CarMax sells, finances, and services used and new cars through a chain of over about 260 retail stores. It was formed in 1993 as a unit of Circuit City and spun off into an independent company in late 2002. Used-vehicle sales were 80% of fiscal 2026 revenue and wholesale about 17%, with the remaining portion composed of extended service plans and repair. In fiscal 2026, the company retailed and wholesaled 780,684 and 538,203 used vehicles, respectively. CarMax is the largest used-vehicle retailer in the US, but still estimates that it had only about 3.6% US market share of vehicles zero to 10 years old in calendar 2025. CarMax is based in Richmond, Virginia.
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market purchase | 6 | 24,074 | $1.27M |
| Grant or award | 10 | 36,960 | |
| Option exercise | 2 | 29,710 | |
| Tax withholding / forfeiture | 1 | 3,618 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
64 Form 4 filings on record, the earliest from Dec 26, 2024, newest first. Filing history page 1 of 3.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Grant or award | Common Stock | 3,696 | $0.00 | - | ||
| Grant or award | Common Stock | 3,696 | $0.00 | - | ||
| William C. Cobb - Director | Grant or award | Common Stock | 3,696 | $0.00 | - | |
| Mark F. Oneil - Director | Grant or award | Common Stock | 3,696 | $0.00 | - | |
| Grant or award | Common Stock | 3,696 | $0.00 | - | ||
| Grant or award | Common Stock | 3,696 | $0.00 | - | ||
| Peter J. Bensen - Director | Grant or award | Common Stock | 3,696 | $0.00 | - | |
| Grant or award | Common Stock | 3,696 | $0.00 | - | ||
| Pietro Satriano - Director | Grant or award | Common Stock | 3,696 | $0.00 | - | |
| Grant or award | Common Stock | 3,696 | $0.00 | - | ||
| Open-market purchase | Common Stock | 2,000 | $53.39 | $107K | ||
| Open-market purchase | Common Stock | 574 | $52.01 | $30K | ||
| Mark F. Oneil - Director | Open-market purchase | Common Stock | 4,800 | $52.36 | $251K | |
| Mark F. Oneil - Director | Open-market purchase | Common Stock | 4,800 | $52.36 | $251K | |
| Option exercise | Common Stock | 14,855 | $51.91 | $771K | ||
| Tax withholding / forfeiture | Common Stock | 3,618 | $51.91 | $188K | ||
| Option exercise | Restricted Stock Units | 14,855 | $0.00 | - | ||
| Peter J. Bensen - Director | Open-market purchase | Common Stock | 2,500 | $52.20 | $131K | |
| Keith Barr - Officer | Open-market purchase | Common Stock | 9,400 | $53.01 | $498K | |
| Enrique N. Mayor-Mora - Officer | Tax withholding / forfeiture | Common Stock | 1,015 | $38.53 | $39K | |
| Enrique N. Mayor-Mora - Officer | Grant or award | Restricted Stock Units | 22,898 | $0.00 | - | |
| Jon G. Daniels - Officer | Tax withholding / forfeiture | Common Stock | 822 | $38.53 | $32K | |
| Jon G. Daniels - Officer | Grant or award | Restricted Stock Units | 14,655 | $0.00 | - | |
| Tax withholding / forfeiture | Common Stock | 1,015 | $38.53 | $39K | ||
| Grant or award | Restricted Stock Units | 22,898 | $0.00 | - | ||
| Tax withholding / forfeiture | Common Stock | 357 | $38.53 | $14K | ||
| Option exercise | Common Stock | 1,183 | - | - | ||
| Option exercise | Restricted Stock Units | 2,009 | $0.00 | - | ||
| Grant or award | Restricted Stock Units | 10,075 | $0.00 | - | ||
| Charles Joseph Wilson - Officer | Tax withholding / forfeiture | Common Stock | 1,015 | $38.53 | $39K | |
| Charles Joseph Wilson - Officer | Grant or award | Restricted Stock Units | 22,898 | $0.00 | - | |
| Mohammad Shamim - Officer | Tax withholding / forfeiture | Common Stock | 1,015 | $38.53 | $39K | |
| Mohammad Shamim - Officer | Grant or award | Restricted Stock Units | 16,944 | $0.00 | - | |
| Keith Barr - Officer | Grant or award | Restricted Stock Units | 64,114 | $0.00 | - | |
| Jill A. Livesay - Officer | Tax withholding / forfeiture | Common Stock | 319 | $38.53 | $12K | |
| Jill A. Livesay - Officer | Option exercise | Common Stock | 1,059 | - | - | |
| Jill A. Livesay - Officer | Option exercise | Restricted Stock Units | 1,799 | $0.00 | - | |
| Jill A. Livesay - Officer | Grant or award | Restricted Stock Units | 5,667 | $0.00 | - | |
| Jill A. Livesay - Officer | Grant or award | Restricted Stock Units | 8,029 | - | - | |
| Tyler Tuite - Officer | Option exercise | Restricted Stock Units | 986 | $0.00 | - | |
| Tyler Tuite - Officer | Option exercise | Restricted Stock Units | 308 | $0.00 | - | |
| Tyler Tuite - Officer | Option exercise | Common Stock | 611 | - | - | |
| Tyler Tuite - Officer | Option exercise | Common Stock | 195 | - | - | |
| Option exercise | Common Stock | 30,558 | $41.71 | $1.27M | ||
| Tax withholding / forfeiture | Common Stock | 11,423 | $41.71 | $476K | ||
| Option exercise | Restricted Stock Units | 30,558 | $0.00 | - | ||
| Keith Barr - Officer | Grant or award | Common Stock | 23,975 | $0.00 | - | |
| Keith Barr - Officer | Grant or award | Stock Options (Right to Buy) | 54,025 | $0.00 | - | |
| Mark F. Oneil - Director | Open-market purchase | Common Stock | 10,816 | $46.21 | $500K | |
| Open-market purchase | Common Stock | 2,000 | $45.57 | $91K | ||
| Gift | Common Stock | 70 | $0.00 | - |
CARMAX INC (KMX) had 16 insider filings in the last 90 days, with the most recent on 2026-06-29. The full record for KMX runs to 64 Form 4 filings, the earliest from 2024-12-26. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
6 insider purchases of KMX were filed in the last 90 days, totaling $1.27M.
No insider sales of KMX were filed in the last 90 days. 7 sales are on record for this company.
This page tracks KMX Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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