CoStar Group, Inc.

NasdaqGS:CSGP Stock Report

Market Cap: US$33.7b

CoStar Group Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGS:CSGP Recent Insider Transactions by Companies or Individuals
DateValueNameEntityRoleSharesMax Price
11 Jun 25SellUS$2,027,500Frederick SaintIndividual25,000US$81.10
10 Mar 25SellUS$334,259Cynthia CannIndividual4,259US$79.90
10 Dec 24SellUS$209,939John HillIndividual2,735US$76.76
27 Nov 24SellUS$135,136Christopher NassettaIndividual1,681US$80.39
26 Nov 24SellUS$439,340Michael DesmaraisIndividual5,500US$79.88
25 Oct 24BuyUS$1,099,966Andrew FloranceIndividual14,731.03US$74.67
25 Oct 24SellUS$5,350,269Michael KleinIndividual71,633US$74.69
30 Jul 24SellUS$103,562John HillIndividual1,325US$78.16

Insider Trading Volume

Insider Buying: CSGP insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of CSGP?
Owner TypeNumber of SharesOwnership Percentage
State or Government362,1410.0825%
Individual Insiders5,287,9911.2%
Institutions433,235,57898.7%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 69.5% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
16.2%
The Vanguard Group, Inc.
68,426,711US$5.5b4.12%0.08%
8.88%
BlackRock, Inc.
37,455,232US$3.0b-1.73%0.05%
4.51%
Baron Capital Group, Inc.
19,032,522US$1.5b-0.89%3.83%
4.51%
Principal Global Investors, LLC
19,007,873US$1.5b-1.07%0.75%
4.29%
Capital Research and Management Company
18,111,468US$1.4b3.86%0.07%
4.17%
State Street Global Advisors, Inc.
17,574,429US$1.4b3.19%0.05%
2.86%
Geode Capital Management, LLC
12,067,436US$964.1m5.16%0.06%
2.21%
Akre Capital Management, LLC
9,313,592US$744.1m0%5.8%
2%
Baillie Gifford & Co.
8,436,199US$674.0m6.63%0.3%
1.77%
T. Rowe Price Group, Inc.
7,461,039US$596.1m-2.75%0.05%
1.76%
Mizuho Financial Group, Inc., Asset Management Arm
7,435,017US$594.0m19,000%1.72%
1.73%
UBS Asset Management AG
7,290,565US$582.4m75.6%0.05%
1.57%
Massachusetts Financial Services Company
6,619,472US$528.8m-6.69%0.12%
1.56%
Polen Capital Management, LLC
6,601,800US$527.4m1.61%1.55%
1.45%
Macquarie Investment Management Business Trust
6,099,590US$487.3m-16.2%0.63%
1.3%
BNY Asset Management
5,464,774US$436.6m-0.28%0.08%
1.29%
Norges Bank Investment Management
5,458,231US$436.1m0%0.03%
1.29%
Morgan Stanley, Investment Banking and Brokerage Investments
5,434,294US$434.1m184%0.05%
1.15%
Vulcan Value Partners, LLC
4,833,477US$386.1m-5.22%5.58%
0.95%
Northern Trust Global Investments
4,027,534US$321.8m0.86%0.04%
0.88%
Invesco Capital Management LLC
3,699,812US$295.6m0.91%0.1%
0.83%
TOMS Capital Investment Management LP
3,508,000US$280.3m0%19.26%
0.81%
Amundi Asset Management SAS
3,400,733US$271.7m21%0.05%
0.77%
Tiger Global Management, LLC
3,245,109US$259.3m0%0.83%
0.76%
Bank of America Corporation, Asset Management Arm
3,222,427US$257.4m309%0.08%

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2025/06/18 05:50
End of Day Share Price 2025/06/18 00:00
Earnings2025/03/31
Annual Earnings2024/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

PackageDataTimeframeExample US Source *
Company Financials10 years
  • Income statement
  • Cash flow statement
  • Balance sheet
Analyst Consensus Estimates+3 years
  • Forecast financials
  • Analyst price targets
Market Prices30 years
  • Stock prices
  • Dividends, Splits and Actions
Ownership10 years
  • Top shareholders
  • Insider trading
Management10 years
  • Leadership team
  • Board of directors
Key Developments10 years
  • Company announcements

* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

CoStar Group, Inc. is covered by 27 analysts. 17 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

AnalystInstitution
Jeffrey MeulerBaird
Jeffrey SilberBMO Capital Markets Equity Research
Curtis NagleBofA Global Research