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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
401
$461K
402
$459K
403
$457K
404
$456K
405
$453K
406
$452K
407
$440K
408
$439K
409
$416K
410
$414K
411
$405K
412
$404K
413
$402K
414
$400K
415
$400K
416
$397K
417
$396K
418
$389K
419
$385K
420
$379K
421
$372K
422
$371K
423
$371K
424
$367K
425
$365K