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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
BOJHT
626
Bank of Jackson Hole Trust
Wyoming
$27.1K
WSFS
627
Wilmington Savings Fund Society
Delaware
$25.8K
HIA
628
HFM Investment Advisors
New Jersey
$25.7K
VIS
629
Vega Investment Solutions
France
$25.4K
GKIM
630
GW&K Investment Management
Massachusetts
$25K
TLCM
631
Twin Lakes Capital Management
California
$25K
HWA
632
Heritage Wealth Advisors
Virginia
$23.9K
CT
633
Colonial Trust
South Carolina
$22.2K
PPC
634
Park Place Capital
Alabama
$22K
CAM
635
Close Asset Management
United Kingdom
$21K
SWM
636
Spire Wealth Management
Virginia
$20.3K
NA
637
NewEdge Advisors
Louisiana
$20.3K
W
638
WealthCollab
Washington
$20.2K
RF
639
Rossby Financial
Florida
$19.9K
AGWCA
640
Annis Gardner Whiting Capital Advisors
Florida
$19.6K
TWC
641
TD Waterhouse Canada
Ontario, Canada
$19.6K
HI
642
Harbour Investments
Wisconsin
$18.4K
PTC
643
Private Trust Company
Ohio
$18.2K
FMII
644
Farmers & Merchants Investments Inc
Nebraska
$17.2K
SL
645
Salomon & Ludwin
Virginia
$16.7K
HNB
646
Hilltop National Bank
Wyoming
$15.3K
WIM
647
Westside Investment Management
California
$14.4K
OCWP
648
Owl Creek Wealth Partners
Colorado
$13.9K
GSWM
649
Golden State Wealth Management
California
$13.5K
OCM
650
Osterweis Capital Management
California
$13.2K