Insider Trading
Current insider transactions (SEC Form 4) — buys and sells by officers, directors, and major shareholders.
| Ticker | Insider | Title | Date | Transaction | Price ($) | Shares | Value ($) | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|
| MRT | Freifeld Daniel | Director | 09/30/2026 | Zuteilung | — | 20,261 | — | Form 4 |
| MRT | Healey Kerry Murphy | Director | 09/30/2026 | Zuteilung | — | 3,732 | — | Form 4 |
| MRT | Lute Douglas | Director | 09/30/2026 | Zuteilung | — | 3,732 | — | Form 4 |
| MRT | Spiro Alex | Director | 09/30/2026 | Zuteilung | — | 2,666 | — | Form 4 |
| MRT | Ugur Agah | Director | 09/30/2026 | Zuteilung | — | 3,199 | — | Form 4 |
| MRT | Freifeld Daniel | Director | 09/09/2026 | Verkauf | 2.02 | 350,000 | 707,000 | Form 4 |
| MRTN | Marten Randolph L | Chairman of the Board and CEO | 07/30/2026 | Schenkung | — | 1,200 | — | Form 4 |
| MRT | Freifeld Daniel | Director | 06/15/2026 | Verkauf | 1.70 | 500,000 | 850,000 | Form 4 |
| MRT | Freifeld Daniel | Director | 05/18/2026 | Verkauf | 2.04 | 500,000 | 1,020,000 | Form 4 |
A compact market overview — not investment advice. Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q).