SIGA · Siga Technologies Inc · Holdings

$3.35 +0.09 (+2.76%) At close · Oct 8

Russell 2000 member Rebalance outlook locked

Market Cap

$234.23M

71.85M

Volume · Oct 8 676.29K Avg daily vol (3M) 724.38K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP →

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.

The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.

Quarter:

Holders: 162

Total Value: $127,084,172

Total Shares: 34,913,453

Showing 1–100 of 164 holdings by value · page 1 of 2

Institutional Ownership Trend

27 quarters

Holder Concentration

Across 162 13F filers

Top Holder

12.0%

of institutional value

Top 5

35.7%

of institutional value

Top 10

54.6%

of institutional value

HHI

414

Broadly held

Showing 100 of 164

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

BlackRock, Inc.

$15,238,063

11.99%

4,186,282

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BLACKROCK FINANCIAL MANAGEMENT INC/DE	331,901	$1,208,119	7.9%	Sole
BlackRock Asset Management Canada Ltd	450	$1,638	0.0%	Sole
BlackRock Investment Management, LLC	121,496	$442,245	2.9%	Sole
BLACKROCK ADVISORS LLC	84,697	$308,297	2.0%	Sole
BlackRock Fund Advisors	1,864,542	$6,786,932	44.5%	Sole
BlackRock Institutional Trust Company, N.A.	1,313,611	$4,781,544	31.4%	Sole
BlackRock Asset Management Ireland Ltd	52,031	$189,392	1.2%	Sole
Aperio Group, LLC	417,554	$1,519,896	10.0%	Sole

DIMENSIONAL FUND ADVISORS LP

$9,899,226

7.79%

2,719,568

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Dimensional Fund Advisors Ltd.	7,933	$28,876	0.3%	Defined
DFA Australia Ltd.	3,320	$12,084	0.1%	Defined
Dimensional Ireland Ltd	140,854	$512,708	5.2%	Defined
Held directly	2,567,461	$9,345,558	94.4%	Sole

AltraVue Capital, LLC

$8,470,803

6.67%

2,327,144

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Legato Capital Management LLC	512,039	$1,863,821	22.0%	Other
Held directly	1,815,105	$6,606,982	78.0%	Sole

VANGUARD CAPITAL MANAGEMENT LLC

$6,234,231

4.91%

1,712,701

AMERICAN CENTURY COMPANIES INC

$5,482,076

4.31%

1,506,065

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
AMERICAN CENTURY INVESTMENT MANAGEMENT INC	1,506,065	$5,482,076	100.0%	Defined

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

$5,368,333

4.22%

1,474,817

GEODE CAPITAL MANAGEMENT, LLC

$5,158,213

4.06%

1,417,092

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	158,028	$575,221	11.2%	Defined
Held directly	1,259,064	$4,582,992	88.8%	Defined

FIRST WILSHIRE SECURITIES MANAGEMENT INC

$4,877,174

3.84%

1,339,883

AQR CAPITAL MANAGEMENT LLC

$4,535,408

3.57%

1,245,992

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RF&L WEALTH MANAGEMENT, LLC	2	$7	0.0%	Other
Compound Planning, Inc.	66	$240	0.0%	Other
Arax Advisory Partners	1,692	$6,158	0.1%	Other
HALBERT HARGROVE GLOBAL ADVISORS, LLC	1,232	$4,484	0.1%	Other
Stokes Family Office, LLC	258	$939	0.0%	Other
Held directly	1,242,742	$4,523,580	99.7%	Defined

STATE STREET CORP

$4,127,719

3.25%

1,133,989

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STATE STREET GLOBAL ADVISORS EUROPE LIMITED joint	1,133,989	$4,127,719	100.0%	Defined

HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC

$3,327,131

2.62%

914,047

Qube Research & Technologies Ltd

$2,696,912

2.12%

740,910

NEW YORK STATE COMMON RETIREMENT FUND

$2,150,370

1.69%

590,761

MILLENNIUM MANAGEMENT LLC

$2,109,740

1.66%

579,599

JACOBS LEVY EQUITY MANAGEMENT, INC

$2,063,381

1.62%

566,863

Uniplan Investment Counsel, Inc.

