Vault-13

ODYSSEY MARINE EXPL INC OMEX

COM NEW · Common Stock · CUSIP 676118201

58 institutional holders -3 vs Q1 2026
24,464,47524.5m shares reported held*
41.8% of all shares outstanding*
$32.0mreported value*
14 new 13 added 11 reduced 16 sold out net bought ≈ $2.5m (+2.9m shares)

* 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

0255075Q3 22: 41Q4 22: 41Q1 23: 45Q2 23: 37Q3 23: 42Q4 23: 40Q1 24: 43Q2 24: 48Q3 24: 39Q4 24: 40Q1 25: 43Q2 25: 46Q3 25: 52Q4 25: 55Q1 26: 61Q2 26: 5858Q3 22Q3 23Q3 24Q3 25Q2 26
Numbers
QuarterHolders
Q3 202241
Q4 202241
Q1 202345
Q2 202337
Q3 202342
Q4 202340
Q1 202443
Q2 202448
Q3 202439
Q4 202440
Q1 202543
Q2 202546
Q3 202552
Q4 202555
Q1 202661
Q2 202658

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
40040Q3 24: 18 bought or addedQ3 24: 25 cut or sold outQ4 24: 13 bought or addedQ4 24: 22 cut or sold outQ4 24Q1 25: 16 bought or addedQ1 25: 10 cut or sold outQ2 25: 23 bought or addedQ2 25: 14 cut or sold outQ2 25Q3 25: 31 bought or addedQ3 25: 12 cut or sold outQ4 25: 35 bought or addedQ4 25: 15 cut or sold outQ4 25Q1 26: 26 bought or addedQ1 26: 23 cut or sold outQ2 26: 27 bought or addedQ2 26: 27 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q3 20241825
Q4 20241322
Q1 20251610
Q2 20252314
Q3 20253112
Q4 20253515
Q1 20262623
Q2 20262727

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$2m$4m$6mQ3 25 calls: $4.7mQ3 25 puts: $734.6kQ3 25P/C 0.16Q4 25 calls: $2.7mQ4 25 puts: $1.8mQ4 25P/C 0.68Q1 26 calls: $618.2kQ1 26 puts: $274.3kQ1 26P/C 0.44Q2 26 calls: $534.6kQ2 26 puts: $292.4kQ2 26P/C 0.55
Numbers
QuarterCallsPutsP/C
Q3 2025$4.7m$734.6k0.16
Q4 2025$2.7m$1.8m0.68
Q1 2026$618.2k$274.3k0.44
Q2 2026$534.6k$292.4k0.55

Biggest buyers

CITADEL ADVISORS LLC Added +2,487,598+2.5m
MORGAN STANLEY Added +1,381,327+1.4m
UBS Group AG Added +837,727+837.7k
BlackDiamond Wealth Management, LLC New +100,000+100.0k
BlackRock, Inc. Added +66,851+66.9k
JPMORGAN CHASE & CO Added +57,408+57.4k
VANGUARD FIDUCIARY TRUST CO Added +32,996+33.0k
GROUP ONE TRADING LLC Added +21,619+21.6k
Caprock Group, LLC Added +20,000+20.0k
TD Waterhouse Canada Inc. New +15,000+15.0k

Biggest sellers

RENAISSANCE TECHNOLOGIES LLC Sold out -541,721-541.7k
Kingsbury Capital Investment Advisors LLC Sold out -313,877-313.9k
JANE STREET GROUP, LLC Reduced -303,130-303.1k
Old West Investment Management, LLC Reduced -270,522-270.5k
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced -162,181-162.2k
SLT Holdings LLC Reduced -155,500-155.5k
Foundations Investment Advisors, LLC Reduced -155,500-155.5k
XTX Topco Ltd Reduced -49,968-50.0k
Pilgrim Partners Asia Pte Ltd Sold out -36,600-36.6k
GOLDMAN SACHS GROUP INC Sold out -30,471-30.5k

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.

