Vault-13

ODYSSEY MARINE EXPL INC OMEX

COM NEW · Common Stock · CUSIP 676118201

37 institutional holders -8 vs Q1 2023
7,034,9637.0m shares reported held*
35.2% of all shares outstanding*
$26.7mreported value*
2 new 9 added 5 reduced 10 sold out net bought ≈ $347.7k (+96.6k 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: 20.0m as of 2023-08-08, 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 ≈ $3.80. Options: 5 managers hold calls ($105.0k notional), 5 hold puts ($963.2k).

Trends to Q2 2023

Institutional holders

Managers reporting a position, each quarter

0204060Q3 22: 41Q4 22: 41Q1 23: 45Q2 23: 3737Q3 22Q4 22Q1 23Q2 23
Numbers
QuarterHolders
Q3 202241
Q4 202241
Q1 202345
Q2 202337

Buyers vs sellers

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

Bought or addedCut or sold out
20020Q4 22: 7 bought or addedQ4 22: 15 cut or sold outQ4 22Q1 23: 13 bought or addedQ1 23: 7 cut or sold outQ1 23Q2 23: 11 bought or addedQ2 23: 15 cut or sold outQ2 23
Numbers
QuarterBought or addedCut or sold out
Q4 2022715
Q1 2023137
Q2 20231115

Calls vs puts

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

CallsPuts
$0$250k$500k$750k$1mQ3 22 calls: $169.0kQ3 22 puts: $16.0kQ3 22P/C 0.09Q4 22 calls: $99.5kQ4 22 puts: $3.9kQ4 22P/C 0.04Q1 23 calls: $306.0kQ1 23 puts: $924.1kQ1 23P/C 3.02Q2 23 calls: $105.0kQ2 23 puts: $963.2kQ2 23P/C 9.17
Numbers
QuarterCallsPutsP/C
Q3 2022$169.0k$16.0k0.09
Q4 2022$99.5k$3.9k0.04
Q1 2023$306.0k$924.1k3.02
Q2 2023$105.0k$963.2k9.17

Biggest buyers

FourWorld Capital Management LLC Added +298,599+298.6k
VANGUARD GROUP INC Added +79,960+80.0k
GEODE CAPITAL MANAGEMENT, LLC Added +39,673+39.7k
BlackRock Inc. Added +14,001+14.0k
CITADEL ADVISORS LLC Added +3,201+3.2k
Antonetti Capital Management LLC Added +1,100+1.1k
NORTHERN TRUST CORP Added +377+377
BARCLAYS PLC New +198+198
ARS Wealth Advisors Group, LLC Added +167+167
ROYAL BANK OF CANADA New +91+91

Biggest sellers

WOLVERINE TRADING, LLC Sold out -128,222-128.2k
ENVESTNET ASSET MANAGEMENT INC Sold out -59,206-59.2k
Stonegate Investment Group, LLC Reduced -49,277-49.3k
MILLENNIUM MANAGEMENT LLC Sold out -40,099-40.1k
SUSQUEHANNA INTERNATIONAL GROUP, LLP Sold out -23,145-23.1k
ProVise Management Group, LLC Sold out -11,511-11.5k
SIMPLEX TRADING, LLC Reduced -10,450-10.4k
FNY Investment Advisers, LLC Sold out -10,000-10.0k
GROUP ONE TRADING LLC Reduced -4,300-4.3k
Steward Partners Investment Advisory, LLC Sold out -3,500-3.5k

Biggest calls

CITADEL ADVISORS LLC Reduced $75.2k20.9k shares
GROUP ONE TRADING LLC Added $28.8k8.0k shares
SIMPLEX TRADING, LLC Reduced $1.0k300 shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares
FNY Investment Advisers, LLC Added $0225 shares

Biggest puts

SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $794.2k220.6k shares
SIMPLEX TRADING, LLC Added $115.0k32.1k shares
CITADEL ADVISORS LLC Reduced $48.6k13.5k shares
GROUP ONE TRADING LLC Reduced $5.4k1.5k 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 Q2 2023

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
101Q3 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 22Q1 23: 0 buyingQ1 23: 0 sellingQ2 23: 0 buyingQ2 23: 1 sellingQ2 23
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q3 20210—0——
Q4 20210—0——
Q1 20220—0——
Q2 20221$7.1k0——
Q3 20220—0——
Q4 20220—0——
Q1 20230—0——
Q2 20230—1$180.0k—
DateInsiderTradeSharesPrice ValueTheir holding
2023-04-06 Abbott John Director Sold 16,922 $3.03 $51.3k16.9k shares -100%
2023-04-05 Abbott John Director Sold 42,216 $3.05 $128.8k42.2k shares -71%

Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).

