Randolph L. Marten is CEO & Chairman at MARTEN TRANSPORT LTD (MRTN). They have made 31 open-market trades across 1 company since 2006, most recently 2026-07-30.
CIK 0001253979
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.
3 open-market purchases totalling $205K since 2007, against 28 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| MRTN | 17,742,900 | $227.8M |
Shares reported on the most recent Form 4, priced at the 2026-07-30 close.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 83% | 17% | 0% |
| Avg Move | -4.3% | +1.0% | +4.1% |
| Scored | 18 | 18 | 18 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| MRTN | SELL | 2020-05-12 | 2020-05-12 | $24.67 | $668K | -0.5% | -3.0% | +13.8% |
| MRTN | SELL | 2020-05-01 | 2020-05-01 | $23.00 | $173K | +0.1% | +7.2% | +13.9% |
| MRTN | SELL | 2020-04-28 | 2020-04-30 | $23.16 | $1.5M | +10.2% | +13.4% | +19.2% |
| MRTN | SELL | 2019-02-08 | 2019-02-12 | $18.57 | $351K | +6.3% | -2.7% | +1.8% |
| MRTN | SELL | 2019-02-07 | 2019-02-07 | $18.81 | $750K | +5.8% | -1.0% | +3.7% |
| MRTN | SELL | 2019-02-06 | 2019-02-07 | $19.03 | $99K | +5.8% | -1.0% | +3.7% |
| MRTN | SELL | 2019-02-05 | 2019-02-07 | $19.20 | $863K | +5.8% | -1.0% | +3.7% |
| MRTN | SELL | 2019-02-05 | 2019-02-07 | $19.02 | $3.4M | +5.8% | -1.0% | +3.7% |
| MRTN | SELL | 2017-06-05 | 2017-06-07 | $25.51 | $1.3M | +6.4% | +3.0% | +12.0% |
| MRTN | SELL | 2016-07-28 | 2016-07-29 | $21.76 | $2.2M | -1.4% | -1.4% | -6.7% |
| MRTN | SELL | 2016-05-23 | 2016-05-25 | $19.27 | $1.5M | -0.2% | +1.8% | +10.1% |
| MRTN | SELL | 2016-04-28 | 2016-04-28 | $19.29 | $386K | -2.9% | +3.1% | +12.9% |
| MRTN | SELL | 2016-04-27 | 2016-04-28 | $19.22 | $599K | -2.9% | +3.1% | +12.9% |
| MRTN | SELL | 2016-04-26 | 2016-04-28 | $19.20 | $1.9M | -2.9% | +3.1% | +12.9% |
| MRTN | SELL | 2016-04-26 | 2016-04-28 | $19.01 | $168K | -2.9% | +3.1% | +12.9% |
| MRTN | SELL | 2016-02-05 | 2016-02-08 | $17.59 | $565K | -0.9% | +1.3% | +7.8% |
| MRTN | SELL | 2016-02-05 | 2016-02-08 | $17.58 | $633K | -0.9% | +1.3% | +7.8% |
| MRTN | SELL | 2015-02-24 | 2015-02-26 | $23.25 | $533K | -8.7% | +0.5% | +0.5% |
| MRTN | SELL | 2013-11-27 | 2013-12-02 | $19.45 | $486K | -8.7% | +0.5% | +0.5% |
| MRTN | SELL | 2013-11-14 | 2013-11-18 | $18.31 | $1.8M | -8.7% | +0.5% | +0.5% |
| MRTN | SELL | 2013-10-18 | 2013-10-22 | $17.03 | $810K | -8.7% | +0.5% | +0.5% |
| MRTN | SELL | 2013-08-23 | 2013-08-27 | $18.36 | $44K | -8.7% | +0.5% | +0.5% |
| MRTN | SELL | 2013-07-23 | 2013-07-25 | $17.08 | $909K | -8.7% | +0.5% | +0.5% |
| MRTN | SELL | 2010-12-07 | 2010-12-08 | $22.91 | $1.1M | -8.7% | +0.5% | +0.5% |
| MRTN | SELL | 2010-12-02 | 2010-12-06 | $22.39 | $1.1M | -8.7% | +0.5% | +0.5% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.