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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 filers
Top Holder
23.1%
Jun 2023 → Mar 2026 · range 22.7% – 29.6%
of institutional value
Top 5
60.1%
Jun 2023 → Mar 2026 · range 60.1% – 73.7%
of institutional value
Top 10
81.5%
Jun 2023 → Mar 2026 · range 75.6% – 87.0%
of institutional value
HHI
1,014
Jun 2023 → Mar 2026 · range 1,014 – 1,604
Broadly held
Showing 57 of 57
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1388320 CUSIP 00507W206 13F (30d) 4 filings 4 filers Visit website Investor relations