OMEX (Odyssey Marine Exploration, Inc)

Insider Trading Activity

Every open-market purchase and sale reported by OMEX officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.

Form 4 Filings
50
most recent
Open-Market Buys
3
code P
Sales
2
code S
Reporting Insiders
25
current holders
OMEX — Recent Form 4 Transactions (latest 2026-07-02)
FiledInsiderRole TypeSharesValue
2026-07-02 John D Jr Longley President & COO A
2026-07-02 Mark Gordon Chief Executive Officer MIXED
2026-06-03 TODD E SIEGEL Director M
2026-06-03 Jon D Sawyer Director M
2026-06-03 Larissa Tiffany Pommeraud Director M
2026-06-03 Mark B Justh Director M
2026-05-18 Larissa Tiffany Pommeraud Director A
2026-05-18 Jon D Sawyer Director A
2026-04-22 TODD E SIEGEL Director A
2026-04-22 Larissa Tiffany Pommeraud Director A
2026-03-24 Mark Gordon Chief Executive Officer M
2026-03-10 Larissa Tiffany Pommeraud Director A
2026-02-10 Larissa Tiffany Pommeraud Director A
2026-02-10 TODD E SIEGEL Director A
2026-01-08 TODD E SIEGEL Director A
2026-01-08 Larissa Tiffany Pommeraud Director A
2025-12-09 TODD E SIEGEL Director A
2025-12-09 Larissa Tiffany Pommeraud Director A
2025-12-09 Jon D Sawyer Director A
2025-12-04 John D Jr Longley President and COO A
2025-12-04 Mark Gordon Chief Executive Officer A
2025-12-04 Larissa Tiffany Pommeraud Director A
2025-12-04 TODD E SIEGEL Director A
2025-12-04 Mark B Justh Director A
2025-12-04 Jon D Sawyer Director A
2025-11-10 TODD E SIEGEL Director A
2025-11-10 Jon D Sawyer Director A
2025-11-10 Larissa Tiffany Pommeraud Director A
2025-10-20 Mark Gordon Chief Executive Officer Sell
2025-10-15 Mark Gordon Chief Executive Officer Sell
2025-10-15 John D Jr Longley President & COO MIXED
2025-08-20 Gallardo Juan Antonio Carlos Cortina 10%+ Owner
2025-08-13 Gallardo Juan Antonio Carlos Cortina 10%+ Owner MIXED
2025-07-17 Larissa Tiffany Pommeraud Director A
2025-07-03 Mark B Justh Director A
2025-07-03 Mark Gordon Chief Executive Officer A
2025-07-03 John D Jr Longley President & COO A
2025-04-15 TODD E SIEGEL Director A
2025-04-15 Larissa Tiffany Pommeraud Director A
2025-03-31 Larissa Tiffany Pommeraud Director A
2025-01-10 Mark B Justh Director Buy
2025-01-03 Mark B Justh Director Buy
2024-12-26 Mark B Justh Director Buy
2024-11-18 TODD E SIEGEL Director A
2024-11-18 John D Jr Longley President & COO A
2024-11-18 Mark B Justh Director A
2024-11-18 Mark Gordon Chief Executive Officer A
2024-11-18 Jon D Sawyer Director A
2024-11-13 TODD E SIEGEL Director A
2024-04-10 TODD E SIEGEL Director A
OMEX — Current Insider Holders
InsiderRole Shares HeldValue
10%+ Owner 3,931,466
10%+ Owner 914,649
Director 880,041
Chief Executive Officer 636,402
CEO 197,040
Director 166,377
President & COO 154,480
President and Co-Chairman 128,847
Director 109,343
Director 101,970
Director 101,040
PAO/Treasurer 97,826
Chief Business Officer 85,255
Director 64,348
Secretary 37,218
CFO 24,464
Director 16,922
EVP, Sec. & General Counsel 16,620
Director 14,365
CFO 12,056
Director 11,458
Director 11,021
Director 7,602
Chief Financial Officer 3,482
Director 2,254
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the OMEX quote page; the site-wide leaderboard is on the insider transactions hub.