Vault-13

ODYSSEY MARINE EXPL INC OMEX

COM NEW · Common Stock · CUSIP 676118201

41 institutional holders +0 vs Q3 2022
6,933,7856.9m shares reported held*
35.4% of all shares outstanding*
$26.9mreported value*
4 new 3 added 13 reduced 2 sold out net bought ≈ $1.2m (+321.5k 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: 19.6m as of 2023-02-14, 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 ≈ $3.88. Options: 4 managers hold calls ($99.5k notional), 2 hold puts ($3.9k).

Trends to Q4 2022

Institutional holders

Managers reporting a position, each quarter

0204060Q3 22: 41Q4 22: 4141Q3 22Q4 22
Numbers
QuarterHolders
Q3 202241
Q4 202241

Calls vs puts

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

CallsPuts
$0$50k$100k$150k$200kQ3 22 calls: $169.0kQ3 22 puts: $16.0kQ3 22P/C 0.09Q4 22 calls: $99.5kQ4 22 puts: $3.9kQ4 22P/C 0.04
Numbers
QuarterCallsPutsP/C
Q3 2022$169.0k$16.0k0.09
Q4 2022$99.5k$3.9k0.04

Biggest buyers

Biggest sellers

CITADEL ADVISORS LLC Reduced -33,279-33.3k
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced -21,987-22.0k
GROUP ONE TRADING LLC Reduced -18,164-18.2k
MILLENNIUM MANAGEMENT LLC Reduced -15,962-16.0k
FNY Investment Advisers, LLC Reduced -14,700-14.7k
Virtu Financial LLC Sold out -11,430-11.4k
SIMPLEX TRADING, LLC Reduced -4,363-4.4k
5th Street Advisors, LLC Reduced -2,239-2.2k
BlackRock Inc. Reduced -1,937-1.9k
MORGAN STANLEY Reduced -1,360-1.4k

Biggest calls

CITADEL ADVISORS LLC Reduced $91.2k23.5k shares
SIMPLEX TRADING, LLC Added $6.0k1.7k shares
GROUP ONE TRADING LLC Reduced $2.3k600 shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

CITADEL ADVISORS LLC New $3.9k1.0k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 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 in Q4 2022

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
101Q1 21: 0 buyingQ1 21: 0 sellingQ2 21: 0 buyingQ2 21: 0 sellingQ2 21Q3 21: 0 buyingQ3 21: 0 sellingQ4 21: 0 buyingQ4 21: 0 sellingQ4 21Q1 22: 0 buyingQ1 22: 0 sellingQ2 22: 1 buyingQ2 22: 0 sellingQ2 22Q3 22: 0 buyingQ3 22: 0 sellingQ4 22: 0 buyingQ4 22: 0 sellingQ4 22
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q1 20210—0——
Q2 20210—0——
Q3 20210—0——
Q4 20210—0——
Q1 20220—0——
Q2 20221$7.1k0——
Q3 20220—0——
Q4 20220—0——

None reported in Q4 2022.

