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Disclosery

SIGA SIGA TECHNOLOGIES INC

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Stock (common), issuer CIK 1010086

177 managers (183 13F filers) reported a position in SIGA shares at 2026-03-31, 34,389,551 shares in all. 22 filers opened a position and 39 filers sold out during the quarter.

Managers
177
13F filers
183
New
22
Added
66
Reduced
68
Sold out
39
Shares held by filers
34,389,551

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BlackRock, Inc.in group BlackRock, Inc.3,494,193$18.7M<0.01%-95,07713F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP2,702,724$14.5M<0.01%+165,93013F-HRTimelineGroup
VANGUARD GROUP INCgroup of 5 filers holding2,683,178$14.4M+2,664,382Timeline
AltraVue Capital, LLC2,432,024$13M1.12%+23,20013F-HRTimeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …1,525,960$8.16M<0.01%+500,88013F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC1,317,784$7.05M<0.01%+152,29513F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC1,315,545$7.04M<0.01%+310,81113F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC1,219,677$6.53M<0.01%+346,88213F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP1,011,938$5.41M<0.01%-63,63213F-HRTimelineGroup
FIRST WILSHIRE SECURITIES MANAGEMENT INC890,498$4.76M1.07%+206,44513F-HRTimeline
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC827,047$4.42M0.01%+7,60013F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC705,137$3.77M<0.01%-337,94613F-HRTimelineGroup
ROYCE & ASSOCIATES LP667,646$3.57M0.04%+56,62713F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC624,903$3.34M<0.01%-22,24313F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND590,761$3.16M<0.01%+20,20013F-HRTimeline
LSV ASSET MANAGEMENT538,630$2.88M0.01%013F-HRTimeline
Legato Capital Management LLC512,039$2.74M0.25%-68,50613F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/484,672$2.59M<0.01%-156,74913F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC475,013$2.54M<0.01%+96,91313F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC466,324$2.49M<0.01%-22,98613F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.456,385$2.44M<0.01%-98,18613F-HRTimelineGroup
DENALI ADVISORS LLC436,887$2.34M0.26%+75,08713F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP433,661$2.32M<0.01%+423,26113F-HRTimelineGroup
Qube Research & Technologies Ltd415,104$2.22M<0.01%+250,26913F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC376,571$2.01M<0.01%+36,62713F-HRTimeline
Uniplan Investment Counsel, Inc.371,413$1.99M0.2%-24,48413F-HRTimeline
HRT FINANCIAL LP360,067$1.93M<0.01%new13F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co340,321$1.82M<0.01%+23,62013F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP340,175$1.82M<0.01%-35,67213F-HRTimelineGroup
JACOBS LEVY EQUITY MANAGEMENT, INC291,846$1.56M0.01%-204,32013F-HRTimeline
SEGALL BRYANT & HAMILL, LLC273,522$1.46M0.02%-48613F-HR/ATimeline
MORGAN STANLEYin group MORGAN STANLEY263,335$1.41M<0.01%-231,12113F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp256,803$1.37M<0.01%+2,63513F-HRTimelineGroup
NOMURA ASSET MANAGEMENT INTERNATIONAL I…in group NOMURA ASSET MANAGEMENT CO LTD244,853$1.31M<0.01%013F-HRTimelineGroup
MACQUARIE GROUP LTDin group MACQUARIE GROUP LTD244,853$1.31M0.01%013F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC188,484$1.01M<0.01%-105,70513F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson187,521$1M<0.01%-1,19613F-HR/ATimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC183,537$982K<0.01%-14,47313F-HR/ATimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD177,800$951K<0.01%-37,51613F-HRTimeline
Creative Planningin group Creative Planning168,555$902K<0.01%+96,27413F-HRTimelineGroup
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP160,355$858K<0.01%+5,41113F-HRTimelineGroup
STATE BOARD OF ADMINISTRATION OF FLORID…131,626$704K<0.01%-107,34913F-HRTimeline
WINTON GROUP Ltdin group WINTON GROUP Ltd124,391$665K0.02%+27,01413F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.111,518$597K<0.01%-1,91913F-HRTimelineGroup
STRS OHIO109,900$588K<0.01%+19,80013F-HRTimeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC107,138$573K<0.01%+57,48113F-HRTimeline
UBS Group AGgroup of 2 filers holding104,687$560K-45,538Timeline
SummerHaven Investment Management, LLC101,025$540K0.33%-21,68413F-HRTimeline
Nuveen, LLCin group TIAA100,899$540K<0.01%+80113F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC100,590$538K<0.01%+3,69813F-HRTimelineGroup
