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Alnylam Pharmaceuticals

812 hedge funds and large institutions have $59B invested in Alnylam Pharmaceuticals in 2025 Q3 according to their latest regulatory filings, with 222 funds opening new positions, 278 increasing their positions, 221 reducing their positions, and 49 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

25% more funds holding

Funds holding: 649812 (+163)

2.47% less ownership

Funds ownership: 101.29%98.81% (-2.5%)

13% less call options, than puts

Call options by funds: $562M | Put options by funds: $649M

Holders
812
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
13
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$562M
Puts
$649M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
SPAS
376
Spectrum Planning & Advisory Services
California
$1.53M
OAM
377
Oxford Asset Management
United Kingdom
$1.53M
KRSITF
378
Kentucky Retirement Systems Insurance Trust Fund
Kentucky
$1.5M
SAM
379
Sectoral Asset Management
Quebec, Canada
$1.49M
LJHT
380
Laurie J. Hall Trustee
$1.48M
GAM
381
Generali Asset Management
Italy
$1.47M
KCM
382
Kennedy Capital Management
Missouri
$1.47M
Cambridge Investment Research Advisors
383
Cambridge Investment Research Advisors
Iowa
$1.45M
SLI
384
Sumitomo Life Insurance
Japan
$1.44M
SMH
385
Sanders Morris Harris
Texas
$1.44M
OCM
386
Orion Capital Management
California
$1.43M
GD
387
Grandfield & Dodd
New York
$1.42M
GCM
388
Graham Capital Management
Connecticut
$1.37M
ECM
389
Everence Capital Management
Indiana
$1.35M
GIC
390
Generali Investments CEE
Czech Republic
$1.32M
SCM
391
Sterling Capital Management
North Carolina
$1.29M
GFM
392
GF Fund Management
China
$1.28M
Vontobel Holding
393
Vontobel Holding
Switzerland
$1.27M
SAM
394
Shell Asset Management
Netherlands
$1.27M
CL
395
Choreo LLC
Illinois
$1.26M
CFO
396
Callan Family Office
Pennsylvania
$1.26M
P
397
&Partners
Tennessee
$1.25M
SFP
398
Shepherd Financial Partners
Massachusetts
$1.25M
GT
399
Greenleaf Trust
Michigan
$1.25M
PAS
400
Park Avenue Securities
New York
$1.25M