TMC the metals company Inc. (TMC) has 20 known insider and institutional holders on record. The largest holder is ERAS Capital LLC with 51,955,976 shares. Other notable holders include Barron Gerard and Honour Scott.
Over the last 12 months, insiders have made 33 transactions in TMC stock — 17 buys (valued at $10.5M) and 9 sells (valued at $12.85M). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
TMC Insider Ownership
Top Holder
ERAS Capital LLC
51,955,976 shares
Buys (12 mo)
17
$10.5M value
Sells (12 mo)
9
$12.85M value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Eras Capital Llc |
Director |
51,955,976 |
2022-08-16 |
|
| 2 |
Barron Gerard |
Chairman & CEO |
39,389,048 |
2025-03-24 |
|
| 3 |
Honour Scott |
10 Percent Owner |
7,410,000 |
2020-06-22 |
|
| 4 |
Sustainable Opportunities Holdings Llc |
10 Percent Owner |
7,410,000 |
2020-06-22 |
|
| 5 |
Greig Andrew Carlyle |
Director |
4,425,548 |
2025-06-03 |
|
| 6 |
Allseas Group S.a. |
10 Percent Owner |
2,333,333 |
2025-05-27 |
|
| 7 |
O'sullivan Anthony |
Chief Development Officer |
2,075,667 |
2025-12-02 |
|
| 8 |
Spiro Alex |
Director |
1,750,000 |
2025-09-04 |
|
| 9 |
Shesky Craig |
Chief Financial Officer |
1,719,519 |
2026-03-26 |
|
| 10 |
Ilves Erika |
Chief Strategy Officer |
1,145,792 |
2025-09-24 |
|
| 11 |
Jurvetson Stephen T |
Director |
700,000 |
2024-04-11 |
|
| 12 |
Stone Gregory |
Chief Ocean Scientist |
370,876 |
2024-03-22 |
|
| 13 |
Hall Andrew |
Director |
359,267 |
2025-06-05 |
|
| 14 |
Madsbjerg Christian |
Director |
309,249 |
2025-06-03 |
|
| 15 |
Khama Sheila |
Director |
297,383 |
2025-06-03 |
|
| 16 |
Siamomua Amelia Kinahoi |
Director |
294,452 |
2025-06-03 |
|
| 17 |
Gedeon Christelle |
CLO & Corporate Secretary |
287,519 |
2022-02-22 |
|
| 18 |
Mcallister Kathleen S |
Other: Former Director |
282,450 |
2024-06-04 |
|
| 19 |
May Brendan |
Director |
266,790 |
2025-06-03 |
|
| 20 |
Hess Michael Bernard |
Director |
237,530 |
2025-09-04 |
|
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 |
| 2025-06-16 |
Spiro Alex |
Director |
Unknown |
- |
- |
- |
| 2025-06-04 |
Hall Andrew |
Director |
RSU Award |
66,508 |
- |
- |
| 2025-05-30 |
May Brendan |
Director |
RSU Award |
22,371 |
- |
- |