Siga TechnologiesSIGA
13F holders, Q2 2025 (June 30)177holders +10
32new positions
22sold out
6famous investors
$6.52avg. 13F price*
At the end of Q2 2025, 177 institutions reported holding Siga Technologies Inc. (SIGA) in their 13F filings, up 10 from Q1 2025. 32 opened new positions and 22 sold out. The largest holders were BlackRock, Inc. ($23.7M), Vanguard Group Inc. ($16.4M) and AltraVue Capital, LLC ($16.3M). 6 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).
- Company
- Siga Technologies Inc.
- CUSIP
- 826917106
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 32 | $8.7M |
| Exits | 22 | $1.8M |
All 13F filers, Q1 2025 → Q2 2025: 3,330,316 shares bought and 3,587,284 shares sold, net −256,968 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 177 holders
| BlackRock, Inc. | 0.00% | Reduce -4.4% | 3,627,964 | $23.7M |
| Vanguard Group Inc. | 0.00% | Add +0.8% | 2,513,906 | $16.4M |
| AltraVue Capital, LLC | 1.43% | Add +4.3% | 2,501,144 | $16.3M |
| Dimensional Fund Advisors LP | 0.00% | Add +2.3% | 2,407,479 | $15.7M |
| Hotchkis & Wiley Capital Management LLC | 0.04% | Reduce -34.5% | 2,067,760 | $13.5M |
| American Century Companies Inc. | 0.01% | Add +2.5% | 1,405,174 | $9.2M |
| Citadel Advisors | 0.01% | Add +20.1% | 1,394,495 | $9.1M |
| State Street Corp. | 0.00% | Add +0.2% | 1,110,017 | $7.2M |
| Geode Capital Management, LLC | 0.00% | Reduce -4.8% | 997,948 | $6.5M |
| Jupiter Asset Management Ltd. | 0.05% | No change | 990,648 | $6.5M |
| First Wilshire Securities Management Inc. | 1.24% | Reduce -56.1% | 697,209 | $4.5M |
| Royce & Associates LP | 0.04% | Reduce -15.3% | 642,582 | $4.2M |
| Renaissance Technologies | 0.01% | Reduce -4.6% | 598,912 | $3.9M |
| New York State Common Retirement Fund | 0.01% | Add +0.6% | 593,050 | $3.9M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Reduce -2.4% | 578,781 | $3.8M |
| General American Investors Co. Inc. | 0.24% | No change | 539,738 | $3.5M |
| Legato Capital Management LLC | 0.42% | Add +0.8% | 536,511 | $3.5M |
| Morgan Stanley | 0.00% | Add +78.2% | 521,868 | $3.4M |
| Goldman Sachs Group Inc. | 0.00% | Add +84.2% | 521,607 | $3.4M |
| Uniplan Investment Counsel, Inc. | 0.32% | Reduce -8.5% | 461,551 | $3.0M |
| Jacobs Levy Equity Management, Inc. | 0.01% | New | 438,854 | $2.9M |
| D. E. Shaw & Co. | 0.00% | Reduce -21.0% | 433,022 | $2.8M |
| Bank of America Corp. | 0.00% | Add +143.2% | 405,730 | $2.6M |
| Northern Trust Corp. | 0.00% | Reduce -14.1% | 403,373 | $2.6M |
| Denali Advisors LLC | 0.27% | Add +0.1% | 391,103 | $2.5M |
| LSV Asset Management | 0.01% | No change | 380,988 | $2.5M |
| Federated Hermes, Inc. | 0.00% | Add +0.6% | 362,961 | $2.4M |
| CSM Advisors, LLC | 0.07% | New | 358,257 | $2.3M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -7.0% | 335,595 | $2.2M |
| Victory Capital Management Inc. | 0.00% | Add +10.7% | 309,956 | $2.0M |
| Macquarie Group Ltd. | 0.00% | Reduce -7.3% | 297,771 | $1.9M |
| Bank of New York Mellon Corp | 0.00% | Add +0.4% | 291,475 | $1.9M |
| Segall Bryant & Hamill, LLC | 0.03% | Reduce -9.7% | 282,345 | $1.8M |
| Ameriprise Financial Inc. | 0.00% | Add +34.8% | 266,905 | $1.7M |
| State of Wisconsin Investment Board | 0.00% | Reduce -0.5% | 253,502 | $1.7M |
| Royal Bank of Canada | 0.00% | Add +227387.2% | 213,838 | $1.4M |
| Wellington Management Group LLP | 0.00% | Add +13.2% | 206,329 | $1.3M |
| Campbell & CO Investment Adviser LLC | 0.08% | Add +413.6% | 198,413 | $1.3M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +9.3% | 195,475 | $1.3M |
| Los Angeles Capital Management LLC | 0.00% | Reduce -43.7% | 160,853 | $1.0M |
| First Trust Advisors LP | 0.00% | Add +5.5% | 150,913 | $984K |
| Harbor Capital Advisors, Inc. | 0.04% | Reduce -38.5% | 136,457 | $890K |
| Martingale Asset Management L P | 0.02% | Add +39.0% | 119,747 | $781K |
| Two Sigma Investments, LP | 0.00% | Add +310.0% | 113,735 | $742K |
