ACTINIUM PHARMACEUTICALS INC (ATNM): Institutional Ownership
Hedge funds and institutional managers reporting a position in ATNM · Health Care. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
7
13F filers
Aggregate Value
$981K
Across holders
Last Price
$0.99
2026-06-26
Sector
Health Care
GICS
Holder activity3 new2 added2 reduced
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC CIK 0001037389 | Hedge Fund | 472K | $469K | 47.8% | 0.0% | Added | +$80K | Q1 2026 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 337K | $336K | 34.2% | 0.0% | Added | +$127K | Q1 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 101K | $101K | 10.3% | 0.0% | Reduced | $-14K | Q1 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 26K | $42K | 4.3% | 0.0% | New | — | Q3 2025 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 18K | $18K | 1.8% | 0.0% | Reduced | $-760 | Q1 2026 |
| Schonfeld Strategic Advisors LLC CIK 0001665241 | Hedge Fund | 11K | $15K | 1.5% | 0.0% | New | — | Q2 2025 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 389 | $622 | 0.1% | 0.0% | New | — | Q3 2025 |
Added
Hedge Fund
$469K· 47.8% of total· 0.0% port· 472K sh· +$80K QoQ· Q1 2026
Added
Hedge Fund
$336K· 34.2% of total· 0.0% port· 337K sh· +$127K QoQ· Q1 2026
Reduced
Hedge Fund
$101K· 10.3% of total· 0.0% port· 101K sh· $-14K QoQ· Q1 2026
New
Hedge Fund
$42K· 4.3% of total· 0.0% port· 26K sh· — QoQ· Q3 2025
Reduced
Hedge Fund
$18K· 1.8% of total· 0.0% port· 18K sh· $-760 QoQ· Q1 2026
New
Hedge Fund
$15K· 1.5% of total· 0.0% port· 11K sh· — QoQ· Q2 2025
New
Hedge Fund
$622· 0.1% of total· 0.0% port· 389 sh· — QoQ· Q3 2025