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Alnylam Pharmaceuticals

618 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, 238 increasing their positions, 197 reducing their positions, and 67 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
618
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 Sellers

1 -$428M
2 -$334M
3 -$103M
4
BlackRock
BlackRock
New York
-$88M
5
Corient Private Wealth
Corient Private Wealth
Florida
-$63.7M
Name Holding Trade Value Shares
Change
Change in
Stake
576
$3.78K
577
$3.78K
578
$3.52K
579
$2.7K
580
$2.7K
581
$2.35K
582
$2.16K
583
$2.16K
584
$2.09K
585
$2.05K
586
$1.89K
587
$1.89K
588
$1.89K
589
$1.62K
590
$1.62K
591
$1.62K
592
$1.57K
593
$1.35K
594
$1.35K
595
$1.35K
596
$1.08K
597
$843
598
$811
599
$810
600
$810