Man Group plcin group Man Group plc94,513$506K<0.01%+36,96913F-HRTimelineGroup
Trexquant Investment LP93,440$500K<0.01%+35,84313F-HRTimeline
MARTINGALE ASSET MANAGEMENT L P92,260$494K0.01%013F-HRTimeline
Campbell & CO Investment Adviser LLC92,125$493K0.03%+36,47713F-HRTimeline
KLP KAPITALFORVALTNING AS87,200$467K<0.01%-9,00013F-HRTimeline
State of Wyoming85,240$456K0.05%+2,29113F-HRTimeline
ALLIANCEBERNSTEIN L.P.63,710$389K<0.01%013F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD69,400$371K<0.01%-5,60013F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC69,082$370K<0.01%+22,52913F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…66,668$349K<0.01%+72613F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/63,337$339K<0.01%+16,99313F-HRTimeline
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.62,667$335K<0.01%new13F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC58,571$313K<0.01%+43,55713F-HRTimelineGroup
Empirical Financial Services, LLC d.b.a…53,694$287K<0.01%+9,77213F-HRTimeline
JAMES INVESTMENT RESEARCH, INC.53,546$286K0.03%013F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC52,080$279K<0.01%-68,77813F-HRTimelineGroup
RHUMBLINE ADVISERS51,142$274K<0.01%-2,49313F-HRTimeline
DAVENPORT & Co LLC50,000$268K<0.01%013F-HRTimeline
Strategic Blueprint, LLC50,000$268K0.02%-1,10013F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO48,420$259K<0.01%+23,40013F-HRTimelineGroup
EXCHANGE TRADED CONCEPTS, LLC46,878$251K<0.01%+6,99013F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources43,862$235K<0.01%-16,27013F-HRTimelineGroup
DGS Capital Management, LLCin group DGS Capital Management, LLC42,434$227K0.04%-7,93613F-HRTimelineGroup
Cambria Investment Management, L.P.42,083$225K0.01%+16,18513F-HRTimeline
Vestcor Inc41,200$220K0.01%-12,11713F-HRTimeline
Inspire Advisors, LLCin group Inspire Investing, LLC40,823$218K0.02%+24,05613F-HRTimelineGroup
Cresset Asset Management, LLC40,690$218K<0.01%013F-HRTimeline
EntryPoint Capital, LLC38,200$204K0.06%new13F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.37,728$202K<0.01%new13F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…37,665$202K<0.01%+2,41013F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\37,164$199K<0.01%+5,65213F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…36,064$193K<0.01%new13F-HRTimeline
Quantinno Capital Management LP31,589$169K<0.01%+11,59213F-HRTimeline
Empowered Funds, LLC30,316$162K<0.01%new13F-HR/ATimeline
Graham Capital Management, L.P.29,907$160K0.01%new13F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.28,422$152K<0.01%-111,08813F-HRTimelineGroup
MIRABELLA FINANCIAL SERVICES LLP26,812$143K0.01%new13F-HRTimeline
WASHINGTON GROWTH STRATEGIES LLC26,216$140K0.09%013F-HRTimeline
Engineers Gate Manager LP25,996$139K<0.01%new13F-HRTimeline
Schonfeld Strategic Advisors LLC25,644$137K<0.01%-19,11013F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…24,767$133K<0.01%new13F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO25,186$132K<0.01%-159,78013F-HR/ATimelineGroup
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC24,519$131K<0.01%-23,24713F-HRTimelineGroup
CIM INVESTMENT MANAGEMENT INC24,379$130K0.03%013F-HRTimeline
FMR LLCin group FMR LLC23,402$125K<0.01%+17,69313F-HRTimelineGroup
CIBC Bancorp USA Inc.in group CIBC Bancorp USA Inc.23,384$125K<0.01%13F-HRTimelineGroup
Significant Wealth Partners LLC23,131$124K0.15%+92913F-HRTimeline
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding23,261$122K+731Timeline
Mariner, LLCin group Mariner, LLC21,023$112K<0.01%+9,46313F-HRTimelineGroup
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC20,376$109K<0.01%+7,55013F-HRTimelineGroup
October Effect Ltd20,300$109K0.13%-2,80013F-HRTimeline
EP Wealth Advisors, LLC19,127$102K<0.01%-1,02813F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV18,879$101K<0.01%new13F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…17,900$95.8K<0.01%-1,00013F-HRTimeline
CITIGROUP INCin group CITIGROUP INC17,271$92.4K<0.01%+11,02913F-HRTimelineGroup
Kestra Advisory Services, LLCin group Kestra Advisory Services, LLC16,100$86.1K<0.01%013F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN15,038$80.5K<0.01%-30,11613F-HR/ATimelineGroup
BARCLAYS PLCin group BARCLAYS PLC14,316$76.6K<0.01%-63,00913F-HRTimelineGroup
Corient Private Wealth LPin group Corient Private Wealth LP14,064$75.2K<0.01%+4413F-HRTimelineGroup
COMMONWEALTH EQUITY SERVICES, LLC13,733$73.5K<0.01%-10113F-HRTimeline
