Alkermes plc (ALKS) Insider Trading

Over the last 3 months, ALKS insiders made 0 open-market buys and 7 sales, a net sale of -$1.9M (SEC Form 4). Over the last 6 months, 293 institutions increased and 279 reduced their position (13F).

Insider Activity

Sentiment
0/100
Buys (3m)
0
Sells (3m)
7
Net (3m)
-$1.9M
Insider trades by month Buys Sells
Jan
Feb
Mar
Apr
May
Jun
Context3-month price +53%Institutions mixed (13F)
DateInsiderTypeSharesPrice
Jun 4, 2026Gaffin David Josephofficer: EVP, CLO, Alkermes, Inc.Sell2,034$43.05
Jun 1, 2026Hopkinson Craig C.officer: EVP R&D, Chief Medical OfficerOption5,000$19.34
Jun 1, 2026Hopkinson Craig C.officer: EVP R&D, Chief Medical OfficerSell9,000$41.67
May 29, 2026Parisi Samuel Josephofficer: VP, Finance (Interim PAO)Option3,392$20.03
May 29, 2026Parisi Samuel Josephofficer: VP, Finance (Interim PAO)Sell16,217$42.36
May 29, 2026Parisi Samuel Josephofficer: VP, Finance (Interim PAO)Option12,825$19.34
May 22, 2026Wright Christopher IdirectorTax1,475$36.95
May 22, 2026MCKEON BRIAN PdirectorTax1,475$36.95
May 22, 2026Cooke ShanedirectorTax3,207$36.95
May 22, 2026Wright Christopher IdirectorGrant11,538$36.98
May 22, 2026MCKEON BRIAN PdirectorGrant5,409
May 22, 2026GAYNOR RICHARDdirectorTax1,475$36.95
May 22, 2026LAURENCIN CATO TdirectorGrant5,409
May 22, 2026Wilson Frank AndersdirectorTax1,475$36.95
May 22, 2026Wilson Frank AndersdirectorOption6,142
May 22, 2026snyderman nancy lynn MDdirectorOption6,142
May 22, 2026snyderman nancy lynn MDdirectorGrant11,538$36.98
May 22, 2026LAURENCIN CATO TdirectorTax1,475$36.95
May 22, 2026Lurker NancydirectorGrant11,538$36.98
May 22, 2026Lurker NancydirectorOption6,142
May 22, 2026Wilson Frank AndersdirectorGrant11,538$36.98
May 22, 2026Cooke ShanedirectorGrant5,409
May 22, 2026Wright Christopher IdirectorGrant5,409
May 22, 2026Lurker NancydirectorGrant5,409
May 22, 2026GAYNOR RICHARDdirectorOption6,142
May 22, 2026LAURENCIN CATO TdirectorOption6,142
May 22, 2026LAURENCIN CATO TdirectorGrant11,538$36.98
May 22, 2026Wilson Frank AndersdirectorGrant5,409
May 22, 2026snyderman nancy lynn MDdirectorTax1,475$36.95
May 22, 2026MCKEON BRIAN PdirectorGrant11,538$36.98

Source: ALKS SEC Form 4 filings, latest Jun 4, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their ALKS positions over the last 6 months (SEC Form 13F).

Increased
293
New positions
114
Reduced
279
Sold out
90
Largest moves
InstitutionActionSharesFiled
BLACKROCK, INC.Increased28.3MMay 13, 2026
BLACKROCK, INC.Increased28.3MFeb 12, 2026
VANGUARD GROUP INCReduced18.0MJan 29, 2026
BAKER BROS. ADVISORS LPIncreased10.0MFeb 17, 2026
BAKER BROS. ADVISORS LPUnchanged10.0MMay 15, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCNew Position9.5MMay 8, 2026
STATE STREET CORPIncreased9.5MFeb 13, 2026
STATE STREET CORPReduced9.5MMay 15, 2026
PRICE T ROWE ASSOCIATES INC /MD/Reduced9.0MFeb 17, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position7.4MMay 15, 2026
RENAISSANCE TECHNOLOGIES LLCIncreased6.7MFeb 12, 2026
RENAISSANCE TECHNOLOGIES LLCReduced6.2MMay 14, 2026
AMERICAN CENTURY COMPANIES INCIncreased6.1MMay 15, 2026
AMERICAN CENTURY COMPANIES INCIncreased6.0MFeb 13, 2026
JPMORGAN CHASE & COIncreased5.2MFeb 11, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.