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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; 160 institutions reported holding it in 13F filings for Q2 2026, worth $126.9M in total; no superinvestor holds it.

13F holders, Q2 2026

Institutional positions in Siga Technologies Inc as of Jun 30, 2026. 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
160
−19 vs. Q1 2026
Shares held
34.8M
+701.6K (+2.1%) vs. Q1 2026
Total value
$126.9M
−$55.7M (−30.5%) vs. Q1 2026
New holders
16
80 more added
Sold out
35
46 more reduced

4 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: 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 holdersQ2 2026: 160 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: 160 institutions
Value heldQ2 2026: $126.9M
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: $126.9M
Institutions holding SIGA and their total value by quarter
QuarterHoldersValue
Q2 2026160$126.9M
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, Q2 2026

Shares, value and share of portfolio for each institution holding Siga Technologies Inc; share changes are against Q1 2026.

Institutions holding SIGA in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Smartleaf Asset Management LLC12$430.00%00.0%Unchanged
Ritter Daniher Financial Advisory LLC18$660.00%+5+38.5%Added
Game Plan Financial Advisors, LLC35$1270.00%00.0%Unchanged
WealthCollab, LLC41$1500.00%−2,828−98.6%Reduced
SJS Investment Consulting Inc.72$2630.00%−55−43.3%Reduced
Wealth Enhancement Trust Services, Inc.76$2770.00%+76New
TD Private Client Wealth LLC92$3350.00%+92New
Fifth Third Bancorp127$4620.00%+127New
Harbour Investments, Inc.128$4660.00%−10−7.2%Reduced
Zions Bancorporation, National Association154$5610.00%+154New
IFP Advisors, Inc166$6040.00%+105+172.1%Added
Rothschild Investment LLC172$6260.00%−219−56.0%Reduced
Rockefeller Capital Management L.P.174$6330.00%−456−72.4%Reduced
Covestor Ltd288$1.00K0.00%+87+43.3%Added
EverSource Wealth Advisors, LLC315$1.15K0.00%+113+55.9%Added
Jones Financial Companies LLLP315$1.24K0.00%+315New
Essential Partners LLC487$1.77K0.00%+383+368.3%Added
Markowski Investments500$1.82K0.00%+500New
California State Teachers Retirement System576$2.10K0.00%−1,647−74.1%Reduced
Farther Finance Advisors, LLC621$2.26K0.00%−914−59.5%Reduced
UBS Asset Management Americas Inc625$2.27K0.00%00.0%Unchanged
Group One Trading, L.P.832$3.03K0.00%−2,348−73.8%Reduced
Parallel Advisors, LLC833$3.03K0.00%+530+174.9%Added
Sterling Capital Management LLC852$3.10K0.00%+360+73.2%Added
Allworth Financial LP1,059$3.85K0.00%−75−6.6%Reduced
Harbor Capital Advisors, Inc.1,133$4.00K0.00%+444+64.4%Added
Global Retirement Partners, LLC1,268$4.62K0.00%+1,268New
The PNC Financial Services Group, Inc.1,348$4.91K0.00%+393+41.2%Added
GF Fund Management Co. Ltd.1,487$5.41K0.00%−111−6.9%Reduced
Royal Bank of Canada1,728$7.00K0.00%−518−23.1%Reduced
SRS Capital Advisors, Inc.2,084$7.58K0.00%+1,962+1,608.2%Added
Clearstead Advisors, LLC2,165$7.88K0.00%+165+8.3%Added
Tower Research Capital LLC (TRC)2,837$10.3K0.00%+393+16.1%Added
Mirae Asset Global Investments Co., Ltd.3,208$11.7K0.00%−527−14.1%Reduced
Legal & General Group Plc3,638$13.2K0.00%−7,059−66.0%Reduced
Ameritas Investment Partners, Inc.3,774$13.7K0.00%00.0%Unchanged
SBI Securities Co., Ltd.3,995$14.5K0.00%−4−0.1%Reduced
Simplex Trading, LLC4,885$17.8K0.00%+402+9.0%Added
Nisa Investment Advisors, LLC5,003$18.2K0.00%+4,368+687.9%Added
Federated Hermes, Inc.6,290$22.9K0.00%−22,132−77.9%Reduced
Signaturefd, LLC7,955$29.0K0.00%+3,105+64.0%Added
