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.
"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 |
2022-08-05 Sale | 2022-08-09 7:39 pm | COSTAR GROUP Inc | CSGP | KLEIN MICHAEL R Director | 150,000 | $72.42 | $10,863,000 | 2,074,767 (Direct) | View |
2020-12-09 Sale | 2020-12-11 4:31 pm | TUTOR PERINI CORP | TPC | KLEIN MICHAEL R Director | 50,000 | $13.38 | $669,000 | 317,389 (Direct) | View |
2020-12-04 Sale | 2020-12-08 7:31 pm | TUTOR PERINI CORP | TPC | KLEIN MICHAEL R Director | 259,244 | $13.13 | $3,403,874 | 367,389 (Direct) | View |
2020-05-18 Purchase | 2020-05-20 4:24 pm | TUTOR PERINI CORP | TPC | KLEIN MICHAEL R Director | 150,000 | $7.76 | $1,164,000 | 599,890 (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 |
2018-08-06 Sale | 2018-08-07 4:29 pm | COSTAR GROUP INC | CSGP | KLEIN MICHAEL R Director | 15,000 | $420.69 | $6,310,350 | 264,729 (Direct) | View |
2018-03-22 Sale | 2018-03-23 4:23 pm | COSTAR GROUP INC | CSGP | KLEIN MICHAEL R Director | 3,000 | $361.61 | $1,084,830 | 289,729 (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 |
2022-05-18 Option Award | 2022-05-20 5:07 pm | N/A N/A | TUTOR PERINI CORP | TPC | KLEIN MICHAEL R Director | 22,504 | $0 | 349,496 (Direct) | View |
2021-09-15 Gift | 2021-09-17 4:14 pm | N/A N/A | COSTAR GROUP Inc | CSGP | KLEIN MICHAEL R Director | 94,820 | $0 | 2,224,767 (Direct) | View |
2021-09-15 Option Award | 2021-09-17 4:14 pm | N/A N/A | COSTAR GROUP Inc | CSGP | KLEIN MICHAEL R Director | 3,047 | $88.95 | 2,224,767 (Direct) | View |
2021-05-19 Option Award | 2021-05-21 5:33 pm | N/A N/A | TUTOR PERINI CORP | TPC | KLEIN MICHAEL R Director | 9,603 | $0 | 326,992 (Direct) | View |
2020-09-24 Option Award | 2020-09-25 4:27 pm | N/A N/A | COSTAR GROUP Inc | CSGP | KLEIN MICHAEL R Director | 240 | $0 | 231,654 (Direct) | View |
2020-05-20 Option Award | 2020-05-22 6:00 pm | N/A N/A | TUTOR PERINI CORP | TPC | KLEIN MICHAEL R Director | 26,743 | $0 | 626,633 (Direct) | View |
2020-05-06 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 |
2020-03-04 Gift | 2020-03-05 4:49 pm | N/A N/A | COSTAR GROUP Inc | CSGP | KLEIN MICHAEL R Director | 5,532 | $0 | 247,914 (Direct) | View |
2019-09-19 Gift | 2019-09-23 4:42 pm | N/A N/A | COSTAR GROUP Inc | CSGP | KLEIN MICHAEL R Director | 12,078 | $0 | 253,446 (Direct) | View |
2019-09-19 Option Award | 2019-09-23 4:42 pm | N/A N/A | COSTAR GROUP Inc | CSGP | KLEIN MICHAEL R Director | 328 | $0 | 253,446 (Direct) | View |
2019-05-22 Option Award | 2019-05-24 4:52 pm | N/A N/A | TUTOR PERINI CORP | TPC | KLEIN MICHAEL R Director | 14,630 | $0 | 449,890 (Direct) | View |
2018-09-20 Option Award | 2018-09-24 4:31 pm | N/A N/A | COSTAR GROUP INC | CSGP | KLEIN MICHAEL R Director | 467 | $0 | 265,196 (Direct) | View |
2018-08-06 Gift | 2018-08-07 4:29 pm | N/A N/A | COSTAR GROUP INC | CSGP | KLEIN MICHAEL R Director | 10,000 | $0 | 264,729 (Direct) | View |
2018-05-31 Option Award | 2018-05-31 5:45 pm | N/A N/A | TUTOR PERINI CORP | TPC | KLEIN MICHAEL R Director | 11,557 | $0 | 435,260 (Direct) | View |
2018-02-26 Gift | 2018-03-01 4:28 pm | N/A N/A | COSTAR GROUP INC | CSGP | KLEIN MICHAEL R Director | 18,453 | $0 | 292,729 (Direct) | View |
2017-09-13 Option Award | 2017-09-14 5:48 pm | N/A N/A | COSTAR GROUP INC | CSGP | KLEIN MICHAEL R Director | 713 | $0 | 311,182 (Direct) | View |