Who Owns Siga Technologies Inc (SIGA)? -- Institutional Holders (2026-03-31)

220 institutions reported holding $184.1M of Siga Technologies Inc (SIGA) in SEC 13F filings for 2026-03-31. Largest institutional holders: BlackRock, Inc. ($18.7M), DIMENSIONAL FUND ADVISORS LP ($14.5M), AltraVue Capital, LLC ($13.0M), VANGUARD CAPITAL MANAGEMENT LLC ($9.2M), ARROWSTREET CAPITAL, LIMITED PARTNERSHIP ($8.2M). Source: SEC Form 13F.

RankInstitutionValueSharesChange
1BlackRock, Inc.$18.7M3.5MTrimmed
2DIMENSIONAL FUND ADVISORS LP$14.5M2.7MAdded
3AltraVue Capital, LLC$13.0M2.4MAdded
4VANGUARD CAPITAL MANAGEMENT LLC$9.2M1.7MNew
5ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$8.2M1.5MAdded
6AMERICAN CENTURY COMPANIES INC$7.1M1.3MAdded
7GEODE CAPITAL MANAGEMENT, LLC$7.0M1.3MAdded
8AQR CAPITAL MANAGEMENT LLC$6.5M1.2MAdded
9STATE STREET CORP$5.4M1.0MTrimmed
10FIRST WILSHIRE SECURITIES MANAGEMENT INC$4.8M890,498Added
11HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC$4.4M827,047Added
12CITADEL ADVISORS LLC$3.8M705,137Trimmed
13ROYCE & ASSOCIATES LP$3.6M667,646Added
14GOLDMAN SACHS GROUP INC$3.3M624,903Trimmed
15NEW YORK STATE COMMON RETIREMENT FUND$3.2M590,761Added
16VANGUARD PORTFOLIO MANAGEMENT LLC$3.1M586,974New
17LSV ASSET MANAGEMENT$2.9M538,630Hold
18Legato Capital Management LLC$2.7M512,039Trimmed
19BANK OF AMERICA CORP /DE/$2.6M484,672Trimmed
20RENAISSANCE TECHNOLOGIES LLC$2.5M475,013Added
21MILLENNIUM MANAGEMENT LLC$2.5M466,324Trimmed
22D. E. Shaw & Co., Inc.$2.4M456,385Trimmed
23DENALI ADVISORS LLC$2.3M436,887Added
24TWO SIGMA INVESTMENTS, LP$2.3M433,661Added
25Qube Research & Technologies Ltd$2.2M415,104Added

Source: SEC Form 13F filings · as of 2026-03-31