ONeil Mark F - Insider Trading & Ownership

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>>
Time period
Insider Trading Transactions for ONeil Mark F
Common stock purchase or sale:
Transaction
Date		Reported
DateTime		CompanySymbolInsider
Relationship		Shares
Traded		Average
Price		Total
Amount		Shares
Owned		Filing
2026-06-24
Purchase		2026-06-26
4:13 pm		CARMAX INCKMXONeil Mark F
Director		9,600$52.36$502,65650,974
(Indirect
Direct)		View
2020-10-16
Purchase		2026-04-14
4:28 pm		CARMAX INCKMXONeil Mark F
Director		191$93.17$17,79555,167
(Indirect
Direct)		View
2025-10-02
Purchase		2025-10-06
4:11 pm		CARMAX INCKMXONeil Mark F
Director		10,816$46.21$499,80724,690
(Direct)		View

Stock options: Exercise, Award, Grant, Conversion
Transaction
Date		Reported
DateTime		Exercisable
Expiration		CompanySymnbolInsider
Relationship		Shares
Traded		Conversion
Price		Shares
Owned		Filing
2026-06-26
Option Award		2026-06-29
5:08 pm		N/A
N/A		CARMAX INCKMXONeil Mark F
Director		3,696$054,670
(Direct)		View

Ownership		2026-04-14
4:28 pm		N/A
N/A		CARMAX INCKMXONeil Mark F
Director		0$055,167
(Indirect)		View
2025-06-30
Option Award		2025-07-02
4:21 pm		N/A
N/A		CARMAX INCKMXONeil Mark F
Director		2,753$013,874
(Direct)		View
2024-07-01
Option Award		2024-07-02
4:24 pm		N/A
N/A		CARMAX INCKMXONeil Mark F
Director		2,598$011,121
(Direct)		View
2023-06-30
Option Award		2023-07-05
6:07 pm		N/A
N/A		CARMAX INCKMXONeil Mark F
Director		2,210$08,523
(Direct)		View
2022-07-01
Option Award		2022-07-05
4:27 pm		N/A
N/A		CARMAX INCKMXONeil Mark F
Director		1,996$06,313
(Direct)		View