Holders, Q4 2022

#ManagerLocationShares Value% of their portfolioChangeShares change
1 FourWorld Capital Management LLC 10.52% of their portfolio NEW YORK, NY 1,875,0491.9m $7.3m $7.3m 10.52% Unchanged
2 Two Seas Capital LP 5.06% of their portfolio RYE, NY 1,371,8741.4m $5.3m $5.3m 5.06% Unchanged
3 Whitefort Capital Management, LP 1.65% of their portfolio NEW YORK, NY 548,909548.9k $2.1m $2.1m 1.65% Unchanged
4 Stonegate Investment Group, LLC 0.08% of their portfolio BIRMINGHAM, AL 461,162461.2k $1.8m $1.8m 0.08% Reduced -439 -439
5 Jefferies Financial Group Inc. 0.03% of their portfolio NEW YORK, NY 425,560425.6k $1.7m $1.7m 0.03% New
6 BOOTHBAY FUND MANAGEMENT, LLC 0.05% of their portfolio NEW YORK, NY 393,604393.6k $1.5m $1.5m 0.05% Unchanged
7 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 392,913392.9k $1.5m $1.5m 0.00% Added +9.8k +9,754
8 Corbin Capital Partners, L.P. 0.40% of their portfolio NEW YORK, NY 340,559340.6k $1.3m $1.3m 0.40% Unchanged
9 Antonetti Capital Management LLC 1.51% of their portfolio NAPLES, FL 284,300284.3k $1.1m $1.1m 1.51% Added +7.4k +7,435
10 Kestra Advisory Services, LLC 0.01% of their portfolio AUSTIN, TX 203,777203.8k $790.7k $790.7k 0.01% Unchanged
11 BlackRock Inc. 0.00% of their portfolio New York, NY 197,367197.4k $765.8k $765.8k 0.00% Reduced -1.9k -1,937
12 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 121,845121.8k $472.0k $472.0k 0.00% Added +3.0k +2,969
13 TRANSCEND CAPITAL ADVISORS, LLC 0.02% of their portfolio MADISON, NJ 51,30051.3k $199.0k $199.0k 0.02% Unchanged
14 ARS Wealth Advisors Group, LLC 0.03% of their portfolio St. Petersburg, FL 48,28948.3k $187.4k $187.4k 0.03% Unchanged
15 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 40,48340.5k $157.1k $157.1k 0.00% Unchanged
16 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 25,71525.7k $99.8k $99.8k 0.00% Reduced -22.0k -21,987
17 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 24,52624.5k $95.2k $95.2k 0.00% Unchanged
18 GROUP ONE TRADING LLC 0.00% of their portfolio CHICAGO, IL 22,49522.5k $87.3k $87.3k 0.00% Reduced -18.2k -18,164
19 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 17,36417.4k $67.0k $67.0k 0.00% Reduced -16.0k -15,962
20 5th Street Advisors, LLC 0.05% of their portfolio Southport, CT 13,62113.6k $52.8k $52.8k 0.05% Reduced -2.2k -2,239
21 ProVise Management Group, LLC 0.00% of their portfolio CLEARWATER, FL 12,09512.1k $46.9k $46.9k 0.00% Unchanged
22 WMS Partners, LLC 0.00% of their portfolio TOWSON, MD 10,95811.0k $42.5k $42.5k 0.00% Unchanged
23 Cresset Asset Management, LLC 0.00% of their portfolio Chicago, IL 10,95811.0k $42.5k $42.5k 0.00% Unchanged
24 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 10,61310.6k $41.2k $41.2k 0.00% Reduced -33.3k -33,279
25 GenTrust, LLC 0.00% of their portfolio MIAMI, FL 10,37810.4k $40.3k $40.3k 0.00% Unchanged
26 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 4,1654.2k $16.2k $16.2k 0.00% Reduced -1.4k -1,360
27 Steward Partners Investment Advisory, LLC 0.00% of their portfolio STAMFORD, CT 3,5003.5k $13.6k $13.6k 0.00% Unchanged
28 QUADRANT CAPITAL GROUP LLC 0.00% of their portfolio CINCINNATI, OH 2,9703.0k $11.5k $11.5k 0.00% Unchanged
29 UBS Group AG 0.00% of their portfolio ZURICH, V8 2,5912.6k $10.1k $10.1k 0.00% New
30 FNY Investment Advisers, LLC 0.01% of their portfolio NEW YORK, NY 1,8001.8k $6.0k $6.0k 0.01% Reduced -14.7k -14,700
31 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 1,0351.0k $4.0k $4.0k 0.00% Reduced -84 -84
32 AlphaMark Advisors, LLC 0.00% of their portfolio FT. WRIGHT, KY 600600 $2.0k $2.0k 0.00% Unchanged
33 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 453453 $1.8k $1.8k 0.00% Reduced -20 -20
34 NFSG Corp 0.00% of their portfolio BOCA RATON, FL 417417 $1.6k $1.6k 0.00% Unchanged
35 Allworth Financial LP 0.00% of their portfolio FOLSOM, CA 292292 $1.1k $1.1k 0.00% Unchanged
36 SIMPLEX TRADING, LLC 0.00% of their portfolio CHICAGO, IL 149149 $0 $0 0.00% Reduced -4.4k -4,363
37 OLD SECOND NATIONAL BANK OF AURORA 0.00% of their portfolio AURORA, IL 4242 $163 $163 0.00% Unchanged
38 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 3838 $148 $148 0.00% Reduced -812 -812
39 Parkside Financial Bank & Trust 0.00% of their portfolio SAINT LOUIS, MO 1010 $39 $39 0.00% New
40 Silicon Valley Capital Partners 0.00% of their portfolio SAN JOSE, CA 99 $35 $35 0.00% New
41 CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio BIRMINGHAM, AL 00 $0 $0 0.00% Unchanged