SIGA TECHNOLOGIES INC (SIGA) — insider trading
Health Care · NASDAQ
SIGA TECHNOLOGIES INC (SIGA) has 47 reported SEC Form 4 insider transactions in our data (latest 2026-06-09).
Recent Form 4 transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-06-09 | Nabel Gary J. | Director | Grant / award / vesting (derivative) | 34,169 | — | $0 | Form 4 |
| 2026-06-09 | Nabel Gary J. | Director | Option exercise / conversion (derivative) | 24,116 | — | $0 | Form 4 |
| 2026-06-09 | Nabel Gary J. | Director | Disposition to the issuer | 7,235 | $4.39 | $31.8K | Form 4 |
| 2026-06-09 | Nabel Gary J. | Director | Option exercise / conversion | 24,116 | — | — | Form 4 |
| 2026-06-09 | DURNAN JAYMIE A | Director | Grant / award / vesting (derivative) | 34,169 | — | $0 | Form 4 |
| 2026-06-09 | DURNAN JAYMIE A | Director | Option exercise / conversion (derivative) | 24,116 | — | $0 | Form 4 |
| 2026-06-09 | DURNAN JAYMIE A | Director | Disposition to the issuer | 7,235 | $4.39 | $31.8K | Form 4 |
| 2026-06-09 | DURNAN JAYMIE A | Director | Option exercise / conversion | 24,116 | — | — | Form 4 |
| 2026-06-09 | Nemirovsky Julian | Director | Grant / award / vesting (derivative) | 34,169 | — | $0 | Form 4 |
| 2026-06-09 | Nemirovsky Julian | Director | Option exercise / conversion (derivative) | 24,116 | — | $0 | Form 4 |
| 2026-06-09 | Nemirovsky Julian | Director | Disposition to the issuer | 7,235 | $4.39 | $31.8K | Form 4 |
| 2026-06-09 | Nemirovsky Julian | Director | Option exercise / conversion | 24,116 | — | — | Form 4 |
| 2026-06-09 | Phillips Holly L. | Director | Grant / award / vesting (derivative) | 34,169 | — | $0 | Form 4 |
| 2026-06-09 | Phillips Holly L. | Director | Option exercise / conversion (derivative) | 24,116 | — | $0 | Form 4 |
| 2026-06-09 | Phillips Holly L. | Director | Disposition to the issuer | 7,235 | $4.39 | $31.8K | Form 4 |
| 2026-06-09 | Phillips Holly L. | Director | Option exercise / conversion | 24,116 | — | — | Form 4 |
| 2026-06-09 | Ford Harold Eugene Jr. | Director | Grant / award / vesting (derivative) | 34,169 | — | $0 | Form 4 |
| 2026-06-09 | Ford Harold Eugene Jr. | Director | Option exercise / conversion (derivative) | 24,116 | — | $0 | Form 4 |
| 2026-06-09 | Ford Harold Eugene Jr. | Director | Disposition to the issuer | 7,235 | $4.39 | $31.8K | Form 4 |
| 2026-06-09 | Ford Harold Eugene Jr. | Director | Option exercise / conversion | 24,116 | — | — | Form 4 |
| 2026-06-09 | KEANE JOHN M | Director | Grant / award / vesting (derivative) | 34,169 | — | $0 | Form 4 |
| 2026-06-09 | KEANE JOHN M | Director | Option exercise / conversion (derivative) | 24,116 | — | $0 | Form 4 |
| 2026-06-09 | KEANE JOHN M | Director | Disposition to the issuer | 7,235 | $4.39 | $31.8K | Form 4 |
| 2026-06-09 | KEANE JOHN M | Director | Option exercise / conversion | 24,116 | — | — | Form 4 |
| 2026-06-09 | Marshall Joseph W III | Director | Grant / award / vesting (derivative) | 34,169 | — | $0 | Form 4 |
| 2026-06-09 | Marshall Joseph W III | Director | Option exercise / conversion (derivative) | 24,116 | — | $0 | Form 4 |
| 2026-06-09 | Marshall Joseph W III | Director | Disposition to the issuer | 7,235 | $4.39 | $31.8K | Form 4 |
| 2026-06-09 | Marshall Joseph W III | Director | Option exercise / conversion | 24,116 | — | — | Form 4 |
