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Alnylam Pharmaceuticals

812 hedge funds and large institutions have $59B invested in Alnylam Pharmaceuticals in 2025 Q3 according to their latest regulatory filings, with 222 funds opening new positions, 277 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:

25% more repeat investments, than reductions

Existing positions increased: 277 | Existing positions reduced: 222

2.48% less ownership

Funds ownership: 101.29%98.81% (-2.5%)

13% less call options, than puts

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

Holders
812
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
SO
176
STRS Ohio
Ohio
$12.8M
FAF
177
Första AP-fonden
Sweden
$12.7M
USCWA
178
U.S. Capital Wealth Advisors
Texas
$12.6M
Cerity Partners
179
Cerity Partners
New York
$12.5M
IMRF
180
Illinois Municipal Retirement Fund
Illinois
$12.4M
Brown Advisory
181
Brown Advisory
Maryland
$12.1M
UIM
182
USS Investment Management
United Kingdom
$12M
Mariner
183
Mariner
Kansas
$12M
X
184
Xponance
Pennsylvania
$11.9M
EAM
185
Erste Asset Management
Austria
$11.6M
II
186
IFM Investors
Australia
$11.6M
MIF
187
Mediolanum International Funds
Ireland
$11.4M
Osaic Holdings
188
Osaic Holdings
Arizona
$11.3M
KCM
189
Kornitzer Capital Management
Kansas
$10.8M
EHI
190
Eagle Health Investments
Connecticut
$10.8M
Creative Planning
191
Creative Planning
Kansas
$10.4M
CUAMC
192
China Universal Asset Management Company
China
$10.4M
AT
193
AMF Tjänstepension
Sweden
$10.3M
Walleye Capital
194
Walleye Capital
New York
$10.2M
BBVA
195
Banco Bilbao Vizcaya Argentaria
Spain
$10.1M
ACM
196
Atika Capital Management
New York
$10.1M
Natixis Advisors
197
Natixis Advisors
Massachusetts
$9.89M
SLAM
198
Swiss Life Asset Management
$9.81M
Toronto Dominion Bank
199
Toronto Dominion Bank
Ontario, Canada
$9.68M
IMPI
200
Ilmarinen Mutual Pension Insurance
Finland
$9.58M