Siga Technologies Inc
SIGA- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001010086
No open-market purchases or sales by Siga Technologies Inc insiders were filed in the last 90 days; 161 institutions reported holding it in 13F filings for Q2 2026, worth $127.0M in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in Siga Technologies Inc as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 197
- +20 vs. Q2 2025
- Shares held
- 34.0M
- −461.6K (−1.3%) vs. Q2 2025
- Total value
- $311.0M
- +$86.3M (+38.4%) vs. Q2 2025
- New holders
- 37
- 68 more added
- Sold out
- 17
- 56 more reduced
1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting SIGA on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 161 | $127.0M |
| Q1 2026 | 183 | $184.0M |
| Q4 2025 | 200 | $219.1M |
| Q3 2025 | 197 | $311.0M |
| Q2 2025 | 178 | $224.8M |
| Q1 2025 | 167 | $192.5M |
| Q4 2024 | 170 | $208.0M |
| Q3 2024 | 169 | $240.7M |
| Q2 2024 | 151 | $256.6M |
| Q1 2024 | 144 | $288.1M |
| Q4 2023 | 131 | $190.9M |
| Q3 2023 | 129 | $180.8M |
| Q2 2023 | 131 | $168.1M |
| Q1 2023 | 142 | $182.1M |
| Q4 2022 | 160 | $227.9M |
| Q3 2022 | 155 | $296.8M |
| Q2 2022 | 142 | $302.3M |
| Q1 2022 | 110 | $150.5M |
| Q4 2021 | 116 | $166.7M |
| Q3 2021 | 104 | $159.6M |
| Q2 2021 | 102 | $128.2M |
| Q1 2021 | 105 | $139.8M |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Siga Technologies Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| HRT Financial LP | 0 | $0 | 0.00% | −47,044−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −36,576−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −32,100−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −28,936−100.0% | Sold out |
| Kapitalo Investimentos Ltda | 0 | $0 | 0.00% | −28,089−100.0% | Sold out |
| Oxford Asset Management LLP | 0 | $0 | 0.00% | −27,112−100.0% | Sold out |
| Eqis Capital Management, Inc. | 0 | $0 | 0.00% | −16,799−100.0% | Sold out |
| Voya Investment Management LLC | 0 | $0 | 0.00% | −13,065−100.0% | Sold out |
| ProShare Advisors LLC | 0 | $0 | 0.00% | −11,089−100.0% | Sold out |
| Skopos Labs, Inc. | 0 | $0 | 0.00% | −5,829−100.0% | Sold out |
| Clear Street Markets LLC | 0 | $0 | 0.00% | −4,365−100.0% | Sold out |
| Steward Partners Investment Advisory, LLC | 0 | $0 | 0.00% | −2,900−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −1,049−100.0% | Sold out |
| Stephens Consulting, LLC | 0 | $0 | 0.00% | −65−100.0% | Sold out |
| EP Wealth Advisors, LLC | – | – | – | – | Not filed |