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CoStar Group

786 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, 306 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
786
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
IA
601
IFP Advisors
Florida
$64.8K
EFMH
602
E Fund Management (HK)
Hong Kong
$62.6K
RIL
603
Rothschild Investment LLC
Illinois
$52.5K
HWM
604
HighMark Wealth Management
Minnesota
$52.3K
ESC
605
Eurizon SLJ Capital
$51.6K
CFB
606
Cullen/Frost Bankers
Texas
$51.5K
AWM
607
Abound Wealth Management
Tennessee
$50.9K
AUB
608
Atlantic Union Bankshares
Virginia
$48.5K
OL
609
OneFund LLC
Florida
$46.2K
WCM
610
Winthrop Capital Management
Indiana
$43K
VCM
611
Versant Capital Management
Arizona
$42.2K
ACA
612
Atlas Capital Advisors
Wyoming
$41.6K
WTC
613
WhitTier Trust Company
Nevada
$40.2K
TPCW
614
TD Private Client Wealth
New York
$40.2K
Kayne Anderson Rudnick Investment Management
615
Kayne Anderson Rudnick Investment Management
California
$36K
Bank Julius Baer & Co
616
Bank Julius Baer & Co
Switzerland
$35.5K
TFA
617
Transamerica Financial Advisors
Florida
$35K
EI
618
EFG International
$34.9K
CI
619
CX Institutional
Indiana
$34K
Select Equity Group
620
Select Equity Group
New York
$30.9K
TWD
621
True Wealth Design
Ohio
$30.5K
ZBNA
622
Zions Bancorporation, National Association
Utah
$29.5K
BOJHT
623
Bank of Jackson Hole Trust
Wyoming
$27.1K
WSFS
624
Wilmington Savings Fund Society
Delaware
$25.8K
HIA
625
HFM Investment Advisors
New Jersey
$25.7K