TMC the metals Co Inc. (TMC) Insider Ownership

Historic Insider Ownership Trends

According to recent filings covering the 90 days ending January 14, 2026, the three most significant insider holders at TMC the metals are Director Andrei Karkar (61.28Mn shares), TenPercentOwner Group S.A. Allseas (55.11Mn shares), Chairman & Ceo Gerard Barron (40.99Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
Andrei Karkar 61,283,822 03 Jun, 2025
Group S.A. Allseas 55,113,601 27 May, 2025
Gerard Barron Chairman & Ceo 40,987,118 24 Mar, 2025
Michael Bernard Hess 7,737,530 04 Sep, 2025
Scott Honour 6,669,000 10 Sep, 2021
Scott Edward Leonard 6,669,000 15 Sep, 2021
Opportunities Holdings Llc Sustainable 6,669,000 10 Sep, 2021
Andrew Carlyle Greig 5,070,030 09 Jan, 2026
Erika Ilves Chief Strategy Officer 4,791,366 24 Sep, 2025
Anthony O'Sullivan Chief Development Officer 2,600,777 02 Dec, 2025
Alex Spiro 1,750,000 04 Sep, 2025
Craig Shesky Chief Financial Officer 1,145,717 02 Apr, 2025
Gregory Stone Chief Ocean Scientist 385,365 22 Nov, 2023
Andrew Hall 359,267 05 Jun, 2025
Christian Madsbjerg 331,620 03 Jun, 2025
Sheila Khama 319,754 03 Jun, 2025
Amelia Kinahoi Siamomua 294,452 03 Jun, 2025
Christelle Gedeon Clo & Corporate Secretary 287,519 22 Feb, 2022
Brendan May 197,586 27 Jun, 2025
Kathleen S Mcallister 137,543 18 Aug, 2023
Justin Kelly 30,000 10 Sep, 2021
Isaac Barchas 30,000 10 Sep, 2021
Rick Gaenzle 30,000 10 Sep, 2021
Gina Stryker 8,032 15 Sep, 2021

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
08 Jan, 2026 Andrew Carlyle Greig Common Shares A 31,602 $0.65 5,070,030 D M
08 Jan, 2026 Andrew Carlyle Greig Common Shares A 578,931 $2.60 5,038,428 D M
08 Jan, 2026 Andrew Carlyle Greig Common Shares A 11,578 $0.52 4,459,497 D M
02 Dec, 2025 Anthony O'Sullivan - - 2,025,667 D
02 Dec, 2025 Anthony O'Sullivan Common Shares D 50,000 $6.77 2,025,667 D S
28 Nov, 2025 Anthony O'Sullivan - - 2,075,667 D
28 Nov, 2025 Anthony O'Sullivan Common Shares D 50,000 $6.51 2,075,667 D S
24 Sep, 2025 Erika Ilves - - 4,507,869 D
24 Sep, 2025 Erika Ilves - - 4,245,760 D
24 Sep, 2025 Erika Ilves - - 4,760,684 D
24 Sep, 2025 Erika Ilves Common Shares A 1,099,968 $0.65 4,245,760 D M
24 Sep, 2025 Erika Ilves Common Shares A 252,815 $0.65 4,760,684 D M
24 Sep, 2025 Erika Ilves Common Shares A 262,109 $0.65 4,507,869 D M
23 Sep, 2025 Anthony O'Sullivan Common Shares A 1,000,000 $0.00 2,125,667 D A
23 Sep, 2025 Erika Ilves - - 3,145,792 D
23 Sep, 2025 Erika Ilves Common Shares A 2,000,000 $0.00 3,145,792 D A
22 Sep, 2025 Erika Ilves - - 1,145,792 D
22 Sep, 2025 Erika Ilves Common Shares D 1,591,485 $5.77 1,145,792 D S
02 Sep, 2025 Alex Spiro Common Shares A 1,750,000 $0.00 1,750,000 D A
02 Sep, 2025 Michael Bernard Hess Common Shares A 7,500,000 $0.00 7,737,530 D A