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Alnylam Pharmaceuticals

623 hedge funds and large institutions have $34.3B invested in Alnylam Pharmaceuticals in 2025 Q1 according to their latest regulatory filings, with 106 funds opening new positions, 237 increasing their positions, 202 reducing their positions, and 68 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
623
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$274M
Puts
$238M
Net Calls
Net Calls Change

Top Buyers

1 +$469M
2 +$166M
3 +$112M
4
Invesco
Invesco
Georgia
+$91.3M
5
Vanguard Group
Vanguard Group
Pennsylvania
+$83.1M

Top Sellers

1 -$408M
2 -$334M
3 -$98.3M
4
BlackRock
BlackRock
New York
-$83.7M
5
Corient Private Wealth
Corient Private Wealth
Florida
-$60.6M
Name Holding Trade Value Shares
Change
Change in
Stake
226
$3.54M
227
$3.53M
228
$3.5M
229
$3.49M
230
$3.48M
231
$3.43M
232
$3.38M
233
$3.34M
234
$3.22M
235
$3.21M
236
$2.99M
237
$2.94M
238
$2.91M
239
$2.89M
240
$2.88M
241
$2.87M
242
$2.72M
243
$2.71M
244
$2.71M
245
$2.66M
246
$2.65M
247
$2.65M
248
$2.56M
249
$2.55M
250
$2.53M