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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
Chevy Chase Trust
151
Chevy Chase Trust
Maryland
$8.43M
KCM
152
Kornitzer Capital Management
Kansas
$8.38M
DB
153
Danske Bank
Denmark
$8.37M
GT
154
Glenmede Trust
Pennsylvania
$8.35M
Prudential Financial
155
Prudential Financial
New Jersey
$8.31M
New York State Common Retirement Fund
156
New York State Common Retirement Fund
New York
$8.28M
XT
157
XTX Topco
Cayman Islands
$8.12M
YL
158
YCG LLC
Texas
$7.91M
SCM
159
Sone Capital Management
New York
$7.63M
DekaBank Deutsche Girozentrale
160
DekaBank Deutsche Girozentrale
Germany
$7.51M
Asset Management One
161
Asset Management One
Japan
$7.48M
Korea Investment Corp
162
Korea Investment Corp
South Korea
$7.42M
APG Asset Management
163
APG Asset Management
Netherlands
$7.36M
Public Employees Retirement Association of Colorado
164
Public Employees Retirement Association of Colorado
Colorado
$7.33M
CA
165
Cortland Associates
Missouri
$7.3M
Tudor Investment Corp
166
Tudor Investment Corp
Connecticut
$7.23M
Treasurer of the State of North Carolina
167
Treasurer of the State of North Carolina
North Carolina
$7.21M
CIBC Asset Management
168
CIBC Asset Management
Ontario, Canada
$7.14M
Zurich Cantonal Bank
169
Zurich Cantonal Bank
Switzerland
$6.95M
LA
170
LBP AM
France
$6.93M
Nomura Asset Management
171
Nomura Asset Management
Japan
$6.61M
Cerity Partners
172
Cerity Partners
New York
$6.55M
TAF
173
Tredje AP-fonden
Sweden
$6.52M
GIM
174
Granahan Investment Management
Massachusetts
$6.5M
COPPSERS
175
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$6.28M