InvestorLens

ALKS — ALKERMES PLC

Public company

Sign in to save5 tracked investors reported this
For educational research only.InvestorLens analyzes public regulatory filings (SEC EDGAR, STOCK Act PTRs) that may be delayed by 45 days or more. Information shown is historical and is not financial, legal, or tax advice, nor a recommendation or solicitation to buy or sell any security. Always do your own research.

InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.

Sourced from SEC EDGAR public filings

Why are billionaires buying ALKS?

Built from public SEC filings and public economic data. Not a recommendation.

Confidence
67
Institutional Conviction
Mixed · 2 buying vs 1 selling last quarter
50
Macro Tailwind
Macro conditions are mixed for this sector
52
Why? — Evidence & Confidence ▾

Of 3 tracked investors who changed their ALKS position last quarter, 2 bought and 1 sold (67% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 52/100 in a Squeeze regime).

Supporting evidence
  • +2 tracked investors added or increased positions last quarter (Steve Cohen, Ken Griffin)
  • +5 tracked investors reported holding ALKS at their latest filing
Contradicting evidence — always shown
  • −1 tracked investor reduced or exited last quarter (1 reduced, 0 sold out)
  • −13F data is disclosed up to 45 days after quarter end — positions may have changed since
Know the limits
  • · 13F disclosure lag (up to 45 days)
  • · Tracked investors are a sample, not the whole market
  • · Sector regime fit is a historical average, not a guarantee

Every InvestorLens score shows its evidence — including what argues against it. Model conviction-v1 · generated 8/4/2026.

About ALKERMES PLC (ALKS)

ALKERMES PLC (ALKS) appears in the most recent 13F filings of 5 tracked institutional investors. The largest disclosed position is held by Ken Griffin (Citadel Advisors), valued at $82M. Across recent filings, tracked investors recorded 5 new positions, 2 increased, 1 reduced, and 0 exited. All data sourced from SEC 13F filings.

Smart Money Consensus™

Based on recent institutional activity in ALKS

88
/100
Strong Institutional Accumulation
Added / Increased7
Reduced1
Exited0
BearishBullish
Crowded Trade Score™

How many top investors track ALKS

33
/100
Emerging Interest
5investors

A small number of top investors own this.

UndiscoveredCrowded
151015+

ALKS Ownership Composition

How ALKERMES PLC is held across tracked investor types, based on reported 13F positions.

Dominant Type
Other
99% of tracked value
Institutions
5
tracked investors
Total Reported
$90.4M
combined 13F value
Sectors2
  • Other98.7%
  • Hedge Funds1.3%
Other(4)
98.7%
Hedge Funds(1)
1.3%

Tracked investors reporting ALKS

  • Ken GriffinMar 31, 2026
    Citadel Advisors
    Shares
    2.3M
    Value
    $82.4M
    % Portfolio
    0.01%
  • Ray DalioMar 31, 2026
    Bridgewater Associates
    Shares
    83.8K
    Value
    $3M
    % Portfolio
    0.01%
  • Paul Tudor JonesDec 31, 2025
    Tudor Investment Corp
    Shares
    82.7K
    Value
    $2.3M
    % Portfolio
    0.00%
  • Izzy EnglanderDec 31, 2025
    Millennium Management
    Shares
    54.6K
    Value
    $1.5M
    % Portfolio
    0.00%
  • Steve CohenMar 31, 2026
    Point72 Asset Management
    Shares
    33K
    Value
    $1.2M
    % Portfolio
    0.00%

Recent activity

Frequently asked questions

How many institutional investors hold ALKS?
5 tracked institutional investors disclosed a position in ALKS (ALKERMES PLC) in their most recent 13F filing.
Who is the largest institutional holder of ALKS?
Ken Griffin, Citadel Advisors, holds the largest disclosed position in ALKS, valued at $82M.
Did institutional ownership of ALKS increase or decrease?
Across recent 13F filings, tracked investors recorded 5 new positions, 2 increased, 1 reduced, and 0 fully exited ALKS.
Where does this ALKS ownership data come from?
SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.
ALKS (ALKERMES PLC) — Institutional Holders & 13F History — InvestorLens