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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, 278 increasing their positions, 221 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 repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

25% more funds holding

Funds holding: 649812 (+163)

2.47% 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
OAM
351
Oppenheimer Asset Management
New York
$1.96M
SFM
352
Soros Fund Management
New York
$1.96M
EF
353
Empowered Funds
Pennsylvania
$1.95M
HCM
354
Howland Capital Management
Massachusetts
$1.93M
MFG
355
Merit Financial Group
Georgia
$1.93M
ALMGDA
356
AG2R La Mondiale Gestion d'Actifs
France
$1.9M
PAMP
357
Polar Asset Management Partners
Ontario, Canada
$1.87M
SCM
358
Shaolin Capital Management
Florida
$1.87M
MCM
359
Moore Capital Management
New York
$1.87M
SAMU
360
SONA Asset Management (US)
New York
$1.87M
KeyBank National Association
361
KeyBank National Association
Ohio
$1.85M
KIA
362
Knollwood Investment Advisory
Maryland
$1.85M
Janney Montgomery Scott
363
Janney Montgomery Scott
Pennsylvania
$1.85M
CT
364
Clearstead Trust
Maine
$1.82M
BMSSC
365
B. Metzler seel. Sohn & Co
Germany
$1.78M
VFA
366
Values First Advisors
Tennessee
$1.77M
SRL
367
Scientech Research LLC
New Jersey
$1.77M
BM
368
Brandywine Managers
Delaware
$1.7M
KF
369
Krilogy Financial
Missouri
$1.66M
PA
370
Profund Advisors
Maryland
$1.61M
I
371
InceptionR
California
$1.6M
LIP
372
Lighthouse Investment Partners
Florida
$1.6M
BAMCO Inc
373
BAMCO Inc
New York
$1.6M
DZ Bank
374
DZ Bank
Germany
$1.6M
STA
375
Summit Trail Advisors
New York
$1.57M