STOCK TITAN

Odyssey Marine (OMEX) CEO nets shares after RSU vesting and tax withholding

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Odyssey Marine Exploration Chief Executive Officer Mark Gordon reported routine equity compensation activity involving Restricted Stock Units and related tax withholding. On June 30, 2026, 4,167 RSUs were exercised into an equal number of common shares at a stated price of $0.0000 per share, recorded as a grant or award acquisition. To cover tax obligations, 1,139 common shares were disposed of at $0.8504 per share through a tax-withholding mechanism, rather than an open-market sale. Following these transactions, Gordon directly holds 636,402 shares of Odyssey Marine common stock. A footnote explains that each RSU represents a contingent right to receive one share of OMEX common stock and that RSUs vest in six equal installments on June 30 and December 20 in 2026, 2027 and 2028.

Positive

  • None.

Negative

  • None.
Insider Gordon Mark
Role Chief Executive Officer
Type Security Shares Price Value
Exercise Restricted Stock Unit (RSU) 4,167 $0.00 --
Grant/Award Common Stock 4,167 $0.00 --
Tax Withholding Common Stock 1,139 $0.8504 $968.61
Holdings After Transaction: Restricted Stock Unit (RSU) — 20,833 shares (Direct, null); Common Stock — 636,402 shares (Direct, null)
Footnotes (1)
  1. Each Restricted Stock Unit represents a contingent right to receive one share of OMEX common stock. Restricted Stock Units vest in six equal annual installments on June 30 and December 20, 2026, 2027 and 2028.
RSUs exercised 4,167 units Restricted Stock Units converted into common stock on June 30, 2026
Tax-withholding shares 1,139 shares Common shares disposed to satisfy tax obligations at $0.8504 per share
Grant price per share $0.0000 per share Price for 4,167 common shares received via grant/award acquisition
CEO holdings after transaction 636,402 shares Common stock directly owned by Mark Gordon following June 30, 2026 events
Tax-withholding share price $0.8504 per share Value assigned to 1,139 shares used for tax withholding
RSU vesting schedule 6 equal installments RSUs vest on June 30 and December 20 in 2026, 2027 and 2028
Restricted Stock Unit (RSU) financial
"Each Restricted Stock Unit represents a contingent right to receive one share of OMEX 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.
tax-withholding disposition financial
"transaction_action: tax-withholding disposition"
A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.
grant, award, or other acquisition financial
"transaction_code_description: Grant, award, or other acquisition"
Exercise or conversion of derivative security financial
"transaction_code_description: Exercise or conversion of derivative security"
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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED 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*
Gordon Mark

(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)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
Chief Executive Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/30/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock06/30/2026A4,167A$0636,402D
Common Stock06/30/2026F1,139D$0.8504635,263D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Unit (RSU)(1)$006/30/2026M4,167 (2)06/30/2026Common stock4,167$020,833D
Explanation of Responses:
1. Each Restricted Stock Unit represents a contingent right to receive one share of OMEX common stock.
2. Restricted Stock Units vest in six equal annual installments on June 30 and December 20, 2026, 2027 and 2028.
/s/ Mark D. Gordon07/01/2026
** Signature of Reporting PersonDate
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)

FAQ

What insider transactions did OMEX CEO Mark Gordon report on this Form 4?

Mark Gordon reported RSU-related equity compensation activity. He exercised 4,167 Restricted Stock Units into common shares and had 1,139 shares withheld to satisfy tax obligations, ending with 636,402 OMEX common shares held directly.

How many Odyssey Marine (OMEX) shares does the CEO hold after these transactions?

After the reported transactions, CEO Mark Gordon directly holds 636,402 shares of Odyssey Marine common stock. This figure reflects the new RSU-derived shares received and the 1,139 shares disposed of through tax withholding on June 30, 2026.

Were Mark Gordon’s OMEX transactions open-market buys or sells?

The transactions were not open-market buys or sells. The filing shows an RSU exercise and grant acquisition plus a tax-withholding disposition of 1,139 shares, used to cover obligations rather than representing discretionary market selling or buying activity.

What are the terms of Mark Gordon’s Restricted Stock Units at Odyssey Marine (OMEX)?

Each Restricted Stock Unit represents a contingent right to receive one OMEX common share. The footnotes state that these RSUs vest in six equal annual installments on June 30 and December 20 in 2026, 2027 and 2028, subject to standard conditions.

How many OMEX shares were involved in the CEO’s tax-withholding disposition?

The CEO had 1,139 common shares disposed of to cover tax obligations. These shares were valued at $0.8504 per share in the filing and represent a mechanistic tax-withholding event tied to equity compensation, not a conventional market sale.