Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
Common stock purchase or sale:
| Transaction Date |
Reported DateTime |
Company | Symbol | Insider Relationship |
Shares Traded |
Average Price |
Total Amount |
Shares Owned |
Filing |
| 2024-07-31 Sale |
2025-03-14 4:47 pm |
COSTAR GROUP INC. | CSGP | Cann Cynthia Cammett Chief Accounting Officer |
4,259 | $78.48 | $334,259 | 29,456 (Direct) |
View |
| 2025-02-13 Sale |
2025-02-24 6:48 pm |
COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO |
28,896 | $0 | $0 | 1,751,896 (Direct) |
View |
| 2025-02-13 Sale |
2025-02-24 6:48 pm |
COSTAR GROUP INC. | CSGP | Ruggles Lisa Senior VP, Global Operations |
6,452 | $0 | $0 | 237,081 (Direct) |
View |
| 2025-02-13 Sale |
2025-02-24 6:48 pm |
COSTAR GROUP INC. | CSGP | SIMURO FRANK Chief Technology Officer |
6,452 | $0 | $0 | 534,731 (Direct) |
View |
| 2025-02-13 Sale |
2025-02-24 6:48 pm |
COSTAR GROUP INC. | CSGP | SAINT FREDERICK G. President, Marketplaces |
6,452 | $0 | $0 | 402,391 (Direct) |
View |
| 2024-12-10 Sale |
2024-12-12 4:16 pm |
COSTAR GROUP INC. | CSGP | Hill John W Director |
2,735 | $76.76 | $209,939 | 17,304 (Direct) |
View |
| 2024-11-27 Sale |
2024-12-02 4:55 pm |
COSTAR GROUP INC. | CSGP | NASSETTA CHRISTOPHER J Director |
1,681 | $80.39 | $135,136 | 275,715 (Indirect Direct) |
View |
| 2024-11-26 Sale |
2024-11-27 6:33 pm |
COSTAR GROUP INC. | CSGP | DESMARAIS MICHAEL J Chief Human Resources Officer |
5,500 | $79.88 | $439,340 | 58,798 (Direct) |
View |
| 2024-10-25 Sale |
2024-10-28 5:14 pm |
COSTAR GROUP INC. | CSGP | KLEIN MICHAEL R Director |
71,633 | $74.69 | $5,350,269 | 1,913,501 (Direct) |
View |
| 2024-10-25 Purchase |
2024-10-28 5:13 pm |
COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO |
14,731 | $74.67 | $1,099,966 | 1,263,098 (Direct) |
View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date |
Reported DateTime |
Exercisable Expiration |
Company | Symnbol | Insider Relationship |
Shares Traded |
Conversion Price |
Shares Owned |
Filing |
| 2025-03-15 Tax Withholding |
2025-03-18 8:34 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Ruggles Lisa Senior VP, Global Operations |
1,958 | $78.73 | 211,213 (Direct) |
View |
| 2025-03-15 Tax Withholding |
2025-03-18 8:34 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Cann Cynthia Cammett Chief Accounting Officer |
1,191 | $78.73 | 28,265 (Direct) |
View |
| 2025-03-15 Tax Withholding |
2025-03-18 8:34 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Boxer Gene General Counsel and Secretary |
481 | $78.73 | 78,572 (Direct) |
View |
| 2025-03-15 Tax Withholding |
2025-03-18 8:33 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | DESMARAIS MICHAEL J Chief Human Resources Officer |
3,641 | $78.73 | 79,118 (Direct) |
View |
| 2025-03-15 Tax Withholding |
2025-03-18 8:33 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | SIMURO FRANK Chief Technology Officer |
5,700 | $78.73 | 483,599 (Direct) |
View |
| 2025-03-05 Option Award |
2025-03-07 6:06 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Cann Cynthia Cammett Chief Accounting Officer |
1,498 | $0 | 33,715 (Direct) |
View |
| 2025-03-05 Option Award |
2025-03-07 6:06 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Boxer Gene General Counsel and Secretary |
12,492 | $0 | 79,053 (Direct) |
View |
| 2025-03-05 Option Award |
2025-03-07 6:06 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO |
76,232 | $0 | 1,672,832 (Direct) |
View |
| 2025-03-05 Option Award |
2025-03-07 6:06 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | DESMARAIS MICHAEL J Chief Human Resources Officer |
9,026 | $0 | 82,759 (Direct) |
View |
| 2025-03-01 Tax Withholding |
2025-03-03 7:11 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Ruggles Lisa Senior VP, Global Operations |
7,410 | $76.25 | 213,171 (Direct) |
View |
| 2025-02-27 Option Award |
2025-03-03 7:10 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | DESMARAIS MICHAEL J Chief Human Resources Officer |
18,828 | $0 | 73,733 (Direct) |
View |
| 2025-03-01 Tax Withholding |
2025-03-03 7:10 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | DESMARAIS MICHAEL J Chief Human Resources Officer |
3,893 | $76.25 | 73,733 (Direct) |
View |
| 2025-03-01 Tax Withholding |
2025-03-03 7:10 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | SAINT FREDERICK G. President, Marketplaces |
8,252 | $76.25 | 369,539 (Direct) |
View |
| 2025-02-27 Option Award |
2025-03-03 7:10 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Cann Cynthia Cammett Chief Accounting Officer |
