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CoStar Group

889 hedge funds and large institutions have $34.8B invested in CoStar Group in 2025 Q3 according to their latest regulatory filings, with 105 funds opening new positions, 355 increasing their positions, 310 reducing their positions, and 63 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more first-time investments, than exits

New positions opened: | Existing positions closed:

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more funds holding

Funds holding:

2% more capital invested

Capital invested by funds: $34.2B → $34.8B (+$682M)

3.13% less ownership

Funds ownership: 100.67%97.54% (-3.1%)

4% less funds holding in top 10

Funds holding in top 10: 2625 (-1)

Holders
889
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
25
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$199M
Puts
$81.5M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
OCM
701
Osterweis Capital Management
California
$149K
DAM
702
Delta Asset Management
Tennessee
$148K
WT
703
Whittier Trust
California
$148K
PWM
704
Proathlete Wealth Management
Florida
$141K
WBC
705
Westpac Banking Corp
Australia
$134K
FFA
706
Farther Finance Advisors
California
$134K
WTC
707
WhitTier Trust Company
Nevada
$125K
JFGIW
708
Johnson Financial Group Inc (Wisconsin)
Wisconsin
$123K
SC
709
Steph & Co
Wisconsin
$121K
LFG
710
Larson Financial Group
Missouri
$110K
HWM
711
HighMark Wealth Management
Minnesota
$109K
QL
712
Quarry LP
New York
$107K
AWM
713
Abound Wealth Management
Tennessee
$106K
Loomis, Sayles & Company
714
Loomis, Sayles & Company
Massachusetts
$98.1K
OL
715
OneFund LLC
Florida
$92.6K
A
716
AlphaQuest
New York
$90.2K
Group One Trading
717
Group One Trading
Illinois
$89.5K
CH
718
Cromwell Holdings
Wyoming
$87.5K
SIM
719
Sentry Investment Management
Wisconsin
$86K
NFSG
720
Newbridge Financial Services Group
Florida
$75.7K
WSFS
721
Wilmington Savings Fund Society
Delaware
$71K
IA
722
IFP Advisors
Florida
$66.2K
PC
723
Promus Capital
Illinois
$64K
WA
724
WPG Advisers
Maryland
$60.4K
CFO
725
CVA Family Office
Colorado
$59.2K