$2,039,684

1.60%

560,353

CITADEL ADVISORS LLC

$2,006,535

1.58%

551,246

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	199,247	$725,259	36.1%	Defined
Held directly	351,999	$1,281,276	63.9%	Defined

ROYCE & ASSOCIATES LP

$2,005,676

1.58%

551,010

VANGUARD PORTFOLIO MANAGEMENT LLC

$2,000,897

1.57%

549,697

Legato Capital Management LLC

$1,863,821

1.47%

512,039

LSV ASSET MANAGEMENT

$1,679,157

1.32%

461,307

BANK OF AMERICA CORP /DE/

$1,555,280

1.22%

427,275

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BANK OF AMERICA NA	219,607	$799,369	51.4%	Defined
BOFA SECURITIES, INC.	207,668	$755,911	48.6%	Defined

RENAISSANCE TECHNOLOGIES LLC

$1,549,912

1.22%

425,800

MORGAN STANLEY

$1,532,469

1.21%

421,009

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	3,012	$10,963	0.7%	Defined
MORGAN STANLEY & CO. LLC	15,625	$56,875	3.7%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	166,821	$607,228	39.6%	Defined
MORGAN STANLEY SMITH BARNEY LLC	1,216	$4,425	0.3%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	234,335	$852,978	55.7%	Defined

DENALI ADVISORS LLC

$1,508,547

1.19%

414,436

GOLDMAN SACHS GROUP INC

$1,430,545

1.13%

393,007

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	174,561	$635,402	44.4%	Defined
GOLDMAN SACHS ASSET MANAGEMENT, L.P.	218,446	$795,143	55.6%	Defined

TWO SIGMA INVESTMENTS, LP

$1,302,082

1.02%

357,715

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

$1,273,344

1.00%

349,820

NORTHERN TRUST CORP

$1,215,151

0.96%

333,833

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	327,025	$1,190,370	98.0%	Defined
DWS INVESTMENT MANAGEMENT AMERICAS, INC joint	6,808	$24,781	2.0%	Other

VANGUARD FIDUCIARY TRUST CO

$1,009,583

0.79%

277,358

Creative Planning

$1,002,921

0.79%

275,528

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
CREATIVE PLANNING TRUST Co LLC	6,370	$23,186	2.3%	Defined
Held directly	269,158	$979,735	97.7%	Sole

SEGALL BRYANT & HAMILL, LLC

$995,620

0.78%

273,522

Bank of New York Mellon Corp

$967,089

0.76%

265,684

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Investments Corporation	190,697	$694,137	71.8%	Defined
The Bank of New York Mellon	74,985	$272,945	28.2%	Defined
Held directly	2	$7	0.0%	Defined

D. E. Shaw & Co., Inc.

$964,236

0.76%

264,900

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
D. E. SHAW & CO, L.P.	229,300	$834,652	86.6%	Defined
D. E. Shaw Investment Management, L.L.C. joint	35,600	$129,584	13.4%	Defined

VICTORY CAPITAL MANAGEMENT INC

$946,625

0.74%

260,062

AMERIPRISE FINANCIAL INC

$703,858

0.55%

193,368

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Columbia Management Investment Advisers, LLC	192,398	$700,328	99.5%	Defined
Ameriprise Financial Services, LLC	970	$3,530	0.5%	Defined

UBS Group AG

$662,472

0.52%

181,998

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Financial Services Inc	3,373	$12,277	1.9%	Defined
UBS AG	178,625	$650,195	98.1%	Defined

STATE OF WISCONSIN INVESTMENT BOARD

$598,416

0.47%

164,400

FIRST TRUST ADVISORS LP

$580,612

0.46%

159,509

Man Group plc

$572,746

0.45%

157,348

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Numeric Investors LLC	157,348	$572,746	100.0%	Defined

LOS ANGELES CAPITAL MANAGEMENT LLC

$528,018

0.42%

145,060

STRS OHIO

$488,488

0.38%

134,200

Campbell & CO Investment Adviser LLC

$441,084

0.35%

121,177

Invesco Ltd.

