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NYSEMKT: ATNM
Actinium Pharmaceuticals Inc Stock Ownership - Who owns Actinium Pharmaceuticals?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Actinium Pharmaceuticals Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Sandesh SethChief Executive Officer2025-08-18120,900$1.71
$206.74kSell

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Net Insider Buy/Sell (L12M) Ownership

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ATNM Shareholders

What type of owners hold Actinium Pharmaceuticals Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Diane S. Button64.11%20,000,000$22.20MInsider
Sloan Kettering Cancer Center Memorial33.38%10,411,948$11.56MInsider
Vanguard Group Inc4.56%1,421,038$1.58MInstitution
Acadian Asset Management LLC1.94%606,339$673.04kInstitution
Millennium Management LLC1.93%601,600$667.78kInstitution
Renaissance Technologies LLC1.25%390,784$433.77kInstitution
Blackrock Inc1.18%366,931$407.29kInstitution
Geode Capital Management LLC1.05%328,994$365.18kInstitution
Two Sigma Investments LP0.67%209,692$232.76kInstitution
Gagnon Securities LLC0.65%201,807$224.01kInstitution

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ATNM vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ATNM14.92%85.08%Net Selling
CELU2.23%97.77%Net Selling
INMB19.12%27.83%
DMRA6.48%93.52%Net SellingNet Selling
RNTX22.93%77.07%Net Buying
View Top Biotech Stocks

Actinium Pharmaceuticals Stock Ownership FAQ

Who owns Actinium Pharmaceuticals?

Actinium Pharmaceuticals (NYSEMKT: ATNM) is owned by 17.34% institutional shareholders, 98.94% Actinium Pharmaceuticals insiders, and 0.00% retail investors. Diane S. Button is the largest individual Actinium Pharmaceuticals shareholder, owning 20.00M shares representing 64.11% of the company. Diane S. Button's Actinium Pharmaceuticals shares are currently valued at $22.20M.

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