ATNM · Actinium Pharmaceuticals, Inc.
$0.86
-0.03 (-2.94%)
At close · Jul 24
Market Cap
$26.98M
Shares
31.37M
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
The Jun 30, 2026 filing window is
still open — showing the latest known positions. Funds that have not filed yet
carry their prior-quarter positions; a fund that filed without this stock counts
as sold out.
Holders: 56
Total Value: $5,401,119
Total Shares: 5,428,749
Institutional Ownership Trend
26 quarters
Holder Concentration
Across 55 13F filersTop Holder
23.1%
of institutional value
Top 5
60.1%
of institutional value
Top 10
81.5%
of institutional value
HHI
1,014
Broadly held
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Mega VANGUARD CAPITAL MANAGEMENT LLC | $1,249,238 | 23.13% | 1,255,516 | Shares | Defined | 2026-05-15 | ||||
| Large ACADIAN ASSET MANAGEMENT LLC | $597,814 | 11.07% | 600,819 | Shares | Defined | 2026-05-13 | ||||
| Mega MILLENNIUM MANAGEMENT LLC | $561,777 | 10.40% | 564,600 | Shares | Sole | 2026-05-15 | ||||
| Large RENAISSANCE TECHNOLOGIES LLC | $469,242 | 8.69% | 471,600 | Shares | Sole | 2026-05-14 | ||||
| Mega BlackRock, Inc. | $369,353 | 6.84% | 371,210 | Shares | Sole | 2026-05-13 | ||||
| Mega TWO SIGMA INVESTMENTS, LP | $335,482 | 6.21% | 337,168 | Shares | Sole | 2026-05-15 | ||||
| Mega GEODE CAPITAL MANAGEMENT, LLC | $334,392 | 6.19% | 336,073 | Shares | Defined | 2026-05-15 | ||||
| Small GAGNON SECURITIES LLC Broker-Dealer | $200,293 | 3.71% | 201,300 | Shares | Sole | 2026-04-22 | ||||
| Mega VANGUARD FIDUCIARY TRUST CO Bank | $159,463 | 2.95% | 160,265 | Shares | Defined | 2026-05-08 | ||||
| Mega STATE STREET CORP | $125,583 | 2.33% | 126,215 | Shares | Defined | 2026-05-15 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $123,377 | 2.28% | 123,998 | Shares | Other | 2026-05-15 | ||||
| Small Gen-Wealth Partners Inc | $106,575 | 1.97% | 107,111 | Shares | Sole | 2026-05-08 | ||||
| Mega CITADEL ADVISORS LLC | $100,594 | 1.86% | 101,100 | Call | Defined | 2026-05-15 | ||||
| Mega NORTHERN TRUST CORP Bank | $75,475 | 1.40% | 75,855 | Shares | Defined | 2026-05-14 | ||||
| Mega GOLDMAN SACHS GROUP INC | $69,889 | 1.29% | 70,241 | Shares | Defined | 2026-05-15 | ||||
| Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC | $39,800 | 0.74% | 40,000 | Shares | Sole | 2026-05-15 | ||||
| Small TWO SIGMA SECURITIES, LLC Broker-Dealer | $35,707 | 0.66% | 35,887 | Shares | Sole | 2026-05-15 | ||||
| Mid NINE MASTS CAPITAL Ltd | $35,050 | 0.65% | 35,227 | Shares | Sole | 2026-05-13 | ||||
| Mega DIMENSIONAL FUND ADVISORS LP | $34,748 | 0.64% | 34,923 | Shares | Sole | 2026-05-07 | ||||
| Mega JANE STREET GROUP, LLC | $34,127 | 0.63% | 34,299 | Shares | Defined | 2026-05-12 | ||||
| Mid XTX Topco Ltd | $30,058 | 0.56% | 30,210 | Shares | Defined | 2026-05-15 | ||||
| Large Vontobel Holding Ltd. | $29,850 | 0.55% | 30,000 | Shares | Defined | 2026-05-08 | ||||
| Small AM INVESTMENT STRATEGIES LLC | $28,768 | 0.53% | 29,356 | Shares | Sole | 2026-07-16 | ||||
| Mega JANE STREET GROUP, LLC | $26,268 | 0.49% | 26,400 | Call | Defined | 2026-05-12 | ||||
| Small Gerald Baker Financial Group LLC | $22,577 | 0.42% | 22,691 | Shares | Sole | 2026-05-06 | ||||
