Odyssey Marine Exploration, Inc. OMEX NASDAQ

NASDAQ Capital Marke • Industrials • Specialty Business Services • US • USD

Odyssey Marine Exploration, Inc. (OMEX) has 20 known insider and institutional holders on record. The largest holder is Greywolf Capital Management LP with 6,051,932 shares. Other notable holders include MACDOUGALD JAMES E and Cortina Gallardo Juan Antonio Carlos.

Over the last 12 months, insiders have made 24 transactions in OMEX stock — 4 buys (valued at $929.23K) and 9 sells (valued at $2.31M). Insider selling has exceeded buying during this period.

OMEX Insider Ownership

Top Holder

Greywolf Capital Management LP

6,051,932 shares

Buys (12 mo)

$929.23K value

Sells (12 mo)

$2.31M value

12-Month Transaction Activity

Buy 17%

Sell 38%

Top Insider Holders

#	Name	Role	Shares Owned	Last Filed	Relative Size
1	Greywolf Capital Management Lp	10 Percent Owner, Other: Member of Group Owning 10%	6,051,932	2026-03-12	100%
2	Macdougald James E	10 Percent Owner	3,594,008	2004-09-28	59%
3	Cortina Gallardo Juan Antonio Carlos	10 Percent Owner	1,939,468	2025-08-13	32%
4	Saul David J	Director	1,212,482	2015-12-22	20%
5	Fourworld Capital Management Llc	10 Percent Owner	905,399	2021-03-22	15%
6	Justh Mark B	Director	859,207	2025-07-03	14%
7	Gordon Mark	Chief Executive Officer	542,235	2025-10-20	9%
8	Morris David A	Secretary	418,272	2012-03-09	7%
9	Delauze Henri F	Director	200,000	2004-04-05	3%
10	Stemm Gregory P	Director	150,000	2015-01-06	2%
11	Longley John D Jr	President & COO	143,500	2025-10-15	2%
12	Bederman David J	Director	91,230	2011-03-09	2%
13	Siegel Todd E	Director	84,988	2025-04-15	1%
14	Pignatelli James S	Director	64,348	2023-01-19	1%
15	Holmes Michael J	CFO	57,870	2013-01-07	1%
16	Jones Christopher Emlyn	Chief Financial Officer	40,932	2022-12-13	1%
17	Morris John C	President and Co-chairman	37,500	2007-12-14	1%
18	Barton Laura Lionetti	Chief Business Officer	37,142	2022-12-13	1%
19	Becker George J Jr	Executive Vice President	33,400	2007-05-24	1%
20	Devine Philip S	CFO	30,417	2015-12-22	1%

Recent Transactions (last 12 months)

Date	Name	Role	Type	Shares	Price	Value
2026-03-02	Greywolf Capital Management Lp	10 Percent Owner, Other: Member of Group Owning 10%	Unknown	-	-	-
2023-12-01	Greywolf Capital Management Lp	10 Percent Owner, Other: Member of Group Owning 10%	Unknown	35,260	$2.05	$72.28K
2022-12-10	Greywolf Capital Management Lp	10 Percent Owner, Other: Member of Group Owning 10%	Unknown	342,391	$3.35	$1.15M
2025-10-20	Gordon Mark	Chief Executive Officer	Informative Sell	30,000	$3.56	$106.9K
2025-10-17	Gordon Mark	Chief Executive Officer	Informative Sell	30,000	$3.50	$105K
2025-10-16	Gordon Mark	Chief Executive Officer	Informative Sell	30,000	$3.87	$116.04K
2025-10-14	Longley John D Jr	President & COO	Option Exercise (Sell)	143,500	$0.41	$59.42K
2025-10-13	Longley John D Jr	President & COO	Option Exercise (Sell)	6,500	$0.41	$2.69K
2025-10-15	Gordon Mark	Chief Executive Officer	Informative Sell	30,000	$3.98	$119.37K
2025-10-14	Gordon Mark	Chief Executive Officer	Informative Sell	30,000	$3.74	$112.09K
2025-10-13	Gordon Mark	Chief Executive Officer	Informative Sell	20,956	$3.50	$73.35K
2025-08-14	Cortina Gallardo Juan Antonio Carlos	10 Percent Owner	Unknown	-	-	-
2025-07-31	Cortina Gallardo Juan Antonio Carlos	10 Percent Owner	Option Exercise (ITM)	1,939,468	$1.10	$2.13M
2025-07-29	Cortina Gallardo Juan Antonio Carlos	10 Percent Owner	Other (Sell)	1,991,998	-	-
2025-07-25	Cortina Gallardo Juan Antonio Carlos	10 Percent Owner	Other (Sell)	1,939,468	$1.10	$2.13M
2025-07-22	Cortina Gallardo Juan Antonio Carlos	10 Percent Owner	Informative Sell	409,100	$1.70	$696.66K
2025-07-18	Cortina Gallardo Juan Antonio Carlos	10 Percent Owner	Informative Sell	473,591	$1.72	$816.71K
2025-07-17	Cortina Gallardo Juan Antonio Carlos	10 Percent Owner	Informative Sell	96,409	$1.70	$164.16K
2025-06-30	Cortina Gallardo Juan Antonio Carlos	10 Percent Owner	Option Exercise (ITM)	489,279	$1.10	$538.21K
2025-04-25	Cortina Gallardo Juan Antonio Carlos	10 Percent Owner	Unknown	2,428,747	$1.10	$2.67M
2025-07-15	Pommeraud Larissa Tiffany	Director	RSU Award	8,475	-	-
2025-06-27	Longley John D Jr	President & COO	RSU Award	144,466	$1.04	$150K
2025-06-27	Justh Mark B	Director	RSU Award	385,242	$1.04	$400K
2025-06-27	Gordon Mark	Chief Executive Officer	RSU Award	365,242	$1.04	$379.23K