Thomas Sinnickson Gayner's Net Worth

Thomas Sinnickson Gayner's net worth is estimated to be at least $13,434,600.00 as of 11/23/2024. CoreStreet's estimation of Thomas Sinnickson Gayner's net worth is based on their sale of stock and current holding of stock.

Thomas Sinnickson Gayner is CEO at Markel Corporation. They have executed at least 22 trades of stock as per SEC Form 4 filings. Their most recent trade was for 100 units of MKL stock on 02/02/2024. Their biggest sale was on 02/16/2016 when they sold 5,000 units of Markel Corporation stock for $4,130,150.00. They typically trade 4 times per year.

Total value of insider buys:
  • $9,304,450.00
Total value of insider sells:
  • $4,130,150.00
Most recent insider trade:
  • Feb. 2, 2024

Thomas Sinnickson Gayner's Insider Trading History

Markel CorporationTitleAmountPriceTypeTotal Value
Feb. 2, 2024
CEO100$1,414.74Buy$141,474.00
Nov. 3, 2023
CEO100$1,311.92Buy$131,192.00
Aug. 4, 2023
CEO100$1,479.47Buy$147,947.00
May 2, 2023
CEO50$1,359.93Buy$67,996.50
Feb. 3, 2023
CEO25$1,317.18Buy$32,929.50
Nov. 8, 2022
CEO50$1,230.60Buy$61,530.00
Aug. 4, 2022
CEO50$1,202.46Buy$60,123.00
May 9, 2022
CEO50$1,306.00Buy$65,300.00
Nov. 22, 2021
CEO25$1,251.30Buy$31,282.50
Feb. 16, 2016
CEO5,000$826.03Sell$4,130,150.00
Graham Holdings CoTitleAmountPriceTypeTotal Value
Nov. 9, 2023
Director100$607.24Buy$60,724.00
Sept. 8, 2023
Director100$569.83Buy$56,983.00
May 9, 2023
Director100$581.63Buy$58,163.00
Sept. 16, 2022
Director100$556.15Buy$55,615.00
Nov. 11, 2021
Director100$595.17Buy$59,517.00
Cable One IncTitleAmountPriceTypeTotal Value
March 6, 2023
Director100$709.30Buy$70,930.00
Nov. 14, 2022
Director5,000$714.72Buy$3,573,600.00
Nov. 8, 2022
Director5,000$673.75Buy$3,368,750.00
Sept. 12, 2022
Director500$1,094.74Buy$547,370.00
Aug. 29, 2022
Director500$1,177.75Buy$588,875.00
Aug. 24, 2022
Director50$1,225.00Buy$61,250.00
May 25, 2022
Director50$1,257.97Buy$62,898.50