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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, Q3 2025

Institutional positions in Siga Technologies Inc as of Sep 30, 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
197
+20 vs. Q2 2025
Shares held
34.0M
−461.6K (−1.3%) vs. Q2 2025
Total value
$311.0M
+$86.3M (+38.4%) vs. Q2 2025
New holders
37
68 more added
Sold out
17
56 more reduced

1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: 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 2025: 197 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 2025: $311.0M
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 2025

Shares, value and share of portfolio for each institution holding Siga Technologies Inc; share changes are against Q2 2025.

Institutions holding SIGA in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Avion Wealth108$00.00%00.0%Unchanged
Parkside Financial Bank & Trust1$100.00%00.0%Unchanged
Sunbelt Securities, Inc.3$270.00%−24−88.9%Reduced
True Wealth Design, LLC6$550.00%00.0%Unchanged
Caitong International Asset Management Co., Ltd8$730.00%+8New
IFP Advisors, Inc12$1100.00%+12Added
Root Financial Partners, LLC14$1280.00%+14New
Game Plan Financial Advisors, LLC35$3200.00%00.0%Unchanged
Larson Financial Group LLC47$4300.00%00.0%Unchanged
Smartleaf Asset Management LLC88$7880.00%00.0%Unchanged
Rialto Wealth Management, LLC89$8150.00%00.0%Unchanged
Principal Securities, Inc.100$9150.00%00.0%Unchanged
UMA Financial Services, Inc.154$1.41K0.00%00.0%Unchanged
EverSource Wealth Advisors, LLC211$1.93K0.00%+34+19.2%Added
Daiwa Securities Group Inc.270$2.00K0.00%00.0%Unchanged
Toth Financial Advisory Corp250$2.29K0.00%00.0%Unchanged
The PNC Financial Services Group, Inc.255$2.33K0.00%−25−8.9%Reduced
Rothschild Investment LLC255$2.33K0.00%00.0%Unchanged
Essential Partners LLC277$2.54K0.00%+277New
US Bancorp313$2.86K0.00%−9,380−96.8%Reduced
GAMMA Investing LLC319$2.92K0.00%−50−13.6%Reduced
Optiver Holding B.V.450$4.12K0.00%+450New
SJS Investment Consulting Inc.455$4.16K0.00%+455New
Altshuler Shaham Ltd488$4.46K0.00%+488New
Harbor Capital Advisors, Inc.625$6.00K0.00%−135,832−99.5%Reduced
BNP PARIBAS ASSET MANAGEMENT Holding S.A.634$6.00K0.00%−162−20.4%Reduced
Sterling Capital Management LLC664$6.08K0.00%+257+63.1%Added
Farther Finance Advisors, LLC801$7.33K0.00%+229+40.0%Added
Covestor Ltd923$8.00K0.00%+914+10,155.6%Added
Allworth Financial LP899$8.23K0.00%+61+7.3%Added
Global Retirement Partners, LLC1,119$10.2K0.00%00.0%Unchanged
Versant Capital Management, Inc1,242$11.4K0.00%00.0%Unchanged
Private Wealth Asset Management, LLC1,350$12.4K0.00%00.0%Unchanged
SRS Capital Advisors, Inc.1,504$13.8K0.00%+1,353+896.0%Added
Nisa Investment Advisors, LLC1,527$14.0K0.00%00.0%Unchanged
GF Fund Management Co. Ltd.1,529$14.0K0.00%−299−16.4%Reduced
Amalgamated Bank1,680$15.0K0.00%00.0%Unchanged
Curio Wealth, LLC2,000$18.3K0.01%+2,000New
Clearstead Advisors, LLC2,055$18.8K0.00%−945−31.5%Reduced
CWM, LLC2,022$19.0K0.00%+1,499+286.6%Added
Great West Life Assurance Co2,265$20.0K0.00%00.0%Unchanged
Quarry LP2,488$22.8K0.01%+2,488New
Mirae Asset Global Investments Co., Ltd.2,768$25.3K0.00%+8+0.3%Added
Point72 (DIFC) Ltd2,848$26.1K0.00%+2,848New
WealthCollab, LLC2,857$26.1K0.01%+752+35.7%Added
Advisor Group Holdings, Inc.3,093$26.1K0.00%+31+1.0%Added
