05/12/2025
3:28 PM | CoStar Group (Subject)
KLEIN MICHAEL R (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
05/09/2025
3:45 PM | CoStar Group (Subject)
KLEIN MICHAEL R (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
05/09/2025
7:54 AM | CoStar Group (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
04/30/2025
8:47 PM | CoStar Group (Filer)
| Form DEFA14A | |
04/30/2025
3:38 PM | CoStar Group (Filer)
| Form DEF 14A | |
04/30/2025
3:41 PM | CoStar Group (Filer)
| Form ARS | |
04/23/2025
7:39 PM | BlackRock, Inc. (Filed by)
CoStar Group (Subject)
| Form SCHEDULE 13G/A | |
04/14/2025
3:15 PM | CoStar Group (Issuer)
McCarthy Christine M (Reporting)
| Form 3
Initial statement of beneficial ownership of securities | |
04/14/2025
3:15 PM | CoStar Group (Issuer)
Glaser Rachel C (Reporting)
| Form 3
Initial statement of beneficial ownership of securities | |
04/14/2025
3:15 PM | BERISFORD JOHN L (Reporting)
CoStar Group (Issuer)
| Form 3
Initial statement of beneficial ownership of securities | |
04/07/2025
7:59 AM | CoStar Group (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
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03/18/2025
7:33 PM | CoStar Group (Issuer)
SIMURO FRANK (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/18/2025
7:33 PM | CoStar Group (Issuer)
DESMARAIS MICHAEL J (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/18/2025
7:34 PM | Boxer Gene (Reporting)
CoStar Group (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/18/2025
7:34 PM | Cann Cynthia Cammett (Reporting)
CoStar Group (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/18/2025
7:34 PM | CoStar Group (Issuer)
Ruggles Lisa (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/14/2025
3:47 PM | Cann Cynthia Cammett (Reporting)
CoStar Group (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/07/2025
5:06 PM | CoStar Group (Issuer)
DESMARAIS MICHAEL J (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/07/2025
5:06 PM | CoStar Group (Issuer)
FLORANCE ANDREW C (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/07/2025
5:06 PM | Boxer Gene (Reporting)
CoStar Group (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/07/2025
5:06 PM | Cann Cynthia Cammett (Reporting)
CoStar Group (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/03/2025
6:10 PM | CoStar Group (Issuer)
SIMURO FRANK (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/03/2025
6:10 PM | CoStar Group (Issuer)
FLORANCE ANDREW C (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/03/2025
6:10 PM | Boxer Gene (Reporting)
CoStar Group (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/03/2025
6:10 PM | Cann Cynthia Cammett (Reporting)
CoStar Group (Issuer)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/03/2025
6:10 PM | CoStar Group (Issuer)
SAINT FREDERICK G. (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/03/2025
6:10 PM | CoStar Group (Issuer)
DESMARAIS MICHAEL J (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
03/03/2025
6:11 PM | CoStar Group (Issuer)
Ruggles Lisa (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
02/28/2025
3:04 PM | CoStar Group (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
02/28/2025
3:04 PM | CoStar Group (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
02/24/2025
5:48 PM | CoStar Group (Issuer)
SAINT FREDERICK G. (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
02/24/2025
5:48 PM | CoStar Group (Issuer)
SIMURO FRANK (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
02/24/2025
5:48 PM | CoStar Group (Issuer)
Ruggles Lisa (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
02/24/2025
5:48 PM | CoStar Group (Issuer)
FLORANCE ANDREW C (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
02/24/2025
5:48 PM | CoStar Group (Issuer)
LOWN CHRISTIAN M. (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
02/19/2025
3:56 PM | CoStar Group (Issuer)
SAINT FREDERICK G. (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
02/19/2025
3:56 PM | CoStar Group (Issuer)
FLORANCE ANDREW C (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
02/19/2025
3:57 PM | CoStar Group (Issuer)
Ruggles Lisa (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
02/19/2025
3:57 PM | CoStar Group (Issuer)
SIMURO FRANK (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
12/12/2024
3:16 PM | CoStar Group (Issuer)
KLEIN MICHAEL R (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
12/12/2024
3:16 PM | CoStar Group (Issuer)
Hill John W (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
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12/10/2024
1:37 PM | CoStar Group (Subject)
Hill John W (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
12/02/2024
3:55 PM | CoStar Group (Issuer)
NASSETTA CHRISTOPHER J (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
11/27/2024
5:33 PM | CoStar Group (Issuer)
DESMARAIS MICHAEL J (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
11/27/2024
3:32 PM | CoStar Group (Subject)
NASSETTA CHRISTOPHER J (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
10/28/2024
4:14 PM | CoStar Group (Issuer)
KLEIN MICHAEL R (Reporting)
| Form 4
Statement of changes in beneficial ownership of securities | |
10/25/2024
3:58 PM | CoStar Group (Subject)
KLEIN MICHAEL R (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
10/23/2024
3:52 PM | CoStar Group (Filer)
| Form 10-Q
General form for quarterly reports under Section 13 or 15(d) | |
10/22/2024
3:12 PM | CoStar Group (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
07/30/2024
1:12 PM | CoStar Group (Subject)
Hill John W (Reporting)
| Form 144
Notice of proposed sale of securities pursuant to Rule 144 | |
07/23/2024
3:29 PM | CoStar Group (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
07/18/2024
3:07 PM | Cann Cynthia Cammett (Reporting)
CoStar Group (Issuer)
| Form 3
Initial statement of beneficial ownership of securities | |
06/10/2024
11:16 PM | CoStar Group (Filer)
| Form EFFECT | |
06/07/2024
3:39 PM | CoStar Group (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
05/31/2024
3:01 PM | CoStar Group (Filer)
| Form 8-K
Current report pursuant to Section 13 or 15(d) | |
05/20/2024
9:00 PM | CoStar Group (Filer)
| Form S-4
Registration statement under Securities Act of 1933 | |
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