InvestorLens

ALNY — ALNYLAM PHARMACEUTICALS INC

Public company

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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

About ALNYLAM PHARMACEUTICALS INC (ALNY)

ALNYLAM PHARMACEUTICALS INC (ALNY) appears in the most recent 13F filings of 4 tracked institutional investors. The largest disclosed position is held by Izzy Englander (Millennium Management), valued at $163M. Across recent filings, tracked investors recorded 6 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 ALNY

89
/100
Strong Institutional Accumulation
Added / Increased8
Reduced1
Exited0
BearishBullish
Crowded Trade Score™

How many top investors track ALNY

27
/100
Emerging Interest
4investors

A small number of top investors own this.

UndiscoveredCrowded
151015+

ALNY Ownership Composition

How ALNYLAM PHARMACEUTICALS INC is held across tracked investor types, based on reported 13F positions.

Dominant Type
Other
99% of tracked value
Institutions
4
tracked investors
Total Reported
$237.3M
combined 13F value
Sectors2
  • Other99.1%
  • Hedge Funds0.9%
Other(3)
99.1%
Hedge Funds(1)
0.9%

Tracked investors reporting ALNY

  • Izzy EnglanderMar 31, 2026
    Millennium Management
    Shares
    493.1K
    Value
    $163.1M
    % Portfolio
    0.07%
  • Ken GriffinMar 31, 2026
    Citadel Advisors
    Shares
    111.2K
    Value
    $36.8M
    % Portfolio
    0.01%
  • Ray DalioMar 31, 2026
    Bridgewater Associates
    Shares
    106.6K
    Value
    $35.3M
    % Portfolio
    0.16%
  • Steve CohenMar 31, 2026
    Point72 Asset Management
    Shares
    6.3K
    Value
    $2.1M
    % Portfolio
    0.00%

Recent activity

Frequently asked questions

How many institutional investors hold ALNY?
4 tracked institutional investors disclosed a position in ALNY (ALNYLAM PHARMACEUTICALS INC) in their most recent 13F filing.
Who is the largest institutional holder of ALNY?
Izzy Englander, Millennium Management, holds the largest disclosed position in ALNY, valued at $163M.
Did institutional ownership of ALNY increase or decrease?
Across recent 13F filings, tracked investors recorded 6 new positions, 2 increased, 1 reduced, and 0 fully exited ALNY.
Where does this ALNY 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.