Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in OMEX held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | Two Seas Capital LP | 5.6M | $4.7M | +7.9% | 17.960% | 0.19% |
| 2 | Old West Investment Management, LLC | 4.8M | $4.0M | -13.2% | 15.327% | 0.43% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 2.4M | $2.0M | β | 7.696% | 0.00% |
| 4 | CITADEL ADVISORS LLC | 1.8M | $1.5M | +378.9% | 5.811% | 0.00% |
| 5 | Jefferies Financial Group Inc. | 1.5M | $1.3M | 0.0% | 4.817% | 0.01% |
| 6 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1.0M | $874K | -47.2% | 3.367% | 0.00% |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 605K | $505K | +8.1% | 1.944% | 0.00% |
| 8 | RENAISSANCE TECHNOLOGIES LLC | 542K | $452K | +10.9% | 1.740% | 0.00% |
| 9 | BlackRock, Inc. | 392K | $327K | -5.6% | 1.259% | 0.00% |
| 10 | UBS Group AG | 364K | $303K | +11.5% | 1.168% | 0.00% |
| 11 | VANGUARD FIDUCIARY TRUST CO | 267K | $222K | β | 0.856% | 0.00% |
| 12 | STATE STREET CORP | 230K | $192K | +17.5% | 0.738% | 0.00% |
| 13 | XTX Topco Ltd | 222K | $185K | +121.5% | 0.712% | 0.00% |
| 14 | Foundations Investment Advisors, LLC | 184K | $153K | -36.9% | 0.590% | 0.00% |
| 15 | SLT Holdings LLC | 184K | $153K | -36.9% | 0.590% | 0.10% |
| 16 | PAPP L ROY & ASSOCIATES | 152K | $127K | 0.0% | 0.490% | 0.01% |
| 17 | GROUP ONE TRADING, L.P. | 127K | $106K | -72.3% | 0.407% | 0.00% |
| 18 | Rockefeller Capital Management L.P. | 124K | $103K | β | 0.397% | 0.00% |
| 19 | NORTHERN TRUST CORP | 117K | $98K | 0.0% | 0.377% | 0.00% |
| 20 | VOISARD ASSET MANAGEMENT GROUP, INC. | 108K | $90K | +54.3% | 0.347% | 0.02% |
| 21 | TWO SIGMA INVESTMENTS, LP | 93K | $77K | -1.9% | 0.297% | 0.00% |
| 22 | CAPROCK Group, Inc. | 85K | $71K | +69.8% | 0.273% | 0.00% |
| 23 | BBR PARTNERS, LLC | 61K | $51K | β | 0.195% | 0.00% |
| 24 | Pilgrim Partners Asia Pte Ltd | 37K | $31K | β | 0.118% | 0.02% |
| 25 | GOLDMAN SACHS GROUP INC | 30K | $25K | β | 0.098% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in OMEX β a direct measure of their conviction.
Filings activity in OMEX during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 58 | +5.5% | 63.50% | 81.95 pp | $18M | 56% |
| Q4 2025 | 55 | +17% | 145.45% | +45.45 pp | $41M | +45% |
| Q3 2025 | 47 | +6.8% | 100.00% | +81.55 pp | $28M | +442% |
| Q2 2025 | 44 | +2.3% | 18.45% | +12.07 pp | $5M | +189% |
| Q1 2025 | 43 | +7.5% | 6.38% | 5.32 pp | $2M | 45% |
| Q4 2024 | 40 | +2.6% | 11.70% | 5.41 pp | $3M | 32% |
| Q3 2024 | 39 | 11% | 17.11% | 138.25 pp | $5M | 89% |
| Q2 2024 | 44 | β | 155.36% | β | $44M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying OMEX stock.
Based on Q1 2026 13F filings, institutional ownership of Odyssey Marine Exploration, Inc. stands at 63.5%, held across 58 reporting institutions.
Two Seas Capital LP is the largest reported institutional holder of OMEX, with approximately 5,592,985 shares worth $0.00B as of Q1 2026.
Yes β 4 widely-followed marquee investors appear among the top 25 institutional holders of OMEX, including CITADEL ADVISORS LLC, SUSQUEHANNA INTERNATIONAL GROUP, LLP, RENAISSANCE TECHNOLOGIES LLC, TWO SIGMA INVESTMENTS, LP.
Our composite Smart Money Score for OMEX is 52 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
18 institutions opened new positions in OMEX during Q1 2026, while 15 fully exited. 2 added to existing positions and 37 trimmed.
OMEX institutional ownership fell by 81.95 percentage points quarter-over-quarter, with a net change of +3 holders.
The top 10 institutions account for 89.1% of all reported 13F value in OMEX, and the top 25 account for 98.6%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Odyssey Marine Exploration, Inc. (OMEX) Institutional Ownership