ALNY icon

Alnylam Pharmaceuticals

645 hedge funds and large institutions have $43B invested in Alnylam Pharmaceuticals in 2025 Q2 according to their latest regulatory filings, with 96 funds opening new positions, 257 increasing their positions, 214 reducing their positions, and 62 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more funds holding

Funds holding:

3.41% more ownership

Funds ownership: 97.81%101.22% (+3.4%)

8% less call options, than puts

Call options by funds: $188M | Put options by funds: $203M

10% less funds holding in top 10

Funds holding in top 10: 109 (-1)

Holders
645
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
9
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$188M
Puts
$203M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
KeyBank National Association
351
KeyBank National Association
Ohio
$899K
SFP
352
Shepherd Financial Partners
Massachusetts
$892K
GT
353
Greenleaf Trust
Michigan
$890K
Bank of Nova Scotia
354
Bank of Nova Scotia
Ontario, Canada
$874K
AAM
355
Azzad Asset Management
Virginia
$864K
PCA
356
Pallas Capital Advisors
Massachusetts
$838K
Mercer Global Advisors
357
Mercer Global Advisors
Colorado
$836K
OAM
358
Oxford Asset Management
United Kingdom
$805K
Squarepoint
359
Squarepoint
New York
$798K
Osaic Holdings
360
Osaic Holdings
Arizona
$798K
Kovitz Investment Group Partners
361
Kovitz Investment Group Partners
Illinois
$766K
NPT
362
Nixon Peabody Trust
Massachusetts
$762K
CIP
363
Convergence Investment Partners
Florida
$737K
UM
364
UniSuper Management
Australia
$717K
EFG
365
Everhart Financial Group
Ohio
$715K
SI
366
Sava Infond
Slovenia
$711K
BWMG
367
Bannerman Wealth Management Group
Texas
$706K
EI
368
Ethic Inc
New York
$703K
QCM
369
QRG Capital Management
Illinois
$697K
SLI
370
Sumitomo Life Insurance
Japan
$691K
NYLIM
371
New York Life Investment Management
New York
$686K
PAS
372
Park Avenue Securities
New York
$680K
ACS
373
Archford Capital Strategies
Illinois
$658K
SNBOSD
374
Security National Bank of So Dak
Iowa
$652K
LAM
375
LECAP Asset Management
United Kingdom
$647K