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CN

C. Howard Nye

MLM
CHAIRMAN, PRES & CEO · MARTIN MARIETTA MATERIALS INC · CIK 0001373147
FILING MIX · LIFETIME61%/39%
BUYS
64
SELLS
41
TOTAL VALUE
$79.34M
COMPANIES
2
ACTIVE SINCE
Feb 2020
HOLDINGS NOW
182,774
AVG SELL PX
$429.33
TRADE KIND
SHOWING 105 / 105
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
6 backtested trades · 8 horizonsHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by C. Howard Nye, 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
7d6+33.33%+1.93%+2.12%-0.19%-1.85%—
14d6+83.33%+0.45%+1.69%-1.24%-3.68%—
30d6+0.00%+4.10%+4.31%-0.22%-2.24%—
60d6+33.33%+9.05%+6.23%+2.82%+2.50%—
90d6+33.33%+4.19%+8.42%-4.23%-2.68%—
180d6+33.33%+9.97%+16.35%-6.38%-7.79%—
1y6+33.33%+15.96%+18.18%-2.21%-1.17%—
2y6+0.00%+17.83%+19.52%-1.70%-0.79%—
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 · 176,038 shares · as of Mar 1, 2026
045,05390,107135,160180,213202120222023202420252026SHARES 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 · 64 buys / 41 sellsCOVERAGE · 26 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
52$359.85$18.7K6,736Jun 16, 2026Jun 18, 2026 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
52$354.31$18.4K6,684Mar 17, 2026Mar 19, 2026 ↗View →
GD
GENERAL DYNAMICS CORP
SALE
83$359.79$29.9K6,632Mar 9, 2026Mar 11, 2026 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
1,120——1,120Mar 4, 2026Mar 6, 2026 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
270——6,715Mar 4, 2026Mar 6, 2026 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
5,919——176,038Mar 1, 2026Mar 3, 2026 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
1,221$696.85$850.9K170,119Feb 24, 2026Feb 25, 2026 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
1,805$683.60$1.23M171,340Feb 23, 2026Feb 25, 2026 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
6,405——173,145Feb 20, 2026Feb 24, 2026 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
2,216$548.75$1.22M166,740Feb 20, 2026Feb 24, 2026 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
22,365——174,241Feb 17, 2026Feb 19, 2026 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
9,717$666.53$6.48M164,524Feb 17, 2026Feb 19, 2026 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
298$629.49$187.6K151,876Dec 16, 2025Dec 17, 2025 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
92$339.14$31.2K6,445Dec 16, 2025Dec 18, 2025 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
95$326.97$31.1K6,353Sep 16, 2025Sep 18, 2025 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
111$281.11$31.2K6,258Jun 17, 2025Jun 20, 2025 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
118$264.50$31.2K6,147Mar 18, 2025Mar 20, 2025 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
1,370——1,370Mar 5, 2025Mar 6, 2025 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
330——6,029Mar 5, 2025Mar 6, 2025 ↗View →
GD
GENERAL DYNAMICS CORP
SALE
81$254.11$20.6K5,699Mar 3, 2025Mar 5, 2025 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
2,032$490.64$997.0K152,174Feb 24, 2025Feb 25, 2025 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
7,432——154,206Feb 21, 2025Feb 25, 2025 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
2,125$391.87$832.7K146,774Feb 21, 2025Feb 25, 2025 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
23,550——156,147Feb 18, 2025Feb 20, 2025 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
11,498$533.99$6.14M144,649Feb 18, 2025Feb 20, 2025 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
117$266.20$31.1K5,780Dec 17, 2024Dec 19, 2024 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
267$550.92$147.1K132,597Dec 13, 2024Dec 16, 2024 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
1,776$593.22$1.05M132,864Dec 2, 2024Dec 3, 2024 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
101$308.05$31.1K5,663Sep 17, 2024Sep 19, 2024 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
106$292.42$31.0K5,562Jun 18, 2024Jun 21, 2024 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
113$275.38$31.1K5,456Mar 18, 2024Mar 20, 2024 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
1,400——1,400Mar 6, 2024Mar 7, 2024 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
310——5,343Mar 6, 2024Mar 7, 2024 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
15,000$604.26$9.06M134,640Mar 5, 2024Mar 6, 2024 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
5,000$604.26$3.02M70,400Mar 5, 2024Mar 6, 2024 ↗View →
GD
GENERAL DYNAMICS CORP
SALE
105$273.37$28.7K5,033Mar 4, 2024Mar 6, 2024 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
1,236$553.31$683.9K149,640Feb 26, 2024Feb 27, 2024 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
3,373$438.94$1.48M144,243Feb 23, 2024Feb 27, 2024 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
6,633——150,876Feb 23, 2024Feb 27, 2024 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
12,379$536.30$6.64M112,706Feb 21, 2024Feb 22, 2024 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
28,164——140,870Feb 21, 2024Feb 27, 2024 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
2,619$533.14$1.40M125,085Feb 20, 2024Feb 22, 2024 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
124$251.04$31.1K5,138Dec 18, 2023Dec 20, 2023 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
2,720$467.35$1.27M127,704Dec 1, 2023Dec 5, 2023 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
140$222.80$31.2K5,014Sep 18, 2023Sep 20, 2023 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
146$213.80$31.2K4,874Jun 16, 2023Jun 20, 2023 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
145$215.31$31.2K4,728Mar 16, 2023Mar 20, 2023 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
1,780——1,780Mar 8, 2023Mar 9, 2023 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
375——4,583Mar 8, 2023Mar 9, 2023 ↗View →
GD
GENERAL DYNAMICS CORP
SALE
107$231.97$24.8K4,208Mar 6, 2023Mar 8, 2023 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
