KMX
CARMAX INC · Retail Trade · Market cap $9.0B
Insiders bought $1.0M net in the last 90 days ·0 sellers, 5 buyers· latest Form 4 filed Jun 26, 2026
Insider Buying
$1.6M
reported purchases (SEC code P)
Insider Selling
$0
reported sales (SEC code S)
Unique Insiders
6
in the rolling window
Latest filing
Jun 29, 2026
ONeil Mark F
CARMAX INC (KMX) has 29 SEC Form 4 filings (36 transaction rows) in the rolling window, disclosed by 6 distinct insiders. Most recent filing: Jun 29, 2026.
Inside the rolling window, 6 insiders at CARMAX INC reported 7 open-market purchases totaling $1.6M and no open-market sales. Insiders have net bought $1.0M over the trailing 6 months. The most recent open-market filing is a purchase of 4,800 shares by Director ONeil Mark F, dated Jun 24, 2026, worth $251K.
- Industry:Auto - Dealerships
- CEO:Keith Barr
- Employees:30,048
- HQ:Richmond, VA, US
- IPO:1997-02-04
| Source | |||||||
|---|---|---|---|---|---|---|---|
ONeil Mark FFirst in 9 months | Director | Purchase | 4,800 | $251K | Jun 26 | +20.0% | SEC ↗ |
Shinder MarcellaFirst filing | Director | Purchase | 574 | $30K | Jun 26 | +20.0% | SEC ↗ |
Chawla SonaFirst in 7 months | Director | Purchase | 2,000 | $107K | Jun 26 | +20.0% | SEC ↗ |
| Director | Purchase | 2,500 | $131K | Jun 24 | +24.6% | SEC ↗ | |
Barr KeithFirst filing | President and CEO | Purchase | 9,400 | $498K | Jun 24 | +24.6% | SEC ↗ |
ONeil Mark FFirst filing | Director | Purchase | 10,816 | $500K | Oct 6 | +35.2% | SEC ↗ |
STEENROD MITCHELL DFirst filing | Director | Purchase | 2,000 | $91K | Oct 3 | +36.3% | SEC ↗ |
Congress trading KMX 66 all-time
- DRep. Ro KhannaSale$1,001 - $15,0002026-01-29
- DRep. Ro KhannaSale$1,001 - $15,0002025-10-07
- DRep. Ro KhannaSale$1,001 - $15,0002025-09-08
- DRep. Ro KhannaSale$1,001 - $15,0002025-08-26
- DRep. Ro KhannaPurchase$1,000 - $15,0002025-08-04
- DRep. Ro KhannaSale$1,000 - $15,0002025-08-26
STOCK Act disclosures are filed up to 45 days after the trade. Amount is a disclosed range, not an exact figure.
Frequently asked questions
How many SEC Form 4 insider filings does KMX have?
CARMAX INC (KMX) has 29 SEC Form 4 filings (36 transaction rows) in the rolling 365-day window, disclosed by 6 distinct insiders. Most recent filing: Jun 29, 2026.
When was the most recent SEC Form 4 filing for KMX?
The most recent Form 4 filing for KMX on Tracefour is dated Jun 29, 2026.
What is the net insider flow at KMX over the last 6 months?
Over the trailing 180 days, insiders at KMX have net bought $1.0M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at KMX in the current window?
Inside the rolling window, insiders at KMX bought $1.6M and sold $0 based on SEC Form 4 filings.
Can I get alerts for KMX insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at CARMAX INC (KMX). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
CARMAX INC is in the Retail Trade sector.