MARTEN TRANSPORT LTD (MRTN) Insider Trading & SEC Filings
Last SEC filing
MARTEN TRANSPORT LTD (MRTN) has filed 12 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-30. 3 Form 8-K material event filings were reported by MRTN in the last 90 days. InsiderAlpha tracks every MRTN SEC filing - Form 4, Form 144, and 8-K - in real time, including Rule 10b5-1 plan detection.
About MARTEN TRANSPORT LTD (MRTN)
MARTEN TRANSPORT LTD trades under the ticker MRTN. InsiderAlpha tracks 27 primary SEC Form 4 filings from 12 reporting insiders for MRTN since 2024, sourced directly from SEC EDGAR.
| Sector | Industrials insider trading |
|---|---|
| SIC classification | Trucking (No Local) (SIC 4213) |
| SEC CIK | 0000799167 |
90-Day SEC Filing Activity
| Form 4 filings (90d) | 12 |
|---|---|
| Form 8-K filings (90d) | 3 |
| Latest Form 4 filing | 2026-07-30 |
Recent MRTN Insider Transactions (Form 4)
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Randolph L. Marten | Chairman of the Board and CEO | G - Bona-fide gift | 1.2K | $0.00 | - | SEC | |
| Randall John Baier | Exec. VP & Chief Tech. Officer | A - Grant or award | 4.8K | $0.00 | - | SEC | |
| Patricia L. Jones | Director | A - Grant or award | 4.1K | $0.00 | - | SEC | |
| Larry B. Hagness | Director | A - Grant or award | 4.1K | $0.00 | - | SEC | |
| Kathleen P. Iverson | Director | A - Grant or award | 4.1K | $0.00 | - | SEC | |
| Ronald Richard Booth | Director | A - Grant or award | 4.1K | $0.00 | - | SEC | |
| Jerry M. Bauer | Director | A - Grant or award | 4.1K | $0.00 | - | SEC | |
| Robert L. Demorest | Director | A - Grant or award | 4.1K | $0.00 | - | SEC | |
| James J. Hinnendael | EVP & Chief Financial Officer | A - Grant or award | 6.8K | $0.00 | - | SEC | |
| Randolph L. Marten | Chairman of the Board and CEO | A - Grant or award | 12.3K | $0.00 | - | SEC | |
| Adam Daniel Phillips | EVP & Chief Operating Officer | A - Grant or award | 4.7K | $0.00 | - | SEC | |
| Douglas Paul Petit | President | A - Grant or award | 6.4K | $0.00 | - | SEC | |
| Randall John Baier | Exec. VP & Chief Tech. Officer | F - Tax withholding / forfeiture | 1.3K | $13.90 | $18K | SEC | |
| Randolph L. Marten | Chairman of the Board and CEO | F - Tax withholding / forfeiture | 4.7K | $13.90 | $65K | SEC | |
| James J. Hinnendael | Exec. VP and CFO | F - Tax withholding / forfeiture | 2.9K | $13.90 | $40K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for MARTEN TRANSPORT LTD (MRTN). Updated in real time as new filings are submitted to the SEC.
Most-Active MRTN Insiders - Last 90 Days
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Randolph L. Marten | 2 | - |
| Kathleen P. Iverson | 1 | - |
| Robert L. Demorest | 1 | - |
| Jerry M. Bauer | 1 | - |
| Patricia L. Jones | 1 | - |
Recent MRTN Form 8-K Material Events
- - Item 2.02, 7.01, 9.01 [SEC]
- - Item 1.01, 2.03, 9.01 [SEC]
- - Item 5.02, 5.07, 9.01 [SEC]
- - Item 2.02, 7.01, 9.01 · Earnings · neutral [SEC]
Marten Transport announced financial results for the quarter ended March 31, 2026. The filing includes standard quarterly earnings disclosure with non-GAAP reconciliations for operating metrics adjusted for fuel surcharge revenue.
Recent Insider Filings
- - Randolph L. Marten (Chairman of the Board and CEO)
- - Patricia L. Jones (Director)
- - Larry B. Hagness (Director)
- - Kathleen P. Iverson (Director)
- - Ronald Richard Booth (Director)
Form 4 Transaction Code Reference
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in MRTN insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
MRTN Insider Trading - FAQ
- What is the latest insider trade for MRTN?
- MARTEN TRANSPORT LTD (MRTN) had 12 insider filings in the last 90 days, with the most recent on 2026-07-30. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
- How many insiders are buying MRTN stock?
- 0 insider purchases of MRTN were filed in the last 90 days.
- How many insiders are selling MRTN stock?
- 0 insider sales of MRTN were filed in the last 90 days.
- Where can I see MRTN SEC filings (Form 4, 10-K, 10-Q, 8-K)?
- This page tracks MRTN Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Industrials Companies with Insider Activity
Other companies in the InsiderAlpha index with a significant SEC Form 4 insider-trading footprint:
- $MSM MSC INDUSTRIAL DIRECT CO INC
- $NSP INSPERITY, INC.
- $PAMT PAMT CORP
- $REZI RESIDEO TECHNOLOGIES, INC.
- $RR RICHTECH ROBOTICS INC.
- $SPWR SunPower Inc.
- $TLSS Transportation Logistics Systems, Inc.
- $UUU UNIVERSAL SAFETY PRODUCTS, INC.
- $VELO Velo3D, Inc.
- $ZEO Zeo Energy Corp.
Related Companies - Recent Insider Activity
- ARCBEST CORP /DE/ (ARCB)
- COVENANT LOGISTICS GROUP, INC. (CVLG)
- Knight-Swift Transportation Holdings Inc. (KNX)
- OLD DOMINION FREIGHT LINE, INC. (ODFL)
- HEARTLAND EXPRESS INC (HTLD)
- HUNT J B TRANSPORT SERVICES INC (JBHT)
- Schneider National, Inc. (SNDR)
- PAMT CORP (PAMT)
- UNIVERSAL LOGISTICS HOLDINGS, INC. (ULH)
Learn More
- What is SEC Form 4?
- How to read insider buying signals
- Rule 10b5-1 trading plans explained
- The cluster buying signal
Open the live MRTN dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.