Tower Research Capital LLC (TRC)2,885$26.4K0.00%−3,932−57.7%Reduced
National Bank of Canada2,963$27.1K0.00%−37−1.2%Reduced
Group One Trading, L.P.2,995$27.4K0.00%+703+30.7%Added
SBI Securities Co., Ltd.3,520$32.2K0.00%−670−16.0%Reduced
Signaturefd, LLC3,627$33.2K0.00%+73+2.1%Added
State of Alaska, Department of Revenue3,767$34.0K0.00%+3,767New
Ameritas Investment Partners, Inc.3,774$34.5K0.00%00.0%Unchanged
Quadrant Capital Group LLC4,011$36.7K0.00%+4,011New
FMR LLC4,014$36.7K0.00%+290+7.8%Added
DekaBank Deutsche Girozentrale5,160$48.0K0.00%00.0%Unchanged
Parallel Advisors, LLC5,420$49.6K0.00%+159+3.0%Added
Simplex Trading, LLC5,682$51.0K0.00%+3,366+145.3%Added
Citigroup Inc7,422$67.9K0.00%−10,913−59.5%Reduced
BNP Paribas Arbitrage, SA9,041$82.7K0.00%+4,380+94.0%Added
Gotham Asset Management, LLC10,059$92.0K0.00%+10,059New
Teacher Retirement System of Texas10,441$95.5K0.00%−1,113−9.6%Reduced
Quest Partners LLC10,550$96.5K0.01%+10,550New
Captrust Financial Advisors10,911$99.8K0.00%+605+5.9%Added
Kestra Advisory Services, LLC11,381$104.1K0.00%−120−1.0%Reduced
Police & Firemen's Retirement System of New Jersey11,414$104.4K0.00%+2,188+23.7%Added
One Wealth Advisors, LLC11,622$106.3K0.01%+11,622New
Universal- Beteiligungs- und Servicegesellschaft mbH12,078$110.5K0.00%−2,537−17.4%Reduced
China Universal Asset Management Co., Ltd.12,551$114.8K0.01%−1,798−12.5%Reduced
Arizona State Retirement System12,699$116.2K0.00%+210+1.7%Added
Onyx Bridge Wealth Group LLC13,000$119.0K0.01%00.0%Unchanged
Globeflex Capital L P13,104$119.9K0.02%00.0%Unchanged
Sherbrooke Park Advisers LLC13,628$124.7K0.06%+13,628New
Commonwealth Equity Services, LLC13,838$127.0K0.00%00.0%Unchanged
SG Americas Securities, LLC13,880$127.0K0.00%+13,880New
CI Private Wealth, LLC14,067$128.7K0.00%−30−0.2%Reduced
Schonfeld Strategic Advisors LLC14,103$129.0K0.00%+14,103New
Bailard, Inc.14,200$129.9K0.00%+2,300+19.3%Added
Manufacturers Life Insurance Company, The14,301$130.9K0.00%−1,363−8.7%Reduced
Vestcor Inc14,603$134.0K0.00%+14,603New
PharVision Advisers, LLC15,061$137.8K0.08%+15,061New
Engineers Gate Manager LP16,135$147.6K0.00%+16,135New
Lazard Asset Management LLC16,162$147.9K0.00%+16,162New
Quantinno Capital Management LP17,231$157.7K0.00%+611+3.7%Added
Evergreen Capital Management LLC18,103$165.6K0.00%−87−0.5%Reduced
Graham Capital Management, L.P.18,358$168.0K0.01%+18,358New
Public Employees Retirement System of Ohio18,900$172.9K0.00%00.0%Unchanged
Mirae Asset Global ETFs Holdings Ltd.19,268$176.3K0.00%−3,212−14.3%Reduced
Prelude Capital Management, LLC19,700$180.3K0.01%+19,700New
Corton Capital Inc.19,823$181.4K0.45%+19,823New
Metis Global Partners, LLC20,164$184.5K0.00%00.0%Unchanged
Intech Investment Management LLC20,289$185.6K0.00%−2,667−11.6%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)21,057$192.7K0.00%00.0%Unchanged
CIBC Private Wealth Group, LLC21,316$195.0K0.00%00.0%Unchanged
JustInvest LLC21,702$198.6K0.00%+270+1.3%Added
Cambria Investment Management, L.P.21,884$200.2K0.01%+951+4.5%Added
MetLife Investment Management21,903$200.4K0.00%−5,621−20.4%Reduced
Envestnet Asset Management Inc22,179$202.9K0.00%+22,179New
State of Tennessee, Treasury Department23,244$212.7K0.00%−7,464−24.3%Reduced
Cim Investment Mangement Inc24,379$223.1K0.06%−26,256−51.9%Reduced