C. Howard Nye is CEO & Chairman +1 at MARTIN MARIETTA MATERIALS INC (MLM). They have made 13 open-market trades across 1 company since 2015, most recently 2026-09-16.
CIK 0001373147
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 13 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| MLM | SELL | 2024-03-05 | 2024-03-06 | $604.26 | $12.1M | -2.4% | +1.3% | -9.1% |
| MLM | SELL | 2021-03-09 | 2021-03-11 | $337.40 | $13.5M | -7.3% | +2.2% | +5.3% |
| MLM | SELL | 2020-05-21 | 2020-05-22 | $177.62 | $2.4M | +13.8% | +12.8% | +12.5% |
| MLM | SELL | 2019-12-13 | 2019-12-17 | $276.87 | $2.3M | +1.2% | -4.2% | -37.6% |
| MLM | SELL | 2019-08-30 | 2019-08-30 | $253.52 | $3.8M | +3.3% | +8.4% | +6.1% |
| MLM | SELL | 2019-08-01 | 2019-08-02 | $243.66 | $5.5M | +2.2% | +7.2% | +7.6% |
| MLM | SELL | 2019-05-06 | 2019-05-07 | $220.48 | $3.2M | -1.0% | +4.4% | +11.9% |
| MLM | SELL | 2019-05-06 | 2019-05-07 | $220.48 | $6.5M | -1.0% | +4.4% | +11.9% |
| MLM | SELL | 2018-05-09 | 2018-05-11 | $212.66 | $3.6M | +1.7% | +6.5% | -5.6% |
| MLM | SELL | 2017-05-03 | 2017-05-05 | $239.16 | $4.9M | -5.1% | -3.9% | -11.0% |
| MLM | SELL | 2016-11-09 | 2016-11-10 | $224.68 | $3.9M | -5.6% | -4.6% | -3.5% |
| MLM | SELL | 2016-05-12 | 2016-05-13 | $186.95 | $5.0M | +3.9% | -1.6% | +6.8% |
| MLM | SELL | 2015-05-14 | 2015-05-15 | $153.23 | $2.0M | -9.0% | +0.6% | +0.6% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.