Insider Shareholders with Direct Ownership of Costar Group, Inc. (CSGP)
This section provides a comprehensive overview of the insiders with direct ownership of Costar Group, Inc. (CSGP). You can find detailed information about the size and nature of each insider's ownership stake, as well as the latest updates on their holdings.
COSTAR GROUP, INC. Insider List
| Insider | Adquired | Disposed | Held | # of Trades | Last Transaction |
|---|---|---|---|---|---|
|
Michael R Klein
Director |
14,763 | 467,711 | 1,848,592 $129 Million | 12 |
Dec 10, 2024
Reduced 3.39%
|
|
Andrew C Florance
President and CEO |
1,812,625 | 865,118 | 1,672,832 $116 Million | 28 |
Mar 05, 2025
Added 4.36%
|
|
Frank Simuro
Chief Technology Officer |
399,530 | 214,869 | 483,599 $33.7 Million | 17 |
Mar 15, 2025
Reduced 1.16%
|
|
Scott T Wheeler
Chief Financial Officer |
361,464 | 316,686 | 303,417 $21.1 Million | 31 |
Apr 26, 2024
Reduced 28.8%
|
|
Frederick G. Saint
President, Marketplaces |
284,192 | 226,084 | 293,103 $20.4 Million | 29 |
Aug 28, 2025
Reduced 7.86%
|
|
Christopher J Nassetta
Director |
14,786 | 51,301 | 229,715 $16 Million | 8 |
Nov 27, 2024
Reduced 0.73%
|
|
Lisa Ruggles
Senior VP, Global Operations |
226,652 | 171,885 | 211,201 $14.7 Million | 34 |
Jun 01, 2025
Reduced 0.01%
|
|
Christian M. Lown
Chief Financial Officer |
131,439 | 4,666 | 130,157 $9.06 Million | 3 |
Jul 01, 2025
Reduced 3.46%
|
|
Michael J Glosserman
Director |
10,705 | 0 | 101,465 $7.07 Million | 3 |
Oct 30, 2023
Added 3.71%
|
|
Michael J Desmarais
Chief Human Resources Officer |
69,185 | 36,715 | 79,118 $5.51 Million | 20 |
Mar 15, 2025
Reduced 4.4%
|
|
Gene Boxer
General Counsel and Secretary |
80,411 | 6,106 | 78,572 $5.47 Million | 10 |
Mar 15, 2025
Reduced 0.61%
|
|
Cynthia Cammett Cann
Chief Accounting Officer |
15,086 | 9,476 | 25,052 $1.74 Million | 11 |
Aug 01, 2025
Reduced 2.79%
|
|
John W Hill
Director |
17,756 | 33,460 | 20,481 $1.43 Million | 16 |
Sep 09, 2025
Added 13.43%
|
|
Louise S Sams
Director |
17,089 | 0 | 19,409 $1.35 Million | 5 |
Sep 09, 2025
Added 14.5%
|
|
Robert W Musslewhite
Director |
16,137 | 0 | 18,277 $1.27 Million | 5 |
Sep 09, 2025
Added 14.59%
|
|
Laura Cox Kaplan
Director |
13,575 | 5,102 | 17,835 $1.24 Million | 6 |
Jul 17, 2024
Added 16.22%
|
|
Angelique G. Brunner
Director |
10,166 | 0 | 10,166 $707,960 | 3 |
Sep 09, 2025
Added 23.62%
|
|
Rachel C Glaser
Director |
3,143 | 0 | 3,143 $218,878 | 1 |
Sep 09, 2025
Added 50.0%
|
|
Christine M Mc Carthy
Director |
2,973 | 0 | 2,973 $207,039 | 1 |
Sep 09, 2025
Added 50.0%
|
|
John L Berisford
Director |
2,973 | 0 | 2,973 $207,039 | 1 |
Sep 09, 2025
Added 50.0%
|