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Alnylam Pharmaceuticals
ALNY

Overview Fund Activity

640 hedge funds and large institutions have $42.9B invested in Alnylam Pharmaceuticals in 2025 Q2 according to their latest regulatory filings, with 96 funds opening new positions, 253 increasing their positions, 213 reducing their positions, and 63 closing their positions.

Holders
640
Holders Change
+22
Holders Change %
+3.56%
% of All Funds
8.6%
Holding in Top 10
9
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-10%
% of All Funds
0.12%
New
96
Increased
253
Reduced
213
Closed
63
Calls
$122M
Puts
$147M
Net Calls
-$25M
Net Calls Change
-$60.4M

Top Buyers

1
Norges Bank
1
Norges Bank
Norway
$663M
2
Citadel Advisors
2
Citadel Advisors
Florida
$196M
3
Holocene Advisors
3
Holocene Advisors
New York
$195M
4
ClearBridge Investments
4
ClearBridge Investments
New York
$182M
5
Macquarie Group
5
Macquarie Group
Australia
$196M

Top Sellers

1
AQR Capital Management
1
AQR Capital Management
Connecticut
$61.3M
2
Baillie Gifford & Co
2
Baillie Gifford & Co
United Kingdom
$989M
3
Wellington Management Group
3
Wellington Management Group
Massachusetts
$677M
4
T. Rowe Price Associates
4
T. Rowe Price Associates
Maryland
$1.03B
5
Qube Research & Technologies (QRT)
5
Qube Research & Technologies (QRT)
United Kingdom
$0
Name Market Value Shares Shares
Change 		Shares
Change %
Allspring Global Investments
51
Allspring Global Investments
North Carolina
$101M 312,216 +41,292 +15%
Dimensional Fund Advisors
52
Dimensional Fund Advisors
Texas
$99.6M 305,563 -4,256 -1%
Sumitomo Mitsui Trust Group
53
Sumitomo Mitsui Trust Group
Japan
$95.7M 293,542 +2,066 +0.7%
Raymond James Financial
54
Raymond James Financial
Florida
$88.2M 270,450 +1,480 +0.6%
Two Sigma Advisers
55
Two Sigma Advisers
New York
$86.8M 266,100 -9,700 -4%
Royal London Asset Management
56
Royal London Asset Management
United Kingdom
$84.5M 259,071 -27,872 -10%
First Trust Advisors
57
First Trust Advisors
Illinois
$82.1M 251,817 +71,357 +40%
Citigroup
58
Citigroup
New York
$80.9M 248,238 +53,504 +27%
Marshall Wace
59
Marshall Wace
United Kingdom
$77.8M 238,573 -30,359 -11%
CS
60
Candriam SCA
Luxembourg
$77.6M 238,084 -11,835 -5%
PCH
61
Polar Capital Holdings
United Kingdom
$77.4M 237,500 -42,500 -15%
1832 Asset Management
62
1832 Asset Management
Ontario, Canada
$72.8M 223,345 +79,300 +55%
Aberdeen Group
63
Aberdeen Group
United Kingdom
$70.4M 218,624 +3,239 +2%
California Public Employees Retirement System
64
California Public Employees Retirement System
California
$69M 211,581 +10,100 +5%
VOYA Investment Management
65
VOYA Investment Management
Georgia
$68.8M 211,045 +119,901 +132%
Allianz Asset Management
66
Allianz Asset Management
Germany
$67.2M 205,993 -12,510 -6%
Point72 Asset Management
67
Point72 Asset Management
Connecticut
$65.7M 201,396 -99,239 -33%
RhumbLine Advisers
68
RhumbLine Advisers
Massachusetts
$65.4M 200,485 +19,022 +10%
California State Teachers Retirement System (CalSTRS)
69
California State Teachers Retirement System (CalSTRS)
California
$65M 199,316 +1,873 +0.9%
Ameriprise
70
Ameriprise
Minnesota
$63.1M 193,649 +84,513 +77%
KBC Group
71
KBC Group
Belgium
$63.1M 193,550 +174,238 +902%
AQR Capital Management
72
AQR Capital Management
Connecticut
$61.3M 188,249 -640,095 -77%
Westfield Capital Management
73
Westfield Capital Management
Massachusetts
$60.9M 186,905 -5,267 -3%
National Pension Service
74
National Pension Service
South Korea
$57.1M 175,046 +1,387 +0.8%
SCM
75
SCS Capital Management
Massachusetts
$55.7M 170,662 -415 -0.2%
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