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 |
2021-02-26 Sale |
2021-03-02 8:38 pm |
Sirius International Insurance Group Ltd. | SG | Boxer Gene EVP, CSO & Group Gen. Counsel |
105,695 | $0 | $0 | 0 (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 | Boxer Gene General Counsel and Secretary |
481 | $78.73 | 78,572 (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 |
2025-03-01 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 |
2025-02-27 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 |
2024-03-15 Tax Withholding |
2024-03-19 4:16 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Boxer Gene General Counsel and Secretary |
372 | $87.87 | 43,308 (Direct) |
View |
2024-03-01 Tax Withholding |
2024-03-05 4:32 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Boxer Gene General Counsel and Secretary |
1,238 | $87.03 | 43,680 (Direct) |
View |
2024-03-01 Option Award |
2024-03-05 4:32 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Boxer Gene General Counsel and Secretary |
8,694 | $0 | 43,680 (Direct) |
View |
2024-02-22 Option Award |
2024-02-26 8:08 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Boxer Gene General Counsel and Secretary |
18,189 | $0 | 36,224 (Direct) |
View |
2023-03-15 Tax Withholding |
2023-03-17 5:31 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Boxer Gene General Counsel and Secretary |
371 | $67.62 | 18,035 (Direct) |
View |
2023-02-24 Option Award |
2023-02-27 5:05 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Boxer Gene General Counsel and Secretary |
14,139 | $70.73 | 18,406 (Direct) |
View |
Ownership |
2022-04-28 4:20 pm |
N/A N/A |
COSTAR GROUP INC. | CSGP | Boxer Gene General Counsel and Secretary |
0 | $0 | 4,267 (Direct) |
View |