ODYSSEY MARINE EXPL INC OMEX
COM NEW · Common Stock · CUSIP 676118201
- SectorIndustrials
- IndustryWater Transportation
- HeadquartersTampa, FL
- Founded1994
- Websiteshipwreck.net
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 58.6m as of 2026-06-15, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $1.31. Options: 6 managers hold calls ($534.6k notional), 5 hold puts ($292.4k).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 41 |
| Q4 2022 | 41 |
| Q1 2023 | 45 |
| Q2 2023 | 37 |
| Q3 2023 | 42 |
| Q4 2023 | 40 |
| Q1 2024 | 43 |
| Q2 2024 | 48 |
| Q3 2024 | 39 |
| Q4 2024 | 40 |
| Q1 2025 | 43 |
| Q2 2025 | 46 |
| Q3 2025 | 52 |
| Q4 2025 | 55 |
| Q1 2026 | 61 |
| Q2 2026 | 58 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 18 | 25 |
| Q4 2024 | 13 | 22 |
| Q1 2025 | 16 | 10 |
| Q2 2025 | 23 | 14 |
| Q3 2025 | 31 | 12 |
| Q4 2025 | 35 | 15 |
| Q1 2026 | 26 | 23 |
| Q2 2026 | 27 | 27 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $4.7m | $734.6k | 0.16 |
| Q4 2025 | $2.7m | $1.8m | 0.68 |
| Q1 2026 | $618.2k | $274.3k | 0.44 |
| Q2 2026 | $534.6k | $292.4k | 0.55 |
Biggest buyers
| CITADEL ADVISORS LLC | Added | +2.5m |
| MORGAN STANLEY | Added | +1.4m |
| UBS Group AG | Added | +837.7k |
| BlackDiamond Wealth Management, LLC | New | +100.0k |
| BlackRock, Inc. | Added | +66.9k |
| JPMORGAN CHASE & CO | Added | +57.4k |
| VANGUARD FIDUCIARY TRUST CO | Added | +33.0k |
| GROUP ONE TRADING LLC | Added | +21.6k |
| Caprock Group, LLC | Added | +20.0k |
| TD Waterhouse Canada Inc. | New | +15.0k |
Biggest sellers
| RENAISSANCE TECHNOLOGIES LLC | Sold out | -541.7k |
| Kingsbury Capital Investment Advisors LLC | Sold out | -313.9k |
| JANE STREET GROUP, LLC | Reduced | -303.1k |
| Old West Investment Management, LLC | Reduced | -270.5k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | -162.2k |
| SLT Holdings LLC | Reduced | -155.5k |
| Foundations Investment Advisors, LLC | Reduced | -155.5k |
| XTX Topco Ltd | Reduced | -50.0k |
| Pilgrim Partners Asia Pte Ltd | Sold out | -36.6k |
| GOLDMAN SACHS GROUP INC | Sold out | -30.5k |
Biggest calls
| CITADEL ADVISORS LLC | Added | $168.9k198.6k shares |
| IMC-Chicago, LLC | Added | $150.4k176.8k shares |
| JANE STREET GROUP, LLC | Added | $82.6k97.1k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $68.4k80.5k shares |
| SIMPLEX TRADING, LLC | Reduced | $47.5k55.9k shares |
| GROUP ONE TRADING LLC | Reduced | $16.8k19.8k shares |
Biggest puts
| SIMPLEX TRADING, LLC | Added | $78.2k92.0k shares |
| CITADEL ADVISORS LLC | Reduced | $73.0k85.8k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $66.4k78.1k shares |
| JANE STREET GROUP, LLC | Added | $37.9k44.6k shares |
| GROUP ONE TRADING LLC | Added | $36.9k43.4k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| Capital Latinoamericano, S.A. de C.V. 13G · passive investor +3.1 pts · filed 2025-07-31 | 11.6% |
| Greywolf Capital Management LP 13G · passive investor +0.9 pts · filed 2026-03-04 | 10.9% |
Two Seas Capital LP
13D · may seek influence
no change · filed 2026-04-13
Stated purposeThe Reporting Persons acquired the securities reported herein for investment purposes in the ordinary course of business. The Reporting Persons acquired such securities because they believed that such securities, when purchased, represented an attractive investment opportunity. On April 8, 2026, the Issuer, Oceanus Merger Sub, Inc., a Delaware corporation and wholly owned subsidiary of the Issuer ("Merger Sub"), and American Ocean Minerals Corporation, a Delaware corporation ("AOM,") entered into an Agreement and Plan of Merger (the "Merger Agreement") pursuant to which Merger Sub will merge with and into AOM, with AOM surviving the merger and becoming a direct, wholly owned subsidiary of Odyssey (the "Merger"). In connection with the Merger Agreement, on April 8, 2026, the Issuer, AOM an… Full filing |
10.0% |
| Old West Investment Management, LLC 13G · institution new · filed 2026-05-12 | 8.2% |
Fell to 5% or below in the last year: Brumder William George (0.2%, 2026-04-21), FourWorld Capital Management LLC (0.8%, 2026-02-17)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 1 | $169.5k | 0 | — | — |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 0 | — | 2 | $1.6m | $1.6m |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 0 | — | 0 | — | — |
| Q3 2026 | 0 | — | 0 | — | — |
None reported since 1 Apr 2026.
