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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. Button63.75%20,000,000$22.60MInsider
Sloan Kettering Cancer Center Memorial33.19%10,411,948$11.77MInsider
Vanguard Group Inc4.53%1,421,038$1.61MInstitution
Acadian Asset Management LLC1.93%606,339$685.16kInstitution
Millennium Management LLC1.92%601,600$679.81kInstitution
Renaissance Technologies LLC1.25%390,784$441.59kInstitution
Blackrock Inc1.17%366,931$414.63kInstitution
Geode Capital Management LLC1.05%328,994$371.76kInstitution
Two Sigma Investments LP0.67%209,692$236.95kInstitution
Gagnon Securities LLC0.64%201,807$228.04kInstitution

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ATNM vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ATNM14.92%85.08%Net Selling
APLM0.20%47.36%Net SellingNet Selling
BOLD39.19%23.80%
HOWL25.59%74.41%Net SellingNet Selling
PTN4.34%95.66%Net Buying
View Top Biotech Stocks

Actinium Pharmaceuticals Stock Ownership FAQ

Who owns Actinium Pharmaceuticals?

Actinium Pharmaceuticals (NYSEMKT: ATNM) is owned by 17.25% institutional shareholders, 98.37% Actinium Pharmaceuticals insiders, and 0.00% retail investors. Diane S. Button is the largest individual Actinium Pharmaceuticals shareholder, owning 20.00M shares representing 63.75% of the company. Diane S. Button's Actinium Pharmaceuticals shares are currently valued at $22.60M.

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