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ALKERMES PLC (ALKS) Stock Ownership and Short Interest

USA - Nasdaq - NASDAQ:ALKS - IE00B56GVS15 - Common Stock

29.36 USD
+0.58 (+2.02%)
Last: 1/7/2026, 8:15:43 PM
29.36 USD
0 (0%)
After Hours: 1/7/2026, 8:15:43 PM
ALKS Ownership Chart.ALKS Ownership Chart: showing Insider, Institutional ownership and shares available to the public.ALKS Ownership.InsiderInstitutional



Shares Outstanding165.12M
Float161.97M
Float Short Interest Percentage12.37%
Owners (insider)1.48%
Owners (institutional)105.82%
Owners (insider) change-0.47%
Owners (institutional) change0%
ALKS Institutional Ownership HistoryALKS Institutional Ownership HistoryALKS Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 50M 100M 150M
ALKS Historical Insider Transactions ChartALKS Historical Insider Buy and Sell Transactions ChartALKS Historical Insider Transactions Feb 2025 Mar 2025 Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 Dec 2025 Jan 2026 0 200K -200K 400K 600K
Date Name Type Shares Price Amount
Jan 2, 2026 Hopkinson Craig C. Open Market Sale 4000 28.00 $ 112,000.00
Dec 3, 2025 Hopkinson Craig C. Option Excercise 3748 19.34 $ 72,486.32
Dec 3, 2025 Hopkinson Craig C. Open Market Sale 3748 30.00 $ 112,447.12
Dec 1, 2025 Hopkinson Craig C. Open Market Sale 4000 29.30 $ 117,200.00
Nov 3, 2025 Hopkinson Craig C. Option Excercise 5000 19.34 $ 96,700.00
Nov 3, 2025 Hopkinson Craig C. Open Market Sale 9000 30.38 $ 273,441.60
Oct 15, 2025 Hopkinson Craig C. Option Excercise 5000 19.34 $ 96,700.00
Oct 15, 2025 Hopkinson Craig C. Open Market Sale 9000 31.53 $ 283,776.30
Aug 3, 2025 Gaffin David Joseph Option Excercise 2014 $ 0.00
Aug 3, 2025 Gaffin David Joseph Option Excercise 895 26.55 $ 23,762.25
May 31, 2025 Lurker Nancy Option Excercise 8013 $ 0.00
May 31, 2025 Lurker Nancy Option Excercise 1924 30.61 $ 58,893.64
May 31, 2025 LAURENCIN CATO T Option Excercise 8013 $ 0.00
May 31, 2025 LAURENCIN CATO T Option Excercise 1924 30.61 $ 58,893.64
May 31, 2025 GAYNOR RICHARD Option Excercise 8013 $ 0.00
May 31, 2025 GAYNOR RICHARD Option Excercise 1924 30.61 $ 58,893.64
May 31, 2025 Cooke Shane Option Excercise 8013 $ 0.00
May 31, 2025 Cooke Shane Option Excercise 4175 30.61 $ 127,796.75
May 31, 2025 Wright Christopher I Option Excercise 8013 $ 0.00
May 31, 2025 Wright Christopher I Option Excercise 1924 30.61 $ 58,893.64
May 31, 2025 Wilson Frank Anders Option Excercise 8013 $ 0.00
May 31, 2025 Wilson Frank Anders Option Excercise 1924 30.61 $ 58,893.64
May 31, 2025 snyderman nancy lynn MD Option Excercise 8013 $ 0.00
May 31, 2025 snyderman nancy lynn MD Option Excercise 1924 30.61 $ 58,893.64
May 31, 2025 MCKEON BRIAN P Option Excercise 8013 $ 0.00
May 31, 2025 MCKEON BRIAN P Option Excercise 1924 30.61 $ 58,893.64
Apr 11, 2025 Lurker Nancy Option Excercise 6075 $ 0.00
Apr 11, 2025 Lurker Nancy Option Excercise 1459 27.00 $ 39,393.00
Feb 28, 2025 Parisi Samuel Joseph Open Market Sale 1938 34.00 $ 65,892.00
Feb 26, 2025 Parisi Samuel Joseph Option Excercise 2746 $ 0.00
Feb 26, 2025 Parisi Samuel Joseph Option Excercise 808 34.80 $ 28,114.36
Feb 26, 2025 Nichols Christian Todd Option Excercise 5409 $ 0.00
Feb 26, 2025 Nichols Christian Todd Option Excercise 2402 34.80 $ 83,577.59
Feb 26, 2025 Jackson Blair Curtis Option Excercise 8322 $ 0.00
