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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
MFG
351
Merit Financial Group
Georgia
$1.93M
ALMGDA
352
AG2R La Mondiale Gestion d'Actifs
France
$1.9M
PAMP
353
Polar Asset Management Partners
Ontario, Canada
$1.87M
SCM
354
Shaolin Capital Management
Florida
$1.87M
MCM
355
Moore Capital Management
New York
$1.87M
SAMU
356
SONA Asset Management (US)
New York
$1.87M
KeyBank National Association
357
KeyBank National Association
Ohio
$1.85M
KIA
358
Knollwood Investment Advisory
Maryland
$1.85M
Janney Montgomery Scott
359
Janney Montgomery Scott
Pennsylvania
$1.85M
CT
360
Clearstead Trust
Maine
$1.82M
BMSSC
361
B. Metzler seel. Sohn & Co
Germany
$1.78M
VFA
362
Values First Advisors
Tennessee
$1.77M
SRL
363
Scientech Research LLC
New Jersey
$1.77M
BM
364
Brandywine Managers
Delaware
$1.7M
KF
365
Krilogy Financial
Missouri
$1.66M
PA
366
Profund Advisors
Maryland
$1.61M
I
367
InceptionR
California
$1.6M
LIP
368
Lighthouse Investment Partners
Florida
$1.6M
BAMCO Inc
369
BAMCO Inc
New York
$1.6M
DZ Bank
370
DZ Bank
Germany
$1.6M
STA
371
Summit Trail Advisors
New York
$1.57M
SPAS
372
Spectrum Planning & Advisory Services
California
$1.53M
OAM
373
Oxford Asset Management
United Kingdom
$1.53M
KRSITF
374
Kentucky Retirement Systems Insurance Trust Fund
Kentucky
$1.5M
SAM
375
Sectoral Asset Management
Quebec, Canada
$1.49M