Costar Group, Inc. CSGP
We take great care to ensure that the data presented and summarized in this overview for COSTAR GROUP, INC. is accurate and up-to-date, based on a comprehensive analysis of 13F filing forms for institutional ownership and form 4 filings for insider transactions. Please note that this data may differ from other sources and should not be relied upon as the sole basis for investment decisions.
Top Institutions Holding CSGP
View all-
Vanguard Group Inc Valley Forge, PA70.1MShares$4.77 Billion0.09% of portfolio
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Black Rock Inc. New York, NY38.6MShares$2.62 Billion0.07% of portfolio
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Bamco Inc New York, NY19.3MShares$1.31 Billion4.58% of portfolio
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Principal Financial Group Inc Des Moines, IA18.6MShares$1.27 Billion0.85% of portfolio
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State Street Corp Boston, MA18.3MShares$1.24 Billion0.06% of portfolio
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Geode Capital Management, LLC Boston, MA12.6MShares$858 Million0.07% of portfolio
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Chuck Akre Akre Capital Management LLC | Middleburg, Va9.31MShares$633 Million9.01% of portfolio
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Morgan Stanley New York, NY8.54MShares$581 Million0.05% of portfolio
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Baillie Gifford & CO8.24MShares$561 Million0.54% of portfolio
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Massachusetts Financial Services CO Boston, MA7.41MShares$504 Million0.21% of portfolio
Latest Institutional Activity in CSGP
Top Purchases
Top Sells
About CSGP
CoStar Group, Inc. provides information, analytics, and online marketplace services to the commercial real estate, hospitality, residential, and related professionals industries in the United States, Canada, Europe, the Asia Pacific, and Latin America. It offers CoStar Property that provides inventory of office, industrial, retail, multifamily, hospitality, and student housing properties and land; CoStar COMPS, a robust database of comparable commercial real estate sales transactions; CoStar Market Analytics to view and report on aggregated market and submarket trends; and CoStar Tenant, an online business-to-business prospecting and analytical tool that provides tenant information. The company also provides Lease Comps and Analysis, a tool to capture, manage, and maintain lease data; CoStar Lease Analysis; Public Record, a searchable database of commercially-zoned parcels; CoStar Real Estate Manager, a real estate lease administration, portfolio management, and lease accounting compliance software solution; and CoStar Risk Analytics and CoStar Investment. In addition, it offers apartment marketing sites, such as ApartmentFinder.com, ForRent.com, ApartmentHomeLiving.com, WestsideRentals.com, AFTER55.com, CorporateHousing.com, ForRentUniversity.com, Apartamentos.com, and Off Campus Partners; LoopNet Premium Lister; LoopNet Diamond, Platinum, and Gold Ads; LandsofAmerica.com, LandAndFarm.com, and LandWatch.com for rural land for-sale; BizBuySell.com, BizQuest.com, and FindaFranchise.com for operating businesses and franchises for-sale; Ten-X, an online auction platform for commercial real estate; and HomeSnap, an online and mobile software platform, as well as Homes.com, a homes for sale listings site. CoStar Group, Inc. was founded in 1987 and is headquartered in Washington, the District of Columbia.
Insider Transactions at CSGP
Insider Transaction List
View all| Date | Insider | Transaction | Ownership Type | Shares Traded | Value / Price |
|---|---|---|---|---|---|
|
Nov 13
2025
|
Cynthia Cammett Cann Chief Accounting Officer |
SELL
Open market or private sale
|
Direct |
1,841
-7.35%
|
$125,188
$68.79 P/Share
|
|
Nov 13
2025
|
John W Hill Director |
SELL
Open market or private sale
|
Direct |
2,250
-10.99%
|
$153,000
$68.68 P/Share
|
|
Sep 09
2025
|
Angelique G. Brunner Director |
BUY
Grant, award, or other acquisition
|
Direct |
3,143
+23.62%
|
-
|
|
Sep 09
2025
|
Rachel C Glaser Director |
BUY
Grant, award, or other acquisition
|
Direct |
3,143
+50.0%
|
-
|
|
Sep 09
2025
|
Robert W Musslewhite Director |
BUY
Grant, award, or other acquisition
|
Direct |
3,121
+14.59%
|
-
|
|
Sep 09
2025
|
John W Hill Director |
BUY
Grant, award, or other acquisition
|
Direct |
3,177
+13.43%
|
-
|
|
Sep 09
2025
|
John L Berisford Director |
BUY
Grant, award, or other acquisition
|
Direct |
2,973
+50.0%
|
-
|
|
Sep 09
2025
|
Louise S Sams Director |
BUY
Grant, award, or other acquisition
|
Direct |
3,291
+14.5%
|
-
|
|
Sep 09
2025
|
Christine M Mc Carthy Director |
BUY
Grant, award, or other acquisition
|
Direct |
2,973
+50.0%
|
-
|
|
Aug 28
2025
|
Frederick G. Saint President, Marketplaces |
SELL
Open market or private sale
|
Direct |
25,000
-7.86%
|
$2,250,000
$90.33 P/Share
|
|
Aug 01
2025
|
Frederick G. Saint President, Marketplaces |
SELL
Payment of exercise price or tax liability
|
Direct |
1,436
-0.45%
|
$136,420
$95.19 P/Share
|
|
Aug 01
2025
|
Cynthia Cammett Cann Chief Accounting Officer |
SELL
Payment of exercise price or tax liability
|
Direct |
719
-2.79%
|
$68,305
$95.19 P/Share
|
|
Jul 28
2025
|
Cynthia Cammett Cann Chief Accounting Officer |
SELL
Open market or private sale
|
Direct |
2,033
-7.31%
|
$187,036
$92.85 P/Share
|
|
Jul 28
2025
|
Frederick G. Saint President, Marketplaces |
SELL
Open market or private sale
|
Direct |
25,000
-7.26%
|
$2,325,000
$93.23 P/Share
|
|
Jul 01
2025
|
Christian M. Lown Chief Financial Officer |
SELL
Payment of exercise price or tax liability
|
Direct |
4,666
-3.46%
|
$373,280
$80.4 P/Share
|
|
Jun 15
2025
|
Cynthia Cammett Cann Chief Accounting Officer |
SELL
Payment of exercise price or tax liability
|
Direct |
461
-1.63%
|
$37,341
$81.16 P/Share
|
|
Jun 11
2025
|
Frederick G. Saint President, Marketplaces |
SELL
Open market or private sale
|
Direct |
25,000
-6.77%
|
$2,025,000
$81.1 P/Share
|
|
Jun 01
2025
|
Lisa Ruggles Senior VP, Global Operations |
SELL
Payment of exercise price or tax liability
|
Direct |
12
-0.01%
|
$876
$73.56 P/Share
|
|
Mar 15
2025
|
Frank Simuro Chief Technology Officer |
SELL
Payment of exercise price or tax liability
|
Direct |
5,700
-1.16%
|
$444,600
$78.73 P/Share
|
|
Mar 15
2025
|
Michael J Desmarais Chief Human Resources Officer |
SELL
Payment of exercise price or tax liability
|
Direct |
3,641
-4.4%
|
$283,998
$78.73 P/Share
|
Last 12 Months Summary
| Grant, award, or other acquisition | 1.01M shares |
|---|
| Payment of exercise price or tax liability | 179K shares |
|---|---|
| Open market or private sale | 92.8K shares |
| Bona fide gift | 65.1K shares |
| Sale (or disposition) back to the issuer | 48.3K shares |