| Bridgeway Capital Management, LLC | 0.02% | New | 111,568 | $727K |
| Invesco Ltd. | 0.00% | Reduce -9.2% | 109,628 | $715K |
| Nuveen, LLC | 0.00% | Reduce -32.7% | 100,098 | $653K |
| SummerHaven Investment Management, LLC | 0.42% | Add +2.4% | 98,525 | $642K |
| Jane Street Group, LLC | 0.00% | Reduce -13.9% | 98,233 | $640K |
| Barclays PLC | 0.00% | Add +44.3% | 95,086 | $620K |
| Swiss National Bank | 0.00% | No change | 83,900 | $547K |
| KLP Kapitalforvaltning As | 0.00% | No change | 81,200 | $529K |
| Franklin Resources Inc. | 0.00% | Add +0.1% | 73,761 | $481K |
| Susquehanna International Group, LLP | 0.00% | Add +14.0% | 70,651 | $461K |
| Alliancebernstein L.P. | 0.00% | Add +6.1% | 69,110 | $451K |
| Rhumbline Advisers | 0.00% | Add +0.6% | 68,086 | $444K |
| Wealth Enhancement Advisory Services, LLC | 0.00% | New | 58,892 | $394K |
| Millennium Management | 0.00% | Add +64.1% | 56,485 | $368K |
| James Investment Research, Inc. | 0.04% | No change | 53,546 | $349K |
| Legal & General Group Plc | 0.00% | Reduce -10.7% | 53,094 | $346K |
| Aviva PLC | 0.00% | Reduce -51.7% | 51,144 | $333K |
| DAVENPORT & Co LLC | 0.00% | Add +150.0% | 50,000 | $326K |
| Walleye Capital LLC | 0.00% | New | 49,080 | $320K |
| Cim Investment Management Inc. | 0.06% | Add +100.7% | 50,635 | $317K |
| HRT Financial LP | 0.00% | Add +83.0% | 47,044 | $306K |
| Significant Wealth Partners LLC | 0.14% | Add +27.6% | 43,721 | $285K |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -1.3% | 42,765 | $279K |
| State of Wyoming | 0.03% | Reduce -53.8% | 40,302 | $263K |
| California State Teachers Retirement System | 0.00% | No change | 40,272 | $263K |
| Exchange Traded Concepts, LLC | 0.00% | Reduce -12.1% | 39,223 | $256K |
| Penn Mutual Asset Management | 0.55% | Reduce -34.3% | 38,280 | $250K |
| Tudor Investment Corporation | 0.00% | New | 36,576 | $238K |
| Man Group plc | 0.00% | Add +0.7% | 36,199 | $236K |
| UBS Group AG | 0.00% | Reduce -24.2% | 34,761 | $227K |
| Creative Planning | 0.00% | Reduce -8.3% | 34,546 | $225K |
| Principal Financial Group Inc. | 0.00% | Add +33.8% | 32,276 | $210K |
| Two Sigma Advisers, LP | 0.00% | New | 32,100 | $209K |
| State of Tennessee, Department of Treasury | 0.00% | Reduce -39.5% | 30,708 | $200K |
| Sei Investments Co. | 0.00% | Reduce -20.6% | 30,420 | $198K |
| Deutsche Bank AG | 0.00% | Reduce -18.4% | 29,910 | $195K |
| DGS Capital Management, LLC | 0.04% | Reduce -10.3% | 29,776 | $194K |
| HSBC Holdings PLC | 0.00% | New | 28,461 | $190K |
| Brevan Howard Capital Management LP | 0.00% | New | 28,936 | $189K |
| Kapitalo Investimentos Ltda | 0.04% | New | 28,089 | $183K |
| October Effect Ltd | 0.22% | — | 27,666 | $180K |
| Linden Thomas Advisory Services, LLC | 0.02% | Add +5.3% | 27,633 | $180K |
| MetLife Investment Management, LLC | 0.00% | Add +0.3% | 27,524 | $179K |
| Cresset Asset Management, LLC | 0.00% | Reduce -4.2% | 27,331 | $178K |
| Oxford Asset Management LLP | 0.06% | New | 27,112 | $177K |
| Washington Growth Strategies LLC | 0.13% | — | 26,216 | $171K |
| STRS Ohio | 0.00% | Reduce -15.9% | 25,400 | $166K |
| JPMorgan Chase & Co. | 0.00% | Reduce -19.0% | 24,988 | $163K |
| Intech Investment Management LLC | 0.00% | Reduce -24.5% | 22,956 | $150K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -18.5% | 22,480 | $147K |
| Wells Fargo & Company | 0.00% | Reduce -7.2% | 22,380 | $146K |
| Vanguard Personalized Indexing Management, LLC | 0.00% | Add +44.6% | 21,432 | $140K |
| CIBC Private Wealth Group LLC | 0.00% | Reduce -18.0% | 21,316 | $139K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | No change | 21,057 | $137K |
| Cambria Investment Management, L.P. | 0.01% | Add +12.0% | 20,933 | $136K |
| Metis Global Partners, LLC | 0.00% | No change | 20,164 | $131K |
"% of holder's portfolio" is SIGA's weight in each manager's 13F, not the share of Siga Technologies Inc. the manager owns.