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CoStar Group

791 hedge funds and large institutions have $16.4B invested in CoStar Group in 2026 Q1 according to their latest regulatory filings, with 125 funds opening new positions, 307 increasing their positions, 276 reducing their positions, and 164 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: 125 | Existing positions closed: 164

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
791
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
DCU
601
Dara Capital US
Florida
$69.9K
POIA
602
Pin Oak Investment Advisors
Texas
$67K
SPIA
603
Steward Partners Investment Advisory
New York
$65.4K
IA
604
IFP Advisors
Florida
$64.8K
EFMH
605
E Fund Management (HK)
Hong Kong
$62.6K
RIL
606
Rothschild Investment LLC
Illinois
$52.5K
HWM
607
HighMark Wealth Management
Minnesota
$52.3K
ESC
608
Eurizon SLJ Capital
$51.6K
CFB
609
Cullen/Frost Bankers
Texas
$51.5K
AWM
610
Abound Wealth Management
Tennessee
$50.9K
AUB
611
Atlantic Union Bankshares
Virginia
$48.5K
OL
612
OneFund LLC
Florida
$46.2K
WCM
613
Winthrop Capital Management
Indiana
$43K
VCM
614
Versant Capital Management
Arizona
$42.2K
ACA
615
Atlas Capital Advisors
Wyoming
$41.6K
WTC
616
WhitTier Trust Company
Nevada
$40.2K
TPCW
617
TD Private Client Wealth
New York
$40.2K
Kayne Anderson Rudnick Investment Management
618
Kayne Anderson Rudnick Investment Management
California
$36K
Bank Julius Baer & Co
619
Bank Julius Baer & Co
Switzerland
$35.5K
TFA
620
Transamerica Financial Advisors
Florida
$35K
EI
621
EFG International
$34.9K
CI
622
CX Institutional
Indiana
$34K
Select Equity Group
623
Select Equity Group
New York
$30.9K
TWD
624
True Wealth Design
Ohio
$30.5K
ZBNA
625
Zions Bancorporation, National Association
Utah
$29.5K