| Micro MAYPORT, LLC | $21,890 | 0.41% | 22,000 | Shares | Sole | 2026-04-21 | ||||
| Mid NORTH STAR ASSET MANAGEMENT INC | $19,900 | 0.37% | 20,000 | Shares | Sole | 2026-05-06 | ||||
| Large OSAIC HOLDINGS, INC. | $19,764 | 0.37% | 19,865 | Shares | Defined | 2026-05-15 | ||||
| Mega WELLS FARGO & COMPANY/MN | $19,700 | 0.36% | 19,800 | Shares | Defined | 2026-05-11 | ||||
| Large Qube Research & Technologies Ltd | $17,957 | 0.33% | 18,048 | Shares | Sole | 2026-05-15 | ||||
| Mega UBS Group AG | $14,544 | 0.27% | 14,618 | Shares | Defined | 2026-05-05 | ||||
| Mega MORGAN STANLEY | $13,528 | 0.25% | 13,597 | Shares | Defined | 2026-05-15 | ||||
| Mid Virtu Financial LLC | $12,262 | 0.23% | 12,324 | Shares | Defined | 2026-05-14 | ||||
| Mid Callan Family Office, LLC Family Office | $11,884 | 0.22% | 11,944 | Shares | Sole | 2026-05-13 | ||||
| Micro Intrepid Financial Planning Group LLC | $10,447 | 0.19% | 10,500 | Shares | Sole | 2026-05-13 | ||||
| Mid LEVEL FOUR ADVISORY SERVICES, LLC | $9,950 | 0.18% | 10,000 | Shares | Sole | 2026-05-14 | ||||
| Mid Savvy Advisors, Inc. | $9,950 | 0.18% | 10,000 | Shares | Sole | 2026-05-11 | ||||
| Mega Vanguard Global Advisers, LLC | $8,848 | 0.16% | 8,893 | Shares | Defined | 2026-05-08 | ||||
| Large Rockefeller Capital Management L.P. | $3,980 | 0.07% | 4,000 | Shares | Defined | 2026-05-14 | ||||
| Large Steward Partners Investment Advisory, LLC | $2,155 | 0.04% | 2,166 | Shares | Sole | 2026-05-08 | ||||
| Mega JPMORGAN CHASE & CO | $1,486 | 0.03% | 1,494 | Shares | Defined | 2026-05-13 | ||||
| Mid Advisory Services Network, LLC | $1,452 | 0.03% | 1,460 | Shares | Sole | 2026-05-15 | ||||
| Large FEDERATED HERMES, INC. | $1,395 | 0.03% | 1,403 | Shares | Defined | 2026-05-11 | ||||
| Large NATIONAL BANK OF CANADA /FI/ Bank | $1,015 | 0.02% | 1,021 | Shares | Defined | 2026-05-15 | ||||
| Mega CITIGROUP INC | $674 | 0.01% | 678 | Shares | Defined | 2026-05-11 | ||||
| Mid SBI Securities Co., Ltd. Broker-Dealer | $482 | 0.01% | 492 | Shares | Defined | 2026-07-23 | ||||
| Large CWM, LLC | $349 | 0.01% | 351 | Shares | Sole | 2026-05-14 | ||||
| Large JONES FINANCIAL COMPANIES LLLP | $349 | 0.01% | 351 | Shares | Sole | 2026-05-15 | ||||
| Mid PITTENGER & ANDERSON INC | $339 | 0.01% | 341 | Shares | Sole | 2026-05-01 | ||||
| Large NISA INVESTMENT ADVISORS, LLC | $328 | 0.01% | 330 | Shares | Sole | 2026-04-30 | ||||
| Small Investors Research Corp | $294 | 0.01% | 300 | Shares | Sole | 2026-07-10 | ||||
| Mega BNP PARIBAS ARBITRAGE, SA | $235 | 0.00% | 237 | Shares | Defined | 2026-05-12 | ||||
| Micro Allied Private Wealth LLC | $235 | 0.00% | 240 | Shares | Sole | 2026-07-09 | ||||
| Large NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | $106 | 0.00% | 107 | Shares | Defined | 2026-05-07 | ||||
| Mega FMR LLC | $78 | 0.00% | 79 | Shares | Defined | 2026-05-15 | ||||
| Mega ROYAL BANK OF CANADA Bank | $43 | 0.00% | 45 | Shares | Defined | 2026-05-15 | ||||
| Small Caitong International Asset Management Co., Ltd | $0 | 0.00% | 1 | Shares | Sole | 2026-05-11 | ||||
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