Advisor Group Holdings, Inc.8,191$29.8K0.00%+570+7.5%Added
BNP Paribas Arbitrage, SA8,540$31.1K0.00%−1,783−17.3%Reduced
Voya Investment Management LLC10,092$36.7K0.00%+10,092New
Franklin Resources Inc10,959$39.9K0.00%−32,903−75.0%Reduced
Intech Investment Management LLC11,362$41.4K0.00%+11,362New
Police & Firemen's Retirement System of New Jersey11,414$41.5K0.00%00.0%Unchanged
China Universal Asset Management Co., Ltd.11,415$41.6K0.00%−1,293−10.2%Reduced
Metis Global Partners, LLC11,766$42.8K0.00%00.0%Unchanged
Onyx Bridge Wealth Group LLC13,000$47.3K0.00%00.0%Unchanged
Barclays PLC13,140$47.8K0.00%−1,176−8.2%Reduced
State Board of Administration of Florida Retirement System13,360$48.6K0.00%−118,266−89.9%Reduced
Captrust Financial Advisors14,116$51.4K0.00%+1,313+10.3%Added
Manufacturers Life Insurance Company, The14,366$52.3K0.00%+2,724+23.4%Added
R Squared Ltd14,793$53.8K0.03%+14,793New
Stifel Financial Corp15,197$55.3K0.00%+15,197New
State of Wyoming15,350$55.9K0.01%−69,890−82.0%Reduced
Headlands Technologies LLC15,442$56.2K0.01%+2,581+20.1%Added
Commonwealth Equity Services, LLC15,534$56.5K0.00%+1,801+13.1%Added
HSBC Holdings PLC16,904$62.4K0.00%+3,519+26.3%Added
State of Alaska, Department of Revenue18,018$64.0K0.00%+7,000+63.5%Added
Envestnet Asset Management Inc18,040$65.7K0.00%+5,987+49.7%Added
OneAscent Financial Services LLC18,198$66.2K0.00%+8,064+79.6%Added
Mariner, LLC18,523$67.4K0.00%−2,500−11.9%Reduced
October Effect Ltd19,000$69.2K0.07%−1,300−6.4%Reduced
Mercer Global Advisors Inc19,170$69.8K0.00%+291+1.5%Added
Mirae Asset Global ETFs Holdings Ltd.19,464$70.8K0.00%−62−0.3%Reduced
MetLife Investment Management21,880$79.6K0.00%+10,123+86.1%Added
Aquatic Capital Management LLC22,766$82.9K0.00%+21,379+1,541.4%Added
Cerity Partners LLC23,036$83.9K0.00%+12,248+113.5%Added
CIBC Bancorp USA Inc.23,650$86.1K0.00%+266+1.1%Added
Significant Wealth Partners LLC25,192$91.7K0.10%+2,061+8.9%Added
Ieq Capital, LLC26,000$94.6K0.00%+12,466+92.1%Added
Washington Growth Strategies LLC26,216$95.4K0.05%00.0%Unchanged
JPMorgan Chase & Co26,723$96.5K0.00%+1,537+6.1%Added
Guggenheim Capital LLC26,935$98.0K0.00%+6,559+32.2%Added
Citigroup Inc28,411$103.4K0.00%+11,140+64.5%Added
SEI Investments Co28,520$103.8K0.00%−19,900−41.1%Reduced
Quantinno Capital Management LP32,642$118.8K0.00%+1,053+3.3%Added
Wells Fargo & Company35,399$128.9K0.00%+20,361+135.4%Added
Tudor Investment Corp Et Al37,237$135.5K0.00%+37,237New
Deutsche Bank AG37,870$137.8K0.00%+706+1.9%Added
Public Employees Retirement System of Ohio38,800$141.2K0.00%+20,900+116.8%Added
Viking Fund Management LLC40,000$145.6K0.01%+40,000New
Cresset Asset Management, LLC40,690$148.1K0.00%00.0%Unchanged
Empowered Funds, LLC43,615$158.8K0.00%+13,299+43.9%Added
Russell Investments Group, Ltd.44,055$160.4K0.00%+6,390+17.0%Added
Abel Hall, LLC45,563$165.8K0.03%+45,563New
Davenport & Co LLC50,000$182.0K0.00%00.0%Unchanged
Strategic Blueprint, LLC50,065$182.2K0.01%+65+0.1%Added
Rhumbline Advisers50,413$183.5K0.00%−729−1.4%Reduced
Squarepoint Ops LLC51,040$185.8K0.00%−7,531−12.9%Reduced
Susquehanna International Group, LLP53,314$194.1K0.00%+28,547+115.3%Added
Atom Investors LP57,464$209.2K0.02%+57,464New
Point72 Asset Management, L.P.58,212$211.9K0.00%+20,484+54.3%Added
FMR LLC58,858$214.2K0.00%+35,456+151.5%Added
EntryPoint Capital, LLC60,349$219.7K0.05%+22,149+58.0%Added
Jefferies Financial Group Inc.62,667$228.1K0.00%00.0%Unchanged
XTX Topco Ltd62,668$228.1K0.00%+62,668New
Exchange Traded Concepts, LLC63,144$229.8K0.00%+16,266+34.7%Added