Who Owns ACTINIUM PHARMACEUTICALS INC (ATNM)? -- Institutional Holders (2026-06-30)
58 institutions reported holding $5.2M of ACTINIUM PHARMACEUTICALS INC (ATNM) in SEC 13F filings for 2026-06-30. Largest institutional holders: VANGUARD GROUP INC ($1.4M), COMPASS FINANCIAL MANAGEMENT LLC ($588,225), MILLENNIUM MANAGEMENT LLC ($504,288), ACADIAN ASSET MANAGEMENT LLC ($485,000), BlackRock, Inc. ($387,978). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | VANGUARD GROUP INC | $1.4M | 1.4M | Trimmed |
| 2 | COMPASS FINANCIAL MANAGEMENT LLC | $588,225 | 600,230 | New |
| 3 | MILLENNIUM MANAGEMENT LLC | $504,288 | 514,580 | Trimmed |
| 4 | ACADIAN ASSET MANAGEMENT LLC | $485,000 | 496,288 | Trimmed |
| 5 | BlackRock, Inc. | $387,978 | 395,896 | Added |
| 6 | RENAISSANCE TECHNOLOGIES LLC | $372,881 | 380,491 | Trimmed |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | $318,553 | 324,945 | Trimmed |
| 8 | TWO SIGMA INVESTMENTS, LP | $253,995 | 259,179 | Trimmed |
| 9 | GAGNON SECURITIES LLC | $178,499 | 182,142 | Trimmed |
| 10 | STATE STREET CORP | $119,771 | 122,215 | Trimmed |
| 11 | Gen-Wealth Partners Inc | $103,009 | 105,111 | Trimmed |
| 12 | NORTHERN TRUST CORP | $68,348 | 69,743 | Trimmed |
| 13 | Qube Research & Technologies Ltd | $56,656 | 57,812 | Added |
| 14 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $55,685 | 56,822 | Trimmed |
| 15 | Vontobel Holding Ltd. | $49,000 | 50,000 | Added |
| 16 | SNS Financial Group, LLC | $42,140 | 43,000 | New |
| 17 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $39,200 | 40,000 | Hold |
| 18 | AM INVESTMENT STRATEGIES LLC | $29,000 | 29,356 | Hold |
| 19 | Gerald Baker Financial Group LLC | $22,237 | 22,691 | Hold |
| 20 | MAYPORT, LLC | $21,560 | 22,000 | Hold |
| 21 | NORTH STAR ASSET MANAGEMENT INC | $19,600 | 20,000 | Hold |
| 22 | WELLS FARGO & COMPANY/MN | $19,404 | 19,800 | Hold |
| 23 | JANE STREET GROUP, LLC | $19,110 | 19,500 | Trimmed |
| 24 | OSAIC HOLDINGS, INC. | $18,487 | 18,865 | Trimmed |
| 25 | XTX Topco Ltd | $13,456 | 13,731 | Trimmed |
Source: SEC Form 13F filings · as of 2026-06-30