HolderStakeChangeShares Last filed
Capital Latinoamericano, S.A. de C.V. 13G · passive investor +3.1 pts · filed 2025-07-31 11.6% +3.1 pts 3.9m≈ $3.3m 2025-07-31
Greywolf Capital Management LP 13G · passive investor +0.9 pts · filed 2026-03-04 10.9% +0.9 pts 6.4m≈ $5.4m 2026-03-04
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% no change 5.9m≈ $5.0m 2026-04-13
Old West Investment Management, LLC 13G · institution new · filed 2026-05-12 8.2% new 4.8m≈ $4.1m 2026-05-12

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)

BuyingSelling
202Q4 24: 1 buyingQ4 24: 0 sellingQ1 25: 0 buyingQ1 25: 0 sellingQ1 25Q2 25: 0 buyingQ2 25: 0 sellingQ3 25: 0 buyingQ3 25: 0 sellingQ3 25Q4 25: 0 buyingQ4 25: 2 sellingQ1 26: 0 buyingQ1 26: 0 sellingQ1 26Q2 26: 0 buyingQ2 26: 0 sellingQ3 26: 0 buyingQ3 26: 0 sellingQ3 26
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20241$169.5k0——
Q1 20250—0——
Q2 20250—0——
Q3 20250—0——
Q4 20250—2$1.6m$1.6m
Q1 20260—0——
Q2 20260—0——
Q3 20260—0——

None reported since 1 Apr 2026.

