Skip to main content

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, Q3 2024

Institutional positions in Siga Technologies Inc as of Sep 30, 2024. 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
169
+19 vs. Q2 2024
Shares held
35.6M
+5.76M (+19.3%) vs. Q2 2024
Total value
$240.7M
+$13.8M (+6.1%) vs. Q2 2024
New holders
37
56 more added
Sold out
18
46 more reduced

1 institution that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2024: 169 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 heldQ3 2024: $240.7M
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, Q3 2024

Shares, value and share of portfolio for each institution holding Siga Technologies Inc; share changes are against Q2 2024.

Institutions holding SIGA in Q3 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Alps Advisors Inc44,750$302.1K0.00%+44,750New
Franklin Resources Inc45,981$310.4K0.00%+406+0.9%Added
TD Waterhouse Canada Inc.46,689$324.3K0.00%+46,689New
CWA Asset Management Group, LLC49,259$332.5K0.02%+49,259New
Legal & General Group Plc51,038$344.5K0.00%+12,070+31.0%Added
Citigroup Inc51,155$345.3K0.00%+39,374+334.2%Added
James Investment Research Inc53,546$361.4K0.04%00.0%Unchanged
Prosperity Wealth Management, Inc.56,480$381.2K0.15%+56,480New
Engineers Gate Manager LP57,651$389.1K0.01%+12,752+28.4%Added
Ameriprise Financial Inc64,649$436.4K0.00%−88,728−57.8%Reduced
Alliancebernstein L.P.65,110$439.5K0.00%00.0%Unchanged
Martingale Asset Management L P65,415$441.6K0.01%+34,035+108.5%Added
STRS Ohio67,100$452.9K0.00%−2,400−3.5%Reduced
Rhumbline Advisers67,961$458.7K0.00%−1,986−2.8%Reduced
Algert Global LLC68,796$464.4K0.01%+68,796New
JPMorgan Chase & Co70,299$474.5K0.00%+42,669+154.4%Added
Aviva PLC75,278$508.1K0.00%−11,616−13.4%Reduced
Barclays PLC77,812$525.2K0.00%−381−0.5%Reduced
Swiss National Bank83,900$566.3K0.00%00.0%Unchanged
Penn Mutual Asset Management, LLC85,080$574.3K1.14%+28,330+49.9%Added
SummerHaven Investment Management, LLC93,804$633.2K0.39%+93,804New
State Board of Administration of Florida Retirement System100,587$679.0K0.00%+87,227+652.9%Added
UBS Asset Management Americas Inc104,940$708.3K0.00%−2,501−2.3%Reduced
Los Angeles Capital Management LLC105,143$709.7K0.00%−12,000−10.2%Reduced
LSV Asset Management106,388$718.0K0.00%00.0%Unchanged
Prudential Financial Inc111,570$753.1K0.00%+111,570New
Wellington Management Group LLP112,197$757.3K0.00%+112,197New
Renaissance Technologies LLC123,600$834.3K0.00%+30,664+33.0%Added
Invesco Ltd.133,748$902.8K0.00%−53,233−28.5%Reduced
Winton Group Ltd145,975$985.3K0.07%+7,315+5.3%Added
First Trust Advisors LP147,502$995.6K0.00%+34,492+30.5%Added
Nuveen Asset Management, LLC148,721$1.00M0.00%00.0%Unchanged
Jane Street Group, LLC158,919$1.07M0.00%+50,821+47.0%Added
Harbor Capital Advisors, Inc.162,706$1.10M0.05%+162,706New
Bank of New York Mellon Corp190,042$1.28M0.00%−4,775−2.5%Reduced
Allspring Global Investments Holdings, LLC211,236$1.43M0.00%+133,597+172.1%Added
Denali Advisors LLC239,190$1.61M0.17%+900.0%Added
