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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 2021

Institutional positions in Siga Technologies Inc as of Mar 31, 2021. 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
105
No complete 13F data for Q4 2020
Shares held
21.5M
No complete 13F data for Q4 2020
Total value
$139.8M
No complete 13F data for Q4 2020

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 2021: 105 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 2021: $139.8M
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 2021

Shares, value and share of portfolio for each institution holding Siga Technologies Inc.

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding SIGA in Q1 2021
InstitutionSharesValue% of portfolioChange in sharesAction
FMR LLC175$1.00K0.00%––
Daiwa Securities Group Inc.172$1.00K0.00%––
Captrust Financial Advisors207$1.00K0.00%––
Harbour Investments, Inc.302$2.00K0.00%––
Steward Partners Investment Advisory, LLC600$3.90K0.00%––
The PNC Financial Services Group, Inc.512$4.00K0.00%––
Panagora Asset Management Inc806$5.00K0.00%––
Signaturefd, LLC711$5.00K0.00%––
Macquarie Group Ltd1,355$9.00K0.00%––
Penserra Capital Management LLC1,790$11.0K0.00%––
Simplex Trading, LLC2,067$13.0K0.00%––
Bank of Montreal2,055$14.0K0.00%––
Advisor Group Holdings, Inc.2,200$14.0K0.00%––
Jacobi Capital Management LLC2,500$16.0K0.00%––
Great West Life Assurance Co3,881$25.0K0.00%––
Ameritas Investment Partners, Inc.4,584$30.0K0.00%––
Tower Research Capital LLC (TRC)4,548$30.0K0.00%––
Morgan Stanley4,841$32.0K0.00%––
Citigroup Inc5,482$36.0K0.00%––
Royal Bank of Canada5,765$37.0K0.00%––
Parallel Advisors, LLC6,460$42.0K0.00%––
Elmwood Wealth Management, Inc.6,600$43.0K0.03%––
Clearstead Advisors, LLC7,000$46.0K0.00%––
BNP Paribas Arbitrage, SA7,478$48.6K0.00%––
Legal & General Group Plc7,816$51.0K0.00%––
UBS Group AG9,134$59.0K0.00%––
Creative Planning10,030$65.0K0.00%––
Cresset Asset Management, LLC10,033$65.0K0.00%––
Commonwealth Equity Services, LLC10,290$66.0K0.00%––
Lazard Asset Management LLC10,748$69.0K0.00%––
SG Americas Securities, LLC10,798$70.0K0.00%––
Jump Financial, LLC10,800$70.0K0.01%––
Principal Financial Group Inc11,624$76.0K0.00%––
Franklin Resources Inc12,402$81.0K0.00%––
STRS Ohio12,600$81.0K0.00%––
Cypress Capital Management LLC12,500$81.0K0.01%––
Price T Rowe Associates Inc13,589$88.0K0.00%––
TRUE Private Wealth Advisors14,206$92.0K0.01%––
Zebra Capital Management LLC14,459$94.0K0.10%––
Acadian Asset Management LLC14,747$95.0K0.00%––
Arizona State Retirement System14,645$95.0K0.00%––
Mutual Advisors, LLC14,546$95.0K0.01%––
Zurcher Kantonalbank (Zurich Cantonalbank)14,749$96.0K0.00%––
Metropolitan Life Insurance Co14,870$96.7K0.00%––
Federated Hermes, Inc.15,061$98.0K0.00%––
HRT Financial LP15,714$102.0K0.00%––
Cubist Systematic Strategies, LLC15,807$103.0K0.00%––
Marshall Wace, LLP17,987$117.0K0.00%––
D. E. Shaw & Co., Inc.19,145$124.0K0.00%––
O'Shaughnessy Asset Management, LLC19,985$130.0K0.00%––
Regions Financial Corp21,500$140.0K0.00%––
MetLife Investment Management23,408$152.2K0.00%––
Algert Global LLC23,600$153.0K0.05%––
ETF Managers Group, LLC23,709$155.0K0.00%––
ProShare Advisors LLC24,639$160.0K0.00%––
Voya Investment Management LLC25,933$169.0K0.00%––
Martingale Asset Management L P28,725$187.0K0.00%––
Two Sigma Investments, LP30,227$196.0K0.00%––
American International Group, Inc.30,381$197.0K0.00%––
Manufacturers Life Insurance Company, The32,629$212.0K0.00%––
JPMorgan Chase & Co34,240$223.0K0.00%––
Credit Suisse AG35,304$229.0K0.00%––
Deutsche Bank AG35,275$229.0K0.00%––
Citadel Advisors LLC40,180$261.0K0.00%––
Millennium Management LLC42,681$277.0K0.00%––
Barclays PLC44,326$288.0K0.00%––
Victory Capital Management Inc45,346$295.0K0.00%––
Parametric Portfolio Associates LLC51,520$335.0K0.00%––
UBS Asset Management Americas Inc57,961$376.7K0.00%––
Nisa Investment Advisors, LLC59,435$386.0K0.00%––
Rhumbline Advisers59,724$388.0K0.00%––
IndexIQ Advisors LLC61,558$400.0K0.01%––
Alliancebernstein L.P.64,600$420.0K0.00%––
Invesco Ltd.65,891$428.0K0.00%––
Winton Group Ltd69,377$451.0K0.03%––
State of Wisconsin Investment Board75,600$491.0K0.00%––
Tudor Investment Corp Et Al78,699$512.0K0.01%––
California State Teachers Retirement System78,885$513.0K0.00%––
Bank of America Corp81,665$532.0K0.00%––
Royce & Associates LP87,131$566.0K0.00%––
State Board of Administration of Florida Retirement System89,496$582.0K0.00%––
Nantahala Capital Management, LLC104,702$681.0K0.04%––
California Public Employees Retirement System110,500$718.0K0.00%––
Swiss National Bank114,800$746.0K0.00%––
Los Angeles Capital Management LLC119,860$779.0K0.00%––
Davenport & Co LLC219,077$1.42M0.01%––
Nuveen Asset Management, LLC223,427$1.45M0.00%––
Goldman Sachs Group Inc256,148$1.67M0.00%––
Bank of New York Mellon Corp303,401$1.97M0.00%––
Charles Schwab Investment Management Inc320,904$2.09M0.00%––
New York State Common Retirement Fund379,516$2.47M0.00%––
Legato Capital Management LLC450,060$2.92M0.55%––
Dimensional Fund Advisors LP548,810$3.57M0.00%––
Jet Capital Investors L P565,278$3.67M1.04%––
Northern Trust Corp573,596$3.73M0.00%––
Arrowstreet Capital, Limited Partnership598,005$3.89M0.01%––
Wells Fargo & Company620,817$4.04M0.00%––
Hillsdale Investment Management Inc.647,100$4.21M0.35%––
Renaissance Technologies LLC767,014$4.99M0.01%––
Geode Capital Management, LLC874,518$5.68M0.00%––