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Alnylam Pharmaceuticals

818 hedge funds and large institutions have $59.2B invested in Alnylam Pharmaceuticals in 2025 Q3 according to their latest regulatory filings, with 224 funds opening new positions, 280 increasing their positions, 222 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:

26% more funds holding

Funds holding: 650818 (+168)

2.26% less ownership

Funds ownership: 101.3%99.03% (-2.3%)

13% less call options, than puts

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

Holders
818
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
STA
376
Summit Trail Advisors
New York
$1.57M
SPAS
377
Spectrum Planning & Advisory Services
California
$1.53M
OAM
378
Oxford Asset Management
United Kingdom
$1.53M
KRSITF
379
Kentucky Retirement Systems Insurance Trust Fund
Kentucky
$1.5M
SAM
380
Sectoral Asset Management
Quebec, Canada
$1.49M
LJHT
381
Laurie J. Hall Trustee
$1.48M
GAM
382
Generali Asset Management
Italy
$1.47M
KCM
383
Kennedy Capital Management
Missouri
$1.47M
Cambridge Investment Research Advisors
384
Cambridge Investment Research Advisors
Iowa
$1.45M
SLI
385
Sumitomo Life Insurance
Japan
$1.44M
SMH
386
Sanders Morris Harris
Texas
$1.44M
OCM
387
Orion Capital Management
California
$1.43M
GD
388
Grandfield & Dodd
New York
$1.42M
GCM
389
Graham Capital Management
Connecticut
$1.37M
ECM
390
Everence Capital Management
Indiana
$1.35M
GIC
391
Generali Investments CEE
Czech Republic
$1.32M
SCM
392
Sterling Capital Management
North Carolina
$1.29M
GFM
393
GF Fund Management
China
$1.28M
Vontobel Holding
394
Vontobel Holding
Switzerland
$1.27M
SAM
395
Shell Asset Management
Netherlands
$1.27M
CL
396
Choreo LLC
Illinois
$1.26M
CFO
397
Callan Family Office
Pennsylvania
$1.26M
P
398
&Partners
Tennessee
$1.25M
SFP
399
Shepherd Financial Partners
Massachusetts
$1.25M
GT
400
Greenleaf Trust
Michigan
$1.25M