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Alnylam Pharmaceuticals

645 hedge funds and large institutions have $43B invested in Alnylam Pharmaceuticals in 2025 Q2 according to their latest regulatory filings, with 96 funds opening new positions, 257 increasing their positions, 214 reducing their positions, and 62 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more capital invested

Capital invested by funds: $ → $

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more funds holding

Funds holding:

3.41% more ownership

Funds ownership: 97.81%101.22% (+3.4%)

8% less call options, than puts

Call options by funds: $188M | Put options by funds: $203M

10% less funds holding in top 10

Funds holding in top 10: 109 (-1)

Holders
645
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
9
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$188M
Puts
$203M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
AV
251
ASR Vermogensbeheer
Netherlands
$2.91M
RBI
252
Raiffeisen Bank International
Austria
$2.87M
Schroder Investment Management Group
253
Schroder Investment Management Group
United Kingdom
$2.8M
JFG
254
Jefferies Financial Group
New York
$2.72M
LA
255
LBP AM
France
$2.71M
KRS
256
Kentucky Retirement Systems
Kentucky
$2.69M
Nisa Investment Advisors
257
Nisa Investment Advisors
Missouri
$2.69M
GCM
258
Genus Capital Management
British Columbia, Canada
$2.68M
M&T Bank
259
M&T Bank
New York
$2.67M
Man Group
260
Man Group
United Kingdom
$2.64M
MIM
261
MetLife Investment Management
New Jersey
$2.53M
Lazard Asset Management
262
Lazard Asset Management
New York
$2.53M
ASN
263
Advisory Services Network
Georgia
$2.52M
Acadian Asset Management
264
Acadian Asset Management
Massachusetts
$2.52M
Voloridge Investment Management
265
Voloridge Investment Management
Florida
$2.51M
FDCDDQ
266
Federation des caisses Desjardins du Quebec
Quebec, Canada
$2.46M
SAM
267
Shell Asset Management
Netherlands
$2.37M
PSC
268
Portman Square Capital
United Kingdom
$2.27M
BAMF
269
BI Asset Management Fondsmaeglerselskab
Denmark
$2.25M
AAF
270
Andra AP-fonden
Sweden
$2.25M
JPMIA
271
J.P. Marvel Investment Advisors
Massachusetts
$2.23M
MFAM
272
Motley Fool Asset Management
Virginia
$2.17M
SGH
273
Sivik Global Healthcare
Connecticut
$2.12M
GIBU
274
Gulf International Bank (UK)
United Kingdom
$2.12M
OSAM
275
O'Shaughnessy Asset Management
Connecticut
$2.1M