NEW YORK, NY
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
BLACKROCK, INC.
CIK 2012383
Shares
4.19M
Value
15.24M
Filed
Jun 30, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
3.91M
Value
29.71M
Filed
Jun 30, 2024
VANGUARD GROUP INC
CIK 102909
Shares
2.72M
Value
16.64M
Filed
Dec 31, 2025
DIMENSIONAL FUND ADVISORS LP
CIK 354204
Shares
2.72M
Value
9.90M
Filed
Jun 30, 2026
ALTRAVUE CAPITAL, LLC
CIK 1740837
Shares
2.33M
Value
8.47M
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
1.71M
Value
6.23M
Filed
Jun 30, 2026
AMERICAN CENTURY COMPANIES INC
CIK 748054
Shares
1.51M
Value
5.48M
Filed
Jun 30, 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 1164508
Shares
1.47M
Value
5.37M
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
1.42M
Value
5.16M
Filed
Jun 30, 2026
FIRST WILSHIRE SECURITIES MANAGEMENT INC
CIK 732847
Shares
1.34M
Value
4.88M
Filed
Jun 30, 2026
AQR CAPITAL MANAGEMENT LLC
CIK 1167557
Shares
1.25M
Value
4.54M
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
1.13M
Value
4.13M
Filed
Jun 30, 2026
JUPITER ASSET MANAGEMENT LTD
CIK 1215838
Shares
990.65K
Value
6.05M
Filed
Dec 31, 2025
VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V.
CIK 1367401
Shares
924.81K
Value
6.24M
Filed
Sep 30, 2024
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC
CIK 1164833
Shares
914.05K
Value
3.33M
Filed
Jun 30, 2026
QUBE RESEARCH & TECHNOLOGIES LTD
CIK 1729829
Shares
740.91K
Value
2.70M
Filed
Jun 30, 2026
CSM ADVISORS, LLC
CIK 1863523
Shares
627.87K
Value
3.83K
Filed
Dec 31, 2025
NEW YORK STATE COMMON RETIREMENT FUND
CIK 810265
Shares
590.76K
Value
2.15M
Filed
Jun 30, 2026
MILLENNIUM MANAGEMENT LLC
CIK 1273087
Shares
579.60K
Value
2.11M
Filed
Jun 30, 2026
JACOBS LEVY EQUITY MANAGEMENT, INC
CIK 884414
Shares
566.86K
Value
2.06M
Filed
Jun 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | BLACKROCK, INC. | 2012383 | 4.19M | 15.24M | Jun 30, 2026 |
| 2 | BLACKROCK FINANCE, INC. | 1364742 | 3.91M | 29.71M | Jun 30, 2024 |
| 3 | VANGUARD GROUP INC | 102909 | 2.72M | 16.64M | Dec 31, 2025 |
| 4 | DIMENSIONAL FUND ADVISORS LP | 354204 | 2.72M | 9.90M | Jun 30, 2026 |
| 5 | ALTRAVUE CAPITAL, LLC | 1740837 | 2.33M | 8.47M | Jun 30, 2026 |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 1.71M | 6.23M | Jun 30, 2026 |
| 7 | AMERICAN CENTURY COMPANIES INC | 748054 | 1.51M | 5.48M | Jun 30, 2026 |
| 8 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1164508 | 1.47M | 5.37M | Jun 30, 2026 |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 1.42M | 5.16M | Jun 30, 2026 |
| 10 | FIRST WILSHIRE SECURITIES MANAGEMENT INC | 732847 | 1.34M | 4.88M | Jun 30, 2026 |
| 11 | AQR CAPITAL MANAGEMENT LLC | 1167557 | 1.25M | 4.54M | Jun 30, 2026 |
| 12 | STATE STREET CORP | 93751 | 1.13M | 4.13M | Jun 30, 2026 |
| 13 | JUPITER ASSET MANAGEMENT LTD | 1215838 | 990.65K | 6.05M | Dec 31, 2025 |
| 14 | VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. | 1367401 | 924.81K | 6.24M | Sep 30, 2024 |
| 15 | HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | 1164833 | 914.05K | 3.33M | Jun 30, 2026 |
| 16 | QUBE RESEARCH & TECHNOLOGIES LTD | 1729829 | 740.91K | 2.70M | Jun 30, 2026 |
| 17 | CSM ADVISORS, LLC | 1863523 | 627.87K | 3.83K | Dec 31, 2025 |
| 18 | NEW YORK STATE COMMON RETIREMENT FUND | 810265 | 590.76K | 2.15M | Jun 30, 2026 |
| 19 | MILLENNIUM MANAGEMENT LLC | 1273087 | 579.60K | 2.11M | Jun 30, 2026 |
| 20 | JACOBS LEVY EQUITY MANAGEMENT, INC | 884414 | 566.86K | 2.06M | Jun 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.