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Alnylam Pharmaceuticals
ALNY

Overview Fund Activity

617 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, 236 increasing their positions, 197 reducing their positions, and 67 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
617
Holders Change
+32
Holders Change %
+5.47%
% of All Funds
8.38%
Holding in Top 10
10
Holding in Top 10 Change
+6
Holding in Top 10 Change %
+150%
% of All Funds
0.14%
New
107
Increased
236
Reduced
197
Closed
67
Calls
$274M
Puts
$238M
Net Calls
+$35.4M
Net Calls Change
+$6.38M

Top Buyers

1
Fidelity Investments
Fidelity Investments
Massachusetts
+$493M
2
Bank of America
Bank of America
North Carolina
+$174M
3
Invesco
Invesco
Georgia
+$95.9M
4
Vanguard Group
Vanguard Group
Pennsylvania
+$87.3M
5
Point72 Asset Management
Point72 Asset Management
Connecticut
+$81.2M

Top Sellers

1
Wellington Management Group
Wellington Management Group
Massachusetts
-$428M
2
Capital International Investors
Capital International Investors
California
-$334M
3
Baillie Gifford & Co
Baillie Gifford & Co
United Kingdom
-$103M
4
BlackRock
BlackRock
New York
-$88M
5
Corient Private Wealth
Corient Private Wealth
Florida
-$63.7M
Name Holding Trade Value Shares
Change 		Shares
Change %
PCP
476
Proficio Capital Partners
Massachusetts
$218K +$218K +808 New
MF
477
Meridian Financial
Massachusetts
$216K -$27K -100 -11%
CCC
478
Compass Capital Corp
Massachusetts
$215K – – –
Cambridge Investment Research Advisors
479
Cambridge Investment Research Advisors
Iowa
$213K +$213K +789 New
EL
480
Essex LLC
Illinois
$213K +$213K +788 New
EI
481
Ellevest Inc
New York
$209K -$176K -651 -46%
HWM
482
HB Wealth Management
Georgia
$208K +$208K +771 New
AA
483
Alta Advisers
United Kingdom
$204K +$204K +757 New
SFC
484
Strategic Financial Concepts
Texas
$203K +$203K +752 New
AG
485
Ascent Group
Virginia
$202K +$202K +749 New
PPW
486
Parcion Private Wealth
Washington
$202K +$202K +748 New
National Bank of Canada
487
National Bank of Canada
Quebec, Canada
$179K -$1.35K -5 -0.7%
ZBNA
488
Zions Bancorporation, National Association
Utah
$174K +$174K +646 New
CIAM
489
Caitong International Asset Management
Hong Kong
$167K +$163K +602 +3,763%
GI
490
GAMMA Investing
California
$166K +$20.8K +77 +14%
LC
491
Lindbrook Capital
California
$161K +$13.5K +50 +9%
AF
492
Allworth Financial
California
$150K +$5.09K +21 +4%
QCG
493
Quadrant Capital Group
Ohio
$148K +$81.5K +302 +123%
Northwestern Mutual Wealth Management
494
Northwestern Mutual Wealth Management
Wisconsin
$142K +$13.2K +49 +10%
FDW
495
Fourth Dimension Wealth
Ohio
$136K +$136K +504 New
FFO
496
Fortitude Family Office
Arizona
$135K +$135K +500 New
GWM
497
Geneos Wealth Management
Colorado
$124K +$111K +412 +877%
EWA
498
EverSource Wealth Advisors
Alabama
$123K +$10.5K +39 +9%
MCM
499
MAI Capital Management
Ohio
$121K +$810 +3 +0.7%
Jones Financial Companies
500
Jones Financial Companies
Missouri
$112K +$41.1K +153 +58%
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