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 2026
Institutional positions in Siga Technologies Inc as of Jun 30, 2026. 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
- 160
- −19 vs. Q1 2026
- Shares held
- 34.8M
- +701.6K (+2.1%) vs. Q1 2026
- Total value
- $126.9M
- −$55.7M (−30.5%) vs. Q1 2026
- New holders
- 16
- 80 more added
- Sold out
- 35
- 46 more reduced
4 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 | $219.4M |
| Q3 2025 | 197 | $312.9M |
| Q2 2025 | 178 | $226.2M |
| Q1 2025 | 167 | $192.5M |
| Q4 2024 | 170 | $208.0M |
| Q3 2024 | 169 | $241.2M |
| Q2 2024 | 151 | $256.8M |
| Q1 2024 | 144 | $298.4M |
| Q4 2023 | 131 | $193.4M |
| Q3 2023 | 129 | $180.8M |
| Q2 2023 | 131 | $168.1M |
| Q1 2023 | 142 | $183.1M |
| Q4 2022 | 160 | $227.9M |
| Q3 2022 | 155 | $299.3M |
| Q2 2022 | 142 | $302.3M |
| Q1 2022 | 110 | $151.1M |
| Q4 2021 | 116 | $167.2M |
| Q3 2021 | 104 | $159.6M |
| Q2 2021 | 102 | $128.2M |
| Q1 2021 | 105 | $139.8M |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Siga Technologies Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 4,186,282 | $15.2M | 0.00% | +692,089+19.8% | Added |
| Dimensional Fund Advisors LP | 2,719,568 | $9.90M | 0.00% | +16,844+0.6% | Added |
| AltraVue Capital, LLC | 2,327,144 | $8.47M | 0.61% | −104,880−4.3% | Reduced |
| Vanguard Capital Management LLC | 1,712,701 | $6.23M | 0.00% | −1,679−0.1% | Reduced |
| American Century Companies Inc | 1,506,065 | $5.48M | 0.00% | +188,281+14.3% | Added |
| Arrowstreet Capital, Limited Partnership | 1,474,817 | $5.37M | 0.00% | −51,143−3.4% | Reduced |
| Geode Capital Management, LLC | 1,417,092 | $5.16M | 0.00% | +101,547+7.7% | Added |
| First Wilshire Securities Management Inc | 1,339,883 | $4.88M | 1.00% | +449,385+50.5% | Added |
| AQR Capital Management LLC | 1,245,992 | $4.54M | 0.00% | +26,315+2.2% | Added |
| State Street Corp | 1,133,989 | $4.13M | 0.00% | +122,051+12.1% | Added |
| Hotchkis & Wiley Capital Management LLC | 914,047 | $3.33M | 0.01% | +87,000+10.5% | Added |
| Qube Research & Technologies Ltd | 740,910 | $2.70M | 0.00% | +325,806+78.5% | Added |
| New York State Common Retirement Fund | 590,761 | $2.15M | 0.00% | 00.0% | Unchanged |
| Millennium Management LLC | 579,599 | $2.11M | 0.00% | +113,275+24.3% | Added |
| Jacobs Levy Equity Management, Inc | 566,863 | $2.06M | 0.01% | +275,017+94.2% | Added |
| Uniplan Investment Counsel, Inc. | 560,353 | $2.04M | 0.19% | +188,940+50.9% | Added |
| Citadel Advisors LLC | 551,246 | $2.01M | 0.00% | −153,891−21.8% | Reduced |
| Royce & Associates LP | 551,010 | $2.01M | 0.02% | −116,636−17.5% | Reduced |
| Vanguard Portfolio Management LLC | 549,697 | $2.00M | 0.00% | −37,277−6.4% | Reduced |
| Legato Capital Management LLC | 512,039 | $1.86M | 0.15% | 00.0% | Unchanged |
| LSV Asset Management | 461,307 | $1.68M | 0.00% | −77,323−14.4% | Reduced |
| Bank of America Corp | 427,275 | $1.56M | 0.00% | −57,397−11.8% | Reduced |
| Renaissance Technologies LLC | 425,800 | $1.55M | 0.00% | −49,213−10.4% | Reduced |
