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Alnylam Pharmaceuticals

802 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, 272 increasing their positions, 219 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: 272 | Existing positions reduced: 219

2.48% less ownership

Funds ownership: 101.22%98.74% (-2.5%)

13% less call options, than puts

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

Holders
802
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
LJHT
376
Laurie J. Hall Trustee
$1.48M
GAM
377
Generali Asset Management
Italy
$1.47M
KCM
378
Kennedy Capital Management
Missouri
$1.47M
Cambridge Investment Research Advisors
379
Cambridge Investment Research Advisors
Iowa
$1.45M
SLI
380
Sumitomo Life Insurance
Japan
$1.44M
SMH
381
Sanders Morris Harris
Texas
$1.44M
OCM
382
Orion Capital Management
California
$1.43M
GD
383
Grandfield & Dodd
New York
$1.42M
GCM
384
Graham Capital Management
Connecticut
$1.37M
ECM
385
Everence Capital Management
Indiana
$1.35M
GIC
386
Generali Investments CEE
Czech Republic
$1.32M
SCM
387
Sterling Capital Management
North Carolina
$1.29M
GFM
388
GF Fund Management
China
$1.28M
Vontobel Holding
389
Vontobel Holding
Switzerland
$1.27M
SAM
390
Shell Asset Management
Netherlands
$1.27M
CL
391
Choreo LLC
Illinois
$1.26M
CFO
392
Callan Family Office
Pennsylvania
$1.26M
P
393
&Partners
Tennessee
$1.25M
SFP
394
Shepherd Financial Partners
Massachusetts
$1.25M
GT
395
Greenleaf Trust
Michigan
$1.25M
PAS
396
Park Avenue Securities
New York
$1.25M
WFC
397
Western Financial Corp
California
$1.24M
FC
398
FORA Capital
Florida
$1.24M
RIA
399
Regal Investment Advisors
Michigan
$1.23M
CPBTD
400
Central Pacific Bank - Trust Division
Hawaii
$1.2M