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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
476
$230K
477
$224K
478
$223K
479
$223K
480
$218K
481
$216K
482
$215K
483
$213K
484
$213K
485
$209K
486
$208K
487
$204K
488
$203K
489
$202K
490
$202K
491
$179K
492
$174K
493
$167K
494
$166K
495
$161K
496
$150K
497
$148K
498
$142K
499
$136K
500
$135K