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Alnylam Pharmaceuticals

802 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, 272 increasing their positions, 219 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: 272 | Existing positions reduced: 219

2.48% less ownership

Funds ownership: 101.22%98.74% (-2.5%)

13% less call options, than puts

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

Holders
802
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
LA
226
Linden Advisors
New York
$6.55M
VPIM
227
Vanguard Personalized Indexing Management
California
$6.38M
AS
228
Aware Super
Australia
$6.23M
TAF
229
Tredje AP-fonden
Sweden
$6.14M
Wealthfront Advisers
230
Wealthfront Advisers
California
$6.12M
HFS
231
Hantz Financial Services
Michigan
$6M
PNC Financial Services Group
232
PNC Financial Services Group
Pennsylvania
$5.98M
Holocene Advisors
233
Holocene Advisors
New York
$5.97M
AAP
234
Arax Advisory Partners
Colorado
$5.97M
CCIA
235
Campbell & Co Investment Adviser
Maryland
$5.79M
FCM
236
Fieldview Capital Management
Michigan
$5.77M
Public Employees Retirement Association of Colorado
237
Public Employees Retirement Association of Colorado
Colorado
$5.67M
TI
238
Trexquant Investment
Connecticut
$5.65M
Nordea Investment Management
239
Nordea Investment Management
Sweden
$5.65M
Credit Agricole
240
Credit Agricole
France
$5.64M
Nisa Investment Advisors
241
Nisa Investment Advisors
Missouri
$5.53M
CIBC World Market
242
CIBC World Market
Ontario, Canada
$5.52M
AssetMark Inc
243
AssetMark Inc
California
$5.43M
ZIM
244
Zacks Investment Management
Illinois
$5.43M
Comerica Bank
245
Comerica Bank
Texas
$5.38M
AIMCA
246
Alberta Investment Management Corp (AIMCo)
Alberta, Canada
$5.34M
LIP
247
Liontrust Investment Partners
United Kingdom
$5.32M
VF
248
Virtu Financial
New York
$5.32M
DFCM
249
Dark Forest Capital Management
Puerto Rico
$5.29M
Mercer Global Advisors
250
Mercer Global Advisors
Colorado
$5.24M