NASDAQ: ALKS
Alkermes PLC Stock Ownership - Who owns Alkermes?

Insider buying vs selling

Have Alkermes PLC insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
David Joseph GaffinEVP CLO Alkermes Inc.2026-07-062,034$54.03
$109.90kSell
Craig C. HopkinsonEVP RD Chief Medical Officer2026-07-018,300$51.46
$427.13kSell
Craig C. HopkinsonEVP RD Chief Medical Officer2026-07-015,000$19.34
$96.70kBuy
Craig C. HopkinsonEVP RD Chief Medical Officer2026-07-01700$52.13
$36.49kSell
Christopher I. WrightDirector2026-06-122,000$45.10
$90.20kSell
David Joseph GaffinEVP CLO Alkermes Inc.2026-06-042,034$43.05
$87.56kSell
Craig C. HopkinsonEVP RD Chief Medical Officer2026-06-015,000$19.34
$96.70kBuy
Craig C. HopkinsonEVP RD Chief Medical Officer2026-06-019,000$41.67
$375.05kSell
Samuel Joseph ParisiVP Finance Interim PAO2026-05-2916,217$42.36
$687.00kSell
Samuel Joseph ParisiVP Finance Interim PAO2026-05-2912,825$19.34
$248.04kBuy

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Net Insider Buy/Sell (L12M) Ownership

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ALKS Shareholders

What type of owners hold Alkermes PLC stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Blackrock Inc16.99%28,314,410$1.50BInstitution
Baker Bros Advisors LP6.01%10,012,267$529.55MInstitution
Vanguard Portfolio Management LLC5.71%9,511,112$503.04MInstitution
State Street Corp5.68%9,465,286$500.62MInstitution
Elan Corp PLC4.65%7,750,000$409.90MInsider
Vanguard Capital Management LLC4.46%7,427,397$392.84MInstitution
Renaissance Technologies LLC3.70%6,160,428$325.83MInstitution
American Century Companies Inc3.64%6,072,103$321.15MInstitution
Price T Rowe Associates Inc2.80%4,664,576$246.71MInstitution
Dimensional Fund Advisors LP2.71%4,522,378$239.19MInstitution

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ALKS vs Pharmaceutical Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
ALKS93.37%6.63%Net SellingNet Selling
RDY14.43%26.65%
LNTH51.87%48.13%Net SellingNet Selling
AMRX29.90%70.10%Net SellingNet Selling
ELAN91.24%8.76%Net SellingNet Selling

Alkermes Stock Ownership FAQ

Who owns Alkermes?

Alkermes (NASDAQ: ALKS) is owned by 105.74% institutional shareholders, 7.51% Alkermes insiders, and 0.00% retail investors. Elan Corp PLC is the largest individual Alkermes shareholder, owning 7.75M shares representing 4.65% of the company. Elan Corp PLC's Alkermes shares are currently valued at $408.66M.

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