MarketPeel
Insider Trading Intelligence
MS

Mitchell D. Steenrod

KMX
DIRECTOR · CARMAX INC · CIK 0001511361
FILING MIX · LIFETIME100%/0%
BUYS
8
SELLS
0
TOTAL VALUE
$176.3K
COMPANIES
1
ACTIVE SINCE
Jun 2020
HOLDINGS NOW
38,330
AVG SELL PX
TRADE KIND
SHOWING 8 / 8
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
2 backtested trades · 8 horizons · 3 pending
Forward-return performance of every backtestable P/S trade by Mitchell D. Steenrod, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d2+0.00%-2.25%+1.22%-3.47%-3.47%
14d2+50.00%-2.38%+1.04%-3.42%-3.42%
30d2+0.00%-7.11%+3.92%-11.04%-11.04%
60d2+50.00%-7.02%+5.71%-12.73%-12.73%
90d2+0.00%-10.23%+8.95%-19.19%-19.19%
180d2+0.00%-20.84%+9.98%-30.83%-30.83%
1y2(1 pending)+0.00%-41.73%+30.59%-72.33%-72.33%
2y2(2 pending)
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
KMX · 38,330 shares · as of Oct 2, 2025
09,58319,16528,74838,33020212022202320242025SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
FLOW · 8 buys / 0 sellsCOVERAGE · 23 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
KMX
CARMAX INC
PURCHASE
2,000$45.57$91.1K38,330Oct 2, 2025Oct 3, 2025View →
KMX
CARMAX INC
PURCHASEGRANT
Stock grant
2,75336,330Jun 30, 2025Jul 2, 2025View →
KMX
CARMAX INC
PURCHASE
1,300$65.49$85.1K33,577Apr 24, 2025Apr 25, 2025View →
KMX
CARMAX INC
PURCHASEGRANT
Stock grant
2,59832,277Jul 1, 2024Jul 2, 2024View →
KMX
CARMAX INC
PURCHASEGRANT
Stock grant
2,21029,679Jun 30, 2023Jul 5, 2023View →
KMX
CARMAX INC
PURCHASEGRANT
Stock grant
1,99627,469Jul 1, 2022Jul 5, 2022View →
KMX
CARMAX INC
PURCHASEGRANT
Stock grant
1,30825,473Jul 2, 2021Jul 7, 2021View →
KMX
CARMAX INC
PURCHASEGRANT
Stock grant
2,02124,165Jun 26, 2020Jun 30, 2020View →
Other insiders · KMX
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About this filer
CIK 0001511361
ROLE
Director
PRIMARY
KMX
COMPANIES
1
ACTIVE SINCE
Jun 2020
MARKETPEEL · /INSIDER/0001511361DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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