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Alnylam Pharmaceuticals

818 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, 280 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 repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

26% more funds holding

Funds holding: 650818 (+168)

2.26% less ownership

Funds ownership: 101.3%99.03% (-2.3%)

13% less call options, than puts

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

Holders
818
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
AIMCA
251
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
$5.34M
LIP
252
Liontrust Investment Partners
United Kingdom
$5.32M
VF
253
Virtu Financial
New York
$5.32M
DFCM
254
Dark Forest Capital Management
Puerto Rico
$5.29M
Mercer Global Advisors
255
Mercer Global Advisors
Colorado
$5.24M
RBI
256
Raiffeisen Bank International
Austria
$5.19M
CFB
257
Cullen/Frost Bankers
Texas
$5.04M
TCM
258
Traynor Capital Management
Pennsylvania
$4.96M
SAM
259
Silvercrest Asset Management
New York
$4.93M
Mirae Asset Global ETFs Holdings
260
Mirae Asset Global ETFs Holdings
Hong Kong
$4.86M
Schroder Investment Management Group
261
Schroder Investment Management Group
United Kingdom
$4.84M
Balyasny Asset Management
262
Balyasny Asset Management
Illinois
$4.68M
William Blair & Company
263
William Blair & Company
Illinois
$4.67M
HT
264
Headlands Technologies
Illinois
$4.65M
AB
265
Amalgamated Bank
New York
$4.63M
HCS
266
Himension Capital (Singapore)
Singapore
$4.6M
DP
267
Diadema Partners
New Jersey
$4.56M
Bank of Montreal
268
Bank of Montreal
Ontario, Canada
$4.53M
ERSOT
269
Employees Retirement System of Texas
Texas
$4.46M
Mackenzie Financial
270
Mackenzie Financial
Ontario, Canada
$4.46M
Lazard Asset Management
271
Lazard Asset Management
New York
$4.45M
EAMA
272
EFG Asset Management (Americas)
Florida
$4.44M
SSA
273
Schonfeld Strategic Advisors
New York
$4.43M
JSSH
274
J. Safra Sarasin Holding
$4.34M
Hudson Bay Capital Management
275
Hudson Bay Capital Management
Connecticut
$4.29M