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ALKERMES PLC. (ALKS) Ownership Summary
Institutional Holders
Total Number of Holders 384
% of Shares Outstanding 109.81%
Total Shares Held 180,828,278
Total Value of Holdings $5,001,710,169.48
Net Activity 4,141,075
 
Top 5 Holders Shares Held Shares Changed
BLACKROCK INC. 29,107,548 (60,933)
VANGUARD GROUP INC 19,999,872 (161,308)
WELLINGTON MANAGEMENT GROUP LLP 14,354,752 (537,608)
PRICE T ROWE ASSOCIATES INC /MD/ 11,012,312 2,686,056
STATE STREET CORP 9,215,058 211,145

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Insider Trades
 Last 3 mos.Last 12 mos.
Number of Insider Trades03
Number of Buys00
Number of Sells03
Net Activity 0 (15,666)
 
Top 5 TradesShares Traded Date
GAFFIN DAVID JOSEPH8958/3/2024
GAFFIN DAVID JOSEPH2,0148/3/2024
ALVA EMILY PETERSON1,4656/29/2024
ALVA EMILY PETERSON6,1046/29/2024
COOKE SHANE3,1756/29/2024

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5% Ownership (SC 13D & SC 13G Filings)
View Form   Filer  Received  Period 
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View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13G/A   VANGUARD GROUP INC  02/13/24   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13G   WELLINGTON MANAGEMENT GROUP LLP  02/08/24   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13G   STATE STREET CORP  01/24/24   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in Original Format  SC 13G/A   BLACKROCK INC.  01/08/24   File this document to a folder.
View Filing in HTMLView Filing in RTFView Filing in PDFView Filing in ExcelView Filing in Original Format  SC 13D/A   SARISSA CAPITAL MANAGEMENT LP  08/24/23   File this document to a folder.