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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
URS
201
Utah Retirement Systems
Utah
$9.39M
Stifel Financial
202
Stifel Financial
Missouri
$9.25M
PFSRSONJ
203
Police & Firemen's Retirement System of New Jersey
New Jersey
$9.16M
MML Investors Services
204
MML Investors Services
Massachusetts
$8.97M
QCM
205
Quantinno Capital Management
New York
$8.79M
Acadian Asset Management
206
Acadian Asset Management
Massachusetts
$8.7M
BCIM
207
British Columbia Investment Management
British Columbia, Canada
$8.54M
EMPI
208
Elo Mutual Pension Insurance
Finland
$8.15M
Caisse de Depot et Placement du Quebec (CDPQ)
209
Caisse de Depot et Placement du Quebec (CDPQ)
Quebec, Canada
$8.13M
SCM
210
Silvant Capital Management
Georgia
$8.06M
ET
211
Entropy Technologies
New York
$7.83M
Rafferty Asset Management
212
Rafferty Asset Management
New York
$7.82M
Verition Fund Management
213
Verition Fund Management
Connecticut
$7.77M
CGIM
214
Capital Group Investment Management
Singapore
$7.69M
NAM
215
Nissay Asset Management
Japan
$7.56M
JFG
216
Jefferies Financial Group
New York
$7.54M
EAM
217
EFG Asset Management
Oregon
$7.44M
Twin Tree Management
218
Twin Tree Management
Texas
$7.3M
QC
219
Quantessence Capital
New York
$7.24M
SMDAM
220
Sumitomo Mitsui DS Asset Management
Japan
$7.22M
Daiwa Securities Group
221
Daiwa Securities Group
Japan
$7.07M
MOACM
222
Mutual of America Capital Management
New York
$6.98M
SCM
223
Soleus Capital Management
Connecticut
$6.95M
Wealth Enhancement Advisory Services
224
Wealth Enhancement Advisory Services
Minnesota
$6.68M
FDCDDQ
225
Federation des caisses Desjardins du Quebec
Quebec, Canada
$6.67M