Insider Transactions in Q3 2025 at Costar Group, Inc. (CSGP)
Insider Transaction List (Q3 2025)
| Date | Insider | Transaction | Ownership Type | Shares Traded | Value / Price |
|---|---|---|---|---|---|
|
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
|