7 insiders reported 35 Form 4 transactions for ODYSSEY MARINE EXPLORATION INC (OMEX) over the past 18 months (most recent 2026-07-02). Recent activity: Gordon Mark (Chief Executive Officer) Buy 4,167 shares, Longley John D Jr (President & COO) Buy 4,167 shares, Gordon Mark (Chief Executive Officer) Sell 1,139 shares, SIEGEL TODD E (Director) Buy 20,000 shares, Sawyer Jon D (Director) Buy 20,000 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-02 | Gordon Mark | Chief Executive Officer | Buy | 4,167 | $0 |
| 2026-07-02 | Longley John D Jr | President & COO | Buy | 4,167 | $0 |
| 2026-07-02 | Gordon Mark | Chief Executive Officer | Sell | 1,139 | $969 |
| 2026-06-03 | SIEGEL TODD E | Director | Buy | 20,000 | $0 |
| 2026-06-03 | Sawyer Jon D | Director | Buy | 20,000 | $0 |
| 2026-06-03 | Justh Mark B | Director | Buy | 20,000 | $0 |
| 2026-06-03 | Pommeraud Larissa Tiffany | Director | Buy | 20,000 | $0 |
| 2026-05-18 | Sawyer Jon D | Director | Buy | 9,346 | $0 |
| 2026-05-18 | Pommeraud Larissa Tiffany | Director | Buy | 9,346 | $0 |
| 2026-04-22 | SIEGEL TODD E | Director | Buy | 31,475 | $0 |
| 2026-04-22 | Pommeraud Larissa Tiffany | Director | Buy | 23,981 | $0 |
| 2025-10-20 | Gordon Mark | Chief Executive Officer | Sell | 30,000 | $116,100 |
| 2025-10-20 | Gordon Mark | Chief Executive Officer | Sell | 30,000 | $106,800 |
| 2025-10-20 | Gordon Mark | Chief Executive Officer | Sell | 30,000 | $105,000 |
| 2025-10-15 | Longley John D Jr | President & COO | Buy | 6,500 | $2,665 |
| 2025-10-15 | Longley John D Jr | President & COO | Sell | 38,977 | $136,420 |
| 2025-10-15 | Longley John D Jr | President & COO | Sell | 73,572 | $275,895 |
| 2025-10-15 | Longley John D Jr | President & COO | Buy | 143,500 | $58,835 |
| 2025-10-15 | Longley John D Jr | President & COO | Sell | 143,500 | $532,385 |
| 2025-10-15 | Gordon Mark | Chief Executive Officer | Sell | 20,956 | $73,346 |
| 2025-10-15 | Gordon Mark | Chief Executive Officer | Sell | 30,000 | $112,200 |
| 2025-10-15 | Gordon Mark | Chief Executive Officer | Sell | 30,000 | $119,400 |
| 2025-08-13 | Cortina Gallardo Juan Antonio Carlos | Insider | Sell | 473,591 | $814,577 |
| 2025-08-13 | Cortina Gallardo Juan Antonio Carlos | Insider | Buy | 489,279 | $538,207 |
| 2025-08-13 | Cortina Gallardo Juan Antonio Carlos | Insider | Sell | 96,409 | $163,895 |
Source: SEC Form 4 filings · as of 2026-07-02