Siga TechnologiesSIGA
13F holders, Q3 2025 (September 30)197holders +20
37new positions
17sold out
6famous investors
$9.15avg. 13F price*
At the end of Q3 2025, 197 institutions reported holding Siga Technologies Inc. (SIGA) in their 13F filings, up 20 from Q2 2025. 37 opened new positions and 17 sold out. The largest holders were BlackRock, Inc. ($32.3M), Vanguard Group Inc. ($24.3M) and Dimensional Fund Advisors LP ($22.3M). 6 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio), David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Siga Technologies Inc.
- CUSIP
- 826917106
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 37 | $10.4M |
| Exits | 17 | $6.2M |
All 13F filers, Q2 2025 → Q3 2025: 3,887,796 shares bought and 4,349,383 shares sold, net −461,587 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 197 holders
| BlackRock, Inc. | 0.00% | Reduce -2.8% | 3,526,009 | $32.3M |
| Vanguard Group Inc. | 0.00% | Add +5.7% | 2,655,942 | $24.3M |
| Dimensional Fund Advisors LP | 0.00% | Add +1.0% | 2,432,380 | $22.3M |
| AltraVue Capital, LLC | 1.83% | Reduce -3.3% | 2,417,514 | $22.1M |
| American Century Companies Inc. | 0.01% | Reduce -12.3% | 1,232,732 | $11.3M |
| Citadel Advisors | 0.01% | Reduce -19.3% | 1,125,163 | $10.3M |
| State Street Corp. | 0.00% | Reduce -6.9% | 1,033,854 | $9.5M |
| Geode Capital Management, LLC | 0.00% | Add +0.0% | 998,222 | $9.1M |
| Jupiter Asset Management Ltd. | 0.08% | No change | 990,648 | $9.1M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Add +44.2% | 834,683 | $7.6M |
| Hotchkis & Wiley Capital Management LLC | 0.02% | Reduce -60.0% | 827,587 | $7.6M |
| First Wilshire Securities Management Inc. | 1.67% | Reduce -1.3% | 687,897 | $6.3M |
| Royce & Associates LP | 0.06% | Add +5.9% | 680,222 | $6.2M |
| Morgan Stanley | 0.00% | Add +25.9% | 656,962 | $6.0M |
| CSM Advisors, LLC | 0.15% | Add +66.5% | 596,512 | $5.5M |
| New York State Common Retirement Fund | 0.01% | Reduce -3.8% | 570,561 | $5.2M |
| Goldman Sachs Group Inc. | 0.00% | Add +2.0% | 532,140 | $4.9M |
| Bank of America Corp. | 0.00% | Add +27.9% | 518,771 | $4.7M |
| Legato Capital Management LLC | 0.51% | Reduce -4.6% | 512,039 | $4.7M |
| D. E. Shaw & Co. | 0.00% | Add +15.4% | 499,753 | $4.6M |
| Jacobs Levy Equity Management, Inc. | 0.02% | Add +5.7% | 463,705 | $4.2M |
| LSV Asset Management | 0.01% | Add +9.8% | 418,330 | $3.8M |
| Uniplan Investment Counsel, Inc. | 0.37% | Reduce -14.1% | 396,519 | $3.6M |
| Northern Trust Corp. | 0.00% | Reduce -2.6% | 392,880 | $3.6M |
| Denali Advisors LLC | 0.37% | Reduce -7.9% | 360,300 | $3.3M |
| Victory Capital Management Inc. | 0.00% | Add +15.5% | 357,886 | $3.3M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +4.1% | 349,376 | $3.2M |
| Federated Hermes, Inc. | 0.01% | Reduce -3.8% | 349,184 | $3.2M |
| AQR Capital Management | 0.00% | Add +1698.3% | 348,081 | $3.2M |
| Renaissance Technologies | 0.00% | Reduce -48.5% | 308,500 | $2.8M |
| Janus Henderson Group PLC | 0.00% | Add +1376.5% | 289,086 | $2.6M |
| Macquarie Group Ltd. | 0.00% | Reduce -4.5% | 284,219 | $2.6M |
| Segall Bryant & Hamill, LLC | 0.03% | Reduce -0.6% | 280,647 | $2.6M |
| Bank of New York Mellon Corp | 0.00% | Reduce -7.3% | 270,330 | $2.5M |
| Millennium Management | 0.00% | Add +353.8% | 256,337 | $2.3M |
| Bridgeway Capital Management, LLC | 0.04% | Add +95.3% | 217,868 | $2.0M |
| State of Wisconsin Investment Board | 0.00% | Reduce -15.1% | 215,302 | $2.0M |
| JPMorgan Chase & Co. | 0.00% | Add +744.6% | 211,055 | $1.9M |
| Brandywine Global Investment Management, LLC | 0.01% | New | 181,630 | $1.7M |
| UBS Group AG | 0.00% | Add +397.7% | 173,012 | $1.6M |
| Ameriprise Financial Inc. | 0.00% | Reduce -35.4% | 172,490 | $1.6M |
| First Trust Advisors LP | 0.00% | Add +0.5% | 151,645 | $1.4M |
| Wellington Management Group LLP | 0.00% | Reduce -30.6% | 143,106 | $1.3M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -34.6% | 127,829 | $1.2M |