$411,650

0.32%

113,091

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Invesco Advisers, Inc. joint	5,137	$18,698	4.5%	Defined
Invesco Trust Co joint	16,880	$61,443	14.9%	Defined
Invesco Capital Management LLC	91,074	$331,509	80.5%	Defined

PRUDENTIAL FINANCIAL INC

$379,251

0.30%

104,190

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
PGIM Quantitative Solutions LLC	104,190	$379,251	100.0%	Defined

SummerHaven Investment Management, LLC

$367,731

0.29%

101,025

Nuveen, LLC

$367,271

0.29%

100,899

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Nuveen Asset Management, LLC joint	1,578	$5,743	1.6%	Defined
TEACHERS ADVISORS, LLC joint	99,321	$361,528	98.4%	Defined

MARTINGALE ASSET MANAGEMENT L P

$336,121

0.26%

92,341

KLP KAPITALFORVALTNING AS

$317,408

0.25%

87,200

PRICE T ROWE ASSOCIATES INC /MD/

$304,897

0.24%

83,763

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
T. Rowe Price International Ltd	83,763	$304,897	100.0%	Defined

Vanguard Global Advisers, LLC

$302,152

0.24%

83,009

WINTON GROUP Ltd

$275,355

0.22%

75,647

WEALTH ENHANCEMENT ADVISORY SERVICES, LLC

$269,924

0.21%

74,155

ALLIANCEBERNSTEIN L.P.

$260,296

0.20%

71,510

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Equitable Holdings, Inc.	71,510	$260,296	100.0%	Defined

Empirical Financial Services, LLC d.b.a. Empirical Wealth Management

$257,609

0.20%

70,772

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Brooklyn Investment Group joint	1,948	$7,090	2.8%	Other
Held directly	68,824	$250,519	97.2%	Sole

Connor, Clark & Lunn Investment Management Ltd.

$253,737

0.20%

69,708

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Manager 1	69,708	$253,737	100.0%	Sole

CANADA PENSION PLAN INVESTMENT BOARD

$252,616

0.20%

69,400

Inspire Advisors, LLC

$250,391

0.20%

68,789

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Inspire Investing, LLC	68,789	$250,391	100.0%	Defined

Schonfeld Strategic Advisors LLC

$245,994

0.19%

67,581

Cambria Investment Management, L.P.

$236,720

0.19%

65,033

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Tidal Investments LLC	65,033	$236,720	100.0%	Other

EXCHANGE TRADED CONCEPTS, LLC

$229,844

0.18%

63,144

XTX Topco Ltd

$228,111

0.18%

62,668

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	62,668	$228,111	100.0%	Defined

Jefferies Financial Group Inc.

$228,107

0.18%

62,667

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jefferies Financial Services, Inc.	62,667	$228,107	100.0%	Defined

EntryPoint Capital, LLC

$219,670

0.17%

60,349

FMR LLC

$214,242

0.17%

58,858

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Fidelity Management & Research Co LLC	58,854	$214,228	100.0%	Defined
STRATEGIC ADVISERS LLC	4	$14	0.0%	Defined

Point72 Asset Management, L.P.

