DEMOREST ROBERT L (CIK 1239192) reported 3 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-05-07). Recent activity: Buy MRTN (4,100 shares), Sell MRTN (6,580 shares), Buy MRTN (4,500 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-07 | MARTEN TRANSPORT LTD (MRTN) | Director | Buy | 4,100 | $0 |
| 2025-12-29 | MARTEN TRANSPORT LTD (MRTN) | Director | Sell | 6,580 | $0 |
| 2025-05-08 | MARTEN TRANSPORT LTD (MRTN) | Director | Buy | 4,500 | $0 |
Source: SEC Form 4 filings · as of 2026-05-07