Odyssey Marine ExplorationOMEX

13F holders, Q4 2025 (December 31)
55holders +3
11new positions
8sold out
2famous investors
$1.96avg. 13F price*

At the end of Q4 2025, 55 institutions reported holding Odyssey Marine Exploration (OMEX) in their 13F filings, up 3 from Q3 2025. 11 opened new positions and 8 sold out. The largest holders were Old West Investment Management, LLC ($10.8M), Two Seas Capital LP ($10.2M) and Jefferies Financial Group Inc. ($2.9M). 2 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).

Company
Odyssey Marine Exploration
CUSIP
676118201
Latest filing quarter
Q2 2026

History

Number of 13F holders

020406080 Q1 2024: 42Q1 2024Q2 2024: 47Q2 2024Q3 2024: 38Q3 2024Q4 2024: 39Q4 2024Q1 2025: 41Q1 2025Q2 2025: 45Q2 2025Q3 2025: 52Q3 2025Q4 2025: 55Q4 2025Q1 2026: 61Q1 2026Q2 2026: 58Q2 2026

Total Exit/New Position Q3 2025 → Q4 2025

InstitutionsTotal Value
New Positions11$1.0M
Exits8$1.3M

All 13F filers, Q3 2025 → Q4 2025: 6,459,843 shares bought and 1,053,048 shares sold, net +5,406,795 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 55 holders

Old West Investment Management, LLC 1.92% Add +49.5% 5,496,448 $10.8M
Two Seas Capital LP 0.60% Add +13.5% 5,185,029 $10.2M
Jefferies Financial Group Inc. 0.02% Add +275.0% 1,500,000 $2.9M
Susquehanna International Group, LLP 0.00% Add +74.2% 1,169,296 $2.3M
Vanguard Group Inc. 0.00% Add +35.6% 868,585 $1.7M
Rangeley Capital, LLC 1.04% Add +27.0% 608,749 $1.2M
Geode Capital Management, LLC 0.00% Add +37.3% 559,991 $1.1M
Renaissance Technologies 0.00% Add +1428.9% 488,599 $958K
Group One Trading LLC 0.03% Reduce -34.9% 457,719 $897K
BlackRock, Inc. 0.00% Add +25.5% 415,069 $814K
UBS Group AG 0.00% Add +379.0% 326,173 $639K
SLT Holdings LLC 0.38% Add +4.9% 291,250 $571K
Foundations Investment Advisors, LLC 0.01% Add +4.9% 291,250 $571K
Jane Street Group, LLC 0.00% Add +258.4% 271,455 $532K
Mangrove Partners Im, LLC 0.03% New 197,952 $388K
State Street Corp. 0.00% Reduce -8.4% 195,512 $383K
Simplex Trading, LLC 0.01% Add +8717.5% 178,554 $350K
L. Roy Papp & Associates, LLP 0.03% No change 152,461 $299K
Northern Trust Corp. 0.00% Add +21.3% 117,441 $230K
XTX Topco Ltd 0.01% New 100,135 $196K
Two Sigma Investments, LP 0.00% Add +12.4% 94,420 $185K
Qube Research & Technologies Ltd 0.00% New 77,812 $153K
Voisard Asset Management Group, Inc. 0.03% Add +65.5% 70,000 $137K
NewEdge Advisors, LLC 0.00% Add +73788.1% 62,066 $122K
Caprock Group, LLC 0.00% New 50,140 $98K
Morgan Stanley 0.00% Add +10716.3% 49,214 $96K
Smithbridge Asset Management Inc. 0.01% Add +200.1% 36,010 $71K
Valeo Financial Advisors, LLC 0.00% New 30,028 $59K
Bank of America Corp. 0.00% Add +50.0% 28,670 $56K
JPMorgan Chase & Co. 0.00% New 26,987 $53K
Commonwealth Equity Services, LLC 0.00% Reduce -0.8% 23,553 $46K
Apollon Wealth Management, LLC 0.00% Add +4.6% 22,646 $44K
Cary Street Partners Financial LLC 0.00% No change 19,000 $37K
ARS Wealth Advisors Group, LLC 0.00% No change 17,730 $35K
Concurrent Investment Advisors, LLC 0.00% No change 17,000 $33K
Citadel Advisors 0.00% Reduce -89.4% 16,673 $33K
Stifel Financial Corp. 0.00% New 15,000 $29K
5th Street Advisors, LLC 0.01% No change 13,621 $27K
Tradewinds Capital Management, LLC 0.01% New 13,600 $27K
GenTrust, LLC 0.00% No change 10,378 $20K
MAI Capital Management 0.00% No change 3,075 $6K
Tower Research Capital LLC (TRC) 0.00% New 1,177 $2K
Parkside Financial Bank & Trust 0.00% Add +10000.0% 1,010 $2K
Farther Finance Advisors, LLC 0.00% New 1,000 $2K
Osaic Holdings, Inc. 0.00% Reduce -88.2% 671 $1K
Global Retirement Partners, LLC 0.00% No change 570 $1K
Avion Wealth 0.00% No change 875 $1K
SBI Securities Co., Ltd. 0.00% Add +2193.8% 367 $719
Allworth Financial LP 0.00% No change 292 $573
Meramec Financial Planners, LLC 0.00% — 63 $103
True Wealth Design, LLC 0.00% New 42 $83
Financial Consulate, Inc. 0.00% No change 9 $18
Silicon Valley Capital Partners 0.00% No change 9 $18
Wells Fargo & Company 0.00% Reduce -99.9% 1 $2
Citigroup Inc. 0.00% Reduce -99.8% 1 $2

"% of holder's portfolio" is OMEX's weight in each manager's 13F, not the share of Odyssey Marine Exploration the manager owns.