What does the 20,000 share RSU exercise mean for Odyssey Marine Exploration (OMEX) insider ownership?

The 20,000 share RSU exercise increased Mark B. Justh’s direct Common Stock holdings to 879,207 shares. It also eliminated the corresponding RSU derivative position, as the reported RSU balance after the transaction is zero in this Form 4.

Odyssey Marine (OMEX) director exercises 20,000 RSUs into Common Stock

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Odyssey Marine Exploration director Mark B. Justh exercised 20,000 Restricted Stock Units into Common Stock. The RSUs converted at $0.00 per share on June 1, 2026, increasing his direct Common Stock holdings to 879,207 shares. After these transactions, he also reports indirect ownership of 77,159 Common Stock shares held by his spouse and 834 Common Stock shares held through an LLC. The filing shows a compensation-related derivative exercise rather than open-market buying or selling, and no remaining RSU position is listed after the conversion.

Insider Trade Summary

20,000 shares exercised/converted

Mixed 4 txns

Insider Justh Mark B

Role null

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Unit (RSU)	20,000	$0.00	--
Exercise	Common Stock	20,000	$0.00	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Restricted Stock Unit (RSU) — 0 shares (Direct, null); Common Stock — 879,207 shares (Direct, null); Common Stock — 834 shares (Indirect, Indirect Ownership LLC)

Footnotes (1)

[object Object]

Key Figures

RSUs exercised: 20,000 shares Exercise price: $0.00 per share Direct holdings after transaction: 879,207 shares +2 more

5 metrics

RSUs exercised 20,000 shares Restricted Stock Units converted to Common Stock on June 1, 2026

Exercise price $0.00 per share Conversion price for 20,000 RSUs into Common Stock

Direct holdings after transaction 879,207 shares Common Stock directly owned by Mark B. Justh following RSU exercise

Indirect spouse holdings 77,159 shares Common Stock reported as indirectly owned through spouse

Indirect LLC holdings 834 shares Common Stock reported as indirectly owned via LLC

Key Terms

Restricted Stock Unit (RSU), Exercise or conversion of derivative security, Indirect Ownership LLC

3 terms

Restricted Stock Unit (RSU) financial

"Restricted Stock Unit (RSU) transaction converting 20,000 units into Common Stock"

A restricted stock unit (RSU) is a promise from a company to give an employee company shares (or cash equal to their value) at a future date if certain conditions are met, such as staying with the company or hitting performance targets. For investors, RSUs matter because when they convert into actual shares they increase the number of shares available and can create selling pressure as employees cash out—think of them as a future paycheck paid in company stock.

Exercise or conversion of derivative security financial

"transaction_code_description: Exercise or conversion of derivative security"

Indirect Ownership LLC financial

"nature_of_ownership: Indirect Ownership LLC"

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Form 4 Insider Transactions: What Each Field Means →

06/03/2026 - 04:05 PM

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Justh Mark B

(Last)

(First)

(Middle)

205 S. HOOVER BLVD SUITE #210

(Street)

TAMPA

FLORIDA

33609

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
ODYSSEY MARINE EXPLORATION INC [ "OMEX" ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/01/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	06/01/2026		M⁽¹⁾		20,000	A	$0	879,207	D
Common Stock								834	I	Indirect Ownership LLC
Common Stock								77,159	I	Indirect By Spouse

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Unit (RSU)	$0.00	06/01/2026		M			20,000	06/01/2026	06/01/2026	Common Stock	20,000	$0	0	D

Explanation of Responses:

1. Restricted Stock Awards vest on June 1, 2026

	/s/ Mark B. Justh	06/02/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did Mark B. Justh report at Odyssey Marine Exploration (OMEX)?

Mark B. Justh reported exercising 20,000 Restricted Stock Units into Common Stock at $0.00 per share. This compensation-related derivative exercise increased his direct Common Stock holdings to 879,207 shares without any open-market buying or selling activity disclosed.

How many Odyssey Marine Exploration (OMEX) shares does Mark B. Justh hold after this Form 4?

After the reported transactions, Mark B. Justh holds 879,207 Common Stock shares directly. He also reports indirect ownership of 77,159 Common Stock shares through his spouse and 834 Common Stock shares through an LLC entity associated with him.

Were the Odyssey Marine Exploration (OMEX) transactions open-market purchases or sales?

The filing shows no open-market purchases or sales. Instead, it records a derivative exercise where 20,000 Restricted Stock Units converted into Common Stock at $0.00 per share, a typical compensation-related vesting and conversion event for an insider.

How are indirect Odyssey Marine Exploration (OMEX) holdings reported for Mark B. Justh?

Indirect holdings are reported separately from direct ownership. The Form 4 lists 77,159 Common Stock shares held indirectly through his spouse and 834 Common Stock shares held indirectly via an LLC, both categorized as indirect ownership interests.