IEQ CAPITAL, LLC13,534$72.4K<0.01%new13F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC13,385$70.7K<0.01%-28,62613F-HRTimelineGroup
GLOBEFLEX CAPITAL L P13,104$70.1K0.01%013F-HRTimeline
Onyx Bridge Wealth Group LLC13,000$69.5K0.01%013F-HRTimeline
Headlands Technologies LLC12,861$68.8K0.01%new13F-HRTimeline
CAPTRUST FINANCIAL ADVISORS12,803$68.5K<0.01%+1,21313F-HRTimeline
China Universal Asset Management Co., L…12,708$68K0.01%+1,03913F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC12,053$64.5K<0.01%-1,97413F-HRTimelineGroup
Metis Global Partners, LLC11,766$62.9K<0.01%-8,39813F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…11,757$62.9K<0.01%-10,09413F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …11,642$62.3K<0.01%-1,44113F-HRTimelineGroup
Police & Firemen's Retirement System of…11,414$61.1K<0.01%013F-HRTimeline
State of Alaska, Department of Revenue11,018$58K<0.01%013F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC10,788$57.7K<0.01%new13F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc10,697$57.2K<0.01%-34,16913F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS10,323$55.2K<0.01%-1313F-HRTimelineGroup
CWM, LLCin group CWM, LLC10,173$54.4K<0.01%+5,14613F-HRTimelineGroup
OneAscent Financial Services LLCin group OneAscent Financial Services …10,134$54.2K<0.01%new13F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.7,621$40.8K<0.01%-15613F-HRTimelineGroup
SIGNATUREFD, LLC4,850$25.9K<0.01%+1,72413F-HRTimeline
SIMPLEX TRADING, LLC4,483$24K<0.01%+2,01113F-HRTimeline
SBI Securities Co., Ltd.3,999$21.4K<0.01%+1,16213F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…3,774$20.2K<0.01%013F-HRTimelineGroup
QUADRANT CAPITAL GROUP LLC3,240$17.3K<0.01%-77113F-HR/ATimeline
GROUP ONE TRADING LLC3,180$17K<0.01%-41513F-HRTimeline
WealthCollab, LLC2,869$15.3K0.01%-7213F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…2,444$13.1K<0.01%-3,06013F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA2,246$12K<0.01%-2,75013F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…2,223$11.9K<0.01%-37,22213F-HRTimeline
Clearstead Advisors, LLC2,000$10.7K<0.01%-813F-HRTimeline
CURIO WEALTH, LLC2,000$10.7K<0.01%013F-HRTimeline
Private Wealth Asset Management, LLC1,700$9.1K<0.01%013F-HRTimeline
GF FUND MANAGEMENT CO. LTD.1,598$8.55K<0.01%+19213F-HRTimeline
Farther Finance Advisors, LLC1,535$7.94K<0.01%-2,61513F-HRTimeline
Aquatic Capital Management LLC1,387$7.42K<0.01%-75013F-HRTimeline
MAI Capital Management1,234$6.6K<0.01%+1,17413F-HRTimeline
Allworth Financial LP1,134$6.07K<0.01%+20713F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…955$5.11K<0.01%+80113F-HRTimelineGroup
HARBOR CAPITAL ADVISORS, INC.689$4K<0.01%+7513F-HRTimeline
NISA INVESTMENT ADVISORS, LLC635$3.4K<0.01%-21013F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…630$3.37K<0.01%+45613F-HRTimelineGroup
Sterling Capital Management LLC492$2.63K<0.01%-30513F-HRTimeline
ROTHSCHILD INVESTMENT LLC391$2.09K<0.01%+6313F-HRTimeline
GAMMA Investing LLC358$1.92K<0.01%+3913F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.322$1.72K<0.01%-12813F-HR/ATimelineGroup
Parallel Advisors, LLC303$1.62K<0.01%-7,66613F-HR/ATimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…202$1.08K<0.01%-11313F-HR/ATimelineGroup
Covestor Ltd201$1K<0.01%+1413F-HRTimeline
HARBOUR INVESTMENTS, INC.138$740<0.01%new13F-HRTimeline
SJS Investment Consulting Inc.127$680<0.01%+6113F-HRTimeline
Arax Advisory Partners122$653<0.01%-3513F-HRTimeline
Basecamp Wealth Advisors LLC119$637<0.01%new13F-HRTimeline
Versant Capital Management, Inc108$578<0.01%-1,13413F-HRTimeline
Essential Partners LLC104$556<0.01%-4913F-HRTimeline
Bell Investment Advisors, Inc75$402<0.01%new13F-HRTimeline
Root Financial Partners, LLC64$342<0.01%+5013F-HRTimeline
IFP Advisors, Inc61$326<0.01%-313F-HRTimeline
Larson Financial Group LLC47$251<0.01%013F-HRTimeline
Sound Income Strategies, LLC41$212<0.01%new13F-HRTimeline
Game Plan Financial Advisors, LLC35$187<0.01%013F-HRTimeline
Triumph Capital Management25$134<0.01%013F-HRTimeline
JPL Wealth Management, LLC23$124<0.01%new13F-HR/ATimeline
Ritter Daniher Financial Advisory LLC /…13$70<0.01%new13F-HRTimeline
Ascentis Independent Advisorsin group Ascentis Wealth Management, L…13$69<0.01%new13F-HRTimelineGroup
Smartleaf Asset Management LLC12$63<0.01%-8813F-HRTimeline
True Wealth Design, LLC2$11<0.01%-2913F-HRTimeline
Avion Wealth108$00%013F-HRTimelineValue filed as zero, left out of ratios.