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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
EF
351
Empowered Funds
Pennsylvania
$1.95M
HCM
352
Howland Capital Management
Massachusetts
$1.93M
MFG
353
Merit Financial Group
Georgia
$1.93M
ALMGDA
354
AG2R La Mondiale Gestion d'Actifs
France
$1.9M
PAMP
355
Polar Asset Management Partners
Ontario, Canada
$1.87M
SCM
356
Shaolin Capital Management
Florida
$1.87M
MCM
357
Moore Capital Management
New York
$1.87M
SAMU
358
SONA Asset Management (US)
New York
$1.87M
KeyBank National Association
359
KeyBank National Association
Ohio
$1.85M
KIA
360
Knollwood Investment Advisory
Maryland
$1.85M
Janney Montgomery Scott
361
Janney Montgomery Scott
Pennsylvania
$1.85M
CT
362
Clearstead Trust
Maine
$1.82M
BMSSC
363
B. Metzler seel. Sohn & Co
Germany
$1.78M
VFA
364
Values First Advisors
Tennessee
$1.77M
SRL
365
Scientech Research LLC
New Jersey
$1.77M
BM
366
Brandywine Managers
Delaware
$1.7M
KF
367
Krilogy Financial
Missouri
$1.66M
PA
368
Profund Advisors
Maryland
$1.61M
I
369
InceptionR
California
$1.6M
LIP
370
Lighthouse Investment Partners
Florida
$1.6M
BAMCO Inc
371
BAMCO Inc
New York
$1.6M
DZ Bank
372
DZ Bank
Germany
$1.6M
STA
373
Summit Trail Advisors
New York
$1.57M
SPAS
374
Spectrum Planning & Advisory Services
California
$1.53M
OAM
375
Oxford Asset Management
United Kingdom
$1.53M