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; 160 institutions reported holding it in 13F filings for Q2 2026, worth $126.9M in total; no superinvestor holds it.
13F holders, Q1 2025
Institutional positions in Siga Technologies Inc as of Mar 31, 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
- 167
- −1 vs. Q4 2024
- Shares held
- 35.1M
- +660.3K (+1.9%) vs. Q4 2024
- Total value
- $192.5M
- −$14.7M (−7.1%) vs. Q4 2024
- New holders
- 22
- 56 more added
- Sold out
- 23
- 59 more reduced
2 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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 | 160 | $126.9M |
| 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, Q1 2025
Shares, value and share of portfolio for each institution holding Siga Technologies Inc; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 3,796,176 | $20.8M | 0.00% | −80,071−2.1% | Reduced |
| Hotchkis & Wiley Capital Management LLC | 3,158,320 | $17.3M | 0.06% | +1,093,080+52.9% | Added |
| Vanguard Group Inc | 2,493,425 | $13.7M | 0.00% | +10,817+0.4% | Added |
| AltraVue Capital, LLC | 2,396,954 | $13.1M | 1.32% | −242,570−9.2% | Reduced |
| Dimensional Fund Advisors LP | 2,352,883 | $12.9M | 0.00% | +226,818+10.7% | Added |
| First Wilshire Securities Management Inc | 1,586,849 | $8.70M | 2.49% | −787,487−33.2% | Reduced |
| American Century Companies Inc | 1,370,660 | $7.51M | 0.00% | +98,688+7.8% | Added |
| Citadel Advisors LLC | 1,160,813 | $6.36M | 0.01% | +108,910+10.4% | Added |
| State Street Corp | 1,107,427 | $6.07M | 0.00% | −49,700−4.3% | Reduced |
| Geode Capital Management, LLC | 1,048,825 | $5.75M | 0.00% | −83,572−7.4% | Reduced |
| Jupiter Asset Management Ltd | 990,648 | $5.43M | 0.05% | 00.0% | Unchanged |
| Royce & Associates LP | 758,676 | $4.16M | 0.05% | −85,644−10.1% | Reduced |
| Renaissance Technologies LLC | 627,536 | $3.44M | 0.01% | +210,100+50.3% | Added |
| Arrowstreet Capital, Limited Partnership | 593,273 | $3.25M | 0.00% | +161,500+37.4% | Added |
| New York State Common Retirement Fund | 589,620 | $3.23M | 0.00% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 547,855 | $3.00M | 0.00% | −44,805−7.6% | Reduced |
| General American Investors Co Inc | 539,738 | $2.96M | 0.22% | 00.0% | Unchanged |
| Legato Capital Management LLC | 532,441 | $2.92M | 0.39% | 00.0% | Unchanged |
| Uniplan Investment Counsel, Inc. | 504,561 | $2.76M | 0.27% | +3,572+0.7% | Added |
| Northern Trust Corp | 469,594 | $2.57M | 0.00% | +4,786+1.0% | Added |
| Foundry Partners, LLC | 447,783 | $2.45M | 0.13% | +6,054+1.4% | Added |
| Denali Advisors LLC | 390,530 | $2.14M | 0.24% | +11,986+3.2% | Added |
| LSV Asset Management | 380,988 | $2.09M | 0.01% | +219,000+135.2% | Added |
| Federated Hermes, Inc. | 360,970 | $1.98M | 0.00% | +390.0% | Added |
| Charles Schwab Investment Management Inc | 360,784 | $1.98M | 0.00% | −101,404−21.9% | Reduced |
| Macquarie Group Ltd | 321,173 | $1.76M | 0.00% | −207,518−39.3% | Reduced |
