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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
BCM
151
Bronte Capital Management
Australia
$17.8M
Ohio Public Employees Retirement System (OPERS)
152
Ohio Public Employees Retirement System (OPERS)
Ohio
$17.8M
ASRS
153
Arizona State Retirement System
Arizona
$17.6M
IMCOOI
154
Investment Management Corp of Ontario (IMCO)
Canada
$17.3M
OBAM
155
ODDO BHF Asset Management
France
$17.3M
Parnassus Investments
156
Parnassus Investments
California
$16.9M
JF
157
Jump Financial
Illinois
$15.9M
AGP
158
Artia Global Partners
Florida
$15.8M
DnB Asset Management
159
DnB Asset Management
Norway
$15.6M
RSS
160
Rosenblum Silverman Sutton
California
$15.5M
VCM
161
Voleon Capital Management
California
$15.5M
BA
162
Bridgewater Associates
Connecticut
$15.5M
Teacher Retirement System of Texas
163
Teacher Retirement System of Texas
Texas
$15.3M
AG
164
AIA Group
Hong Kong
$15.2M
TRSOTSOK
165
Teachers Retirement System of the State of Kentucky
Kentucky
$15M
BNP Paribas Asset Management
166
BNP Paribas Asset Management
France
$14.8M
PAI
167
Palo Alto Investors
California
$14.7M
AP
168
Antipodes Partners
Australia
$14.6M
RPAM
169
Rhenman & Partners Asset Management
Sweden
$14.5M
SG Americas Securities
170
SG Americas Securities
New York
$14.5M
ECM
171
ExodusPoint Capital Management
New York
$14.1M
FAF
172
Fjarde Ap-fonden
Sweden
$13.8M
ZIG
173
Zurich Insurance Group
Switzerland
$13.7M
Carson Wealth (CWM LLC)
174
Carson Wealth (CWM LLC)
Nebraska
$13.4M
PCMH
175
Polymer Capital Management (HK)
Hong Kong
$13.2M