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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
Ohio Public Employees Retirement System (OPERS)
151
Ohio Public Employees Retirement System (OPERS)
Ohio
$17.8M
ASRS
152
Arizona State Retirement System
Arizona
$17.6M
IMCOOI
153
Investment Management Corp of Ontario (IMCO)
Canada
$17.3M
OBAM
154
ODDO BHF Asset Management
France
$17.3M
Parnassus Investments
155
Parnassus Investments
California
$16.9M
JF
156
Jump Financial
Illinois
$15.9M
AGP
157
Artia Global Partners
Florida
$15.8M
DnB Asset Management
158
DnB Asset Management
Norway
$15.6M
RSS
159
Rosenblum Silverman Sutton
California
$15.5M
VCM
160
Voleon Capital Management
California
$15.5M
BA
161
Bridgewater Associates
Connecticut
$15.5M
Teacher Retirement System of Texas
162
Teacher Retirement System of Texas
Texas
$15.3M
TRSOTSOK
163
Teachers Retirement System of the State of Kentucky
Kentucky
$15M
BNP Paribas Asset Management
164
BNP Paribas Asset Management
France
$14.8M
PAI
165
Palo Alto Investors
California
$14.7M
AP
166
Antipodes Partners
Australia
$14.6M
RPAM
167
Rhenman & Partners Asset Management
Sweden
$14.5M
SG Americas Securities
168
SG Americas Securities
New York
$14.5M
ECM
169
ExodusPoint Capital Management
New York
$14.1M
FAF
170
Fjarde Ap-fonden
Sweden
$13.8M
ZIG
171
Zurich Insurance Group
Switzerland
$13.7M
Carson Wealth (CWM LLC)
172
Carson Wealth (CWM LLC)
Nebraska
$13.4M
PCMH
173
Polymer Capital Management (HK)
Hong Kong
$13.2M
GAM
174
Gotham Asset Management
New York
$12.8M
SO
175
STRS Ohio
Ohio
$12.8M