MarketPeel
Insider Trading Intelligence
LP

Laree E. Perez

MLM
DIRECTOR · MARTIN MARIETTA MATERIALS INC · CIK 0001243153
FILING MIX · LIFETIME78%/22%
BUYS
7
SELLS
2
TOTAL VALUE
$1.12M
COMPANIES
1
ACTIVE SINCE
May 2020
HOLDINGS NOW
15,730
AVG SELL PX
$613.32
TRADE KIND
SHOWING 9 / 9
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
1 backtested trades · 8 horizons · 2 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Laree E. Perez, 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
7d1+100.00%-0.22%+0.98%-1.20%-1.20%
14d1+100.00%-0.50%+1.28%-1.77%-1.77%
30d1+0.00%+2.65%+1.83%+0.82%+0.82%
60d1+0.00%+3.06%+5.01%-1.95%-1.95%
90d1+100.00%-0.42%+5.20%-5.62%-5.62%
180d1+0.00%+9.86%+7.69%+2.17%+2.17%
1y1(1 pending)
2y1(1 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
MLM · 15,730 shares · as of May 14, 2026
04,1148,22812,34116,455202120222023202420252026SHARES 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
2026
2026
FLOW · 7 buys / 2 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
31315,730May 14, 2026May 18, 2026View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
1,038$613.32$636.6K15,417Aug 8, 2025Aug 11, 2025View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
308$552.86$170.3K16,455May 15, 2025May 16, 2025View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
293$581.69$170.4K16,147May 16, 2024May 17, 2024View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
362$400.57$145.0K15,854May 11, 2023May 12, 2023View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
44315,492May 12, 2022May 16, 2022View →
MLM
MARTIN MARIETTA MATERIALS INC
SALEGRANT
Gift
24515,049Nov 30, 2021Dec 2, 2021View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
38815,294May 13, 2021May 17, 2021View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
77014,906May 14, 2020May 15, 2020View →
Other insiders · MLM
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About this filer
CIK 0001243153
ROLE
Director
PRIMARY
MLM
COMPANIES
1
ACTIVE SINCE
May 2020
MARKETPEEL · /INSIDER/0001243153DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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