John D. Longley Jr. - 13 Oct 2025 Form 4 Insider Report for ODYSSEY MARINE EXPLORATION INC (OMEX)

Role: President & COO
Signature: John D Longley Jr
Issuer symbol: OMEX
Transactions as of: 13 Oct 2025
Net transactions value: -$882,813
Form type: 4
Filing time: 15 Oct 2025, 17:01:22 UTC
Previous filing: 03 Jul 2025
Next filing: 04 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Longley John D Jr	President & COO	205 S. HOOVER BLVD. STE #210, TAMPA	John D Longley Jr	15 Oct 2025	0001619958

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	OMEX	Common Stock	Options Exercise	$2,692	+6,500	+2.5%	$0.4141	262,862	13 Oct 2025	Direct
transaction	OMEX	Common Stock	Sale	$136,420	-38,977	-15%	$3.50	223,885	13 Oct 2025	Direct	F1
transaction	OMEX	Common Stock	Sale	$275,579	-73,572	-33%	$3.75	150,313	14 Oct 2025	Direct	F1
transaction	OMEX	Common Stock	Options Exercise	$59,423	+143,500	+95%	$0.4141	293,813	14 Oct 2025	Direct
transaction	OMEX	Common Stock	Sale	$532,930	-143,500	-49%	$3.71	150,313	14 Oct 2025	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	OMEX	Stock Option(Right to Buy)	Options Exercise	$0	-6,500	-4.3%	$0.000000	143,500	13 Oct 2025	Common Stock	6,500	$0.4141	Direct
transaction	OMEX	Stock Option(Right to Buy)	Options Exercise	$0	-143,500	-100%	$0.000000	0	14 Oct 2025	Common Stock	143,500	$0.4141	Direct

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

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).

Explanation of Responses:

Id	Content
F1	The securities were sold under a 10b5-1 Trading Plan adopted May 15, 2025 and were acquired upon the vesting of restricted stock units during the period 12/20/2015 through 12/13/2019. This transaction was executed in multiple trades at prices ranging from $3.50 to $4.4999 per share. . The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Content

The securities were sold under a 10b5-1 Trading Plan adopted May 15, 2025 and were acquired upon the vesting of restricted stock units during the period 12/20/2015 through 12/13/2019. This transaction was executed in multiple trades at prices ranging from $3.50 to $4.4999 per share. . The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.