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Alnylam Pharmaceuticals

781 hedge funds and large institutions have $42.4B invested in Alnylam Pharmaceuticals in 2026 Q1 according to their latest regulatory filings, with 103 funds opening new positions, 319 increasing their positions, 254 reducing their positions, and 154 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less ownership

Funds ownership:

less funds holding

Funds holding:

18% less capital invested

Capital invested by funds: $51.7B → $42.4B (-$9.26B)

25% less funds holding in top 10

Funds holding in top 10: 43 (-1)

33% less first-time investments, than exits

New positions opened: 103 | Existing positions closed: 154

Holders
781
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
3
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$450M
Puts
$205M
Net Calls
Net Calls Change

Top Buyers

1 +$1.17B
2 +$916M
3 +$546M
4
Two Sigma Investments
Two Sigma Investments
New York
+$468M
5
ClearBridge Investments
ClearBridge Investments
New York
+$258M

Top Sellers

1 -$1.87B
2 -$450M
3 -$448M
4
Invesco
Invesco
Georgia
-$297M
5
1832 Asset Management
1832 Asset Management
Ontario, Canada
-$175M
Name Holding Trade Value Shares
Change
Change in
Stake
SAM
701
Sherman Asset Management
California
$4.96K
SEP
702
Signature Equity Partners
Ohio
$4.96K
HWM
703
HighMark Wealth Management
Minnesota
$4.63K
CFM
704
Cornerstone Financial Management
Massachusetts
$4.63K
SC
705
SouthState Corp
Florida
$4.3K
CCM
706
Chilton Capital Management
Texas
$4.3K
FC
707
Financial Consulate
Maryland
$4.3K
DWM
708
Dogwood Wealth Management
Kansas
$4.3K
CWIG
709
Chung Wu Investment Group
Texas
$4.3K
FCAS
710
First Command Advisory Services
Texas
$3.97K
MG
711
Mather Group
Illinois
$3.7K
TM
712
Torren Management
California
$3.64K
AA
713
Ancora Advisors
Ohio
$3.64K
BHWM
714
Bay Harbor Wealth Management
Maryland
$3.64K
ACM
715
Accent Capital Management
Ohio
$3.31K
CW
716
Curio Wealth
Maryland
$3.31K
AIC
717
Archer Investment Corporation
Indiana
$3.31K
HPWM
718
High Point Wealth Management
New Jersey
$3.31K
NS
719
NBC Securities
Alabama
$3.31K
TWM
720
Tripletail Wealth Management
Florida
$3.19K
MSFP
721
Mark Sheptoff Financial Planning
Connecticut
$3.01K
AG
722
AmeriFlex Group
Nevada
$2.98K
RWM
723
RMG Wealth Management
Wisconsin
$2.85K
DPW
724
DiNuzzo Private Wealth
Pennsylvania
$2.65K
CIR
725
Clear Investment Research
Georgia
$2.65K