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Alnylam Pharmaceuticals
ALNY

Overview Fund Activity

646 hedge funds and large institutions have $43B invested in Alnylam Pharmaceuticals in 2025 Q2 according to their latest regulatory filings, with 97 funds opening new positions, 257 increasing their positions, 214 reducing their positions, and 63 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
646
Holders Change
+28
Holders Change %
+4.53%
% of All Funds
8.66%
Holding in Top 10
9
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-10%
% of All Funds
0.12%
New
97
Increased
257
Reduced
214
Closed
63
Calls
$188M
Puts
$203M
Net Calls
-$15.5M
Net Calls Change
-$50.8M

Top Buyers

1
Citadel Advisors
Citadel Advisors
Florida
$196M
2
Holocene Advisors
Holocene Advisors
New York
$195M
3
ClearBridge Investments
ClearBridge Investments
New York
$182M
4
Macquarie Group
Macquarie Group
Australia
$196M
5
Fidelity Investments
Fidelity Investments
Massachusetts
$5.15B

Top Sellers

1
AQR Capital Management
AQR Capital Management
Connecticut
$61.3M
2
Baillie Gifford & Co
Baillie Gifford & Co
United Kingdom
$989M
3
Wellington Management Group
Wellington Management Group
Massachusetts
$677M
4
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
$1.03B
5
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT)
United Kingdom
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
DPW
601
DiNuzzo Private Wealth
Pennsylvania
$3.91K +$652 +2 +20%
SS
602
Sunbelt Securities
Texas
$3.53K – – –
WAM
603
WFA Asset Management
Wisconsin
$3.4K – – –
MSFP
604
Mark Sheptoff Financial Planning
Connecticut
$3.26K – – –
CW
605
Curio Wealth
Maryland
$3.26K +$2.94K +9 +900%
AIC
606
Archer Investment Corporation
Indiana
$3.26K +$3.26K +10 New
PCM
607
Penserra Capital Management
California
$3K -$302K -1,208 -99%
NS
608
NBC Securities
Alabama
$3K +$3K +12 New
FRA
609
Front Row Advisors
California
$2.94K -$1.63K -5 -36%
NWM
610
Nova Wealth Management
Florida
$2.65K -$2.99K -9 -53%
FWM
611
FSA Wealth Management
Massachusetts
$2.61K – – –
CIR
612
Clear Investment Research
Georgia
$2.61K – – –
UB
613
UMB Bank
Missouri
$2.61K +$1.96K +6 +300%
HWA
614
HHM Wealth Advisors
Tennessee
$2.28K – – –
HWP
615
Highline Wealth Partners
California
$2.28K +$978 +3 +75%
TCA
616
Trifecta Capital Advisors
Illinois
$2.28K +$2.28K +7 New
JSAM
617
J. Safra Asset Management
New York
$2.26K – – –
WCM
618
WealthTrak Capital Management
Virginia
$1.96K +$1.31K +4 +200%
TIM
619
Tortoise Investment Management
New York
$1.96K +$1.96K +6 New
BHWM
620
Bay Harbor Wealth Management
Maryland
$1.96K +$1.3K +4 +200%
MA
621
Montag & Associates
Georgia
$1.9K – – –
Kayne Anderson Rudnick Investment Management
622
Kayne Anderson Rudnick Investment Management
California
$1.86K +$1.86K +5 New
GC
623
Garde Capital
Washington
$1.63K – – –
TFA
624
Toth Financial Advisory
Virginia
$1.63K +$1.63K +5 New
SC
625
Stephens Consulting
Michigan
$1.63K +$1.63K +5 New
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