Costar Group, Inc.

Ownership Transactions Reported by 20 Insiders

Symbol
CSGP on Nasdaq
Industry
Services-Business Services, NEC
Location
1331 L Street, Nw, Washington, DC

Insiders trading volume in the past year

Costar Group, Inc. executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
Michael R. Klein Director $149M Dec 10, 2024
Andrew C. Florance President and CEO, Director $128M Mar 5, 2025
Frank Simuro Chief Technology Officer $38.1M Mar 15, 2025
Scott T. Wheeler Chief Financial Officer $28.6M Apr 26, 2024
Frederick G. Saint President, Marketplaces $26.5M -$6.62M -20% Aug 28, 2025
Christopher J. Nassetta Director $22.2M Nov 27, 2024
Lisa Ruggles Senior VP, Global Operations $15.5M Jun 1, 2025
Christian M. Lown Chief Financial Officer $10.5M Jul 1, 2025
Michael J. Glosserman Director $8.53M Oct 30, 2023
Michael J. Desmarais Chief Human Resources Officer $6.23M Mar 15, 2025
Gene Boxer General Counsel and Secretary $6.19M Mar 15, 2025
Louise S. Sams Director $1.7M Sep 9, 2025
Robert W. Musslewhite Director $1.6M Sep 9, 2025
Cynthia Cammett Cann Chief Accounting Officer $1.6M -$455K -22.2% Nov 13, 2025
Laura Cox Kaplan Director $1.39M Jul 17, 2024
John W. Hill Director $1.25M -$364K -22.5% Nov 13, 2025
Angelique G. Brunner Director $890K Sep 9, 2025
Rachel Glaser Director $275K Sep 9, 2025
Christine M. McCarthy Director $260K Sep 9, 2025
John L. Berisford Director $260K Sep 9, 2025

Recent Insider Transactions by Companies or Individuals for Costar Group, Inc.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.