CarMax, Inc. (KMX) Insider Trading
Over the last 3 months, KMX insiders made 5 open-market buys and 0 sales, a net purchase of $1.0M (SEC Form 4). Multiple insiders bought within days of each other (cluster buying). Over the last 6 months, 307 institutions increased and 467 reduced their position (13F).
Insider Activity
Sentiment
100/100
Buys (3m)
5
Sells (3m)
0
Net (3m)
$1.0M
Insiders buyingCluster buying
Insider trades by month Buys Sells
Dec
Jan
Apr
Jul
Oct
Jun
Context3-month price +37.6%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jun 29, 2026 | Satriano Pietrodirector | Grant | 3,696 | — |
| Jun 29, 2026 | OShaughnessy Robertdirector | Grant | 3,696 | — |
| Jun 29, 2026 | Shinder Marcelladirector | Grant | 3,696 | — |
| Jun 29, 2026 | ONeil Mark Fdirector | Grant | 3,696 | — |
| Jun 29, 2026 | COBB WILLIAM Cdirector | Grant | 3,696 | — |
| Jun 29, 2026 | Chawla Sonadirector | Grant | 3,696 | — |
| Jun 29, 2026 | FOLLIARD THOMAS Jdirector | Grant | 3,696 | — |
| Jun 29, 2026 | Bensen Peter Jdirector | Grant | 3,696 | — |
| Jun 29, 2026 | McCreight David W.director | Grant | 3,696 | — |
| Jun 29, 2026 | KESSLER JAMES FRANCISdirector | Grant | 3,696 | — |
| Jun 26, 2026 | Shinder Marcelladirector | Buy | 574 | $52.01 |
| Jun 26, 2026 | ONeil Mark Fdirector | Buy | 4,800 | $52.36 |
| Jun 26, 2026 | Chawla Sonadirector | Buy | 2,000 | $53.39 |
| Jun 24, 2026 | Barr Keithdirector, officer: President and CEO | Buy | 9,400 | $53.01 |
| Jun 24, 2026 | FOLLIARD THOMAS Jdirector | Option | 14,855 | $51.91 |
| Jun 24, 2026 | FOLLIARD THOMAS Jdirector | Tax | 3,618 | $51.91 |
| Jun 24, 2026 | Bensen Peter Jdirector | Buy | 2,500 | $52.20 |
| May 5, 2026 | Stuckey John M IIIofficer: SVP, Gen Counsel & Secretary | Tax | 357 | $38.53 |
| May 5, 2026 | Wilson Charles Josephofficer: EVP and COO | Tax | 1,015 | $38.53 |
| May 5, 2026 | Shamim Mohammadofficer: EVP and CITO | Tax | 1,015 | $38.53 |
| May 5, 2026 | Daniels Jon Gofficer: EVP, CAF | Tax | 822 | $38.53 |
| May 5, 2026 | Livesay Jill Aofficer: VP, Controller & PAO | Option | 1,799 | — |
| May 5, 2026 | Livesay Jill Aofficer: VP, Controller & PAO | Grant | 5,667 | — |
| May 5, 2026 | Mayor-Mora Enrique Nofficer: EVP & CFO | Tax | 1,015 | $38.53 |
| May 5, 2026 | Cafritz Diane Lofficer: EVP, Chief Innov & People Off | Grant | 22,898 | — |
| May 5, 2026 | Livesay Jill Aofficer: VP, Controller & PAO | Tax | 319 | $38.53 |
| May 5, 2026 | Livesay Jill Aofficer: VP, Controller & PAO | Grant | 8,029 | — |
| May 5, 2026 | Mayor-Mora Enrique Nofficer: EVP & CFO | Grant | 22,898 | — |
| May 5, 2026 | Barr Keithdirector, officer: President and CEO | Grant | 64,114 | — |
| May 5, 2026 | Wilson Charles Josephofficer: EVP and COO | Grant | 22,898 | — |
Source: KMX SEC Form 4 filings, latest Jun 29, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their KMX positions over the last 6 months (SEC Form 13F).
Increased
307
New positions
194
Reduced
467
Sold out
82
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Reduced | 17.3M | May 13, 2026 |
| BlackRock, Inc. | Reduced | 17.1M | Aug 7, 2026 |
| AQR CAPITAL MANAGEMENT LLC | Increased | 10.1M | May 15, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 7.3M | Aug 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 7.3M | May 8, 2026 |
| AQR CAPITAL MANAGEMENT LLC | Reduced | 6.6M | Aug 14, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 6.4M | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 6.4M | May 15, 2026 |
| STARBOARD VALUE LP | New Position | 6.2M | May 15, 2026 |
| SRS Investment Management, LLC | Increased | 5.9M | Aug 14, 2026 |
| TWO SIGMA INVESTMENTS, LP | Increased | 5.8M | Aug 14, 2026 |
| SRS INVESTMENT MANAGEMENT, LLC | Increased | 5.7M | May 15, 2026 |
| TWO SIGMA INVESTMENTS, LP | Increased | 5.4M | May 15, 2026 |
| STATE STREET CORP | Increased | 5.2M | Aug 7, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Increased | 5.0M | Aug 11, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.