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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; 161 institutions reported holding it in 13F filings for Q2 2026, worth $127.0M in total; no superinvestor holds it.

13F holders, Q1 2025

Institutional positions in Siga Technologies Inc as of Mar 31, 2025. 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
167
−1 vs. Q4 2024
Shares held
35.1M
+660.3K (+1.9%) vs. Q4 2024
Total value
$192.5M
−$14.7M (−7.1%) vs. Q4 2024
New holders
22
56 more added
Sold out
23
59 more reduced

2 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2024: 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.

Institutional holdersQ1 2025: 167 institutions
Q1 2021: 105 institutionsQ2 2021: 102 institutionsQ3 2021: 104 institutionsQ4 2021: 116 institutionsQ1 2022: 110 institutionsQ2 2022: 142 institutionsQ3 2022: 155 institutionsQ4 2022: 160 institutionsQ1 2023: 142 institutionsQ2 2023: 131 institutionsQ3 2023: 129 institutionsQ4 2023: 131 institutionsQ1 2024: 144 institutionsQ2 2024: 151 institutionsQ3 2024: 169 institutionsQ4 2024: 170 institutionsQ1 2025: 167 institutionsQ2 2025: 178 institutionsQ3 2025: 197 institutionsQ4 2025: 200 institutionsQ1 2026: 183 institutionsQ2 2026: 161 institutions
Value heldQ1 2025: $192.5M
Q1 2021: $139.8MQ2 2021: $128.2MQ3 2021: $159.6MQ4 2021: $166.7MQ1 2022: $150.5MQ2 2022: $302.3MQ3 2022: $296.8MQ4 2022: $227.9MQ1 2023: $182.1MQ2 2023: $168.1MQ3 2023: $180.8MQ4 2023: $190.9MQ1 2024: $288.1MQ2 2024: $256.6MQ3 2024: $240.7MQ4 2024: $208.0MQ1 2025: $192.5MQ2 2025: $224.8MQ3 2025: $311.0MQ4 2025: $219.1MQ1 2026: $184.0MQ2 2026: $127.0M
Institutions holding SIGA and their total value by quarter
QuarterHoldersValue
Q2 2026161$127.0M
Q1 2026183$184.0M
Q4 2025200$219.1M
Q3 2025197$311.0M
Q2 2025178$224.8M
Q1 2025167$192.5M
Q4 2024170$208.0M
Q3 2024169$240.7M
Q2 2024151$256.6M
Q1 2024144$288.1M
Q4 2023131$190.9M
Q3 2023129$180.8M
Q2 2023131$168.1M
Q1 2023142$182.1M
Q4 2022160$227.9M
Q3 2022155$296.8M
Q2 2022142$302.3M
Q1 2022110$150.5M
Q4 2021116$166.7M
Q3 2021104$159.6M
Q2 2021102$128.2M
Q1 2021105$139.8M

Institutions, Q1 2025

Shares, value and share of portfolio for each institution holding Siga Technologies Inc; share changes are against Q4 2024.

