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Alnylam Pharmaceuticals

806 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, 274 increasing their positions, 221 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: 274 | Existing positions reduced: 221

2.46% less ownership

Funds ownership: 101.24%98.78% (-2.5%)

13% less call options, than puts

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

Holders
806
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
WBC
476
Westpac Banking Corp
Australia
$618K
CSS
477
Cubist Systematic Strategies
Connecticut
$616K
Winslow Capital Management
478
Winslow Capital Management
Minnesota
$609K
Envestnet Portfolio Solutions
479
Envestnet Portfolio Solutions
Illinois
$605K
AAIS
480
ABN AMRO Investment Solutions
$597K
CIP
481
Convergence Investment Partners
Florida
$596K
NSAM
482
North Star Asset Management
Wisconsin
$595K
QC
483
Quantedge Capital
Singapore
$593K
AF
484
Allworth Financial
California
$588K
SWP
485
Sagespring Wealth Partners
Tennessee
$587K
LNWWM
486
Laird Norton Wetherby Wealth Management
California
$577K
QCM
487
Qsemble Capital Management
New York
$572K
FRA
488
Frank Rimerman Advisors
California
$570K
CWM
489
Crowley Wealth Management
Delaware
$570K
DIG
490
DeepCurrents Investment Group
New York
$567K
VIM
491
Vinva Investment Management
Australia
$563K
SCM
492
Semanteon Capital Management
Massachusetts
$562K
HI
493
HBK Investments
Texas
$561K
BCM
494
BlueCrest Capital Management
Jersey
$561K
Capstone Investment Advisors
495
Capstone Investment Advisors
New York
$561K
CI
496
Cigna Investments
Connecticut
$561K
CGH
497
Crossmark Global Holdings
Texas
$558K
Calamos Advisors
498
Calamos Advisors
Illinois
$547K
HH
499
Hilltop Holdings
Texas
$542K
PWM
500
Perigon Wealth Management
California
$539K