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, Q2 2025
Institutional positions in Siga Technologies Inc as of Jun 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
- 178
- +13 vs. Q1 2025
- Shares held
- 34.5M
- −202.0K (−0.6%) vs. Q1 2025
- Total value
- $224.8M
- +$34.7M (+18.3%) vs. Q1 2025
- New holders
- 35
- 62 more added
- Sold out
- 22
- 52 more reduced
2 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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 | 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, Q2 2025
Shares, value and share of portfolio for each institution holding Siga Technologies Inc; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| State of Tennessee, Treasury Department | 30,708 | $200.2K | 0.00% | −20,063−39.5% | Reduced |
| Two Sigma Advisers, LP | 32,100 | $209.3K | 0.00% | +32,100 | New |
| Principal Financial Group Inc | 32,276 | $210.4K | 0.00% | +8,160+33.8% | Added |
| Creative Planning | 34,546 | $225.2K | 0.00% | −3,141−8.3% | Reduced |
| UBS Group AG | 34,761 | $226.6K | 0.00% | −11,078−24.2% | Reduced |
| Man Group plc | 36,199 | $236.0K | 0.00% | +234+0.7% | Added |
| Tudor Investment Corp Et Al | 36,576 | $238.5K | 0.00% | +36,576 | New |
| Penn Mutual Asset Management, LLC | 38,280 | $249.6K | 0.44% | −20,000−34.3% | Reduced |
| Exchange Traded Concepts, LLC | 39,223 | $255.7K | 0.00% | −5,408−12.1% | Reduced |
| California State Teachers Retirement System | 40,272 | $262.6K | 0.00% | 00.0% | Unchanged |
| State of Wyoming | 40,302 | $262.8K | 0.03% | −46,901−53.8% | Reduced |
| Price T Rowe Associates Inc | 42,765 | $279.0K | 0.00% | −563−1.3% | Reduced |
| Significant Wealth Partners LLC | 43,721 | $285.1K | 0.14% | +9,452+27.6% | Added |
| HRT Financial LP | 47,044 | $306.0K | 0.00% | +21,340+83.0% | Added |
| Cim Investment Mangement Inc | 50,635 | $317.0K | 0.06% | +25,411+100.7% | Added |
| Walleye Capital LLC | 49,080 | $320.0K | 0.00% | +49,080 | New |
| Davenport & Co LLC | 50,000 | $326.0K | 0.00% | +30,000+150.0% | Added |
| Aviva PLC | 51,144 | $333.5K | 0.00% | −54,717−51.7% | Reduced |
| Legal & General Group Plc | 53,094 | $346.2K | 0.00% | −6,376−10.7% | Reduced |
| James Investment Research Inc | 53,546 | $349.1K | 0.04% | 00.0% | Unchanged |
| Millennium Management LLC | 56,485 | $368.3K | 0.00% | +22,055+64.1% | Added |
| Wealth Enhancement Advisory Services, LLC | 58,892 | $394.0K | 0.00% | +58,892 | New |
| Rhumbline Advisers | 68,086 | $443.9K | 0.00% | +431+0.6% | Added |
| Alliancebernstein L.P. | 69,110 | $450.6K | 0.00% | +4,000+6.1% | Added |
| Susquehanna International Group, LLP | 70,651 | $460.6K | 0.00% | +8,699+14.0% | Added |
| Franklin Resources Inc | 73,761 | $480.9K | 0.00% | +85+0.1% | Added |
| KLP Kapitalforvaltning AS | 81,200 | $529.4K | 0.00% | 00.0% | Unchanged |
| Swiss National Bank | 83,900 | $547.0K | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 95,086 | $620.0K | 0.00% | +29,175+44.3% | Added |
| Jane Street Group, LLC | 98,233 | $640.5K | 0.00% | −15,914−13.9% | Reduced |
| SummerHaven Investment Management, LLC | 98,525 | $642.4K | 0.42% | +2,317+2.4% | Added |
| Nuveen, LLC | 100,098 | $652.6K | 0.00% | −48,623−32.7% | Reduced |
| Invesco Ltd. | 109,628 | $714.8K | 0.00% | −11,146−9.2% | Reduced |
| Bridgeway Capital Management, LLC | 111,568 | $727.4K | 0.02% | +111,568 | New |
| Two Sigma Investments, LP | 113,735 | $741.6K | 0.00% | +85,993+310.0% | Added |
| Martingale Asset Management L P | 119,747 | $780.8K | 0.02% | +33,590+39.0% | Added |
| Harbor Capital Advisors, Inc. | 136,457 | $890.0K | 0.04% | −85,555−38.5% | Reduced |
| First Trust Advisors LP | 150,913 | $984.0K | 0.00% | +7,828+5.5% | Added |
| Los Angeles Capital Management LLC | 160,853 | $1.05M | 0.00% | −124,744−43.7% | Reduced |
| UBS Asset Management Americas Inc | 195,475 | $1.27M | 0.00% | +16,630+9.3% | Added |
| Campbell & CO Investment Adviser LLC | 198,413 | $1.29M | 0.08% | +159,779+413.6% | Added |
| Wellington Management Group LLP | 206,329 | $1.35M | 0.00% | +24,001+13.2% | Added |
| Royal Bank of Canada | 213,838 | $1.39M | 0.00% | +213,744+227,387.2% | Added |
| State of Wisconsin Investment Board | 253,502 | $1.65M | 0.00% | −1,200−0.5% | Reduced |
| Ameriprise Financial Inc | 266,905 | $1.74M | 0.00% | +68,876+34.8% | Added |