| Segall Bryant & Hamill, LLC | 312,700 | $1.71M | 0.03% | −1,335−0.4% | Reduced |
| Morgan Stanley | 292,859 | $1.60M | 0.00% | +41,205+16.4% | Added |
| Bank of New York Mellon Corp | 290,433 | $1.59M | 0.00% | +721+0.2% | Added |
| Los Angeles Capital Management LLC | 285,597 | $1.57M | 0.01% | +197,754+225.1% | Added |
| Goldman Sachs Group Inc | 283,196 | $1.55M | 0.00% | −58,397−17.1% | Reduced |
| Victory Capital Management Inc | 280,041 | $1.53M | 0.00% | −28,457−9.2% | Reduced |
| State of Wisconsin Investment Board | 254,702 | $1.40M | 0.00% | −48,203−15.9% | Reduced |
| Harbor Capital Advisors, Inc. | 222,012 | $1.22M | 0.06% | +53,534+31.8% | Added |
| Ameriprise Financial Inc | 198,029 | $1.09M | 0.00% | +142,277+255.2% | Added |
| Wellington Management Group LLP | 182,328 | $999.2K | 0.00% | +62,103+51.7% | Added |
| UBS Asset Management Americas Inc | 178,845 | $980.1K | 0.00% | +44,463+33.1% | Added |
| Bank of America Corp | 166,861 | $914.4K | 0.00% | +139,641+513.0% | Added |
| Nuveen, LLC | 148,721 | $815.0K | 0.00% | +148,721 | New |
| First Trust Advisors LP | 143,085 | $784.1K | 0.00% | −3,141−2.1% | Reduced |
| Invesco Ltd. | 120,774 | $661.8K | 0.00% | −506−0.4% | Reduced |
| Jane Street Group, LLC | 114,147 | $625.5K | 0.00% | +79,965+233.9% | Added |
| Aviva PLC | 105,861 | $580.1K | 0.00% | +11,696+12.4% | Added |
| SummerHaven Investment Management, LLC | 96,208 | $527.2K | 0.37% | +2,404+2.6% | Added |
| State of Wyoming | 87,203 | $477.9K | 0.06% | +41,535+90.9% | Added |
| Martingale Asset Management L P | 86,157 | $472.1K | 0.01% | +2,684+3.2% | Added |
| Swiss National Bank | 83,900 | $459.8K | 0.00% | 00.0% | Unchanged |
| KLP Kapitalforvaltning AS | 81,200 | $445.0K | 0.00% | 00.0% | Unchanged |
| Franklin Resources Inc | 73,676 | $403.7K | 0.00% | −920−1.2% | Reduced |
| Rhumbline Advisers | 67,655 | $370.7K | 0.00% | +536+0.8% | Added |
| Barclays PLC | 65,911 | $361.2K | 0.00% | −22,067−25.1% | Reduced |
| Alliancebernstein L.P. | 65,110 | $356.8K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 61,952 | $339.5K | 0.00% | −17,093−21.6% | Reduced |
| Legal & General Group Plc | 59,470 | $325.9K | 0.00% | −474−0.8% | Reduced |
| Ashton Thomas Private Wealth, LLC | 58,737 | $321.9K | 0.01% | −11,555−16.4% | Reduced |
| Penn Mutual Asset Management, LLC | 58,280 | $319.4K | 0.61% | 00.0% | Unchanged |
| James Investment Research Inc | 53,546 | $293.4K | 0.04% | 00.0% | Unchanged |
| State of Tennessee, Treasury Department | 50,771 | $278.2K | 0.00% | +19,942+64.7% | Added |
| Kestra Advisory Services, LLC | 45,940 | $251.8K | 0.00% | −5,000−9.8% | Reduced |
| UBS Group AG | 45,839 | $251.2K | 0.00% | −16,770−26.8% | Reduced |
| Allianz Asset Management GmbH | 45,200 | $247.7K | 0.00% | −4,900−9.8% | Reduced |
| Exchange Traded Concepts, LLC | 44,631 | $244.6K | 0.00% | −4,548−9.2% | Reduced |
| Price T Rowe Associates Inc | 43,328 | $238.0K | 0.00% | +3,323+8.3% | Added |
