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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
MR
901
Munich Reinsurance
GWM
902
Greenline Wealth Management
Florida
SSG
903
Summit Securities Group
New York
CWP
904
Concord Wealth Partners
Virginia
TW
905
Titan Wealth
GSWM
906
Golden State Wealth Management
California
HPC
907
HM Payson & Co
Maine
CIA
908
Cape Investment Advisory
Georgia
FIM
909
FWL Investment Management
Texas
PG
910
Proffitt & Goodson
Tennessee
EPG
911
Estate Planners Group
Pennsylvania
TH
912
TCTC Holdings
Texas
EW
913
Elyxium Wealth
California
VWWMG
914
Vermillion & White Wealth Management Group
Pennsylvania
M
915
MOTCO
Texas
VNA
916
Valley National Advisers
Pennsylvania
FHA
917
Flagship Harbor Advisors
Massachusetts
TFA
918
Toth Financial Advisory
Virginia
WTA
919
Washington Trust Advisors
Massachusetts
SRCM
920
Signature Resources Capital Management
California
CHC
921
City Holding Co
West Virginia
ANBT
922
American National Bank & Trust
Texas
EWP
923
Elevation Wealth Partners
California
SGK
924
Steigerwald Gordon & Koch
Virginia
CIAS
925
CBIZ Investment Advisory Services
Ohio