Siga TechnologiesSIGA
13F holders, Q2 2026 (June 30)160holders −23
14new positions
35sold out
7famous investors
$3.64avg. 13F price*
At the end of Q2 2026, 160 institutions reported holding Siga Technologies Inc. (SIGA) in their 13F filings, down 23 from Q1 2026. 14 opened new positions and 35 sold out. The largest holders were BlackRock, Inc. ($15.2M), Dimensional Fund Advisors LP ($9.9M) and AltraVue Capital, LLC ($8.5M). 7 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Cliff Asness (0.0% of AQR Capital Management's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Siga Technologies Inc.
- CUSIP
- 826917106
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 14 | $1.1M |
| Exits | 35 | $8.5M |
All 13F filers, Q1 2026 → Q2 2026: 3,941,491 shares bought and 3,241,700 shares sold, net +699,791 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 160 holders
| BlackRock, Inc. | 0.00% | Add +19.8% | 4,186,282 | $15.2M |
| Dimensional Fund Advisors LP | 0.00% | Add +0.6% | 2,719,568 | $9.9M |
| AltraVue Capital, LLC | 0.61% | Reduce -4.3% | 2,327,144 | $8.5M |
| Vanguard Capital Management LLC | 0.00% | Reduce -0.1% | 1,712,701 | $6.2M |
| American Century Companies Inc. | 0.00% | Add +14.3% | 1,506,065 | $5.5M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Reduce -3.4% | 1,474,817 | $5.4M |
| Geode Capital Management, LLC | 0.00% | Add +7.7% | 1,417,092 | $5.2M |
| First Wilshire Securities Management Inc. | 1.00% | Add +50.5% | 1,339,883 | $4.9M |
| AQR Capital Management | 0.00% | Add +2.2% | 1,245,992 | $4.5M |
| State Street Corp. | 0.00% | Add +12.1% | 1,133,989 | $4.1M |
| Hotchkis & Wiley Capital Management LLC | 0.01% | Add +10.5% | 914,047 | $3.3M |
| Qube Research & Technologies Ltd | 0.00% | Add +78.5% | 740,910 | $2.7M |
| New York State Common Retirement Fund | 0.00% | No change | 590,761 | $2.2M |
| Millennium Management | 0.00% | Add +24.3% | 579,599 | $2.1M |
| Jacobs Levy Equity Management, Inc. | 0.01% | Add +94.2% | 566,863 | $2.1M |
| Uniplan Investment Counsel, Inc. | 0.20% | Add +50.9% | 560,353 | $2.0M |
| Citadel Advisors | 0.00% | Reduce -21.8% | 551,246 | $2.0M |
| Royce & Associates LP | 0.02% | Reduce -17.5% | 551,010 | $2.0M |
| Vanguard Portfolio Management LLC | 0.00% | Reduce -6.3% | 549,697 | $2.0M |
| Legato Capital Management LLC | 0.15% | No change | 512,039 | $1.9M |
| LSV Asset Management | 0.00% | Reduce -14.4% | 461,307 | $1.7M |
| Bank of America Corp. | 0.00% | Reduce -11.8% | 427,275 | $1.6M |
| Renaissance Technologies | 0.00% | Reduce -10.4% | 425,800 | $1.5M |
| Morgan Stanley | 0.00% | Add +59.9% | 421,009 | $1.5M |
| Denali Advisors LLC | 0.15% | Reduce -5.1% | 414,436 | $1.5M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -37.1% | 393,007 | $1.4M |
| Two Sigma Investments, LP | 0.00% | Reduce -17.5% | 357,715 | $1.3M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +2.8% | 349,820 | $1.3M |
| Northern Trust Corp. | 0.00% | Reduce -1.9% | 333,833 | $1.2M |
| Vanguard Fiduciary Trust Co. | 0.00% | Add +0.8% | 277,358 | $1.0M |
| Creative Planning | 0.00% | Add +63.5% | 275,528 | $1.0M |
| Segall Bryant & Hamill, LLC | 0.01% | No change | 273,522 | $996K |
| Bank of New York Mellon Corp | 0.00% | Add +3.5% | 265,684 | $967K |
| D. E. Shaw & Co. | 0.00% | Reduce -42.0% | 264,900 | $964K |
| Victory Capital Management Inc. | 0.00% | Reduce -30.9% | 260,062 | $947K |
| Ameriprise Financial Inc. | 0.00% | Add +5.4% | 193,368 | $704K |
| UBS Group AG | 0.00% | Add +74.9% | 181,998 | $662K |
| State of Wisconsin Investment Board | 0.00% | Reduce -7.5% | 164,400 | $598K |
| First Trust Advisors LP | 0.00% | Reduce -0.5% | 159,509 | $581K |
| Man Group plc | 0.00% | Add +66.5% | 157,348 | $573K |
| Los Angeles Capital Management LLC | 0.00% | Add +110.0% | 145,060 | $528K |
| STRS Ohio | 0.00% | Add +22.1% | 134,200 | $488K |
| Campbell & CO Investment Adviser LLC | 0.02% | Add +31.5% | 121,177 | $441K |
| Invesco Ltd. | 0.00% | Add +1.4% | 113,091 | $412K |
