Mark Gordon - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 3, 2026
Mark Gordon has filed 1 SEC Form 4 filing across 1 company in the last 90 days - selling. Lifetime open-market sales: $633K.
Profile
Mark Gordon is a corporate insider at ODYSSEY MARINE EXPLORATION INC ("OMEX"). Gordon has reported 11 insider filings with the SEC since 2024. The most recent filing was in July 2026.
| Role | Chief Executive Officer |
|---|---|
| Notability | 20/100 |
Board memberships
- ODYSSEY MARINE EXPLORATION INC
Awards & honors
- Leadership in deep-ocean exploration
- Development of subsea mineral projects
- Collaboration with governments on mineral resource identification
Trading Pattern
InsiderAlpha's records for Mark Gordon go back to 2024: 7 primary Form 4 filings, an average of 2.3 per year. 6 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Career & Filing History
Every role Mark Gordon has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- Chief Executive Officer at ODYSSEY MARINE EXPLORATION INC (OMEX) - 7 filings, 2024 to 2026
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-02 | OMEX | ODYSSEY MARINE EXPLORATION INC | F - Tax withholding / forfeiture | 1.1K | $0.85 | $969 |
| 2026-07-02 | OMEX | ODYSSEY MARINE EXPLORATION INC | A - Grant or award | 4.2K | $0.00 | |
| 2026-03-24 | OMEX | ODYSSEY MARINE EXPLORATION INC | M - Option exercise | 150.0K | $0.41 | $62K |
| 2025-10-20 | OMEX | ODYSSEY MARINE EXPLORATION INC | S - Open-market sale [10b5-1] | 30.0K | $3.56 | $107K |
| 2025-10-20 | OMEX | ODYSSEY MARINE EXPLORATION INC | S - Open-market sale [10b5-1] | 30.0K | $3.50 | $105K |
| 2025-10-20 | OMEX | ODYSSEY MARINE EXPLORATION INC | S - Open-market sale [10b5-1] | 30.0K | $3.87 | $116K |
| 2025-10-13 | OMEX | ODYSSEY MARINE EXPLORATION INC | S - Open-market sale [10b5-1] | 30.0K | $3.98 | $119K |
| 2025-10-13 | OMEX | ODYSSEY MARINE EXPLORATION INC | S - Open-market sale [10b5-1] | 30.0K | $3.74 | $112K |
| 2025-10-13 | OMEX | ODYSSEY MARINE EXPLORATION INC | S - Open-market sale [10b5-1] | 21.0K | $3.50 | $73K |
| 2025-06-27 | OMEX | ODYSSEY MARINE EXPLORATION INC | A - Grant or award | 365.2K | $1.04 | $379K |
Companies - Last 90 Days
- ODYSSEY MARINE EXPLORATION INC (OMEX) - 1 filing, last 2026-07-02
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades at the companies Mark Gordon has recently filed at. Multiple unrelated insiders buying the same stock within a short window - cluster buying - has historically been one of the strongest Form 4 signals.
- Gallardo Juan Antonio Carlos Cortina - $1.68M of OMEX open-market activity in the last 12 months
- John D. Longley Jr. - $945K of OMEX open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- Frank Martell
- Martin Product Sales LLC
- Marcelo Eduardo Martins
- Neil Mehta
- Keith A. Meister
- MetLife Investment Management, LLC
- John Micek
- Andrew J. Mills
Frequently Asked Questions
Who is Mark Gordon?
Mark Gordon is a corporate insider at ODYSSEY MARINE EXPLORATION INC ("OMEX"). Gordon has reported 11 insider filings with the SEC since 2024. The most recent filing was in July 2026.…
How many SEC Form 4 filings has Mark Gordon submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Mark Gordon been buying or selling stock?
Recorded transactions: 0 open-market purchases and 6 open-market sales ($633K) across all tracked filings.
Where can I see all of Mark Gordon's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Open the live Mark Gordon profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.