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 |
2020-09-02 Sale |
2020-09-03 5:03 pm |
COSTAR GROUP INC. | CSGP | Ruggles Lisa Senior VP, Global Research |
7,596 | $870 | $6,608,520 | 16,631 (Direct) |
View |
2020-08-26 Sale |
2020-08-28 4:28 pm |
COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO |
31,168 | $849.91 | $26,489,995 | 122,705 (Direct) |
View |
2020-08-12 Sale |
2020-08-13 4:31 pm |
COSTAR GROUP INC. | CSGP | Linnington Matthew Executive VP, Sales |
2,419 | $826.32 | $1,998,868 | 19,766 (Direct) |
View |
2020-08-04 Sale |
2020-08-05 4:24 pm |
COSTAR GROUP INC. | CSGP | Wheeler Scott T Chief Financial Officer |
12,002 | $826.71 | $9,922,173 | 28,790 (Indirect Direct) |
View |
2020-05-06 Sale |
2020-05-08 4:11 pm |
COSTAR GROUP INC. | CSGP | KLEIN MICHAEL R Director |
15,000 | $639.18 | $9,587,715 | 231,414 (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 |
2020-09-24 Option Award |
2020-09-25 4:24 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | NASSETTA CHRISTOPHER J Director |
242 | $0 | 26,623 (Direct) |
View |
2020-09-24 Option Award |
2020-09-25 4:22 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Glosserman Michael J Director |
240 | $0 | 9,076 (Direct) |
View |
2020-09-02 Exercise |
2020-09-03 5:03 pm |
N/A 2028-02-27 |
COSTAR GROUP INC. | CSGP | Ruggles Lisa Senior VP, Global Research |
4,333 | $0 | 16,631 (Direct) |
View |
2020-09-02 Exercise |
2020-09-03 5:03 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Ruggles Lisa Senior VP, Global Research |
4,333 | $342.13 | 16,631 (Direct) |
View |
2020-08-26 Exercise |
2020-08-28 4:28 pm |
N/A 2025-03-04 |
COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO |
31,168 | $0 | 122,705 (Direct) |
View |
2020-08-26 Exercise |
2020-08-28 4:28 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | FLORANCE ANDREW C President and CEO |
31,168 | $193.69 | 122,705 (Direct) |
View |
2020-08-04 Exercise |
2020-08-05 4:24 pm |
N/A 2027-03-01 |
COSTAR GROUP INC. | CSGP | Wheeler Scott T Chief Financial Officer |
8,300 | $0 | 28,790 (Direct) |
View |
2020-08-04 Exercise |
2020-08-05 4:24 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Wheeler Scott T Chief Financial Officer |
4,700 | $204.91 | 28,790 (Direct) |
View |
2020-08-04 Gift |
2020-08-05 4:24 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Wheeler Scott T Chief Financial Officer |
144 | $0 | 28,790 (Direct) |
View |
2020-08-04 Exercise |
2020-08-05 4:24 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Wheeler Scott T Chief Financial Officer |
3,600 | $342.13 | 28,790 (Direct) |
View |
2020-05-27 Tax Withholding |
2020-05-28 6:11 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Ruggles Lisa Senior VP, Global Research |
27 | $663.99 | 17,727 (Direct) |
View |
2020-05-04 Gift |
2020-05-08 4:11 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | KLEIN MICHAEL R Director |
1,500 | $0 | 231,414 (Direct) |
View |