Holders, Q2 2023

#ManagerLocationShares Value% of their portfolioChangeShares change
1 FourWorld Capital Management LLC 2.25% of their portfolio NEW YORK, NY 2,173,6482.2m $7.8m $7.8m 2.25% Added +298.6k +298,599
2 Two Seas Capital LP 1.08% of their portfolio RYE, NY 1,371,8741.4m $4.9m $4.9m 1.08% Unchanged
3 Whitefort Capital Management, LP 1.86% of their portfolio NEW YORK, NY 548,909548.9k $2.0m $2.0m 1.86% Unchanged
4 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 517,612517.6k $1.9m $1.9m 0.00% Added +80.0k +79,960
5 Jefferies Financial Group Inc. 0.03% of their portfolio NEW YORK, NY 425,560425.6k $1.5m $1.5m 0.03% Unchanged
6 BOOTHBAY FUND MANAGEMENT, LLC 0.04% of their portfolio NEW YORK, NY 393,604393.6k $1.4m $1.4m 0.04% Unchanged
7 Corbin Capital Partners, L.P. 1.13% of their portfolio NEW YORK, NY 340,559340.6k $1.2m $1.2m 1.13% Unchanged
8 Antonetti Capital Management LLC 1.41% of their portfolio NAPLES, FL 272,479272.5k $980.9k $980.9k 1.41% Added +1.1k +1,100
9 BlackRock Inc. 0.00% of their portfolio New York, NY 212,231212.2k $764.0k $764.0k 0.00% Added +14.0k +14,001
10 Kestra Advisory Services, LLC 0.01% of their portfolio AUSTIN, TX 203,755203.8k $733.5k $733.5k 0.01% Reduced -22 -22
11 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 161,518161.5k $581.5k $581.5k 0.00% Added +39.7k +39,673
12 Stonegate Investment Group, LLC 0.02% of their portfolio BIRMINGHAM, AL 121,144121.1k $436.1k $436.1k 0.02% Reduced -49.3k -49,277
13 TRANSCEND CAPITAL ADVISORS, LLC 0.02% of their portfolio MADISON, NJ 51,30051.3k $184.7k $184.7k 0.02% Unchanged
14 ARS Wealth Advisors Group, LLC 0.03% of their portfolio St. Petersburg, FL 48,45648.5k $174.4k $174.4k 0.03% Added +167 +167
15 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 40,48340.5k $145.7k $145.7k 0.00% Unchanged
16 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 25,27925.3k $91.0k $91.0k 0.00% Added +3.2k +3,201
17 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 24,90324.9k $89.7k $89.7k 0.00% Added +377 +377
18 Apollon Wealth Management, LLC 0.00% of their portfolio MOUNT PLEASANT, SC 21,64621.6k $77.9k $77.9k 0.00% Unchanged
19 GROUP ONE TRADING LLC 0.00% of their portfolio CHICAGO, IL 19,93819.9k $71.8k $71.8k 0.00% Reduced -4.3k -4,300
20 5th Street Advisors, LLC 0.04% of their portfolio Southport, CT 13,62113.6k $49.0k $49.0k 0.04% Unchanged
21 WMS Partners, LLC 0.00% of their portfolio TOWSON, MD 10,95811.0k $39.4k $39.4k 0.00% Unchanged
22 Cresset Asset Management, LLC 0.00% of their portfolio Chicago, IL 10,95811.0k $39.4k $39.4k 0.00% Unchanged
23 GenTrust, LLC 0.00% of their portfolio MIAMI, FL 10,37810.4k $37.4k $37.4k 0.00% Unchanged
24 SIMPLEX TRADING, LLC 0.00% of their portfolio CHICAGO, IL 3,6813.7k $13.0k $13.0k 0.00% Reduced -10.4k -10,450
25 QUADRANT CAPITAL GROUP LLC 0.00% of their portfolio CINCINNATI, OH 2,9703.0k $10.7k $10.7k 0.00% Unchanged
26 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 2,9523.0k $10.6k $10.6k 0.00% Reduced -409 -409
27 Quilter Plc 0.01% of their portfolio LONDON, X0 1,4341.4k $1.4m $1.4m 0.01% Unchanged
28 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 1,0351.0k $3.8k $3.8k 0.00% Unchanged
29 AlphaMark Advisors, LLC 0.00% of their portfolio FT. WRIGHT, KY 600600 $2.0k $2.0k 0.00% Unchanged
30 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 461461 $1.7k $1.7k 0.00% Added +6 +6
31 NFSG Corp 0.00% of their portfolio BOCA RATON, FL 417417 $1.5k $1.5k 0.00% Unchanged
32 Allworth Financial LP 0.00% of their portfolio FOLSOM, CA 292292 $1.1k $1.1k 0.00% Unchanged
33 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 198198 $713 $713 0.00% New
34 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 9191 $0 $0 0.00% New
35 Parkside Financial Bank & Trust 0.00% of their portfolio SAINT LOUIS, MO 1010 $36 $36 0.00% Unchanged
36 Silicon Valley Capital Partners 0.00% of their portfolio SAN JOSE, CA 99 $32 $32 0.00% Unchanged
37 CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio BIRMINGHAM, AL 00 $0 $0 0.00% Unchanged