SIGA TECHNOLOGIES INC

PublicCIK: 1010086
SIGANASDAQ
Location

NEW YORK, NY

13F Filings

Institutional Holders

SIGA TECHNOLOGIES INCSIGA— Latest position per institution from SEC 13F filings

15

Institutional holders

31.64M

Total shares held

140.39M

Estimated value

1.58M

Avg. position size

1

BLACKROCK, INC.

CIK 2012383

Shares

4.19M

Value

15.24M

Filed

Jun 30, 2026

2

BLACKROCK FINANCE, INC.

CIK 1364742

Shares

3.91M

Value

29.71M

Filed

Jun 30, 2024

3

VANGUARD GROUP INC

CIK 102909

Shares

2.72M

Value

16.64M

Filed

Dec 31, 2025

4

DIMENSIONAL FUND ADVISORS LP

CIK 354204

Shares

2.72M

Value

9.90M

Filed

Jun 30, 2026

5

ALTRAVUE CAPITAL, LLC

CIK 1740837

Shares

2.33M

Value

8.47M

Filed

Jun 30, 2026

6

VANGUARD CAPITAL MANAGEMENT LLC

CIK 2100119

Shares

1.71M

Value

6.23M

Filed

Jun 30, 2026

7

AMERICAN CENTURY COMPANIES INC

CIK 748054

Shares

1.51M

Value

5.48M

Filed

Jun 30, 2026

8

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

CIK 1164508

Shares

1.47M

Value

5.37M

Filed

Jun 30, 2026

9

GEODE CAPITAL MANAGEMENT, LLC

CIK 1214717

Shares

1.42M

Value

5.16M

Filed

Jun 30, 2026

10

FIRST WILSHIRE SECURITIES MANAGEMENT INC

CIK 732847

Shares

1.34M

Value

4.88M

Filed

Jun 30, 2026

11

AQR CAPITAL MANAGEMENT LLC

CIK 1167557

Shares

1.25M

Value

4.54M

Filed

Jun 30, 2026

12

STATE STREET CORP

CIK 93751

Shares

1.13M

Value

4.13M

Filed

Jun 30, 2026

13

JUPITER ASSET MANAGEMENT LTD

CIK 1215838

Shares

990.65K

Value

6.05M

Filed

Dec 31, 2025

14

VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V.

CIK 1367401

Shares

924.81K

Value

6.24M

Filed

Sep 30, 2024

15

HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC

CIK 1164833

Shares

914.05K

Value

3.33M

Filed

Jun 30, 2026

16

QUBE RESEARCH & TECHNOLOGIES LTD

CIK 1729829

Shares

740.91K

Value

2.70M

Filed

Jun 30, 2026

17

CSM ADVISORS, LLC

CIK 1863523

Shares

627.87K

Value

3.83K

Filed

Dec 31, 2025

18

NEW YORK STATE COMMON RETIREMENT FUND

CIK 810265

Shares

590.76K

Value

2.15M

Filed

Jun 30, 2026

19

MILLENNIUM MANAGEMENT LLC

CIK 1273087

Shares

579.60K

Value

2.11M

Filed

Jun 30, 2026

20

JACOBS LEVY EQUITY MANAGEMENT, INC

CIK 884414

Shares

566.86K

Value

2.06M

Filed

Jun 30, 2026

Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.