ALKS Insider Trading Activity

Transactions disclosed by company insiders to the SEC on Form 4, most recent first.

InsiderRoleDateSharesValue
Nichols Christian Todd SVP, Chief Commercial Officer 2026-08-17 6,912 $339,967
Nichols Christian Todd SVP, Chief Commercial Officer 2026-08-17 664 $32,969
Gaffin David Joseph EVP, CLO, Alkermes, Inc. 2026-08-03 2,034 $98,812
Hopkinson Craig C. EVP R&D, Chief Medical Officer 2026-08-03 104 $2,011
Hopkinson Craig C. EVP R&D, Chief Medical Officer 2026-08-03 4,896 $120,393
Hopkinson Craig C. EVP R&D, Chief Medical Officer 2026-08-03 9,000 $437,220
snyderman nancy lynn MD Director 2026-08-03 27,948 $1,305,731
snyderman nancy lynn MD Director 2026-08-03 16,524 $772,001
snyderman nancy lynn MD Director 2026-08-03 44,472 $2,239,076

How Institutional Funds Moved on ALKS

Position changes disclosed in SEC Form 13F filings. These report a quarterly snapshot, not exact trade dates.

FundChangeQuarter
RENAISSANCE TECHNOLOGIES LLC RENAISSANCE TECHNOLOGIES LLC increased this position by 55% ($217,832,734 -> $338,520,325). 2026-06-30
NORGES BANK NORGES BANK opened a new position worth $113,006,270. 2026-06-30
ADAGE CAPITAL PARTNERS GP, L.L.C. ADAGE CAPITAL PARTNERS GP, L.L.C. opened a new position worth $71,676,360. 2026-06-30
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC opened a new position worth $49,787,510. 2026-06-30
Sixth Street Partners Management Company, L.P. Sixth Street Partners Management Company, L.P. opened a new position worth $122,348,496. 2026-06-30
FRONTIER CAPITAL MANAGEMENT CO LLC FRONTIER CAPITAL MANAGEMENT CO LLC opened a new position worth $34,557,740. 2026-06-30
DIMENSIONAL FUND ADVISORS LP DIMENSIONAL FUND ADVISORS LP increased this position by 78% ($112,311,888 -> $199,537,094). 2026-06-30
GEODE CAPITAL MANAGEMENT, LLC GEODE CAPITAL MANAGEMENT, LLC increased this position by 59% ($127,441,020 -> $202,217,880). 2026-06-30

Which Funds Hold ALKS

Largest reported positions as of 2026-06-30.

FundValueShares
BAKER BROS. ADVISORS LP $524,592,729 10,012,267
VANGUARD PORTFOLIO MANAGEMENT LLC $497,271,409 9,490,818
VANGUARD CAPITAL MANAGEMENT LLC $393,749,735 7,515,025
RENAISSANCE TECHNOLOGIES LLC $338,520,325 6,460,928
Deep Track Capital, LP $209,580,000 4,000,000
AMERICAN CENTURY COMPANIES INC $207,182,449 3,954,239
GEODE CAPITAL MANAGEMENT, LLC $202,217,880 3,858,675
DIMENSIONAL FUND ADVISORS LP $199,537,094 3,808,323
Holocene Advisors, LP $188,699,125 3,601,472
Commodore Capital LP $157,185,000 3,000,000

Data compiled from public SEC filings. This is informational reporting, not investment advice.

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