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CarMax stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+66.7% to $51.48
CarMax (KMX) stock rose 67% over the last 252 sessions, to $51.48. On the way it reported 0 quarters, its insiders filed 5 open-market trades, and the company filed 10 material 8-Ks. Each is marked on the price and listed with what the stock did next.
Each mark, and what followed
| Date | Kind | What | Next session | 5 sessions | 21 sessions |
|---|---|---|---|---|---|
| Oct 19, 2026 | 8-K | Directors and officers: departures, appointments, pay | +4.1% (+3.8% vs SPY) | +1.8% (+2.0% vs SPY) | — |
| Jul 31, 2026 | 8-K | Directors and officers: departures, appointments, pay | +2.0% (+0.6% vs SPY) | +1.6% (−1.9% vs SPY) | +6.9% (+4.2% vs SPY) |
| Jun 25, 2026 | Insider buy | Shinder Marcella bought $30K | +4.1% (+3.9% vs SPY) | +2.0% (+0.3% vs SPY) | +13.8% (+13.0% vs SPY) |
| Jun 25, 2026 | Insider buy | Chawla Sona bought $107K | +4.1% (+3.9% vs SPY) | +2.0% (+0.3% vs SPY) | +13.8% (+13.0% vs SPY) |
| Jun 24, 2026 | 8-K | Directors and officers: departures, appointments, pay | +4.1% (+3.9% vs SPY) | +2.0% (+0.3% vs SPY) | +13.8% (+13.0% vs SPY) |
| Jun 24, 2026 | Insider buy | ONeil Mark F bought $503K | −2.2% (−2.1% vs SPY) | +1.9% (+0.1% vs SPY) | +11.8% (+11.2% vs SPY) |
| Jun 22, 2026 | Insider buy | Bensen Peter J bought $130K | −2.4% (−2.1% vs SPY) | −1.7% (+0.7% vs SPY) | +7.1% (+6.9% vs SPY) |
| Jun 22, 2026 | Insider buy | Barr Keith bought $498K | −2.4% (−2.1% vs SPY) | −1.7% (+0.7% vs SPY) | +7.1% (+6.9% vs SPY) |
| Jun 17, 2026 | 8-K | New debt or off-balance-sheet obligation | −9.4% (−8.2% vs SPY) | −2.6% (−0.5% vs SPY) | +9.6% (+10.3% vs SPY) |
| Jun 8, 2026 | 8-K | Directors and officers: departures, appointments, pay | +1.1% (+1.4% vs SPY) | +9.5% (+7.4% vs SPY) | +7.1% (+5.2% vs SPY) |
| May 12, 2026 | 8-K | Directors and officers: departures, appointments, pay | −3.0% (−3.6% vs SPY) | −5.2% (−4.6% vs SPY) | +30.0% (+30.0% vs SPY) |
| Apr 9, 2026 | 8-K | Directors and officers: departures, appointments, pay | +3.0% (+3.1% vs SPY) | −11.3% (−14.4% vs SPY) | −11.7% (−19.8% vs SPY) |
| Mar 2, 2026 | 8-K | Directors and officers: departures, appointments, pay | +0.1% (+1.0% vs SPY) | +1.6% (+2.8% vs SPY) | −0.5% (+4.6% vs SPY) |
| Feb 12, 2026 | 8-K | Directors and officers: departures, appointments, pay | −11.2% (−9.6% vs SPY) | −2.7% (−1.6% vs SPY) | −9.1% (−4.6% vs SPY) |
| Nov 6, 2025 | 8-K | Directors and officers: departures, appointments, pay | −27.9% (−26.8% vs SPY) | −17.0% (−17.9% vs SPY) | −5.0% (−6.2% vs SPY) |
Insiders’ record here
In the year on the chart, CarMax's insiders reported 5 open-market buys ($1.3M) and 0 sales ($0). Of the 5 old enough to score, 5 were followed by the stock doing what the trade implied over the next 63 sessions (beating SPY after a buy, lagging it after a sale); the median excess return after a buy was +6.5% and after a sale —.
Across the whole universe (19,782 scored trades), insider buys beat the market 46% of the time and sales were followed by a lagging stock 61% of the time; buys of $1M or more 39%. Every pattern →
What this kind of 8-K usually did
| Item | 8-Ks | Next session, median | Up next session | 21 sessions, median | Typical size |
|---|---|---|---|---|---|
| 5.02 Directors and officers: departures, appointments, pay | 39,174 | −0.1% | 48% | +0.7% | ±1.4% |
| 2.03 New debt or off-balance-sheet obligation | 13,268 | 0.0% | 50% | +1.2% | ±1.3% |
Across every company in the move-odds universe, measured from the close before the filing. Every 8-K item ranked →
CarMax: every quarter → Live insider trades →
Prices are daily closes; filings and trades are as filed with the SEC (Form 4 within two business days of the trade, 8-K within four of the event). Moves after a mark are the stock's close-to-close change and the same for SPY; they describe the record, not what the next one will do. Not investment advice.