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Alnylam Pharmaceuticals

806 hedge funds and large institutions have $59B invested in Alnylam Pharmaceuticals in 2025 Q3 according to their latest regulatory filings, with 221 funds opening new positions, 274 increasing their positions, 221 reducing their positions, and 48 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 funds holding

Funds holding:

24% more repeat investments, than reductions

Existing positions increased: 274 | Existing positions reduced: 221

2.46% less ownership

Funds ownership: 101.24%98.78% (-2.5%)

13% less call options, than puts

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

Holders
806
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
KRSITF
376
Kentucky Retirement Systems Insurance Trust Fund
Kentucky
$1.5M
SAM
377
Sectoral Asset Management
Quebec, Canada
$1.49M
LJHT
378
Laurie J. Hall Trustee
$1.48M
GAM
379
Generali Asset Management
Italy
$1.47M
KCM
380
Kennedy Capital Management
Missouri
$1.47M
Cambridge Investment Research Advisors
381
Cambridge Investment Research Advisors
Iowa
$1.45M
SLI
382
Sumitomo Life Insurance
Japan
$1.44M
SMH
383
Sanders Morris Harris
Texas
$1.44M
OCM
384
Orion Capital Management
California
$1.43M
GD
385
Grandfield & Dodd
New York
$1.42M
GCM
386
Graham Capital Management
Connecticut
$1.37M
ECM
387
Everence Capital Management
Indiana
$1.35M
GIC
388
Generali Investments CEE
Czech Republic
$1.32M
SCM
389
Sterling Capital Management
North Carolina
$1.29M
GFM
390
GF Fund Management
China
$1.28M
Vontobel Holding
391
Vontobel Holding
Switzerland
$1.27M
SAM
392
Shell Asset Management
Netherlands
$1.27M
CL
393
Choreo LLC
Illinois
$1.26M
CFO
394
Callan Family Office
Pennsylvania
$1.26M
P
395
&Partners
Tennessee
$1.25M
SFP
396
Shepherd Financial Partners
Massachusetts
$1.25M
GT
397
Greenleaf Trust
Michigan
$1.25M
PAS
398
Park Avenue Securities
New York
$1.25M
WFC
399
Western Financial Corp
California
$1.24M
FC
400
FORA Capital
Florida
$1.24M