| Alliancebernstein L.P. | 0.00% | Add +12.2% | 71,510 | $383K |
| Prudential Financial Inc. | 0.00% | Add +3.6% | 104,190 | $379K |
| SummerHaven Investment Management, LLC | 0.20% | No change | 101,025 | $368K |
| Nuveen, LLC | 0.00% | No change | 100,899 | $367K |
| Martingale Asset Management L P | 0.01% | Add +0.1% | 92,341 | $336K |
| KLP Kapitalforvaltning As | 0.00% | No change | 87,200 | $317K |
| T. Rowe Price Associates Inc. | 0.00% | Add +32.3% | 83,763 | $305K |
| Vanguard Global Advisers, LLC | 0.00% | Reduce -8.6% | 83,009 | $302K |
| WINTON GROUP Ltd | 0.01% | Reduce -39.2% | 75,647 | $275K |
| Wealth Enhancement Advisory Services, LLC | 0.00% | Add +11.2% | 74,155 | $266K |
| Empirical Financial Services, LLC d.b.a. Empirical Wealth Management | 0.00% | Add +31.8% | 70,772 | $258K |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | Add +93.3% | 69,708 | $254K |
| Canada Pension Plan Investment Board | 0.00% | No change | 69,400 | $253K |
| Inspire Advisors, LLC | 0.02% | Add +68.5% | 68,789 | $250K |
| Schonfeld Strategic Advisors LLC | 0.00% | Add +163.5% | 67,581 | $246K |
| Cambria Investment Management, L.P. | 0.01% | Add +54.5% | 65,033 | $237K |
| Exchange Traded Concepts, LLC | 0.00% | Add +34.7% | 63,144 | $230K |
| XTX Topco Ltd | 0.00% | New | 62,668 | $228K |
| Jefferies Financial Group Inc. | 0.00% | No change | 62,667 | $228K |
| EntryPoint Capital, LLC | 0.05% | Add +58.0% | 60,349 | $220K |
| FMR LLC | 0.00% | Add +151.5% | 58,858 | $214K |
| Point72 Asset Management | 0.00% | Add +54.3% | 58,212 | $212K |
| Atom Investors LP | 0.02% | New | 57,464 | $209K |
| Susquehanna International Group, LLP | 0.00% | Add +115.3% | 53,314 | $194K |
| Squarepoint Ops LLC | 0.00% | Reduce -12.9% | 51,040 | $186K |
| Rhumbline Advisers | 0.00% | Reduce -1.4% | 50,413 | $183K |
| Strategic Blueprint, LLC | 0.01% | Add +0.1% | 50,065 | $182K |
| DAVENPORT & Co LLC | 0.00% | No change | 50,000 | $182K |
| Abel Hall, LLC | 0.03% | New | 45,563 | $166K |
| Russell Investments Group, Ltd. | 0.00% | Add +17.0% | 44,055 | $160K |
| Empowered Funds, LLC | 0.00% | Add +43.9% | 43,615 | $159K |
| Cresset Asset Management, LLC | 0.00% | No change | 40,690 | $148K |
| Viking Fund Management LLC | 0.01% | New | 40,000 | $146K |
| Public Employees Retirement System of Ohio | 0.00% | Add +116.8% | 38,800 | $141K |
| Deutsche Bank AG | 0.00% | Add +1.9% | 37,870 | $138K |
| Tudor Investment Corporation | 0.00% | New | 37,237 | $136K |
| Wells Fargo & Company | 0.00% | Add +135.4% | 35,399 | $129K |
| Quantinno Capital Management LP | 0.00% | Add +3.3% | 32,642 | $119K |
| Sei Investments Co. | 0.00% | Reduce -41.1% | 28,520 | $104K |
| Citigroup Inc. | 0.00% | Add +64.5% | 28,411 | $103K |
| Guggenheim Capital LLC | 0.00% | Add +32.2% | 26,935 | $98K |
| JPMorgan Chase & Co. | 0.00% | Add +6.1% | 26,723 | $96K |
| Washington Growth Strategies LLC | 0.05% | No change | 26,216 | $95K |
| Ieq Capital, LLC | 0.00% | Add +92.1% | 26,000 | $95K |
| Significant Wealth Partners LLC | 0.10% | Add +8.9% | 25,192 | $92K |
| CIBC Bancorp USA Inc. | 0.00% | Add +1.1% | 23,650 | $86K |
| Cerity Partners LLC | 0.00% | Add +113.5% | 23,036 | $84K |
| Aquatic Capital Management LLC | 0.00% | Add +1541.4% | 22,766 | $83K |
| MetLife Investment Management, LLC | 0.00% | Add +86.1% | 21,880 | $80K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -0.3% | 19,464 | $71K |
| Mercer Global Advisors Inc. | 0.00% | Add +1.5% | 19,170 | $70K |
| October Effect Ltd | 0.07% | Reduce -6.4% | 19,000 | $69K |
| Mariner, LLC | 0.00% | Reduce -11.9% | 18,523 | $67K |
| OneAscent Financial Services LLC | 0.00% | Add +79.6% | 18,198 | $66K |
| Envestnet Asset Management Inc. | 0.00% | Add +49.7% | 18,040 | $66K |
| State of Alaska, Department of Revenue | 0.00% | Add +63.5% | 18,018 | $64K |
"% of holder's portfolio" is SIGA's weight in each manager's 13F, not the share of Siga Technologies Inc. the manager owns.