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, 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 | 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, 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 |
|---|---|---|---|---|---|
| Campbell & CO Investment Adviser LLC | 38,634 | $211.7K | 0.02% | +27,598+250.1% | Added |
| Citigroup Inc | 38,705 | $212.1K | 0.00% | −8,669−18.3% | Reduced |
| California State Teachers Retirement System | 40,272 | $220.7K | 0.00% | 00.0% | Unchanged |
| Engineers Gate Manager LP | 40,576 | $222.4K | 0.00% | +8,938+28.3% | Added |
| Price T Rowe Associates Inc | 43,328 | $238.0K | 0.00% | +3,323+8.3% | Added |
| Exchange Traded Concepts, LLC | 44,631 | $244.6K | 0.00% | −4,548−9.2% | Reduced |
| Allianz Asset Management GmbH | 45,200 | $247.7K | 0.00% | −4,900−9.8% | Reduced |
| UBS Group AG | 45,839 | $251.2K | 0.00% | −16,770−26.8% | Reduced |
| Kestra Advisory Services, LLC | 45,940 | $251.8K | 0.00% | −5,000−9.8% | Reduced |
| State of Tennessee, Treasury Department | 50,771 | $278.2K | 0.00% | +19,942+64.7% | Added |
| James Investment Research Inc | 53,546 | $293.4K | 0.04% | 00.0% | Unchanged |
| Penn Mutual Asset Management, LLC | 58,280 | $319.4K | 0.61% | 00.0% | Unchanged |
| Ashton Thomas Private Wealth, LLC | 58,737 | $321.9K | 0.01% | −11,555−16.4% | Reduced |
| Legal & General Group Plc | 59,470 | $325.9K | 0.00% | −474−0.8% | Reduced |
| Susquehanna International Group, LLP | 61,952 | $339.5K | 0.00% | −17,093−21.6% | Reduced |
| Alliancebernstein L.P. | 65,110 | $356.8K | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 65,911 | $361.2K | 0.00% | −22,067−25.1% | Reduced |
| Rhumbline Advisers | 67,655 | $370.7K | 0.00% | +536+0.8% | Added |
| Franklin Resources Inc | 73,676 | $403.7K | 0.00% | −920−1.2% | Reduced |
| KLP Kapitalforvaltning AS | 81,200 | $445.0K | 0.00% | 00.0% | Unchanged |
| Swiss National Bank | 83,900 | $459.8K | 0.00% | 00.0% | Unchanged |
| Martingale Asset Management L P | 86,157 | $472.1K | 0.01% | +2,684+3.2% | Added |
| State of Wyoming | 87,203 | $477.9K | 0.06% | +41,535+90.9% | Added |
| SummerHaven Investment Management, LLC | 96,208 | $527.2K | 0.37% | +2,404+2.6% | Added |
| Aviva PLC | 105,861 | $580.1K | 0.00% | +11,696+12.4% | Added |
| Jane Street Group, LLC | 114,147 | $625.5K | 0.00% | +79,965+233.9% | Added |
| Invesco Ltd. | 120,774 | $661.8K | 0.00% | −506−0.4% | Reduced |
| First Trust Advisors LP | 143,085 | $784.1K | 0.00% | −3,141−2.1% | Reduced |
| Nuveen, LLC | 148,721 | $815.0K | 0.00% | +148,721 | New |
| Bank of America Corp | 166,861 | $914.4K | 0.00% | +139,641+513.0% | Added |
| UBS Asset Management Americas Inc | 178,845 | $980.1K | 0.00% | +44,463+33.1% | Added |
| Wellington Management Group LLP | 182,328 | $999.2K | 0.00% | +62,103+51.7% | Added |
| Ameriprise Financial Inc | 198,029 | $1.09M | 0.00% | +142,277+255.2% | Added |
| Harbor Capital Advisors, Inc. | 222,012 | $1.22M | 0.06% | +53,534+31.8% | Added |
| State of Wisconsin Investment Board | 254,702 | $1.40M | 0.00% | −48,203−15.9% | Reduced |
| Victory Capital Management Inc | 280,041 | $1.53M | 0.00% | −28,457−9.2% | Reduced |
| Goldman Sachs Group Inc | 283,196 | $1.55M | 0.00% | −58,397−17.1% | Reduced |
| Los Angeles Capital Management LLC | 285,597 | $1.57M | 0.01% | +197,754+225.1% | Added |
| Bank of New York Mellon Corp | 290,433 | $1.59M | 0.00% | +721+0.2% | Added |
| Morgan Stanley | 292,859 | $1.60M | 0.00% | +41,205+16.4% | Added |
| Segall Bryant & Hamill, LLC | 312,700 | $1.71M | 0.03% | −1,335−0.4% | Reduced |
| Macquarie Group Ltd | 321,173 | $1.76M | 0.00% | −207,518−39.3% | Reduced |
| Charles Schwab Investment Management Inc | 360,784 | $1.98M | 0.00% | −101,404−21.9% | Reduced |