| Engineers Gate Manager LP | 40,576 | $222.4K | 0.00% | +8,938+28.3% | Added |
| California State Teachers Retirement System | 40,272 | $220.7K | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 38,705 | $212.1K | 0.00% | −8,669−18.3% | Reduced |
| Campbell & CO Investment Adviser LLC | 38,634 | $211.7K | 0.02% | +27,598+250.1% | Added |
| SEI Investments Co | 38,320 | $210.0K | 0.00% | +38,320 | New |
| Creative Planning | 37,687 | $206.5K | 0.00% | −1,560−4.0% | Reduced |
| Deutsche Bank AG | 36,665 | $200.9K | 0.00% | −5,139−12.3% | Reduced |
| Man Group plc | 35,965 | $197.1K | 0.00% | +35,965 | New |
| Millennium Management LLC | 34,430 | $188.7K | 0.00% | −33,305−49.2% | Reduced |
| Significant Wealth Partners LLC | 34,269 | $187.8K | 0.10% | +6,052+21.4% | Added |
| DGS Capital Management, LLC | 33,201 | $181.9K | 0.05% | +13,168+65.7% | Added |
| Squarepoint Ops LLC | 30,938 | $169.5K | 0.00% | +30,938 | New |
| JPMorgan Chase & Co | 30,848 | $169.0K | 0.00% | +3,550+13.0% | Added |
| Intech Investment Management LLC | 30,397 | $166.6K | 0.00% | +5,117+20.2% | Added |
| STRS Ohio | 30,200 | $165.5K | 0.00% | −36,900−55.0% | Reduced |
| Cresset Asset Management, LLC | 28,530 | $156.3K | 0.00% | +175+0.6% | Added |
| CIBC Private Wealth Group, LLC | 26,000 | $153.9K | 0.00% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 27,742 | $152.0K | 0.00% | +27,742 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 27,593 | $151.2K | 0.00% | +1,170+4.4% | Added |
| MetLife Investment Management | 27,444 | $150.4K | 0.00% | −532−1.9% | Reduced |
| Linden Thomas Advisory Services, LLC | 26,230 | $143.7K | 0.02% | +1,938+8.0% | Added |
| HRT Financial LP | 25,704 | $140.0K | 0.00% | +5,572+27.7% | Added |
| Cim Investment Mangement Inc | 25,224 | $138.2K | 0.03% | −601−2.3% | Reduced |
| Wells Fargo & Company | 24,125 | $132.2K | 0.00% | +521+2.2% | Added |
| Principal Financial Group Inc | 24,116 | $132.2K | 0.00% | +189+0.8% | Added |
| FMR LLC | 23,962 | $131.3K | 0.00% | −18,156−43.1% | Reduced |
| Eqis Capital Management, Inc. | 23,254 | $127.4K | 0.01% | −1,339−5.4% | Reduced |
| Corebridge Financial, Inc. | 22,689 | $124.3K | 0.00% | −337−1.5% | Reduced |
| Cerity Partners LLC | 21,797 | $119.4K | 0.00% | +21,797 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 21,057 | $115.4K | 0.00% | 00.0% | Unchanged |
| Sherbrooke Park Advisers LLC | 20,293 | $111.2K | 0.05% | +6,531+47.5% | Added |
| Metis Global Partners, LLC | 20,164 | $110.5K | 0.00% | 00.0% | Unchanged |
| EP Wealth Advisors, LLC | 20,018 | $109.7K | 0.00% | +6,131+44.1% | Added |
| Davenport & Co LLC | 20,000 | $109.6K | 0.00% | −11,500−36.5% | Reduced |
| Janus Henderson Group PLC | 19,579 | $108.6K | 0.00% | 00.0% | Unchanged |
| Cambria Investment Management, L.P. | 18,691 | $102.4K | 0.01% | +18,691 | New |
| Evergreen Capital Management LLC | 18,500 | $101.4K | 0.00% | +18,500 | New |