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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 %
FHA
526
First Horizon Advisors
Tennessee
$33.5K – – –
GTAM
527
Global Trust Asset Management
Florida
$32.9K – – –
Bessemer Group
528
Bessemer Group
New Jersey
$29K +$18.5K +69 +177%
HFM
529
Hartford Financial Management
Connecticut
$27K – – –
SW
530
SVB Wealth
Massachusetts
$27K +$27K +100 New
SSB
531
Sandy Spring Bank
Maryland
$24.8K -$1.35K -5 -5%
HI
532
Harbour Investments
Wisconsin
$24.6K -$11.3K -42 -32%
CIA
533
Cape Investment Advisory
Georgia
$24.3K – – –
AAP
534
Arax Advisory Partners
Colorado
$23K -$107K -396 -82%
RTC
535
Riverview Trust Company
Washington
$21.1K – – –
TFM
536
TFC Financial Management
Massachusetts
$20K – – –
SO
537
Sierra Ocean
California
$19.2K +$1.35K +5 +8%
Fifth Third Bancorp
538
Fifth Third Bancorp
Ohio
$18.9K +$1.35K +5 +8%
S
539
Sachetta
Massachusetts
$17.8K -$540 -2 -3%
HWM
540
Hemington Wealth Management
Virginia
$17K +$4.64K +18 +38%
MCM
541
MV Capital Management
Maryland
$16.2K +$2.7K +10 +20%
TC
542
Truvestments Capital
Florida
$15.4K – – –
BF
543
BOK Financial
Oklahoma
$14K -$88.8K -329 -86%
PWMG
544
Private Wealth Management Group
New Jersey
$13.8K +$11.6K +43 +538%
SCB
545
Saudi Central Bank
Saudi Arabia
$13.8K +$13.8K +51 New
GAM
546
Generali Asset Management
Italy
$13.5K -$810 -3 -6%
SJIM
547
St. Johns Investment Management
Florida
$13.5K – – –
PFSC
548
Peoples Financial Services Corp
Pennsylvania
$13.5K – – –
PSB
549
Piscataqua Savings Bank
New Hampshire
$13.5K – – –
WA
550
WPG Advisers
Maryland
$12.7K +$2.16K +8 +21%
20 21
22
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