ALNY icon

Alnylam Pharmaceuticals

817 hedge funds and large institutions have $59.2B invested in Alnylam Pharmaceuticals in 2025 Q3 according to their latest regulatory filings, with 224 funds opening new positions, 279 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:

26% more repeat investments, than reductions

Existing positions increased: 279 | Existing positions reduced: 222

2.27% less ownership

Funds ownership: 101.28%99.02% (-2.3%)

13% less call options, than puts

Call options by funds: $562M | Put options by funds: $649M

Holders
817
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
JSAM
476
J. Safra Asset Management
New York
$636K
BPC
477
Banque Pictet & Cie
Switzerland
$632K
WBC
478
Westpac Banking Corp
Australia
$618K
CSS
479
Cubist Systematic Strategies
Connecticut
$616K
Winslow Capital Management
480
Winslow Capital Management
Minnesota
$609K
Envestnet Portfolio Solutions
481
Envestnet Portfolio Solutions
Illinois
$605K
AAIS
482
ABN AMRO Investment Solutions
$597K
CIP
483
Convergence Investment Partners
Florida
$596K
NSAM
484
North Star Asset Management
Wisconsin
$595K
QC
485
Quantedge Capital
Singapore
$593K
AF
486
Allworth Financial
California
$588K
SWP
487
Sagespring Wealth Partners
Tennessee
$587K
LNWWM
488
Laird Norton Wetherby Wealth Management
California
$577K
QCM
489
Qsemble Capital Management
New York
$572K
FRA
490
Frank Rimerman Advisors
California
$570K
CWM
491
Crowley Wealth Management
Delaware
$570K
DIG
492
DeepCurrents Investment Group
New York
$567K
VIM
493
Vinva Investment Management
Australia
$563K
SCM
494
Semanteon Capital Management
Massachusetts
$562K
HI
495
HBK Investments
Texas
$561K
Capstone Investment Advisors
496
Capstone Investment Advisors
New York
$561K
BCM
497
BlueCrest Capital Management
Jersey
$561K
CI
498
Cigna Investments
Connecticut
$561K
CGH
499
Crossmark Global Holdings
Texas
$558K
Calamos Advisors
500
Calamos Advisors
Illinois
$547K