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| Two Seas Capital LP 0.18% of their portfolio | 5.6m $4.8m | Unchanged |
| Old West Investment Management, LLC 0.41% of their portfolio | 4.5m $3.8m | Reduced -270.5k |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 4.0m $14.7m | Added +2.5m |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 2.4m $2.0m | Reduced -2.1k |
| Jefferies Financial Group Inc. 0.01% of their portfolio | 1.5m $1.3m | Unchanged |
| MORGAN STANLEY 0.00% of their portfolio | 1.4m $1.2m | Added +1.4m |
| UBS Group AG 0.00% of their portfolio | 1.2m $1.0m | Added +837.7k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 666.4k $566.7k | Reduced -162.2k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 602.8k $512.8k | Reduced -2.6k |
| BlackRock, Inc. 0.00% of their portfolio | 458.8k $390.2k | Added +66.9k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 299.6k $254.6k | Added +33.0k |
| STATE STREET CORP 0.00% of their portfolio | 229.8k $195.4k | Unchanged |
| XTX Topco Ltd 0.00% of their portfolio | 171.8k $146.1k | Reduced -50.0k |
| L. Roy Papp & Associates, LLP 0.01% of their portfolio | 152.5k $129.7k | Unchanged |
| GROUP ONE TRADING LLC 0.00% of their portfolio | 148.4k $126.2k | Added +21.6k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 123.4k $105.0k | Added +6.0k |
| Rockefeller Capital Management L.P. 0.00% of their portfolio | 116.7k $99.3k | Reduced -7.0k |
| VOISARD ASSET MANAGEMENT GROUP, INC. 0.02% of their portfolio | 108.0k $91.8k | Unchanged |
| Caprock Group, LLC 0.00% of their portfolio | 105.1k $89.4k | Added +20.0k |
| BlackDiamond Wealth Management, LLC 0.04% of their portfolio | 100.0k $87.7k | New |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 79.5k $67.6k | Reduced -13.1k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 72.7k $63.9k | Added +57.4k |
| BBR PARTNERS, LLC 0.00% of their portfolio | 60.6k $51.5k | Unchanged |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 55.1k $46.9k | Reduced -303.1k |
| SIMPLEX TRADING, LLC 0.00% of their portfolio | 31.1k $26.4k | Added +10.4k |
| Foundations Investment Advisors, LLC 0.00% of their portfolio | 28.2k $24.0k | Reduced -155.5k |
| SLT Holdings LLC 0.02% of their portfolio | 28.2k $24.0k | Reduced -155.5k |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 26.9k $22.8k | Unchanged |
| Apollon Wealth Management, LLC 0.00% of their portfolio | 22.6k $19.3k | Unchanged |
| CARY STREET PARTNERS FINANCIAL LLC 0.00% of their portfolio | 19.0k $16.2k | Unchanged |
| Concurrent Investment Advisors, LLC 0.00% of their portfolio | 17.0k $14.5k | Unchanged |
| TD Waterhouse Canada Inc. 0.00% of their portfolio | 15.0k $12.3k | New |
| LPL Financial LLC 0.00% of their portfolio | 14.4k $12.3k | New |
| Private Advisor Group, LLC 0.00% of their portfolio | 13.6k $11.6k | New |
| 5th Street Advisors, LLC 0.00% of their portfolio | 13.6k $11.6k | Unchanged |
| Bay Colony Advisory Group, Inc d/b/a Bay Colony Advisors 0.00% of their portfolio | 12.5k $10.6k | New |
| Kestra Advisory Services, LLC 0.00% of their portfolio | 10.6k $9.0k | New |
| GenTrust, LLC 0.00% of their portfolio | 10.4k $8.8k | Unchanged |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 10.1k $8.6k | Added +6.3k |
| Focus Partners Wealth 0.00% of their portfolio | 10.0k $8.5k | New |
| Continuum Advisory, LLC 0.00% of their portfolio | 5.6k $4.7k | New |
| Arax Advisory Partners 0.00% of their portfolio | 4.0k $3.4k | New |
| FIDUCIARY FINANCIAL ADVISORS 0.00% of their portfolio | 2.6k $2.2k | New |
| BARCLAYS PLC 0.00% of their portfolio | 1.0k $861 | New |
| Farther Finance Advisors, LLC 0.00% of their portfolio | 1.0k $850 | Unchanged |
| Avion Wealth 0.00% of their portfolio | 875 $0 | Unchanged |
| Integrated Wealth Concepts LLC 0.00% of their portfolio | 701 $596 | New |
| Global Retirement Partners, LLC 0.00% of their portfolio | 570 $485 | First filing |
| SBI Securities Co., Ltd. 0.00% of their portfolio | 567 $482 | Added +200 |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 543 $462 | Unchanged |
| HARBOUR INVESTMENTS, INC. 0.00% of their portfolio | 510 $434 | Added +500 |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 500 $0 | New |
| Truvestments Capital LLC 0.00% of their portfolio | 500 $425 | Unchanged |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 50 $42 | Reduced -621 |
| Darwin Wealth Management, LLC 0.00% of their portfolio | 42 $35 | New |
| FINANCIAL CONSULATE, INC 0.00% of their portfolio | 9 $8 | Unchanged |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 1 $1 | Unchanged |
| Caitong International Asset Management Co., Ltd 0.00% of their portfolio | 1 $1 | Unchanged |