| Morgan Stanley | 421,009 | $1.53M | 0.00% | +157,674+59.9% | Added |
| Denali Advisors LLC | 414,436 | $1.51M | 0.15% | −22,451−5.1% | Reduced |
| Goldman Sachs Group Inc | 393,007 | $1.43M | 0.00% | −231,896−37.1% | Reduced |
| Two Sigma Investments, LP | 357,715 | $1.30M | 0.00% | −75,946−17.5% | Reduced |
| Charles Schwab Investment Management Inc | 349,820 | $1.27M | 0.00% | +9,499+2.8% | Added |
| Northern Trust Corp | 333,833 | $1.22M | 0.00% | −6,342−1.9% | Reduced |
| Vanguard Fiduciary Trust Co | 277,358 | $1.01M | 0.00% | +2,180+0.8% | Added |
| Creative Planning | 275,528 | $1.00M | 0.00% | +106,973+63.5% | Added |
| Segall Bryant & Hamill, LLC | 273,522 | $995.6K | 0.01% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 265,684 | $967.1K | 0.00% | +8,881+3.5% | Added |
| D. E. Shaw & Co., Inc. | 264,900 | $964.2K | 0.00% | −191,485−42.0% | Reduced |
| Victory Capital Management Inc | 260,062 | $946.6K | 0.00% | −116,509−30.9% | Reduced |
| Ameriprise Financial Inc | 193,368 | $703.9K | 0.00% | +9,831+5.4% | Added |
| UBS Group AG | 181,998 | $662.5K | 0.00% | +77,936+74.9% | Added |
| State of Wisconsin Investment Board | 164,400 | $598.4K | 0.00% | −13,400−7.5% | Reduced |
| First Trust Advisors LP | 159,509 | $580.6K | 0.00% | −846−0.5% | Reduced |
| Man Group plc | 157,348 | $572.7K | 0.00% | +62,835+66.5% | Added |
| Los Angeles Capital Management LLC | 145,060 | $528.0K | 0.00% | +75,978+110.0% | Added |
| STRS Ohio | 134,200 | $488.5K | 0.00% | +24,300+22.1% | Added |
| Campbell & CO Investment Adviser LLC | 121,177 | $441.1K | 0.02% | +29,052+31.5% | Added |
| Invesco Ltd. | 113,091 | $411.7K | 0.00% | +1,573+1.4% | Added |
| Alliancebernstein L.P. | 71,510 | $382.6K | 0.00% | +7,800+12.2% | Added |
| Prudential Financial Inc | 104,190 | $379.3K | 0.00% | +3,600+3.6% | Added |
| SummerHaven Investment Management, LLC | 101,025 | $367.7K | 0.20% | 00.0% | Unchanged |
| Nuveen, LLC | 100,899 | $367.3K | 0.00% | 00.0% | Unchanged |
| Martingale Asset Management L P | 92,341 | $336.1K | 0.01% | +81+0.1% | Added |
| KLP Kapitalforvaltning AS | 87,200 | $317.4K | 0.00% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 83,763 | $305.0K | 0.00% | +20,426+32.2% | Added |
| Vanguard Global Advisers, LLC | 83,009 | $302.2K | 0.00% | −7,769−8.6% | Reduced |
| Winton Group Ltd | 75,647 | $275.4K | 0.01% | −48,744−39.2% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 74,155 | $266.2K | 0.00% | +7,487+11.2% | Added |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 70,772 | $257.6K | 0.00% | +17,078+31.8% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 69,708 | $253.7K | 0.00% | +33,644+93.3% | Added |
| Canada Pension Plan Investment Board | 69,400 | $252.6K | 0.00% | 00.0% | Unchanged |
| Inspire Advisors, LLC | 68,789 | $250.4K | 0.02% | +27,966+68.5% | Added |
| Schonfeld Strategic Advisors LLC | 67,581 | $246.0K | 0.00% | +41,937+163.5% | Added |
| Cambria Investment Management, L.P. | 65,033 | $236.7K | 0.01% | +22,950+54.5% | Added |
| Exchange Traded Concepts, LLC | 63,144 | $229.8K | 0.00% | +16,266+34.7% | Added |