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Two Seas Capital LP 0.18% of their portfolio RYE, NY 5,592,9855.6m $4.8m $4.8m 0.18% Unchanged
2 Old West Investment Management, LLC 0.41% of their portfolio Los Angeles, CA 4,502,6744.5m $3.8m $3.8m 0.41% Reduced -270.5k -270,522
3 CITADEL ADVISORS LLC 0.01% of their portfolio MIAMI, FL 4,036,6804.0m $14.7m $14.7m 0.01% Added +2.5m +2,487,598
4 VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 2,394,5452.4m $2.0m $2.0m 0.00% Reduced -2.1k -2,096
5 Jefferies Financial Group Inc. 0.01% of their portfolio NEW YORK, NY 1,500,0001.5m $1.3m $1.3m 0.01% Unchanged
6 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 1,382,4201.4m $1.2m $1.2m 0.00% Added +1.4m +1,381,327
7 UBS Group AG 0.00% of their portfolio ZURICH, V8 1,201,4571.2m $1.0m $1.0m 0.00% Added +837.7k +837,727
8 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 666,396666.4k $566.7k $566.7k 0.00% Reduced -162.2k -162,181
9 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 602,772602.8k $512.8k $512.8k 0.00% Reduced -2.6k -2,590
10 BlackRock, Inc. 0.00% of their portfolio New York, NY 458,789458.8k $390.2k $390.2k 0.00% Added +66.9k +66,851
11 VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio MALVERN, PA 299,555299.6k $254.6k $254.6k 0.00% Added +33.0k +32,996
12 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 229,812229.8k $195.4k $195.4k 0.00% Unchanged
13 XTX Topco Ltd 0.00% of their portfolio LONDON, X0 171,844171.8k $146.1k $146.1k 0.00% Reduced -50.0k -49,968
14 L. Roy Papp & Associates, LLP 0.01% of their portfolio Phoenix, AZ 152,461152.5k $129.7k $129.7k 0.01% Unchanged
15 GROUP ONE TRADING LLC 0.00% of their portfolio CHICAGO, IL 148,438148.4k $126.2k $126.2k 0.00% Added +21.6k +21,619
16 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 123,442123.4k $105.0k $105.0k 0.00% Added +6.0k +6,001
17 Rockefeller Capital Management L.P. 0.00% of their portfolio NEW YORK, NY 116,749116.7k $99.3k $99.3k 0.00% Reduced -7.0k -7,000
18 VOISARD ASSET MANAGEMENT GROUP, INC. 0.02% of their portfolio Grand Rapids, MI 108,000108.0k $91.8k $91.8k 0.02% Unchanged
19 Caprock Group, LLC 0.00% of their portfolio BOISE, ID 105,140105.1k $89.4k $89.4k 0.00% Added +20.0k +20,000
20 BlackDiamond Wealth Management, LLC 0.04% of their portfolio NEW YORK, NY 100,000100.0k $87.7k $87.7k 0.04% New
21 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 79,48579.5k $67.6k $67.6k 0.00% Reduced -13.1k -13,135
22 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 72,65172.7k $63.9k $63.9k 0.00% Added +57.4k +57,408
23 BBR PARTNERS, LLC 0.00% of their portfolio NEW YORK, NY 60,61660.6k $51.5k $51.5k 0.00% Unchanged
24 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 55,13155.1k $46.9k $46.9k 0.00% Reduced -303.1k -303,130
25 SIMPLEX TRADING, LLC 0.00% of their portfolio CHICAGO, IL 31,10431.1k $26.4k $26.4k 0.00% Added +10.4k +10,367
26 Foundations Investment Advisors, LLC 0.00% of their portfolio PHOENIX, AZ 28,25028.2k $24.0k $24.0k 0.00% Reduced -155.5k -155,500
27 SLT Holdings LLC 0.02% of their portfolio SCOTTSDALE, AZ 28,25028.2k $24.0k $24.0k 0.02% Reduced -155.5k -155,500
28 Vanguard Global Advisers, LLC 0.00% of their portfolio MALVERN, PA 26,87326.9k $22.8k $22.8k 0.00% Unchanged
29 Apollon Wealth Management, LLC 0.00% of their portfolio MOUNT PLEASANT, SC 22,64622.6k $19.3k $19.3k 0.00% Unchanged
30 CARY STREET PARTNERS FINANCIAL LLC 0.00% of their portfolio RICHMOND, VA 19,00019.0k $16.2k $16.2k 0.00% Unchanged
31 Concurrent Investment Advisors, LLC 0.00% of their portfolio Tampa, FL 17,00017.0k $14.5k $14.5k 0.00% Unchanged
32 TD Waterhouse Canada Inc. 0.00% of their portfolio TORONTO, A6 15,00015.0k $12.3k $12.3k 0.00% New
33 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 14,44414.4k $12.3k $12.3k 0.00% New
34 Private Advisor Group, LLC 0.00% of their portfolio MORRISTOWN, NJ 13,64213.6k $11.6k $11.6k 0.00% New
35 5th Street Advisors, LLC 0.00% of their portfolio Southport, CT 13,62113.6k $11.6k $11.6k 0.00% Unchanged
36 Bay Colony Advisory Group, Inc d/b/a Bay Colony Advisors 0.00% of their portfolio CONCORD, MA 12,50012.5k $10.6k $10.6k 0.00% New
37 Kestra Advisory Services, LLC 0.00% of their portfolio AUSTIN, TX 10,58610.6k $9.0k $9.0k 0.00% New
38 GenTrust, LLC 0.00% of their portfolio MIAMI, FL 10,37810.4k $8.8k $8.8k 0.00% Unchanged
39 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 10,11310.1k $8.6k $8.6k 0.00% Added +6.3k +6,260
40 Focus Partners Wealth 0.00% of their portfolio ST LOUIS, MO 10,00010.0k $8.5k $8.5k 0.00% New
41 Continuum Advisory, LLC 0.00% of their portfolio EAGLE, ID 5,5575.6k $4.7k $4.7k 0.00% New
42 Arax Advisory Partners 0.00% of their portfolio NEW YORK, NY 4,0004.0k $3.4k $3.4k 0.00% New
43 FIDUCIARY FINANCIAL ADVISORS 0.00% of their portfolio GRAND RAPIDS, MI 2,5872.6k $2.2k $2.2k 0.00% New
44 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 1,0131.0k $861 $861 0.00% New
45 Farther Finance Advisors, LLC 0.00% of their portfolio SAN FRANCISCO, CA 1,0001.0k $850 $850 0.00% Unchanged
46 Avion Wealth 0.00% of their portfolio THE WOODLANDS, TX 875875 $0 $0 0.00% Unchanged
47 Integrated Wealth Concepts LLC 0.00% of their portfolio WALTHAM, MA 701701 $596 $596 0.00% New
48 Global Retirement Partners, LLC 0.00% of their portfolio San Rafael, CA 570570 $485 $485 0.00% First filing
49 SBI Securities Co., Ltd. 0.00% of their portfolio TOKYO, M0 567567 $482 $482 0.00% Added +200 +200
50 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 543543 $462 $462 0.00% Unchanged
51 HARBOUR INVESTMENTS, INC. 0.00% of their portfolio MADISON, WI 510510 $434 $434 0.00% Added +500 +500
52 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 500500 $0 $0 0.00% New
53 Truvestments Capital LLC 0.00% of their portfolio SARASOTA, FL 500500 $425 $425 0.00% Unchanged
54 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 5050 $42 $42 0.00% Reduced -621 -621
55 Darwin Wealth Management, LLC 0.00% of their portfolio TAMPA, FL 4242 $35 $35 0.00% New
56 FINANCIAL CONSULATE, INC 0.00% of their portfolio HUNT VALLEY, MD 99 $8 $8 0.00% Unchanged
57 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 11 $1 $1 0.00% Unchanged
58 Caitong International Asset Management Co., Ltd 0.00% of their portfolio HONG KONG, K3 11 $1 $1 0.00% Unchanged