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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 3,627,964 | $23.7M | 0.00% | −168,212−4.4% | Reduced |
| Vanguard Group Inc | 2,513,906 | $16.4M | 0.00% | +20,481+0.8% | Added |
| AltraVue Capital, LLC | 2,501,144 | $16.3M | 1.43% | +104,190+4.3% | Added |
| Dimensional Fund Advisors LP | 2,407,479 | $15.7M | 0.00% | +54,596+2.3% | Added |
| Hotchkis & Wiley Capital Management LLC | 2,067,760 | $13.5M | 0.04% | −1,090,560−34.5% | Reduced |
| American Century Companies Inc | 1,405,174 | $9.16M | 0.00% | +34,514+2.5% | Added |
| Citadel Advisors LLC | 1,394,495 | $9.09M | 0.01% | +233,682+20.1% | Added |
| State Street Corp | 1,110,017 | $7.24M | 0.00% | +2,590+0.2% | Added |
| Geode Capital Management, LLC | 997,948 | $6.51M | 0.00% | −50,877−4.9% | Reduced |
| Jupiter Asset Management Ltd | 990,648 | $6.46M | 0.05% | 00.0% | Unchanged |
| First Wilshire Securities Management Inc | 697,209 | $4.55M | 1.24% | −889,640−56.1% | Reduced |
| Royce & Associates LP | 642,582 | $4.19M | 0.04% | −116,094−15.3% | Reduced |
| Renaissance Technologies LLC | 598,912 | $3.90M | 0.01% | −28,624−4.6% | Reduced |
| New York State Common Retirement Fund | 593,050 | $3.87M | 0.01% | +3,430+0.6% | Added |
| Arrowstreet Capital, Limited Partnership | 578,781 | $3.77M | 0.00% | −14,492−2.4% | Reduced |
| General American Investors Co Inc | 539,738 | $3.52M | 0.24% | 00.0% | Unchanged |
| Legato Capital Management LLC | 536,511 | $3.50M | 0.42% | +4,070+0.8% | Added |
| Morgan Stanley | 521,868 | $3.40M | 0.00% | +229,009+78.2% | Added |
| Goldman Sachs Group Inc | 521,607 | $3.40M | 0.00% | +238,411+84.2% | Added |
| Uniplan Investment Counsel, Inc. | 461,551 | $3.01M | 0.30% | −43,010−8.5% | Reduced |
| Jacobs Levy Equity Management, Inc | 438,854 | $2.86M | 0.01% | +438,854 | New |
| D. E. Shaw & Co., Inc. | 433,022 | $2.82M | 0.00% | −114,833−21.0% | Reduced |
| Bank of America Corp | 405,730 | $2.65M | 0.00% | +238,869+143.2% | Added |
| Northern Trust Corp | 403,373 | $2.63M | 0.00% | −66,221−14.1% | Reduced |
| Denali Advisors LLC | 391,103 | $2.55M | 0.27% | +573+0.1% | Added |
| LSV Asset Management | 380,988 | $2.48M | 0.01% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 362,961 | $2.37M | 0.00% | +1,991+0.6% | Added |
| CSM Advisors, LLC | 358,257 | $2.33M | 0.07% | +358,257 | New |
| Charles Schwab Investment Management Inc | 335,595 | $2.19M | 0.00% | −25,189−7.0% | Reduced |
| Victory Capital Management Inc | 309,956 | $2.02M | 0.00% | +29,915+10.7% | Added |
| Macquarie Group Ltd | 297,771 | $1.94M | 0.00% | −23,402−7.3% | Reduced |
| Bank of New York Mellon Corp | 291,475 | $1.90M | 0.00% | +1,042+0.4% | Added |
| Segall Bryant & Hamill, LLC | 282,345 | $1.84M | 0.03% | −30,355−9.7% | Reduced |
| Ameriprise Financial Inc | 266,905 | $1.74M | 0.00% | +68,876+34.8% | Added |
| State of Wisconsin Investment Board | 253,502 | $1.65M | 0.00% | −1,200−0.5% | Reduced |
| Royal Bank of Canada | 213,838 | $1.39M | 0.00% | +213,744+227,387.2% | Added |
| Wellington Management Group LLP | 206,329 | $1.35M | 0.00% | +24,001+13.2% | Added |
| Campbell & CO Investment Adviser LLC | 198,413 | $1.29M | 0.08% | +159,779+413.6% | Added |
| UBS Asset Management Americas Inc | 195,475 | $1.27M | 0.00% | +16,630+9.3% | Added |
| Los Angeles Capital Management LLC | 160,853 | $1.05M | 0.00% | −124,744−43.7% | Reduced |
| First Trust Advisors LP | 150,913 | $984.0K | 0.00% | +7,828+5.5% | Added |
| Harbor Capital Advisors, Inc. | 136,457 | $890.0K | 0.04% | −85,555−38.5% | Reduced |
| Martingale Asset Management L P | 119,747 | $780.8K | 0.02% | +33,590+39.0% | Added |
| Two Sigma Investments, LP | 113,735 | $741.6K | 0.00% | +85,993+310.0% | Added |
| Bridgeway Capital Management, LLC | 111,568 | $727.4K | 0.02% | +111,568 | New |
| Invesco Ltd. | 109,628 | $714.8K | 0.00% | −11,146−9.2% | Reduced |
| Nuveen, LLC | 100,098 | $652.6K | 0.00% | −48,623−32.7% | Reduced |
| SummerHaven Investment Management, LLC | 98,525 | $642.4K | 0.42% | +2,317+2.4% | Added |
