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 |
2021-11-22 Purchase |
2021-11-23 4:42 pm |
MARKEL CORP | MKL | GAYNER THOMAS SINNICKSON Co-Chief Executive Officer |
25 | $1,251 | $31,283 | 45,310 (Indirect Direct) |
View |
2021-11-11 Purchase |
2021-11-15 11:39 am |
Graham Holdings Co | GHC | GAYNER THOMAS SINNICKSON Director |
100 | $595.17 | $59,517 | 5,400 (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 |
2021-12-31 Option Award |
2022-01-04 6:30 pm |
N/A N/A |
Colfax CORP | CFX | GAYNER THOMAS SINNICKSON Director |
490 | $0 | 65,060 (Direct) |
View |
2021-12-07 Tax Withholding |
2021-12-09 4:49 pm |
N/A N/A |
MARKEL CORP | MKL | GAYNER THOMAS SINNICKSON Co-Chief Executive Officer |
32 | $1,250 | 45,278 (Direct) |
View |
2021-09-30 Option Award |
2021-10-04 6:00 pm |
N/A N/A |
Colfax CORP | CFX | GAYNER THOMAS SINNICKSON Director |
491 | $0 | 64,570 (Direct) |
View |
2021-06-30 Option Award |
2021-07-01 5:51 pm |
N/A N/A |
Colfax CORP | CFX | GAYNER THOMAS SINNICKSON Director |
492 | $0 | 64,079 (Direct) |
View |
2021-05-21 Option Award |
2021-05-25 5:29 pm |
N/A N/A |
Cable One Inc. | CABO | GAYNER THOMAS SINNICKSON Director |
129 | $0 | 7,189 (Direct) |
View |
2021-05-12 Option Award |
2021-05-14 7:00 pm |
N/A N/A |
Colfax CORP | CFX | GAYNER THOMAS SINNICKSON Director |
3,294 | $0 | 63,587 (Direct) |
View |
2021-03-31 Option Award |
2021-04-06 9:00 pm |
N/A N/A |
Colfax CORP | CFX | GAYNER THOMAS SINNICKSON Director |
486 | $0 | 60,293 (Direct) |
View |
2021-02-16 Option Award(A) |
2021-02-25 4:49 pm |
N/A N/A |
MARKEL CORP | MKL | GAYNER THOMAS SINNICKSON Co-Chief Executive Officer |
1,941 | $0 | 40,110 (Direct) |
View |
2021-02-16 Option Award |
2021-02-18 5:22 pm |
N/A N/A |
MARKEL CORP | MKL | GAYNER THOMAS SINNICKSON Co-Chief Executive Officer |
2,015 | $0 | 45,335 (Direct) |
View |
2020-12-31 Option Award |
2021-01-05 4:51 pm |
N/A N/A |
Colfax CORP | CFX | GAYNER THOMAS SINNICKSON Director |
556 | $0 | 59,807 (Direct) |
View |
2020-09-30 Option Award |
2020-10-02 6:00 pm |
N/A N/A |
Colfax CORP | CFX | GAYNER THOMAS SINNICKSON Director |
610 | $0 | 59,251 (Direct) |
View |
2020-06-30 Option Award |
2020-07-02 6:00 pm |
N/A N/A |
Colfax CORP | CFX | GAYNER THOMAS SINNICKSON Director |
610 | $0 | 58,641 (Direct) |
View |
2020-05-21 Option Award |
2020-05-26 4:00 pm |
2020-05-21 2027-05-21 |
Colfax CORP | CFX | GAYNER THOMAS SINNICKSON Director |
8,467 | $0 | 63,930 (Direct) |
View |
2020-05-15 Option Award |
2020-05-18 06:15 am |
N/A N/A |
Cable One Inc. | CABO | GAYNER THOMAS SINNICKSON Director |
125 | $0 | 7,060 (Direct) |
View |