CARMAX (KMX) stock: insider trades, news & valuation
Strong buyingShare price and insider trades
CARMAX insider trading at a glance (Oct 9, 2026): in the past 12 months, 5 insiders bought $1.3M and 0 sold $0 of KMX stock on the open market, including a cluster buy that began Jun 22, 2026.
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KMX insider buying and selling by quarter
Open-market purchases (green, above the line) and sales (red, below), by trade date.
| Quarter | Bought | Purchases | Sold | Sales |
|---|---|---|---|---|
| Q4 2026 | — | 0 | — | 0 |
| Q3 2026 | — | 0 | — | 0 |
| Q2 2026 | $1.3M | 6 | — | 0 |
| Q1 2026 | — | 0 | — | 0 |
| Q4 2025 | $591K | 2 | — | 0 |
Valuation, profit and volume
Summary
Over the past 12 months, 5 CARMAX INC insiders reported open-market purchases totaling $1.3M, while 0 insiders reported sales totaling $0. The most recent cluster buy began on Jun 22, 2026, when 5 insiders bought a combined $1.3M. Among insiders with enough purchase history to measure, Peter J Bensen (Director) has the highest Insider Score at 55.
Members of Congress who traded KMX
From STOCK Act disclosures. Reported up to 45 days after the trade, in dollar ranges.
| Member | Trade | Traded | Reported | Since trade |
|---|---|---|---|---|
| Gilbert Ray Cisneros, Jr.House · D-CA | Bought $1,001 - $15,000 | Aug 19, 2026 | Sep 10, 2026 | -10.8% |
Insider transactions
Open-market purchases and sales.
| Filed | Insider | Type | Shares | Price | Value | Since | Score |
|---|---|---|---|---|---|---|---|
| Jun 26SEC | Mark F OneilDirector | Buy | 4,80029,490 held (+19%) | $52.36 | $251K | +0.5% | 38 |
| Jun 26SEC | Mark F OneilDirector | Buy | 4,800new position | $52.36 | $251K | +0.5% | 38 |
| Jun 26SEC | Sona ChawlaDirector | Buy | 2,00021,702 held (+10%) | $53.39 | $107K | -1.5% | — |
| Jun 26SEC | Marcella ShinderDirector | Buy | 57424,993 held (+2%) | $52.01 | $30K | +1.2% | — |
| Jun 24SEC | Keith BarrCEO, President | Buy | 9,40033,375 held (+39%) | $53.01 | $498K | -0.8% | — |
| Jun 24SEC | Peter J BensenDirector | Buy | 2,50024,796 held (+11%) | $52.20 | $130K | +0.8% | 55 |
| Oct 6SEC | Mark F OneilDirector | Buy | 10,81624,690 held (+78%) | $46.21 | $500K | +13.8% | 38 |
| Oct 3SEC | Mitchell D SteenrodDirector | Buy | 2,00038,330 held (+6%) | $45.57 | $91K | +15.4% | — |
Insiders at CARMAX INC
| Insider | Bought | Sold | Last filing | Score |
|---|---|---|---|---|
| Mark F OneilDirector | $1.0M | — | Jun 26, 2026 | 38 |
| Keith BarrCEO, President | $498K | — | Jun 24, 2026 | — |
| Peter J BensenDirector | $130K | — | Jun 24, 2026 | 55 |
| Sona ChawlaDirector | $107K | — | Jun 26, 2026 | — |
| Mitchell D SteenrodDirector | $91K | — | Oct 3, 2025 | — |
| Marcella ShinderDirector | $30K | — | Jun 26, 2026 | — |
KMX stock: common questions
Are CARMAX INC insiders buying KMX stock?
In the past 12 months, 5 insiders reported open-market purchases of KMX worth $1.3M. The latest was Director Mark F Oneil bought $251K of KMX at $52.36.
Are CARMAX INC insiders selling KMX stock?
0 insiders reported sales worth $0 over the same period.
Where does this data come from?
Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.
What is KMX's 52-week range?
Over the past year KMX has traded between $30.88 and $64.22. It last closed at $52.61 on Oct 9, 2026.