| Jane Street Group, LLC | 98,233 | $640.5K | 0.00% | −15,914−13.9% | Reduced |
| Barclays PLC | 95,086 | $620.0K | 0.00% | +29,175+44.3% | Added |
| Swiss National Bank | 83,900 | $547.0K | 0.00% | 00.0% | Unchanged |
| KLP Kapitalforvaltning AS | 81,200 | $529.4K | 0.00% | 00.0% | Unchanged |
| Franklin Resources Inc | 73,761 | $480.9K | 0.00% | +85+0.1% | Added |
| Susquehanna International Group, LLP | 70,651 | $460.6K | 0.00% | +8,699+14.0% | Added |
| Alliancebernstein L.P. | 69,110 | $450.6K | 0.00% | +4,000+6.1% | Added |
| Rhumbline Advisers | 68,086 | $443.9K | 0.00% | +431+0.6% | Added |
| Wealth Enhancement Advisory Services, LLC | 58,892 | $394.0K | 0.00% | +58,892 | New |
| Millennium Management LLC | 56,485 | $368.3K | 0.00% | +22,055+64.1% | Added |
| James Investment Research Inc | 53,546 | $349.1K | 0.04% | 00.0% | Unchanged |
| Legal & General Group Plc | 53,094 | $346.2K | 0.00% | −6,376−10.7% | Reduced |
| Aviva PLC | 51,144 | $333.5K | 0.00% | −54,717−51.7% | Reduced |
| Davenport & Co LLC | 50,000 | $326.0K | 0.00% | +30,000+150.0% | Added |
| Walleye Capital LLC | 49,080 | $320.0K | 0.00% | +49,080 | New |
| Cim Investment Mangement Inc | 50,635 | $317.0K | 0.06% | +25,411+100.7% | Added |
| HRT Financial LP | 47,044 | $306.0K | 0.00% | +21,340+83.0% | Added |
| Significant Wealth Partners LLC | 43,721 | $285.1K | 0.14% | +9,452+27.6% | Added |
| Price T Rowe Associates Inc | 42,765 | $279.0K | 0.00% | −563−1.3% | Reduced |
| State of Wyoming | 40,302 | $262.8K | 0.03% | −46,901−53.8% | Reduced |
| California State Teachers Retirement System | 40,272 | $262.6K | 0.00% | 00.0% | Unchanged |
| Exchange Traded Concepts, LLC | 39,223 | $255.7K | 0.00% | −5,408−12.1% | Reduced |
| Penn Mutual Asset Management, LLC | 38,280 | $249.6K | 0.44% | −20,000−34.3% | Reduced |
| Tudor Investment Corp Et Al | 36,576 | $238.5K | 0.00% | +36,576 | New |
| Man Group plc | 36,199 | $236.0K | 0.00% | +234+0.7% | Added |
| UBS Group AG | 34,761 | $226.6K | 0.00% | −11,078−24.2% | Reduced |
| Creative Planning | 34,546 | $225.2K | 0.00% | −3,141−8.3% | Reduced |
| Principal Financial Group Inc | 32,276 | $210.4K | 0.00% | +8,160+33.8% | Added |
| Two Sigma Advisers, LP | 32,100 | $209.3K | 0.00% | +32,100 | New |
| State of Tennessee, Treasury Department | 30,708 | $200.2K | 0.00% | −20,063−39.5% | Reduced |
| SEI Investments Co | 30,420 | $198.3K | 0.00% | −7,900−20.6% | Reduced |
| Deutsche Bank AG | 29,910 | $195.0K | 0.00% | −6,755−18.4% | Reduced |
| DGS Capital Management, LLC | 29,776 | $194.1K | 0.04% | −3,425−10.3% | Reduced |
| HSBC Holdings PLC | 28,461 | $189.6K | 0.00% | +28,461 | New |
| Brevan Howard Capital Management LP | 28,936 | $188.7K | 0.00% | +28,936 | New |
| Kapitalo Investimentos Ltda | 28,089 | $183.1K | 0.04% | +28,089 | New |
| October Effect Ltd | 27,666 | $180.4K | 0.22% | +27,666 | New |
| Linden Thomas Advisory Services, LLC | 27,633 | $180.2K | 0.02% | +1,403+5.3% | Added |
| MetLife Investment Management | 27,524 | $179.5K | 0.00% | +80+0.3% | Added |
| Cresset Asset Management, LLC | 27,331 | $178.2K | 0.00% | −1,199−4.2% | Reduced |
| Oxford Asset Management LLP | 27,112 | $176.8K | 0.06% | +27,112 | New |
| Washington Growth Strategies LLC | 26,216 | $171.0K | 0.13% | +26,216 | New |
| STRS Ohio | 25,400 | $165.6K | 0.00% | −4,800−15.9% | Reduced |
| JPMorgan Chase & Co | 24,988 | $162.9K | 0.00% | −5,860−19.0% | Reduced |
| Intech Investment Management LLC | 22,956 | $149.7K | 0.00% | −7,441−24.5% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 22,480 | $146.6K | 0.00% | −5,113−18.5% | Reduced |
| Wells Fargo & Company | 22,380 | $145.9K | 0.00% | −1,745−7.2% | Reduced |
| JustInvest LLC | 21,432 | $139.7K | 0.00% | +6,616+44.7% | Added |
| CIBC Private Wealth Group, LLC | 21,316 | $139.0K | 0.00% | −4,684−18.0% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 21,057 | $137.3K | 0.00% | 00.0% | Unchanged |
| Cambria Investment Management, L.P. | 20,933 | $136.5K | 0.01% | +2,242+12.0% | Added |
| Metis Global Partners, LLC | 20,164 | $131.5K | 0.00% | 00.0% | Unchanged |