TMC the metals TMC Insider Ownership

NASDAQ TMC
$4.10 -0.18 (-4.21%)
As of: Sep 10, 2026 · 1:24 PM EDT

Insider Holdings by Owner

130.85Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
0.034%
■0% pp QoQ
Shares Held by Insiders
137.54K
filed for Sep 2026
■0.00% QoQ
Shares Outstanding
405.51Mn
405,506,978 shares
Direct Holdings
137.54K
Indirect: 0
Net Shares Traded (QoQ)
0
no net change in Sep 2026
Insiders Holding Shares
17
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter —
Net over range —
Buying quarters —

Insider Ownership Summary

Quarter ending 30 Sep, 2026

TMC's three largest insider shareholders as of September 09, 2026 are Group S.A. Allseas (TenPercentOwner, 62.42Mn shares), Andrei Karkar (Director, 60.95Mn shares), Group S.A. Allseas (TenPercentOwner, 55.11Mn shares).

Form 4 Holdings

Insiders Holding TMC

Insiders 17
Shares held 130.85Mn
Of outstanding 32.27%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Group S.A. Allseas TenPercentOwner 62,419,168 0 62,419,168 47.7% 07 Jul, 2026
2 Gerard Barron Chairman Ceo 41,803,445 0 41,803,445 31.9% 15 Apr, 2026
3 Michael Bernard Hess Director 7,737,530 0 7,737,530 5.9% 04 Sep, 2025
4 Erika Ilves Chief Strategy Officer 5,214,199 0 5,214,199 4.0% 15 Apr, 2026
5 Andrew Carlyle Greig Director 5,106,850 0 5,106,850 3.9% 02 Jun, 2026
6 Anthony O'Sullivan Chief Development Officer 2,025,667 0 2,025,667 1.5% 02 Dec, 2025
7 Craig Shesky Chief Financial Officer 1,879,356 0 1,879,356 1.4% 15 Apr, 2026
8 Alex Spiro Director 1,750,000 0 1,750,000 1.3% 04 Sep, 2025
9 Andrei Karkar Director, TenPercentOwner 459,996 0 459,996 0.4% 02 Jun, 2026
10 Christian Madsbjerg Director 410,403 0 410,403 0.3% 02 Jun, 2026
11 Andrew Hall Director 394,058 0 394,058 0.3% 02 Jun, 2026
12 Gregory Stone Chief Ocean Scientist 385,365 0 385,365 0.3% 22 Nov, 2023
13 Sheila Khama Director 353,598 0 353,598 0.3% 02 Jun, 2026
14 Amelia Kinahoi Siamomua Director 294,452 0 294,452 0.2% 03 Jun, 2025
15 Christelle Gedeon Clo Corporate Secretary 287,519 0 287,519 0.2% 22 Feb, 2022
16 Brendan May Director 193,346 0 193,346 0.1% 02 Jun, 2026
17 Kathleen S Mcallister Director 137,543 0 137,543 0.1% 18 Aug, 2023

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

356 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
01 Jul, 2026 Group S.A. Allseas TenPercentOwner Acquired P 7,305,567 — — 62,419,168 Direct
29 May, 2026 Andrei Karkar Director, TenPercentOwner Acquired A 17,857 $0.00 $0 443,468 Direct
29 May, 2026 Brendan May Director Acquired A 16,528 $0.00 $0 214,114 Direct
29 May, 2026 Andrew Hall Director Acquired A 18,263 $0.00 $0 377,530 Direct
29 May, 2026 Andrew Carlyle Greig Director Acquired A 20,292 $0.00 $0 5,090,322 Direct
29 May, 2026 Christian Madsbjerg Director Acquired A 19,075 $0.00 $0 393,875 Direct
29 May, 2026 Sheila Khama Director Acquired A 17,316 $0.00 $0 337,070 Direct
29 May, 2026 Christian Madsbjerg Director Acquired A 16,528 $0.00 $0 410,403 Direct
29 May, 2026 Andrew Hall Director Acquired A 16,528 $0.00 $0 394,058 Direct
29 May, 2026 Andrei Karkar Director, TenPercentOwner Acquired A 16,528 $0.00 $0 459,996 Direct
29 May, 2026 Sheila Khama Director Acquired A 16,528 $0.00 $0 353,598 Direct
02 Jun, 2026 Brendan May Director Disposed S 20,768 $6.42 $133.33K 193,346 Direct
29 May, 2026 Andrew Carlyle Greig Director Acquired A 16,528 $0.00 $0 5,106,850 Direct
13 Apr, 2026 Craig Shesky Chief Financial Officer Acquired A 453,515 $0.00 $0 1,879,356 Direct
13 Apr, 2026 Gerard Barron Chairman Ceo Acquired A 816,327 $0.00 $0 41,803,445 Direct
13 Apr, 2026 Erika Ilves Chief Strategy Officer Acquired A 453,515 $0.00 $0 5,214,199 Direct
24 Mar, 2026 Craig Shesky Chief Financial Officer Disposed S 51,941 $4.74 $246.10K 1,719,519 Direct
25 Mar, 2026 Craig Shesky Chief Financial Officer Disposed S 78,186 $4.58 $358.25K 1,641,333 Direct
26 Mar, 2026 Craig Shesky Chief Financial Officer Disposed S 215,492 $4.53 $976.83K 1,425,841 Direct
20 Mar, 2026 Craig Shesky Chief Financial Officer Acquired M 187,662 $0.00 $0 1,396,583 Direct