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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
301
$1.53M
302
$1.5M
303
$1.46M
304
$1.46M
305
$1.45M
306
$1.44M
307
$1.43M
308
$1.41M
309
$1.39M
310
$1.37M
311
$1.27M
312
$1.27M
313
$1.24M
314
$1.23M
315
$1.22M
316
$1.22M
317
$1.17M
318
$1.14M
319
$1.14M
320
$1.14M
321
$1.14M
322
$1.13M
323
$1.09M
324
$1.08M
325
$1.08M