4,035 | $0 | 32,217 (Direct) |
View |
| 2025-03-01 Tax Withholding |
2025-03-03 7:10 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Cann Cynthia Cammett Chief Accounting Officer |
813 | $76.25 | 32,217 (Direct) |
View |
| 2025-02-27 Option Award |
2025-03-03 7:10 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Boxer Gene General Counsel and Secretary |
26,897 | $0 | 66,561 (Direct) |
View |
| 2025-03-01 Tax Withholding |
2025-03-03 7:10 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Boxer Gene General Counsel and Secretary |
3,644 | $76.25 | 66,561 (Direct) |
View |
| 2025-03-01 Tax Withholding |
2025-03-03 7:10 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO |
41,296 | $76.25 | 1,596,600 (Direct) |
View |
| 2025-03-01 Tax Withholding |
2025-03-03 7:10 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | SIMURO FRANK Chief Technology Officer |
12,432 | $76.25 | 489,299 (Direct) |
View |
| 2025-02-20 Option Award |
2025-02-24 6:48 pm |
N/A 2035-02-19 |
COSTAR GROUP INC. | CSGP | LOWN CHRISTIAN M. Chief Financial Officer |
122,200 | $0 | 159,423 (Direct) |
View |
| 2025-02-20 Option Award |
2025-02-24 6:48 pm |
N/A 2035-02-19 |
COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO |
565,440 | $0 | 1,751,896 (Direct) |
View |
| 2025-02-13 Tax Withholding |
2025-02-24 6:48 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO |
33,511 | $73.27 | 1,751,896 (Direct) |
View |
| 2025-02-20 Option Award |
2025-02-24 6:48 pm |
N/A 2035-02-19 |
COSTAR GROUP INC. | CSGP | Ruggles Lisa Senior VP, Global Operations |
81,940 | $0 | 237,081 (Direct) |
View |
| 2025-02-13 Tax Withholding |
2025-02-24 6:48 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Ruggles Lisa Senior VP, Global Operations |
7,481 | $73.27 | 237,081 (Direct) |
View |
| 2025-02-20 Option Award |
2025-02-24 6:48 pm |
N/A 2035-02-19 |
COSTAR GROUP INC. | CSGP | SIMURO FRANK Chief Technology Officer |
163,640 | $0 | 534,731 (Direct) |
View |
| 2025-02-13 Tax Withholding |
2025-02-24 6:48 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | SIMURO FRANK Chief Technology Officer |
7,476 | $73.27 | 534,731 (Direct) |
View |
| 2025-02-20 Option Award |
2025-02-24 6:48 pm |
N/A 2035-02-19 |
COSTAR GROUP INC. | CSGP | SAINT FREDERICK G. President, Marketplaces |
122,200 | $0 | 402,391 (Direct) |
View |
| 2025-02-13 Tax Withholding |
2025-02-24 6:48 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | SAINT FREDERICK G. President, Marketplaces |
6,602 | $73.27 | 402,391 (Direct) |
View |
| 2025-02-15 Tax Withholding |
2025-02-19 4:57 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | SIMURO FRANK Chief Technology Officer |
5,485 | $74.06 | 385,019 (Direct) |
View |
| 2025-02-15 Tax Withholding |
2025-02-19 4:57 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Ruggles Lisa Senior VP, Global Operations |
3,531 | $74.06 | 169,074 (Direct) |
View |
| 2025-02-15 Tax Withholding |
2025-02-19 4:56 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO |
14,235 | $74.06 | 1,248,863 (Direct) |
View |
| 2025-02-15 Tax Withholding |
2025-02-19 4:56 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | SAINT FREDERICK G. President, Marketplaces |
2,349 | $74.06 | 293,245 (Direct) |
View |
| 2024-12-10 Gift |
2024-12-12 4:16 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Hill John W Director |
195 | $0 | 17,304 (Direct) |
View |
| 2024-12-10 Gift |
2024-12-12 4:16 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | KLEIN MICHAEL R Director |
64,909 | $0 | 1,848,592 (Direct) |
View |
| 2024-10-25 Gift |
2024-10-28 5:14 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | KLEIN MICHAEL R Director |
5,872 | $0 | 1,913,501 (Direct) |
View |
| 2024-07-17 Option Award |
2024-08-05 4:14 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | KLEIN MICHAEL R Director |
3,781 | $0 | 1,991,006 (Direct) |
View |
| 2024-07-17 Option Award |
2024-08-05 4:14 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Brunner Angelique G. Director |
3,491 | $0 | 7,023 (Direct) |
View |
| 2024-07-17 Option Award |
2024-08-05 4:13 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Sams Louise S Director |
3,491 | $0 | 16,118 (Direct) |
View |
| 2024-07-17 Option Award |
2024-08-05 4:13 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Musslewhite Robert W Director |
3,293 | $0 | 15,156 (Direct) |
View |
| 2024-07-17 Option Award |
2024-08-05 4:13 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Kaplan Laura Cox Director |
3,452 | $0 | 17,835 (Direct) |
View |