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Insider Trading Intelligence
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RB

Ronald E. Blaylock

KMX
DIRECTOR · CARMAX INC · CIK 0001214686
FILING MIX · LIFETIME89%/11%
BUYS
31
SELLS
4
TOTAL VALUE
$4.97M
COMPANIES
4
ACTIVE SINCE
Mar 2020
HOLDINGS NOW
308,964
AVG SELL PX
$112.86
TRADE KIND
SHOWING 35 / 35
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
9 backtested trades · 8 horizons · 1 pending
Forward-return performance of every backtestable P/S trade by Ronald E. Blaylock, 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
7d9+11.11%+1.04%+1.07%-0.02%-1.01%—
14d9+77.78%+2.58%+0.81%+1.76%+0.01%—
30d9+22.22%-1.03%+1.98%-3.02%-7.44%—
60d9+0.00%-2.00%+1.10%-3.10%-5.99%—
90d9+0.00%-2.14%+3.43%-5.58%-5.61%—
180d9+11.11%-3.95%+14.24%-18.19%-21.69%—
1y9+88.89%+18.20%+27.67%-9.47%-11.75%—
2y9(1 pending)+87.50%+24.74%+24.42%+0.31%+11.07%—
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 · 12,658 shares · as of Jul 1, 2024
06,81213,62320,43527,2462021202220232024SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 31 buys / 4 sellsCOVERAGE · 26 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
WRB
BERKLEY W R CORP
PURCHASEGRANT
Stock grant
3,090——121,990Jun 3, 2026Jun 4, 2026 ↗View →
PFE
PFIZER INC
PURCHASEGRANT
Stock grant
7,686.539$26.67$205.0K84,012.66Apr 23, 2026Apr 27, 2026 ↗View →
WRB
BERKLEY W R CORP
PURCHASEGRANT
Stock grant
2,776——118,900Jun 11, 2025Jun 13, 2025 ↗View →
PFE
PFIZER INC
PURCHASEGRANT
Stock grant
8,999$22.78$205.0K71,373.806Apr 24, 2025Apr 28, 2025 ↗View →
PFE
PFIZER INC
PURCHASE
19,457$25.65$499.1K27,707Feb 13, 2025Feb 14, 2025 ↗View →
KMX
CARMAX INC
PURCHASEGRANT
Stock grant
2,598——12,658Jul 1, 2024Jul 2, 2024 ↗View →
WRB
BERKLEY W R CORP
PURCHASEGRANT
Stock grant
2,534——77,416Jun 12, 2024Jun 12, 2024 ↗View →
PFE
PFIZER INC
PURCHASEGRANT
Stock grant
8,115.598$25.26$205.0K58,627.024Apr 25, 2024Apr 26, 2024 ↗View →
KMX
CARMAX INC
PURCHASEGRANT
Stock grant
2,210——10,060Jun 30, 2023Jul 5, 2023 ↗View →
WRB
BERKLEY W R CORP
PURCHASEGRANT
Stock grant
3,479——74,882Jun 14, 2023Jun 14, 2023 ↗View →
PFE
PFIZER INC
PURCHASEGRANT
Stock grant
5,291.688$38.74$205.0K47,972.709Apr 27, 2023Apr 28, 2023 ↗View →
KMX
CARMAX INC
PURCHASEGRANT
Stock grant
1,996——7,850Jul 1, 2022Jul 5, 2022 ↗View →
WRB
BERKLEY W R CORP
PURCHASEGRANT
Stock grant
2,995——71,404Jun 15, 2022Jun 15, 2022 ↗View →
ADV
ADVANTAGE SOLUTIONS INC.
PURCHASEGRANT
Stock grant
40,603——90,303May 25, 2022May 26, 2022 ↗View →
PFE
PFIZER INC
PURCHASEGRANT
Stock grant
4,058.602$50.51$205.0K41,235.927Apr 28, 2022Apr 29, 2022 ↗View →
KMX
CARMAX INC
SALE
12,500$132.02$1.65M5,854Jul 16, 2021Jul 20, 2021 ↗View →
KMX
CARMAX INC
PURCHASEGRANT
Stock grant
1,308——18,354Jul 2, 2021Jul 7, 2021 ↗View →
PFE
PFIZER INC
PURCHASEGRANT
Gift
4,750——4,750Jun 16, 2021Jul 6, 2021 ↗View →
PFE
PFIZER INC
SALEGRANT
Gift
4,750——8,250Jun 16, 2021Jul 6, 2021 ↗View →
WRB
BERKLEY W R CORP
PURCHASEGRANT
Stock grant
2,652——45,606Jun 15, 2021Jun 15, 2021 ↗View →
ADV
ADVANTAGE SOLUTIONS INC.
PURCHASEGRANT
Stock grant
14,344——49,700May 26, 2021May 28, 2021 ↗View →
PFE
PFIZER INC
PURCHASEGRANT
Stock grant
4,981.884$38.64$192.5K35,936.226Apr 22, 2021Apr 23, 2021 ↗View →
ADV
ADVANTAGE SOLUTIONS INC.
PURCHASEGRANT
Stock grant
10,356——35,356Jan 5, 2021Jan 6, 2021 ↗View →
PFE
PFIZER INC
PURCHASE
4,000$38.49$154.0K4,000Aug 6, 2020Aug 10, 2020 ↗View →
PFE
PFIZER INC
PURCHASE
3,000$38.55$115.7K7,000Aug 6, 2020Aug 10, 2020 ↗View →
PFE
PFIZER INC
PURCHASE
2,500$38.56$96.4K9,500Aug 6, 2020Aug 10, 2020 ↗View →
PFE
PFIZER INC
PURCHASE
1,500$38.51$57.8K11,000Aug 6, 2020Aug 10, 2020 ↗View →
PFE
PFIZER INC
PURCHASE
1,000$38.69$38.7K12,000Aug 6, 2020Aug 10, 2020 ↗View →
PFE
PFIZER INC
PURCHASE
1,000$38.62$38.6K13,000Aug 6, 2020Aug 10, 2020 ↗View →
KMX
CARMAX INC
SALE
10,200$89.37$911.6K17,046Jul 13, 2020Jul 15, 2020 ↗View →
KMX
CARMAX INC
PURCHASEGRANT
Stock grant
2,021——27,246Jun 26, 2020Jun 30, 2020 ↗View →
WRB
BERKLEY W R CORP
PURCHASEGRANT
Stock grant
3,483——42,954Jun 12, 2020Jun 12, 2020 ↗View →
PFE
PFIZER INC
PURCHASEGRANT
Stock grant
5,246.661$36.69$192.5K28,221.873Apr 23, 2020Apr 24, 2020 ↗View →
WRB
BERKLEY W R CORP
PURCHASEGRANT
Stock grant
5,767——39,471Mar 12, 2020Mar 12, 2020 ↗View →
WRB
BERKLEY W R CORP
SALEGRANT
Gift
5,767——11,535Mar 12, 2020Mar 12, 2020 ↗View →
Other insiders · KMX
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About this filer
CIK 0001214686
ROLE
Director
PRIMARY
KMX
COMPANIES
4
ACTIVE SINCE
Mar 2020
MARKETPEEL · /INSIDER/0001214686DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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