8,431——130,424Feb 24, 2023Feb 28, 2023 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
12,591$359.70$4.53M121,993Feb 21, 2023Feb 22, 2023 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
22,347——134,584Feb 21, 2023Feb 22, 2023 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
1,414$371.68$525.6K112,237Feb 17, 2023Feb 21, 2023 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
127$245.39$31.2K4,315Dec 16, 2022Dec 20, 2022 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
3,021$365.38$1.10M113,651Dec 1, 2022Dec 5, 2022 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
136$229.00$31.1K4,188Sep 16, 2022Sep 20, 2022 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
143$218.01$31.2K4,052Jun 16, 2022Jun 21, 2022 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
237$295.24$70.0K116,672Apr 13, 2022Apr 15, 2022 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
132$235.91$31.1K3,909Mar 16, 2022Mar 17, 2022 ↗View →
GD
GENERAL DYNAMICS CORP
SALE
98$250.24$24.5K3,777Mar 7, 2022Mar 9, 2022 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
365——3,875Mar 2, 2022Mar 4, 2022 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
2,190——2,190Mar 2, 2022Mar 4, 2022 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
3,180$380.08$1.21M116,435Feb 22, 2022Feb 23, 2022 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
3,913$295.24$1.16M119,615Feb 18, 2022Feb 22, 2022 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
8,270——115,702Feb 18, 2022Feb 22, 2022 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
1,423$385.02$547.9K107,432Feb 17, 2022Feb 22, 2022 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
31,620——122,907Feb 14, 2022Feb 16, 2022 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
14,052$369.05$5.19M108,855Feb 14, 2022Feb 16, 2022 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
115$204.85$23.6K3,510Dec 16, 2021Dec 20, 2021 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
2,991$401.25$1.20M91,287Dec 1, 2021Dec 2, 2021 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
120$197.77$23.7K3,395Sep 16, 2021Sep 20, 2021 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
123$192.15$23.6K3,275Jun 16, 2021Jun 21, 2021 ↗View →
GD
GENERAL DYNAMICS CORP
SALE
55$192.46$10.6K3,152Jun 7, 2021Jun 9, 2021 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
135$175.48$23.7K3,207Mar 16, 2021Mar 18, 2021 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
10,000$337.84$3.38M75,400Mar 10, 2021Mar 11, 2021 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
6,948$337.79$2.35M94,278Mar 10, 2021Mar 11, 2021 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
3,052$335.06$1.02M101,226Mar 9, 2021Mar 11, 2021 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
475——3,072Mar 3, 2021Mar 5, 2021 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
2,770——2,770Mar 3, 2021Mar 5, 2021 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
2,960$328.10$971.2K104,278Feb 22, 2021Feb 23, 2021 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
1,512$336.34$508.5K107,238Feb 19, 2021Feb 23, 2021 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
9,601——102,409Feb 17, 2021Feb 19, 2021 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
6,341$260.24$1.65M108,750Feb 17, 2021Feb 19, 2021 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
19,960——101,729Feb 17, 2021Feb 19, 2021 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
8,921$325.30$2.90M92,808Feb 17, 2021Feb 19, 2021 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
154$153.72$23.7K2,597Dec 16, 2020Dec 17, 2020 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALEGRANT
Gift
85,400——81,769Dec 15, 2020Dec 18, 2020 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Gift
85,400——85,400Dec 15, 2020Dec 18, 2020 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
2,549$275.47$702.2K167,169Dec 1, 2020Dec 3, 2020 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
162$146.54$23.7K2,443Sep 16, 2020Sep 17, 2020 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
158$149.50$23.6K2,281Jun 16, 2020Jun 18, 2020 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
6,645$177.62$1.18M169,718May 21, 2020May 22, 2020 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
10,000——0May 21, 2020May 22, 2020 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASE
Chairman, Pres & CEO
10,000$69.12$691.2K176,363May 21, 2020May 22, 2020 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
1,454$179.52$261.0K166,363Mar 30, 2020Mar 31, 2020 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
180$131.68$23.7K2,123Mar 17, 2020Mar 18, 2020 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
485——1,943Mar 4, 2020Mar 5, 2020 ↗View →
GD
GENERAL DYNAMICS CORP
PURCHASEGRANT
Stock grant
3,210——3,210Mar 4, 2020Mar 5, 2020 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
1,273$249.48$317.6K167,817Feb 24, 2020Feb 25, 2020 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
1,687$258.08$435.4K169,090Feb 20, 2020Feb 24, 2020 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
7,007$206.94$1.45M148,960Feb 19, 2020Feb 24, 2020 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
10,141——159,101Feb 19, 2020Feb 24, 2020 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
SALE
Chairman, Pres & CEO
9,436$258.67$2.44M170,777Feb 19, 2020Feb 24, 2020 ↗View →
MLM
MARTIN MARIETTA MATERIALS INC
PURCHASEGRANT
Stock grant
21,112——180,213Feb 19, 2020Feb 24, 2020 ↗View →
Other insiders · MLM
Loading peer insiders…
About this filer
CIK 0001373147
ROLE
Chairman, Pres & CEO
PRIMARY
MLM
COMPANIES
2
ACTIVE SINCE
Feb 2020
MARKETPEEL · /INSIDER/0001373147DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

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One short email. Insider buys, congressional trades, and plain-English analysis.

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