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Alnylam Pharmaceuticals
ALNY

Overview Fund Activity

617 hedge funds and large institutions have $34.2B invested in Alnylam Pharmaceuticals in 2025 Q1 according to their latest regulatory filings, with 107 funds opening new positions, 236 increasing their positions, 197 reducing their positions, and 67 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
617
Holders Change
+32
Holders Change %
+5.47%
% of All Funds
8.38%
Holding in Top 10
10
Holding in Top 10 Change
+6
Holding in Top 10 Change %
+150%
% of All Funds
0.14%
New
107
Increased
236
Reduced
197
Closed
67
Calls
$274M
Puts
$238M
Net Calls
+$35.4M
Net Calls Change
+$6.38M

Top Buyers

1
Fidelity Investments
Fidelity Investments
Massachusetts
+$493M
2
Bank of America
Bank of America
North Carolina
+$174M
3
Invesco
Invesco
Georgia
+$95.9M
4
Vanguard Group
Vanguard Group
Pennsylvania
+$87.3M
5
Point72 Asset Management
Point72 Asset Management
Connecticut
+$81.2M

Top Sellers

1
Wellington Management Group
Wellington Management Group
Massachusetts
-$428M
2
Capital International Investors
Capital International Investors
California
-$334M
3
Baillie Gifford & Co
Baillie Gifford & Co
United Kingdom
-$103M
4
BlackRock
BlackRock
New York
-$88M
5
Corient Private Wealth
Corient Private Wealth
Florida
-$63.7M
Name Holding Trade Value Shares
Change 		Shares
Change %
SCM
201
Silvant Capital Management
Georgia
$4.37M – – –
Creative Planning
202
Creative Planning
Kansas
$4.35M +$1.43M +5,286 +49%
PE
203
Point72 Europe
United Kingdom
$4.31M +$4.31M +15,958 New
TAF
204
Tredje AP-fonden
Sweden
$4.3M +$1.66M +6,165 +63%
BNP Paribas Asset Management
205
BNP Paribas Asset Management
France
$4.29M +$1.02M +3,784 +31%
JF
206
Jump Financial
Illinois
$4.24M +$154K +572 +4%
JFG
207
Jefferies Financial Group
New York
$4.14M +$4.14M +15,347 New
HCS
208
Himension Capital (Singapore)
Singapore
$4.13M +$2.91M +10,773 +238%
PAS
209
Point72 Asia (Singapore)
Singapore
$4.05M +$4.05M +15,006 New
Mariner
210
Mariner
Kansas
$4.02M +$329K +1,217 +9%
Cerity Partners
211
Cerity Partners
New York
$3.95M +$302K +1,117 +8%
JAM
212
Jupiter Asset Management
United Kingdom
$3.94M -$223K -825 -5%
GAM
213
Gotham Asset Management
New York
$3.92M +$970K +3,593 +33%
Wealth Enhancement Advisory Services
214
Wealth Enhancement Advisory Services
Minnesota
$3.89M +$496K +1,838 +15%
ACM
215
Aquatic Capital Management
Illinois
$3.87M -$7.08M -26,204 -65%
Mirae Asset Global ETFs Holdings
216
Mirae Asset Global ETFs Holdings
Hong Kong
$3.76M -$210K -778 -5%
AS
217
Aware Super
Australia
$3.69M – – –
MOACM
218
Mutual of America Capital Management
New York
$3.68M +$3.21M +11,881 +674%
ASN
219
Advisory Services Network
Georgia
$3.65M +$1.96M +7,248 +116%
EAMA
220
EFG Asset Management (Americas)
Florida
$3.61M -$425K -1,574 -11%
PNC Financial Services Group
221
PNC Financial Services Group
Pennsylvania
$3.54M +$158K +585 +5%
Balyasny Asset Management
222
Balyasny Asset Management
Illinois
$3.54M +$3.54M +13,116 New
DP
223
Diadema Partners
New Jersey
$3.54M +$3.54M +13,115 New
SCM
224
Sterling Capital Management
North Carolina
$3.54M -$1.35M -4,990 -28%
Public Employees Retirement Association of Colorado
225
Public Employees Retirement Association of Colorado
Colorado
$3.53M – – –
7 8
9
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