TMC the metals company Inc. TMCWW NASDAQ

NASDAQ Global Select • Basic Materials • Industrial Materials • CA • USD

TMC the metals company Inc. (TMCWW) has 20 known insider and institutional holders on record. The largest holder is Allseas Group S.A. with 49,280,268 shares. Other notable holders include Honour Scott and Sustainable Opportunities Holdings LLC.

Over the last 12 months, insiders have made 22 transactions in TMCWW stock — 8 buys (valued at RSU Award) and 8 sells (valued at $12.12M).

TMCWW Insider Ownership

Top Holder

Allseas Group S.A.

49,280,268 shares

Buys (12 mo)

$0.00 value

Sells (12 mo)

$12.12M value

12-Month Transaction Activity

Buy 36%

Sell 36%

Top Insider Holders

#	Name	Role	Shares Owned	Last Filed	Relative Size
1	Allseas Group S.a.	10 Percent Owner	49,280,268	2023-08-15	100%
2	Honour Scott	10 Percent Owner	7,410,000	2020-06-22	15%
3	Sustainable Opportunities Holdings Llc	10 Percent Owner	7,410,000	2020-06-22	15%
4	Greig Andrew Carlyle	Director	4,095,827	2022-10-12	8%
5	O'sullivan Anthony	Chief Development Officer	2,075,667	2025-12-02	4%
6	Spiro Alex	Director	1,750,000	2025-09-04	4%
7	Shesky Craig	Chief Financial Officer	1,719,519	2026-03-26	3%
8	Ilves Erika	Chief Strategy Officer	1,145,792	2025-09-24	2%
9	Stone Gregory	Chief Ocean Scientist	385,365	2023-11-22	1%
10	Gedeon Christelle	CLO & Corporate Secretary	287,519	2022-02-22	1%
11	Hess Michael Bernard	Director	237,530	2025-09-04	0%
12	Barron Gerard	Chief Executive Officer	50,000	2023-08-18	0%
13	Stryker Gina	Director	11,365	2022-07-18	0%
14	Hall Andrew	Director	8,032	2021-09-15	0%
15	Madsbjerg Christian	Director	8,032	2021-09-15	0%
16	Leonard Scott Edward	Director	8,032	2021-09-15	0%
17	Siamomua Amelia Kinahoi	Director	8,032	2021-09-15	0%
18	Mcallister Kathleen S	Director	2,500	2023-08-18	0%
19	Karkar Andrei	10 Percent Owner	2,078	2026-02-10	0%
20	Khama Sheila	Director	1,250	2023-08-18	0%

Recent Transactions (last 12 months)

Date	Name	Role	Type	Shares	Price	Value
2026-03-26	Shesky Craig	Chief Financial Officer	Informative Sell	215,492	$4.53	$976.83K
2026-03-25	Shesky Craig	Chief Financial Officer	Informative Sell	78,186	$4.58	$358.25K
2026-03-24	Shesky Craig	Chief Financial Officer	Informative Sell	51,941	$4.74	$246.1K
2026-03-20	Shesky Craig	Chief Financial Officer	Option Exercise (Sell)	187,662	-	-
2026-02-06	Madsbjerg Christian	Director	Option Exercise (Sell)	11,578	$0.52	$6.02K
2026-02-06	Karkar Andrei	10 Percent Owner	Option Exercise	689	-	-
2026-02-10	Shesky Craig	Chief Financial Officer	Option Exercise	1,379	-	-
2026-02-03	Karkar Andrei	10 Percent Owner	Option Exercise (Sell)	63,682	$0.52	$33.11K
2026-01-08	Greig Andrew Carlyle	Director	Option Exercise (Sell)	11,578	$0.52	$6.02K
2025-12-08	O'sullivan Anthony	Officer	Unknown	-	-	-
2025-12-02	O'sullivan Anthony	Chief Development Officer	Informative Sell	50,000	$6.77	$338.5K
2025-11-28	O'sullivan Anthony	Chief Development Officer	Informative Sell	50,000	$6.51	$325.5K
2025-09-24	Ilves Erika	Chief Strategy Officer	Option Exercise (Sell)	262,109	$0.65	$170.37K
2025-09-23	Ilves Erika	Chief Strategy Officer	RSU Award	2,000,000	-	-
2025-09-22	Ilves Erika	Chief Strategy Officer	Informative Sell	1,591,485	$5.77	$9.18M
2025-09-23	Shesky Craig	Chief Financial Officer	RSU Award	2,000,000	-	-
2025-09-23	O'sullivan Anthony	Chief Development Officer	RSU Award	1,000,000	-	-
2025-09-02	Hess Michael Bernard	Director	RSU Award	237,530	-	-
2025-09-02	Spiro Alex	Director	RSU Award	1,750,000	-	-
2025-08-26	O'sullivan Anthony	Chief Development Officer	Option Exercise	10,909	-	-
2025-06-09	O'sullivan Anthony	Chief Development Officer	Informative Sell	50,000	$4.20	$210K
2025-05-27	O'sullivan Anthony	Chief Development Officer	Informative Sell	100,000	$4.78	$478K