| XTX Topco Ltd | 62,668 | $228.1K | 0.00% | +62,668 | New |
| Jefferies Financial Group Inc. | 62,667 | $228.1K | 0.00% | 00.0% | Unchanged |
| EntryPoint Capital, LLC | 60,349 | $219.7K | 0.05% | +22,149+58.0% | Added |
| FMR LLC | 58,858 | $214.2K | 0.00% | +35,456+151.5% | Added |
| Point72 Asset Management, L.P. | 58,212 | $211.9K | 0.00% | +20,484+54.3% | Added |
| Atom Investors LP | 57,464 | $209.2K | 0.02% | +57,464 | New |
| Susquehanna International Group, LLP | 53,314 | $194.1K | 0.00% | +28,547+115.3% | Added |
| Squarepoint Ops LLC | 51,040 | $185.8K | 0.00% | −7,531−12.9% | Reduced |
| Rhumbline Advisers | 50,413 | $183.5K | 0.00% | −729−1.4% | Reduced |
| Strategic Blueprint, LLC | 50,065 | $182.2K | 0.01% | +65+0.1% | Added |
| Davenport & Co LLC | 50,000 | $182.0K | 0.00% | 00.0% | Unchanged |
| Abel Hall, LLC | 45,563 | $165.8K | 0.03% | +45,563 | New |
| Russell Investments Group, Ltd. | 44,055 | $160.4K | 0.00% | +6,390+17.0% | Added |
| Empowered Funds, LLC | 43,615 | $158.8K | 0.00% | +13,299+43.9% | Added |
| Cresset Asset Management, LLC | 40,690 | $148.1K | 0.00% | 00.0% | Unchanged |
| Viking Fund Management LLC | 40,000 | $145.6K | 0.01% | +40,000 | New |
| Public Employees Retirement System of Ohio | 38,800 | $141.2K | 0.00% | +20,900+116.8% | Added |
| Deutsche Bank AG | 37,870 | $137.8K | 0.00% | +706+1.9% | Added |
| Tudor Investment Corp Et Al | 37,237 | $135.5K | 0.00% | +37,237 | New |
| Wells Fargo & Company | 35,399 | $128.9K | 0.00% | +20,361+135.4% | Added |
| Quantinno Capital Management LP | 32,642 | $118.8K | 0.00% | +1,053+3.3% | Added |
| SEI Investments Co | 28,520 | $103.8K | 0.00% | −19,900−41.1% | Reduced |
| Citigroup Inc | 28,411 | $103.4K | 0.00% | +11,140+64.5% | Added |
| Guggenheim Capital LLC | 26,935 | $98.0K | 0.00% | +6,559+32.2% | Added |
| JPMorgan Chase & Co | 26,723 | $96.5K | 0.00% | +1,537+6.1% | Added |
| Washington Growth Strategies LLC | 26,216 | $95.4K | 0.05% | 00.0% | Unchanged |
| Ieq Capital, LLC | 26,000 | $94.6K | 0.00% | +12,466+92.1% | Added |
| Significant Wealth Partners LLC | 25,192 | $91.7K | 0.10% | +2,061+8.9% | Added |
| CIBC Bancorp USA Inc. | 23,650 | $86.1K | 0.00% | +266+1.1% | Added |
| Cerity Partners LLC | 23,036 | $83.9K | 0.00% | +12,248+113.5% | Added |
| Aquatic Capital Management LLC | 22,766 | $82.9K | 0.00% | +21,379+1,541.4% | Added |
| MetLife Investment Management | 21,880 | $79.6K | 0.00% | +10,123+86.1% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 19,464 | $70.8K | 0.00% | −62−0.3% | Reduced |
| Mercer Global Advisors Inc | 19,170 | $69.8K | 0.00% | +291+1.5% | Added |
| October Effect Ltd | 19,000 | $69.2K | 0.07% | −1,300−6.4% | Reduced |
| Mariner, LLC | 18,523 | $67.4K | 0.00% | −2,500−11.9% | Reduced |
| OneAscent Financial Services LLC | 18,198 | $66.2K | 0.00% | +8,064+79.6% | Added |
| Envestnet Asset Management Inc | 18,040 | $65.7K | 0.00% | +5,987+49.7% | Added |
| State of Alaska, Department of Revenue | 18,018 | $64.0K | 0.00% | +7,000+63.5% | Added |