| Cubist Systematic Strategies, LLC | 0.02% | New | 126,915 | $1.2M |
| SummerHaven Investment Management, LLC | 0.65% | Add +24.6% | 122,709 | $1.1M |
| State Board of Administration of Florida Retirement System | 0.00% | Add +780.7% | 117,662 | $1.1M |
| Jane Street Group, LLC | 0.00% | Add +10.5% | 108,546 | $993K |
| Martingale Asset Management L P | 0.02% | Reduce -11.8% | 105,660 | $967K |
| WINTON GROUP Ltd | 0.04% | New | 105,583 | $966K |
| Invesco Ltd. | 0.00% | Reduce -4.0% | 105,275 | $963K |
| Nuveen, LLC | 0.00% | No change | 100,098 | $916K |
| Walleye Capital LLC | 0.01% | Add +85.2% | 90,906 | $832K |
| KLP Kapitalforvaltning As | 0.00% | Add +7.9% | 87,600 | $802K |
| Acadian Asset Management LLC | 0.00% | New | 85,481 | $778K |
| Swiss National Bank | 0.00% | No change | 83,900 | $768K |
| Campbell & CO Investment Adviser LLC | 0.06% | Reduce -58.0% | 83,413 | $763K |
| Prudential Financial Inc. | 0.00% | New | 83,387 | $763K |
| Franklin Resources Inc. | 0.00% | Add +8.8% | 80,239 | $734K |
| Royal Bank of Canada | 0.00% | Reduce -62.8% | 79,550 | $728K |
| Jump Financial, LLC | 0.01% | New | 74,170 | $679K |
| Barclays PLC | 0.00% | Reduce -23.6% | 72,618 | $664K |
| STRS Ohio | 0.00% | Add +161.4% | 66,400 | $608K |
| Rhumbline Advisers | 0.00% | Reduce -5.5% | 64,337 | $589K |
| Alliancebernstein L.P. | 0.00% | Reduce -7.8% | 63,710 | $583K |
| State of Wyoming | 0.06% | Add +45.2% | 58,520 | $535K |
| Creative Planning | 0.00% | Add +64.9% | 56,959 | $521K |
| Wealth Enhancement Advisory Services, LLC | 0.00% | Add +2.6% | 60,420 | $510K |
| Aviva PLC | 0.00% | Add +8.8% | 55,623 | $509K |
| James Investment Research, Inc. | 0.05% | No change | 53,546 | $490K |
| Legal & General Group Plc | 0.00% | No change | 53,094 | $486K |
| Alps Advisors Inc. | 0.00% | New | 51,120 | $468K |
| Man Group plc | 0.00% | Add +30.4% | 47,191 | $432K |
| Qube Research & Technologies Ltd | 0.00% | New | 46,189 | $423K |
| Los Angeles Capital Management LLC | 0.00% | Reduce -71.8% | 45,447 | $416K |
| Trexquant Investment LP | 0.00% | New | 45,318 | $415K |
| O'shaughnessy Asset Management, LLC | 0.00% | New | 44,797 | $410K |
| Significant Wealth Partners LLC | 0.20% | Add +1.7% | 44,452 | $407K |
| Principal Financial Group Inc. | 0.00% | Add +36.3% | 43,993 | $403K |
| T. Rowe Price Associates Inc. | 0.00% | No change | 42,765 | $392K |
| Cresset Asset Management, LLC | 0.00% | Add +48.9% | 40,690 | $372K |
| California State Teachers Retirement System | 0.00% | Add +0.0% | 40,274 | $369K |
| Penn Mutual Asset Management | 0.86% | No change | 38,280 | $350K |
| DGS Capital Management, LLC | 0.06% | Add +11.7% | 33,268 | $304K |
| ExodusPoint Capital Management, LP | 0.00% | New | 32,904 | $301K |
| Exchange Traded Concepts, LLC | 0.00% | Reduce -19.9% | 31,433 | $288K |
| HSBC Holdings PLC | 0.00% | Add +10.3% | 31,400 | $287K |
| Wells Fargo & Company | 0.00% | Add +37.5% | 30,778 | $282K |
| Sei Investments Co. | 0.00% | Add +0.0% | 30,422 | $278K |
| Deutsche Bank AG | 0.00% | No change | 29,910 | $274K |
| Susquehanna International Group, LLP | 0.00% | Reduce -58.7% | 29,201 | $267K |
| Linden Thomas Advisory Services, LLC | 0.03% | Add +3.3% | 28,547 | $261K |
| Russell Investments Group, Ltd. | 0.00% | Add +77.2% | 27,706 | $254K |
| Petrus Trust Company, LTA | 0.03% | New | 26,414 | $242K |
| Washington Growth Strategies LLC | 0.17% | No change | 26,216 | $240K |
| Centiva Capital, LP | 0.02% | Add +33.4% | 25,828 | $236K |
| October Effect Ltd | 0.26% | Reduce -7.2% | 25,666 | $235K |
| Cim Investment Management Inc. | 0.06% | Reduce -51.9% | 24,379 | $223K |
| State of Tennessee, Department of Treasury | 0.00% | Reduce -24.3% | 23,244 | $213K |
| Envestnet Asset Management Inc. | 0.00% | New | 22,179 | $203K |
"% of holder's portfolio" is SIGA's weight in each manager's 13F, not the share of Siga Technologies Inc. the manager owns.