SIGA TECHNOLOGIES INC (SIGA): Ownership & Insider Activity
Hedge funds and institutional managers reporting a position in SIGA · Health Care. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
14
13F filers
Aggregate Value
$21.9M
Across holders
Last Price
$2.94
2026-08-24
Sector
Health Care
GICS
Quarterly fund activity7 increased7 reduced0 exited
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 0001164508 | Hedge Fund | 1.47M | $5.4M | 24.5% | 0.0% | Reduced | $-186K | Q2 2026 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 1.25M | $4.5M | 20.7% | 0.0% | Added | $-21.9M | Q2 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 741K | $2.7M | 12.3% | 0.0% | Added | +$1.2M | Q2 2026 |
| MILLENNIUM MANAGEMENT LLC CIK 0001273087 | Hedge Fund | 580K | $2.1M | 9.6% | 0.0% | Added | +$412K | Q2 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 551K | $2.0M | 9.2% | 0.0% | Reduced | +$73K | Q2 2026 |
| RENAISSANCE TECHNOLOGIES LLC CIK 0001037389 | Hedge Fund | 426K | $1.5M | 7.1% | 0.0% | Reduced | $-179K | Q2 2026 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 358K | $1.3M | 5.9% | 0.0% | Reduced | $-276K | Q2 2026 |
| SHAW D E & CO INC CIK 0001009207 | Hedge Fund | 265K | $964K | 4.4% | 0.0% | Reduced | $-1.7M | Q2 2026 |
| Man Group plc CIK 0001637460 | Hedge Fund | 157K | $573K | 2.6% | 0.0% | Added | +$229K | Q2 2026 |
| Schonfeld Strategic Advisors LLC CIK 0001665241 | Hedge Fund | 68K | $246K | 1.1% | 0.0% | Added | +$153K | Q2 2026 |
Reduced
Hedge Fund
$5.4M· 24.5% of total· 0.0% port· 1.47M sh· $-186K QoQ· Q2 2026
Added
Hedge Fund
$4.5M· 20.7% of total· 0.0% port· 1.25M sh· $-21.9M QoQ· Q2 2026
Added
Hedge Fund
$2.7M· 12.3% of total· 0.0% port· 741K sh· +$1.2M QoQ· Q2 2026
Added
Hedge Fund
$2.1M· 9.6% of total· 0.0% port· 580K sh· +$412K QoQ· Q2 2026
Reduced
Hedge Fund
$2.0M· 9.2% of total· 0.0% port· 551K sh· +$73K QoQ· Q2 2026
Reduced
Hedge Fund
$1.5M· 7.1% of total· 0.0% port· 426K sh· $-179K QoQ· Q2 2026
Reduced
Hedge Fund
$1.3M· 5.9% of total· 0.0% port· 358K sh· $-276K QoQ· Q2 2026
Reduced
Hedge Fund
$964K· 4.4% of total· 0.0% port· 265K sh· $-1.7M QoQ· Q2 2026
Added
Hedge Fund
$573K· 2.6% of total· 0.0% port· 157K sh· +$229K QoQ· Q2 2026
Added
Hedge Fund
$246K· 1.1% of total· 0.0% port· 68K sh· +$153K QoQ· Q2 2026
Added
Hedge Fund
$212K· 1.0% of total· 0.0% port· 58K sh· +$75K QoQ· Q2 2026
Reduced
Hedge Fund
$186K· 0.8% of total· 0.0% port· 51K sh· $-27K QoQ· Q2 2026
Added
Hedge Fund
$136K· 0.6% of total· 0.0% port· 37K sh· — QoQ· Q2 2026
Reduced
Hedge Fund
$633· 0.0% of total· 0.0% port· 174 sh· $-1K QoQ· Q2 2026
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