| 2026-03-25 | Miller Larry R. | Officer (General Counsel) | Option exercise / conversion (derivative) | 6,920 | — | $0 | Form 4 |
| 2026-03-25 | Miller Larry R. | Officer (General Counsel) | Shares withheld for taxes / exercise cost | 3,526 | $4.99 | $17.6K | Form 4 |
| 2026-03-25 | Miller Larry R. | Officer (General Counsel) | Option exercise / conversion | 6,920 | — | $0 | Form 4 |
| 2026-03-13 | Nguyen Diem | Director, Officer (Chief Executive Officer) | Grant / award / vesting (derivative) | 272,243 | — | $0 | Form 4 |
| 2026-03-13 | Nguyen Diem | Director, Officer (Chief Executive Officer) | Option exercise / conversion (derivative) | 85,045 | — | $0 | Form 4 |
| 2026-03-13 | Nguyen Diem | Director, Officer (Chief Executive Officer) | Shares withheld for taxes / exercise cost | 47,029 | $5.26 | $247.4K | Form 4 |
| 2026-03-13 | Nguyen Diem | Director, Officer (Chief Executive Officer) | Option exercise / conversion | 85,045 | — | $0 | Form 4 |
| 2026-03-13 | Miller Larry R. | Officer (General Counsel) | Grant / award / vesting (derivative) | 68,060 | — | $0 | Form 4 |
| 2026-03-13 | Miller Larry R. | Officer (General Counsel) | Option exercise / conversion (derivative) | 21,261 | — | $0 | Form 4 |
| 2026-03-13 | Miller Larry R. | Officer (General Counsel) | Shares withheld for taxes / exercise cost | 11,187 | $5.26 | $58.8K | Form 4 |
| 2026-03-13 | Miller Larry R. | Officer (General Counsel) | Option exercise / conversion | 21,261 | — | $0 | Form 4 |
| 2026-03-13 | Hruby Dennis E | Officer (EVP & Chief Scientific Officer) | Grant / award / vesting (derivative) | 54,942 | — | $0 | Form 4 |
| 2026-03-13 | Hruby Dennis E | Officer (EVP & Chief Scientific Officer) | Option exercise / conversion (derivative) | 11,445 | — | $0 | Form 4 |
| 2026-03-13 | Hruby Dennis E | Officer (EVP & Chief Scientific Officer) | Shares withheld for taxes / exercise cost | 3,955 | $5.26 | $20.8K | Form 4 |
| 2026-03-13 | Hruby Dennis E | Officer (EVP & Chief Scientific Officer) | Option exercise / conversion | 11,445 | — | $0 | Form 4 |
| 2026-03-13 | Luckshire Daniel J | Officer (Executive VP & CFO) | Grant / award / vesting (derivative) | 55,228 | — | $0 | Form 4 |
| 2026-03-13 | Luckshire Daniel J | Officer (Executive VP & CFO) | Option exercise / conversion (derivative) | 11,503 | — | $0 | Form 4 |
| 2026-03-13 | Luckshire Daniel J | Officer (Executive VP & CFO) | Shares withheld for taxes / exercise cost | 6,074 | $5.26 | $31.9K | Form 4 |
| 2026-03-13 | Luckshire Daniel J | Officer (Executive VP & CFO) | Option exercise / conversion | 11,503 | — | $0 | Form 4 |
Ask the chat about SIGA's insider activity →
Transaction types are the SEC Form 4 codes: open-market purchases (P) and sales (S) are the only rows that reflect open-market conviction. Awards/vesting (A), option exercises (M/X/C), shares withheld for taxes (F) and gifts (G) are compensation or mechanical, not buying or selling on the open market. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan); open-market buying is not a recommendation to buy. Informational only — not financial advice.
Source: SEC EDGAR Form 3/4/5. See the full company profile: SIGA TECHNOLOGIES INC (SIGA).
Last updated 2026-06-09 (most recent filing date).
Informational only — NOT financial advice. Insider filings are sourced from SEC EDGAR and shown with their reported dates.