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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, 277 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 funds holding

Funds holding:

25% more repeat investments, than reductions

Existing positions increased: 277 | Existing positions reduced: 222

2.48% 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
SFM
351
Soros Fund Management
New York
$1.96M
EF
352
Empowered Funds
Pennsylvania
$1.95M
HCM
353
Howland Capital Management
Massachusetts
$1.93M
MFG
354
Merit Financial Group
Georgia
$1.93M
ALMGDA
355
AG2R La Mondiale Gestion d'Actifs
France
$1.9M
PAMP
356
Polar Asset Management Partners
Ontario, Canada
$1.87M
SCM
357
Shaolin Capital Management
Florida
$1.87M
MCM
358
Moore Capital Management
New York
$1.87M
SAMU
359
SONA Asset Management (US)
New York
$1.87M
KeyBank National Association
360
KeyBank National Association
Ohio
$1.85M
KIA
361
Knollwood Investment Advisory
Maryland
$1.85M
Janney Montgomery Scott
362
Janney Montgomery Scott
Pennsylvania
$1.85M
CT
363
Clearstead Trust
Maine
$1.82M
BMSSC
364
B. Metzler seel. Sohn & Co
Germany
$1.78M
VFA
365
Values First Advisors
Tennessee
$1.77M
SRL
366
Scientech Research LLC
New Jersey
$1.77M
BM
367
Brandywine Managers
Delaware
$1.7M
KF
368
Krilogy Financial
Missouri
$1.66M
PA
369
Profund Advisors
Maryland
$1.61M
I
370
InceptionR
California
$1.6M
LIP
371
Lighthouse Investment Partners
Florida
$1.6M
BAMCO Inc
372
BAMCO Inc
New York
$1.6M
DZ Bank
373
DZ Bank
Germany
$1.6M
STA
374
Summit Trail Advisors
New York
$1.57M
SPAS
375
Spectrum Planning & Advisory Services
California
$1.53M