| Segall Bryant & Hamill, LLC | 282,345 | $1.84M | 0.03% | −30,355−9.7% | Reduced |
| Bank of New York Mellon Corp | 291,475 | $1.90M | 0.00% | +1,042+0.4% | Added |
| Macquarie Group Ltd | 297,771 | $1.94M | 0.00% | −23,402−7.3% | Reduced |
| Victory Capital Management Inc | 309,956 | $2.02M | 0.00% | +29,915+10.7% | Added |
| Charles Schwab Investment Management Inc | 335,595 | $2.19M | 0.00% | −25,189−7.0% | Reduced |
| CSM Advisors, LLC | 358,257 | $2.33M | 0.07% | +358,257 | New |
| Federated Hermes, Inc. | 362,961 | $2.37M | 0.00% | +1,991+0.6% | Added |
| LSV Asset Management | 380,988 | $2.48M | 0.01% | 00.0% | Unchanged |
| Denali Advisors LLC | 391,103 | $2.55M | 0.27% | +573+0.1% | Added |
| Northern Trust Corp | 403,373 | $2.63M | 0.00% | −66,221−14.1% | Reduced |
| Bank of America Corp | 405,730 | $2.65M | 0.00% | +238,869+143.2% | Added |
| D. E. Shaw & Co., Inc. | 433,022 | $2.82M | 0.00% | −114,833−21.0% | Reduced |
| Jacobs Levy Equity Management, Inc | 438,854 | $2.86M | 0.01% | +438,854 | New |
| Uniplan Investment Counsel, Inc. | 461,551 | $3.01M | 0.30% | −43,010−8.5% | Reduced |
| Goldman Sachs Group Inc | 521,607 | $3.40M | 0.00% | +238,411+84.2% | Added |
| Morgan Stanley | 521,868 | $3.40M | 0.00% | +229,009+78.2% | Added |
| Legato Capital Management LLC | 536,511 | $3.50M | 0.42% | +4,070+0.8% | Added |
| General American Investors Co Inc | 539,738 | $3.52M | 0.24% | 00.0% | Unchanged |
| Arrowstreet Capital, Limited Partnership | 578,781 | $3.77M | 0.00% | −14,492−2.4% | Reduced |
| New York State Common Retirement Fund | 593,050 | $3.87M | 0.01% | +3,430+0.6% | Added |
| Renaissance Technologies LLC | 598,912 | $3.90M | 0.01% | −28,624−4.6% | Reduced |
| Royce & Associates LP | 642,582 | $4.19M | 0.04% | −116,094−15.3% | Reduced |
| First Wilshire Securities Management Inc | 697,209 | $4.55M | 1.24% | −889,640−56.1% | Reduced |
| Jupiter Asset Management Ltd | 990,648 | $6.46M | 0.05% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 997,948 | $6.51M | 0.00% | −50,877−4.9% | Reduced |
| State Street Corp | 1,110,017 | $7.24M | 0.00% | +2,590+0.2% | Added |
| Citadel Advisors LLC | 1,394,495 | $9.09M | 0.01% | +233,682+20.1% | Added |
| American Century Companies Inc | 1,405,174 | $9.16M | 0.00% | +34,514+2.5% | Added |
| Hotchkis & Wiley Capital Management LLC | 2,067,760 | $13.5M | 0.04% | −1,090,560−34.5% | Reduced |
| Dimensional Fund Advisors LP | 2,407,479 | $15.7M | 0.00% | +54,596+2.3% | Added |
| AltraVue Capital, LLC | 2,501,144 | $16.3M | 1.43% | +104,190+4.3% | Added |
| Vanguard Group Inc | 2,513,906 | $16.4M | 0.00% | +20,481+0.8% | Added |
| BlackRock, Inc. | 3,627,964 | $23.7M | 0.00% | −168,212−4.4% | Reduced |
| Ashton Thomas Private Wealth, LLC | 0 | $0 | 0.00% | −58,737−100.0% | Sold out |
| Allianz Asset Management GmbH | 0 | $0 | 0.00% | −45,200−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −40,576−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −30,938−100.0% | Sold out |
| Corebridge Financial, Inc. | 0 | $0 | 0.00% | −22,689−100.0% | Sold out |
| Cerity Partners LLC | 0 | $0 | 0.00% | −21,797−100.0% | Sold out |
| Sherbrooke Park Advisers LLC | 0 | $0 | 0.00% | −20,293−100.0% | Sold out |
| Lazard Asset Management LLC | 0 | $0 | 0.00% | −16,182−100.0% | Sold out |
| Virginia Retirement Systems Et Al | 0 | $0 | 0.00% | −13,341−100.0% | Sold out |
| Atom Investors LP | 0 | $0 | 0.00% | −13,012−100.0% | Sold out |
| Teza Capital Management LLC | 0 | $0 | 0.00% | −11,141−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −11,030−100.0% | Sold out |
| Corton Capital Inc. | 0 | $0 | 0.00% | −10,594−100.0% | Sold out |
| CIBC World Markets Corp | 0 | $0 | 0.00% | −10,277−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −4,196−100.0% | Sold out |
| Vestcor Inc | 0 | $0 | 0.00% | −932−100.0% | Sold out |
| Caitong International Asset Management Co., Ltd | 0 | $0 | 0.00% | −442−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −394−100.0% | Sold out |
| Federation des caisses Desjardins du Quebec | 0 | $0 | 0.00% | −193−100.0% | Sold out |
| Rise Advisors, LLC | 0 | $0 | 0.00% | −182−100.0% | Sold out |
| Coldstream Capital Management Inc | 0 | $0 | 0.00% | −89−100.0% | Sold out |
| Capital Advisors, Ltd. LLC | 0 | $0 | 0.00% | −22−100.0% | Sold out |