Goldman Sachs Group Inc256,819$1.73M0.00%−597,532−69.9%Reduced
Victory Capital Management Inc259,143$1.75M0.00%+14,286+5.8%Added
State of Wisconsin Investment Board314,077$2.12M0.01%+3,300+1.1%Added
Morgan Stanley323,494$2.18M0.00%−20,348−5.9%Reduced
Segall Bryant & Hamill, LLC325,136$2.19M0.03%+5,772+1.8%Added
Federated Hermes, Inc.351,856$2.38M0.01%−662,878−65.3%Reduced
Bank of America Corp394,902$2.67M0.00%+128,350+48.2%Added
Foundry Partners, LLC414,916$2.80M0.14%+414,916New
Northern Trust Corp438,464$2.96M0.00%−25,264−5.4%Reduced
Legato Capital Management LLC466,641$3.15M0.39%+29,283+6.7%Added
Macquarie Group Ltd486,243$3.28M0.00%+314,865+183.7%Added
New York State Common Retirement Fund495,130$3.34M0.00%+26,356+5.6%Added
Uniplan Investment Counsel, Inc.506,389$3.42M0.30%+159,433+46.0%Added
Charles Schwab Investment Management Inc507,262$3.42M0.00%+24,101+5.0%Added
Millennium Management LLC527,566$3.56M0.00%+497,633+1,662.5%Added
General American Investors Co Inc539,738$3.64M0.25%−206,908−27.7%Reduced
D. E. Shaw & Co., Inc.680,513$4.59M0.01%−393,578−36.6%Reduced
Arrowstreet Capital, Limited Partnership806,832$5.45M0.00%+206,093+34.3%Added
Royce & Associates LP858,806$5.80M0.05%−7,450−0.9%Reduced
Kempen Capital Management N.V.924,812$6.24M0.06%−793,031−46.2%Reduced
Jupiter Asset Management Ltd990,648$6.69M0.06%−13,333−1.3%Reduced
Citadel Advisors LLC1,068,571$7.21M0.01%+946,981+778.8%Added
State Street Corp1,097,813$7.41M0.00%−31,353−2.8%Reduced
Geode Capital Management, LLC1,112,743$7.51M0.00%+66,344+6.3%Added
American Century Companies Inc1,157,702$7.81M0.00%+315,943+37.5%Added
Dimensional Fund Advisors LP1,908,139$12.9M0.00%+86,351+4.7%Added
Hotchkis & Wiley Capital Management LLC2,048,440$13.8M0.05%+1,237,620+152.6%Added
AltraVue Capital, LLC2,312,894$15.6M1.40%+135,248+6.2%Added
First Wilshire Securities Management Inc2,438,629$16.5M4.63%−197,956−7.5%Reduced
Vanguard Group Inc2,566,197$17.3M0.00%+124,789+5.1%Added
BlackRock, Inc.4,017,178$27.1M0.00%+4,017,178New
Washington Growth Strategies LLC184––+184New
Price Jennifer C.0$00.00%−360,000−100.0%Sold out
Trexquant Investment LP0$00.00%−242,313−100.0%Sold out
Qube Research & Technologies Ltd0$00.00%−135,284−100.0%Sold out
Marshall Wace, LLP0$00.00%−134,285−100.0%Sold out
LPL Financial LLC0$00.00%−62,931−100.0%Sold out
TRUE Private Wealth Advisors0$00.00%−59,389−100.0%Sold out
Connor, Clark & Lunn Investment Management Ltd.0$00.00%−53,369−100.0%Sold out
Brevan Howard Capital Management LP0$00.00%−41,382−100.0%Sold out
SEI Investments Co0$00.00%−29,645−100.0%Sold out
Campbell & CO Investment Adviser LLC0$00.00%−27,686−100.0%Sold out
Verition Fund Management LLC0$00.00%−26,000−100.0%Sold out
HRT Financial LP0$00.00%−22,869−100.0%Sold out
Gotham Asset Management, LLC0$00.00%−20,621−100.0%Sold out
Toroso Investments, LLC0$00.00%−15,554−100.0%Sold out
NBC Securities, Inc.0$00.00%−1,500−100.0%Sold out
Quarry LP0$00.00%−152−100.0%Sold out
Mather Group, LLC.0$00.00%−110−100.0%Sold out
Quest Partners LLC0$00.00%−1−100.0%Sold out
BlackRock Inc.––––Not filed