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CoStar Group

785 hedge funds and large institutions have $16.4B invested in CoStar Group in 2026 Q1 according to their latest regulatory filings, with 126 funds opening new positions, 305 increasing their positions, 272 reducing their positions, and 166 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:

24% less first-time investments, than exits

New positions opened: 126 | Existing positions closed: 166

41% less capital invested

Capital invested by funds: $27.8B → $16.4B (-$11.3B)

59% less funds holding in top 10

Funds holding in top 10: 177 (-10)

Holders
785
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
7
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$142M
Puts
$39.3M
Net Calls
Net Calls Change

Top Sellers

1 -$302M
2 -$233M
3 -$216M
4
TP
Third Point
New York
-$213M
5
BAMCO Inc
BAMCO Inc
New York
-$166M
Name Holding Trade Value Shares
Change
Change in
Stake
VC
901
VarCov Co
Connecticut
DT
902
Diversified Trust
Tennessee
CRC
903
Curi RMB Capital
Illinois
EFG
904
Everhart Financial Group
Ohio
IFA
905
Index Fund Advisors
California
CFG
906
Cooper Financial Group
California
PFM
907
Patton Fund Management
Texas
PM
908
Phraction Management
Connecticut
HIIFS
909
Harel Insurance Investments & Financial Services
Israel
SSG
910
Summit Securities Group
New York
DT
911
DV Trading
Illinois
SIM
912
Sentry Investment Management
Wisconsin
SC
913
Steph & Co
Wisconsin
NA
914
NewEdge Advisors
Louisiana
GAFA
915
Garton & Associates Financial Advisors
Kentucky
DWS
916
Dynamic Wealth Strategies
California
CIAS
917
CBIZ Investment Advisory Services
Ohio
CFS
918
CGC Financial Services
Oregon
PWA
919
Physician Wealth Advisors
Utah
EW
920
Elyxium Wealth
California
PWMG
921
Private Wealth Management Group
New Jersey
FHA
922
Flagship Harbor Advisors
Massachusetts
CWP
923
Concord Wealth Partners
Virginia
TM
924
Torren Management
California
HHMI
925
Howard Hughes Medical Institute
Maryland