$211,891

0.17%

58,212

Atom Investors LP

$209,168

0.16%

57,464

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$194,062

0.15%

53,314

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	53,314	$194,062	100.0%	Other

Squarepoint Ops LLC

$185,785

0.15%

51,040

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Squarepoint Capital LLP	51,040	$185,785	100.0%	Defined

RHUMBLINE ADVISERS

$183,503

0.14%

50,413

Strategic Blueprint, LLC

$182,236

0.14%

50,065

DAVENPORT & Co LLC

$182,000

0.14%

50,000

Abel Hall, LLC

$165,849

0.13%

45,563

Russell Investments Group, Ltd.

$160,357

0.13%

44,055

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Russell Investment Management, LLC joint	23,346	$84,978	53.0%	Other
Russell Investments Capital, LLC joint	3,331	$12,124	7.6%	Other
Russell Investments France SAS	7,679	$27,951	17.4%	Defined
Russell Investments Trust Company joint	9,699	$35,304	22.0%	Other

Empowered Funds, LLC

$158,758

0.12%

43,615

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Sequoia Financial Group, LLC	43,615	$158,758	100.0%	Other

Cresset Asset Management, LLC

$148,111

0.12%

40,690

VIKING FUND MANAGEMENT LLC

$145,600

0.11%

40,000

PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO

$141,232

0.11%

38,800

DEUTSCHE BANK AG\

$137,846

0.11%

37,870

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
DWS Investments UK Ltd	37,870	$137,846	100.0%	Defined

TUDOR INVESTMENT CORP ET AL

$135,542

0.11%

37,237

WELLS FARGO & COMPANY/MN

$128,852

0.10%

35,399

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO BANK N A	35,399	$128,852	100.0%	Defined

Quantinno Capital Management LP

$118,816

0.09%

32,642

SEI INVESTMENTS CO

$103,811

0.08%

28,520

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SEI INVESTMENTS MANAGEMENT CORP	42	$152	0.1%	Sole
SEI TRUST CO	28,478	$103,659	99.9%	Sole

CITIGROUP INC

$103,415

0.08%

28,411

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	28,411	$103,415	100.0%	Defined

GUGGENHEIM CAPITAL LLC

$98,043

0.08%

26,935

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SECURITY INVESTORS LLC	26,935	$98,043	100.0%	Defined

JPMORGAN CHASE & CO

$97,270

0.08%

26,723

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
J.P. Morgan Trust Co of Delaware	546	$1,987	2.0%	Other
JPMorgan Chase Bank, N.A.	17,524	$63,787	65.6%	Defined
J.P. Morgan Investment Management Inc.	2,480	$9,027	9.3%	Defined
J.P. Morgan Securities plc	6,173	$22,469	23.1%	Defined

WASHINGTON GROWTH STRATEGIES LLC

$95,426

0.08%

26,216

CIM INVESTMENT MANAGEMENT INC

$95,186

0.07%

26,150

IEQ CAPITAL, LLC

$94,640

0.07%

26,000

Significant Wealth Partners LLC

$91,698

0.07%

25,192

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$90,272

0.07%

24,800

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	24,800	$90,272	100.0%	Other

CIBC Bancorp USA Inc.

$86,085

0.07%

23,650

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
CIBC National Trust Co	21,316	$77,590	90.1%	Defined
CIBC WORLD MARKETS CORP	2,334	$8,495	9.9%	Defined

Cerity Partners LLC

$83,850

0.07%

23,036

Aquatic Capital Management LLC

$82,868

0.07%

22,766

MetLife Investment Management, LLC

$79,643

0.06%

21,880

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
METLIFE INC	21,880	$79,643	100.0%	Defined

MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.

$70,848

0.06%

19,464

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Global X Management CO LLC joint	19,464	$70,848	100.0%	Defined

MERCER GLOBAL ADVISORS INC /ADV

$69,778

0.05%

19,170

October Effect Ltd

$69,160

0.05%

19,000

Mariner, LLC

$67,423

0.05%

18,523

OneAscent Financial Services LLC

$66,240

0.05%

18,198

Key facts CIK 1010086 CUSIP 826917106 13F (30d) 6 filings 6 filers Visit website Investor relations