Institutions holding SIGA in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Manufacturers Life Insurance Company, The17,282$94.7K0.00%−381−2.2%Reduced
Lazard Asset Management LLC16,182$87.0K0.00%−6,007−27.1%Reduced
JustInvest LLC14,816$81.2K0.00%+4,768+47.5%Added
China Universal Asset Management Co., Ltd.14,323$78.5K0.01%−817−5.4%Reduced
State Board of Administration of Florida Retirement System13,360$73.2K0.00%00.0%Unchanged
Virginia Retirement Systems Et Al13,341$73.1K0.00%+13,341New
ProShare Advisors LLC13,246$72.6K0.00%−3,178−19.3%Reduced
Globeflex Capital L P13,104$71.8K0.01%00.0%Unchanged
Voya Investment Management LLC13,065$71.6K0.00%−1,722−11.6%Reduced
Atom Investors LP13,012$71.3K0.01%+13,012New
Onyx Bridge Wealth Group LLC13,000$71.2K0.01%00.0%Unchanged
Commonwealth Equity Services, LLC12,529$69.0K0.00%−48−0.4%Reduced
Arizona State Retirement System12,267$67.2K0.00%−150−1.2%Reduced
CI Private Wealth, LLC12,112$66.4K0.00%−499−4.0%Reduced
Teacher Retirement System of Texas11,530$63.2K0.00%−1,299−10.1%Reduced
Teza Capital Management LLC11,141$61.1K0.03%−28,232−71.7%Reduced
Verition Fund Management LLC11,030$60.4K0.00%−4,385−28.4%Reduced
Captrust Financial Advisors10,895$59.7K0.00%+142+1.3%Added
Corton Capital Inc.10,594$58.1K0.19%+10,594New
CIBC World Markets Corp10,277$56.3K0.00%+10,277New
Russell Investments Group, Ltd.9,925$54.4K0.00%+9,771+6,344.8%Added
Police & Firemen's Retirement System of New Jersey9,102$49.9K0.00%00.0%Unchanged
Advisor Group Holdings, Inc.5,385$29.5K0.00%−315−5.5%Reduced
Parallel Advisors, LLC4,204$23.0K0.00%+3,926+1,412.2%Added
Quadrant Capital Group LLC4,196$23.0K0.00%−153−3.5%Reduced
Ameritas Investment Partners, Inc.3,774$20.7K0.00%00.0%Unchanged
BNP Paribas Arbitrage, SA3,477$19.1K0.00%−2,898−45.5%Reduced
SBI Securities Co., Ltd.3,362$18.4K0.00%−37−1.1%Reduced
Tower Research Capital LLC (TRC)3,148$17.3K0.00%+2,545+422.1%Added
Clearstead Advisors, LLC3,000$16.4K0.00%00.0%Unchanged
Steward Partners Investment Advisory, LLC2,900$15.9K0.00%00.0%Unchanged
Mirae Asset Global Investments Co., Ltd.2,389$13.3K0.00%+10+0.4%Added
Simplex Trading, LLC2,447$13.0K0.00%−66,422−96.4%Reduced
Great West Life Assurance Co2,265$12.0K0.00%00.0%Unchanged
Signaturefd, LLC2,160$11.8K0.00%+782+56.7%Added
National Bank of Canada2,000$11.0K0.00%+1,000+100.0%Added
GF Fund Management Co. Ltd.1,828$10.0K0.00%+329+21.9%Added
Amalgamated Bank1,680$9.00K0.00%00.0%Unchanged
WealthCollab, LLC1,583$8.68K0.01%+669+73.2%Added
Nisa Investment Advisors, LLC1,477$8.09K0.00%+63+4.5%Added
Private Wealth Asset Management, LLC1,350$7.40K0.00%+1,350New
Vestcor Inc932$5.00K0.00%−47,245−98.1%Reduced
Allworth Financial LP657$4.26K0.00%00.0%Unchanged
Caitong International Asset Management Co., Ltd442$2.42K0.00%+442New
Quantbot Technologies LP394$2.16K0.00%+394New
EverSource Wealth Advisors, LLC297$1.63K0.00%+97+48.5%Added
Sterling Capital Management LLC255$1.40K0.00%−195−43.3%Reduced
Rothschild Investment LLC205$1.12K0.00%+205New
Federation des caisses Desjardins du Quebec193$1.06K0.00%00.0%Unchanged
Daiwa Securities Group Inc.270$1.00K0.00%00.0%Unchanged
CWM, LLC226$1.00K0.00%−17−7.0%Reduced
Rise Advisors, LLC182$9970.00%+182New
SRS Capital Advisors, Inc.151$8280.00%+151New
Lindbrook Capital, LLC150$8220.00%+6+4.2%Added
Smartleaf Asset Management LLC110$6100.00%−91−45.3%Reduced
Principal Securities, Inc.100$6010.00%00.0%Unchanged
Farther Finance Advisors, LLC96$5260.00%00.0%Unchanged
Coldstream Capital Management Inc89$4880.00%+89New
Rialto Wealth Management, LLC89$4880.00%+89New
Parkside Financial Bank & Trust85$4670.00%+85New
Skopos Labs, Inc.80$4390.00%−156−66.1%Reduced
Larson Financial Group LLC47$2580.00%−4,353−98.9%Reduced
Game Plan Financial Advisors, LLC35$1920.00%00.0%Unchanged
Covestor Ltd9$00.00%−4,196−99.8%Reduced
Royal Bank of Canada94$00.00%−2,439−96.3%Reduced
Capital Advisors, Ltd. LLC22$00.00%00.0%Unchanged
Avion Wealth108$00.00%+108New
Prudential Financial Inc0$00.00%−188,970−100.0%Sold out
Winton Group Ltd0$00.00%−101,644−100.0%Sold out
Alps Advisors Inc0$00.00%−44,250−100.0%Sold out
ExodusPoint Capital Management, LP0$00.00%−44,017−100.0%Sold out
Group One Trading, L.P.0$00.00%−35,827−100.0%Sold out
Cornercap Investment Counsel Inc0$00.00%−34,894−100.0%Sold out
Oxford Asset Management LLP0$00.00%−33,735−100.0%Sold out
Allspring Global Investments Holdings, LLC0$00.00%−31,183−100.0%Sold out
SG Americas Securities, LLC0$00.00%−22,819−100.0%Sold out
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management0$00.00%−19,902−100.0%Sold out
Bailard, Inc.0$00.00%−18,800−100.0%Sold out
O'Shaughnessy Asset Management, LLC0$00.00%−16,010−100.0%Sold out
Wedbush Securities Inc0$00.00%−15,914−100.0%Sold out
Dynamic Technology Lab Private Ltd0$00.00%−13,037−100.0%Sold out
Gsa Capital Partners LLP0$00.00%−10,491−100.0%Sold out
DekaBank Deutsche Girozentrale0$00.00%−5,160−100.0%Sold out
US Bancorp0$00.00%−2,414−100.0%Sold out
Northwestern Mutual Wealth Management Co0$00.00%−1,000−100.0%Sold out
Venturi Wealth Management, LLC0$00.00%−776−100.0%Sold out
GAMMA Investing LLC0$00.00%−137−100.0%Sold out
Synergy Financial Management, LLC0$00.00%−100−100.0%Sold out
Jones Financial Companies LLLP0$00.00%−39−100.0%Sold out
Sunbelt Securities, Inc.0$00.00%−27−100.0%Sold out
Nuveen Asset Management, LLC––––Not filed
Global Retirement Partners, LLC––––Not filed