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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
451
$286K
452
$284K
453
$282K
454
$279K
455
$278K
456
$278K
457
$275K
458
$275K
459
$274K
460
$270K
461
$270K
462
$270K
463
$269K
464
$268K
465
$264K
466
$259K
467
$259K
468
$258K
469
$249K
470
$247K
471
$245K
472
$240K
473
$234K
474
$234K
475
$233K