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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
576
$4.59K
577
$4.32K
578
$4.05K
579
$4.05K
580
$4K
581
$3.78K
582
$3.78K
583
$3.52K
584
$2.7K
585
$2.7K
586
$2.35K
587
$2.16K
588
$2.16K
589
$2.09K
590
$2.05K
591
$1.89K
592
$1.89K
593
$1.89K
594
$1.62K
595
$1.62K
596
$1.62K
597
$1.57K
598
$1.35K
599
$1.35K
600
$1.35K