Stock, par value $.0001 per share | A | 55,902 | $0.00 | 123,555 | D | M |
| 27 Jan, 2026 | Diem Nguyen | Common Stock, par value $.0001 per share | D | 22,804 | $6.82 | 100,751 | D | F |
| 27 Jan, 2026 | Diem Nguyen | Common Stock, par value $.0001 per share | D | 22,804 | $6.82 | 100,751 | D | F |