Insider Transactions Reported by 20 Insiders of COSTAR GROUP, INC.

Symbol
CSGP on Nasdaq
Location
Arlington, VA

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 $148,608,311 10 Dec 2024
ANDREW C. FLORANCE President and CEO, Director $127,553,442 05 Mar 2025
FRANK SIMURO Chief Technology Officer $38,073,749 15 Mar 2025
Scott T. Wheeler Chief Financial Officer $28,627,417 26 Apr 2024
FREDERICK G. SAINT President, Marketplaces $26,475,993 -$6,616,500 -20% 28 Aug 2025
CHRISTOPHER J. NASSETTA Director $22,164,729 27 Nov 2024
Lisa Ruggles Senior VP, Global Operations $15,535,945 01 Jun 2025
CHRISTIAN M. LOWN Chief Financial Officer $10,464,622 01 Jul 2025
Michael J. Glosserman Director $8,530,163 30 Oct 2023
MICHAEL J. DESMARAIS Chief Human Resources Officer $6,228,960 15 Mar 2025
Gene Boxer General Counsel and Secretary $6,185,974 15 Mar 2025
Louise S. Sams Director $1,699,452 09 Sep 2025
Robert W. Musslewhite Director $1,600,334 09 Sep 2025
Cynthia Cammett Cann Chief Accounting Officer $1,596,684 -$455,152 -22% 13 Nov 2025
Laura Cox Kaplan Director $1,393,984 17 Jul 2024
John W. Hill Director $1,252,105 -$154,530 -11% 13 Nov 2025
Angelique G. Brunner Director $890,134 09 Sep 2025
Rachel Glaser Director $275,201 09 Sep 2025
Christine M. McCarthy Director $260,315 09 Sep 2025
JOHN L. BERISFORD Director $260,315 09 Sep 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.