SIGA Technologies, Inc. (SIGA) Insider Trading
Over the last 6 months, 68 institutions increased and 71 reduced their position (13F).
Insider Activity
Sentiment
50/100
Buys (3m)
0
Sells (3m)
0
Net (3m)
$0
Insider trades by month Buys Sells
Jun
Jul
Aug
Dec
Aug
Dec
Context3-month price -36.5%Institutions reducing (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jun 10, 2026 | Phillips Holly L.director | Grant | 34,169 | — |
| Jun 10, 2026 | Phillips Holly L.director | Option | 24,116 | — |
| Jun 10, 2026 | Marshall Joseph W IIIdirector | Grant | 34,169 | — |
| Jun 10, 2026 | Nemirovsky Juliandirector | Option | 24,116 | — |
| Jun 10, 2026 | DURNAN JAYMIE Adirector | Option | 24,116 | — |
| Jun 10, 2026 | Ford Harold Eugene Jr.director | Grant | 34,169 | — |
| Jun 10, 2026 | Nemirovsky Juliandirector | Grant | 34,169 | — |
| Jun 10, 2026 | KEANE JOHN Mdirector | Grant | 34,169 | — |
| Jun 10, 2026 | Marshall Joseph W IIIdirector | Option | 24,116 | — |
| Jun 10, 2026 | Nabel Gary J.director | Grant | 34,169 | — |
| Jun 10, 2026 | KEANE JOHN Mdirector | Option | 24,116 | — |
| Jun 10, 2026 | Ford Harold Eugene Jr.director | Option | 24,116 | — |
| Jun 10, 2026 | DURNAN JAYMIE Adirector | Grant | 34,169 | — |
| Jun 10, 2026 | Nabel Gary J.director | Option | 24,116 | — |
| Mar 26, 2026 | Miller Larry R.officer: General Counsel | Option | 6,920 | — |
| Mar 26, 2026 | Miller Larry R.officer: General Counsel | Tax | 3,526 | $4.99 |
| Mar 17, 2026 | Nguyen Diemdirector, officer: Chief Executive Officer | Option | 85,045 | — |
| Mar 17, 2026 | Miller Larry R.officer: General Counsel | Grant | 68,060 | — |
| Mar 17, 2026 | Hruby Dennis Eofficer: EVP & Chief Scientific Officer | Grant | 54,942 | — |
| Mar 17, 2026 | Hruby Dennis Eofficer: EVP & Chief Scientific Officer | Option | 11,445 | — |
| Mar 17, 2026 | Nguyen Diemdirector, officer: Chief Executive Officer | Grant | 272,243 | — |
| Mar 17, 2026 | Luckshire Daniel Jofficer: Executive VP & CFO | Tax | 6,074 | $5.26 |
| Mar 17, 2026 | Luckshire Daniel Jofficer: Executive VP & CFO | Grant | 55,228 | — |
| Mar 17, 2026 | Luckshire Daniel Jofficer: Executive VP & CFO | Option | 11,503 | — |
| Mar 17, 2026 | Hruby Dennis Eofficer: EVP & Chief Scientific Officer | Tax | 3,955 | $5.26 |
| Mar 17, 2026 | Miller Larry R.officer: General Counsel | Tax | 11,187 | $5.26 |
| Mar 17, 2026 | Miller Larry R.officer: General Counsel | Option | 21,261 | — |
| Mar 17, 2026 | Nguyen Diemdirector, officer: Chief Executive Officer | Tax | 47,029 | $5.26 |
| Jan 28, 2026 | Nguyen Diemdirector, officer: Chief Executive Officer | Option | 55,902 | — |
| Jan 28, 2026 | Nguyen Diemdirector, officer: Chief Executive Officer | Tax | 22,804 | $6.82 |
Source: SIGA SEC Form 4 filings, latest Jun 10, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their SIGA positions over the last 6 months (SEC Form 13F).
Increased
68
New positions
27
Reduced
71
Sold out
181
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Reduced | 3.5M | May 13, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Increased | 2.7M | May 7, 2026 |
| ALTRAVUE CAPITAL, LLC | Increased | 2.4M | May 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 1.7M | May 15, 2026 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Increased | 1.5M | May 14, 2026 |
| AMERICAN CENTURY COMPANIES INC | Increased | 1.3M | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.3M | May 15, 2026 |
| AQR CAPITAL MANAGEMENT LLC | Increased | 1.2M | May 15, 2026 |
| STATE STREET CORP | Reduced | 1.0M | May 15, 2026 |
| FIRST WILSHIRE SECURITIES MANAGEMENT INC | Increased | 890K | May 12, 2026 |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | Increased | 827K | May 15, 2026 |
| CITADEL ADVISORS LLC | Reduced | 705K | May 15, 2026 |
| ROYCE & ASSOCIATES LP | Increased | 668K | May 12, 2026 |
| GOLDMAN SACHS GROUP INC | Increased | 647K | Mar 25, 2026 |
| GOLDMAN SACHS GROUP INC | Reduced | 625K | May 15, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.