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CoStar Group

881 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, 351 increasing their positions, 308 reducing their positions, and 62 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: $34.1B → $34.8B (+$693M)

3.09% less ownership

Funds ownership: 100.61%97.52% (-3.1%)

4% less funds holding in top 10

Funds holding in top 10: 2625 (-1)

Holders
881
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
Robeco Institutional Asset Management
251
Robeco Institutional Asset Management
Netherlands
$6.3M
UIM
252
USS Investment Management
United Kingdom
$6.21M
Bank Julius Baer & Co
253
Bank Julius Baer & Co
Switzerland
$6.15M
SCM
254
Sterling Capital Management
North Carolina
$6.08M
SMDAM
255
Sumitomo Mitsui DS Asset Management
Japan
$5.94M
BZWA
256
Blue Zone Wealth Advisors
California
$5.93M
URS
257
Utah Retirement Systems
Utah
$5.81M
DA
258
Dash Acquisitions
California
$5.74M
US Bancorp
259
US Bancorp
Minnesota
$5.74M
JFG
260
Jefferies Financial Group
New York
$5.67M
PFSRSONJ
261
Police & Firemen's Retirement System of New Jersey
New Jersey
$5.67M
Wellington Management Group
262
Wellington Management Group
Massachusetts
$5.6M
Cerity Partners
263
Cerity Partners
New York
$5.44M
X
264
Xponance
Pennsylvania
$5.34M
Pacer Advisors
265
Pacer Advisors
Pennsylvania
$5.34M
OSAM
266
O'Shaughnessy Asset Management
Connecticut
$5.29M
AAIS
267
ABN AMRO Investment Solutions
$5.26M
BCIM
268
British Columbia Investment Management
British Columbia, Canada
$5.12M
Bank of Nova Scotia
269
Bank of Nova Scotia
Ontario, Canada
$5.06M
HCM
270
Hahn Capital Management
California
$5.03M
EMPI
271
Elo Mutual Pension Insurance
Finland
$5M
RFC
272
Regions Financial Corp
Alabama
$4.98M
TC
273
Tsai Capital
New York
$4.97M
LC
274
Lakehouse Capital
Australia
$4.93M
DC
275
Davenport & Co
Virginia
$4.93M