| Federated Hermes, Inc. | 360,970 | $1.98M | 0.00% | +390.0% | Added |
| LSV Asset Management | 380,988 | $2.09M | 0.01% | +219,000+135.2% | Added |
| Denali Advisors LLC | 390,530 | $2.14M | 0.24% | +11,986+3.2% | Added |
| Foundry Partners, LLC | 447,783 | $2.45M | 0.13% | +6,054+1.4% | Added |
| Northern Trust Corp | 469,594 | $2.57M | 0.00% | +4,786+1.0% | Added |
| Uniplan Investment Counsel, Inc. | 504,561 | $2.76M | 0.27% | +3,572+0.7% | Added |
| Legato Capital Management LLC | 532,441 | $2.92M | 0.39% | 00.0% | Unchanged |
| General American Investors Co Inc | 539,738 | $2.96M | 0.22% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 547,855 | $3.00M | 0.00% | −44,805−7.6% | Reduced |
| New York State Common Retirement Fund | 589,620 | $3.23M | 0.00% | 00.0% | Unchanged |
| Arrowstreet Capital, Limited Partnership | 593,273 | $3.25M | 0.00% | +161,500+37.4% | Added |
| Renaissance Technologies LLC | 627,536 | $3.44M | 0.01% | +210,100+50.3% | Added |
| Royce & Associates LP | 758,676 | $4.16M | 0.05% | −85,644−10.1% | Reduced |
| Jupiter Asset Management Ltd | 990,648 | $5.43M | 0.05% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 1,048,825 | $5.75M | 0.00% | −83,572−7.4% | Reduced |
| State Street Corp | 1,107,427 | $6.07M | 0.00% | −49,700−4.3% | Reduced |
| Citadel Advisors LLC | 1,160,813 | $6.36M | 0.01% | +108,910+10.4% | Added |
| American Century Companies Inc | 1,370,660 | $7.51M | 0.00% | +98,688+7.8% | Added |
| First Wilshire Securities Management Inc | 1,586,849 | $8.70M | 2.49% | −787,487−33.2% | Reduced |
| Dimensional Fund Advisors LP | 2,352,883 | $12.9M | 0.00% | +226,818+10.7% | Added |
| AltraVue Capital, LLC | 2,396,954 | $13.1M | 1.32% | −242,570−9.2% | Reduced |
| Vanguard Group Inc | 2,493,425 | $13.7M | 0.00% | +10,817+0.4% | Added |
| Hotchkis & Wiley Capital Management LLC | 3,158,320 | $17.3M | 0.06% | +1,093,080+52.9% | Added |
| BlackRock, Inc. | 3,796,176 | $20.8M | 0.00% | −80,071−2.1% | Reduced |
| Prudential Financial Inc | 0 | $0 | 0.00% | −188,970−100.0% | Sold out |
| Winton Group Ltd | 0 | $0 | 0.00% | −101,644−100.0% | Sold out |
| Alps Advisors Inc | 0 | $0 | 0.00% | −44,250−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −44,017−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −35,827−100.0% | Sold out |
| Cornercap Investment Counsel Inc | 0 | $0 | 0.00% | −34,894−100.0% | Sold out |
| Oxford Asset Management LLP | 0 | $0 | 0.00% | −33,735−100.0% | Sold out |
| Allspring Global Investments Holdings, LLC | 0 | $0 | 0.00% | −31,183−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −22,819−100.0% | Sold out |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 0 | $0 | 0.00% | −19,902−100.0% | Sold out |
| Bailard, Inc. | 0 | $0 | 0.00% | −18,800−100.0% | Sold out |
| O'Shaughnessy Asset Management, LLC | 0 | $0 | 0.00% | −16,010−100.0% | Sold out |
| Wedbush Securities Inc | 0 | $0 | 0.00% | −15,914−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −13,037−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −10,491−100.0% | Sold out |
| DekaBank Deutsche Girozentrale | 0 | $0 | 0.00% | −5,160−100.0% | Sold out |
| US Bancorp | 0 | $0 | 0.00% | −2,414−100.0% | Sold out |
| Northwestern Mutual Wealth Management Co | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| Venturi Wealth Management, LLC | 0 | $0 | 0.00% | −776−100.0% | Sold out |
| GAMMA Investing LLC | 0 | $0 | 0.00% | −137−100.0% | Sold out |
| Synergy Financial Management, LLC | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Jones Financial Companies LLLP | 0 | $0 | 0.00% | −39−100.0% | Sold out |
| Sunbelt Securities, Inc. | 0 | $0 | 0.00% | −27−100.0% | Sold out |
| Nuveen Asset Management, LLC | – | – | – | – | Not filed |
| Global Retirement Partners, LLC | – | – | – | – | Not filed |