Feb 26, 2025 Jackson Blair Curtis Option Excercise 3695 34.80 $ 128,567.53
Feb 26, 2025 Hopkinson Craig C. Option Excercise 6866 $ 0.00
Feb 26, 2025 Hopkinson Craig C. Option Excercise 3049 34.80 $ 106,089.96
Feb 26, 2025 Gaffin David Joseph Option Excercise 6866 $ 0.00
Feb 26, 2025 Gaffin David Joseph Option Excercise 3049 34.80 $ 106,089.96
Feb 26, 2025 Brown Iain Michael Option Excercise 5617 $ 0.00
Feb 26, 2025 Brown Iain Michael Option Excercise 2494 34.80 $ 86,778.73
Feb 25, 2025 Parisi Samuel Joseph Open Market Sale 3743 35.26 $ 131,978.18
Feb 22, 2025 Gaffin David Joseph Option Excercise 15121 $ 0.00
Feb 22, 2025 Gaffin David Joseph Option Excercise 6714 35.32 $ 237,138.48
Feb 22, 2025 Jackson Blair Curtis Option Excercise 18432 $ 0.00
Feb 22, 2025 Jackson Blair Curtis Option Excercise 8185 35.32 $ 289,094.20
Feb 22, 2025 Parisi Samuel Joseph Option Excercise 5398 $ 0.00
Feb 22, 2025 Parisi Samuel Joseph Option Excercise 1655 35.32 $ 58,454.60
Feb 22, 2025 Brown Iain Michael Option Excercise 12934 $ 0.00
Feb 22, 2025 Brown Iain Michael Option Excercise 5741 35.32 $ 202,772.12
Feb 22, 2025 Nichols Christian Todd Option Excercise 13517 $ 0.00
Feb 22, 2025 Nichols Christian Todd Option Excercise 6003 35.32 $ 212,025.96
Feb 22, 2025 Hopkinson Craig C. Option Excercise 19968 $ 0.00
Feb 22, 2025 Hopkinson Craig C. Option Excercise 8866 35.32 $ 313,147.12
Feb 20, 2025 Parisi Samuel Joseph Open Market Sale 1327 35.69 $ 47,360.63
Feb 18, 2025 Parisi Samuel Joseph Option Excercise 2033 $ 0.00
Feb 18, 2025 Parisi Samuel Joseph Option Excercise 706 35.90 $ 25,345.40
Feb 18, 2025 Nichols Christian Todd Option Excercise 6354 $ 0.00
Feb 18, 2025 Nichols Christian Todd Option Excercise 1869 35.90 $ 67,097.10
Feb 18, 2025 Gaffin David Joseph Option Excercise 6354 $ 0.00
Feb 18, 2025 Gaffin David Joseph Option Excercise 2822 35.90 $ 101,309.80
Feb 18, 2025 Brown Iain Michael Option Excercise 6354 $ 0.00
Feb 18, 2025 Brown Iain Michael Option Excercise 1869 35.90 $ 67,097.10
Feb 18, 2025 Jackson Blair Curtis Option Excercise 8896 $ 0.00
Feb 18, 2025 Jackson Blair Curtis Option Excercise 3950 35.90 $ 141,805.00
Feb 18, 2025 Hopkinson Craig C. Option Excercise 8896 $ 0.00
Feb 18, 2025 Hopkinson Craig C. Option Excercise 3950 35.90 $ 141,805.00
Feb 12, 2025 Hopkinson Craig C. Option Excercise 343615 24.05 $ 8,262,968.61
Feb 12, 2025 Hopkinson Craig C. Open Market Sale 349340 33.92 $ 11,848,975.19
Feb 6, 2025 POPS RICHARD F Option Excercise 79925 31.39 $ 2,508,845.75
Feb 6, 2025 Nichols Christian Todd Grant 24565 $ 0.00
Feb 6, 2025 Nichols Christian Todd Option Excercise 7399 31.39 $ 232,254.61
Feb 6, 2025 Jackson Blair Curtis Grant 34393 $ 0.00
Feb 6, 2025 Jackson Blair Curtis Option Excercise 10647 31.39 $ 334,209.33
Feb 6, 2025 Hopkinson Craig C. Grant 34393 $ 0.00
Feb 6, 2025 Hopkinson Craig C. Option Excercise 15083 31.39 $ 473,455.37
Feb 6, 2025 Gaffin David Joseph Grant 32350 $ 0.00
Feb 6, 2025 Gaffin David Joseph Option Excercise 9752 31.39 $ 306,115.28
Feb 6, 2025 Brown Iain Michael Grant 24565 $ 0.00
Feb 6, 2025 Brown Iain Michael Option Excercise 7514 31.39 $ 235,864.46
Feb 6, 2025 POPS RICHARD F Grant 190640 $ 0.00
Jan 30, 2025 Hopkinson Craig C. Option Excercise 97632 22.22 $ 2,169,136.62
Jan 30, 2025 Hopkinson Craig C. Open Market Sale 100918 32.05 $ 3,234,381.53