TMC

TMC the metals Co Inc.

Metal MiningNasdaq<br>Emerging growth company

Total Trades

48

Buys

14

Sells

25

Largest Trade

N/A

Insiders

9

Institutional Funds

162

Inst. Value

$1M+

Activist Filings

24

Insider Trades

InsiderTitleTypeValueSharesPriceDate
O'Sullivan AnthonyChief Development …SELL$500K+100K$6.64Dec 2, 2025
ILVES ErikaChief Strategy Off…EXERCISE$1M+1.6M$0.65Sep 25, 2025
ILVES ErikaChief Strategy Off…GRANTN/A2.0MSep 25, 2025
ILVES ErikaChief Strategy Off…SELL$1M+1.6M$5.77Sep 25, 2025
O'Sullivan AnthonyChief Development …EXERCISE$100K–$500K250K$0.65Aug 29, 2025
O'Sullivan AnthonyChief Development …SELL$1M+585K$5.66Aug 29, 2025
May BrendanDirectorSELL$500K+69K$7.53Jun 28, 2025
Allseas Group S.A.10% OwnerBUYN/A2.3MMay 27, 2025
O'Sullivan AnthonyChief Development …SELL$500K+164K$4.49May 21, 2025
Shesky CraigCFOSELL$500K+354K$1.66Apr 2, 2025
ILVES ErikaChief Strategy Off…SELL$100K–$500K217K$1.11Jan 4, 2025
May BrendanDirectorBUY$15K–$50K25K$0.87Dec 27, 2024
Shesky CraigCFOSELL$15K–$50K48K$0.85Nov 28, 2024
Hall AndrewDirectorSELL$50K–$100K66K$0.93Nov 21, 2024
O'Sullivan AnthonyChief Development …SELL$100K–$500K100K$1.50May 31, 2024
O'Sullivan AnthonyChief Development …SELL$100K–$500K100K$1.42May 24, 2024
O'Sullivan AnthonyChief Development …SELL$50K–$100K50K$1.33Apr 1, 2024
Stone GregoryChief Ocean Scient…GRANTN/A12KMar 23, 2024
Stone GregoryChief Ocean Scient…SELL$50K–$100K64K$1.10Mar 23, 2024
Shesky CraigCFOSELL$100K–$500K233K$1.61Mar 23, 2024
Shesky CraigCFOGRANTN/A213KMar 23, 2024
Shesky CraigCFOEXERCISEN/A188KMar 23, 2024
O'Sullivan AnthonyChief Development …SELL$50K–$100K50K$1.38Nov 29, 2023
Shesky CraigCFOSELL$15K–$50K31K$1.26Nov 28, 2023
Stone GregoryChief Ocean Scient…SELL$15K–$50K25K$1.06Nov 22, 2023
Stone GregoryChief Ocean Scient…SELL$1K–$15K11K$1.00Sep 29, 2023
O'Sullivan AnthonyChief Development …SELL$100K–$500K140K$1.02Sep 29, 2023
Allseas Group S.A.10% OwnerBUYN/A7.7MAug 15, 2023
Karkar AndreiDirectorBUY$1M+4.0M$0.75Jun 9, 2023
Stone GregoryChief Ocean Scient…SELL$50K–$100K100K$0.74Apr 5, 2023
Stone GregoryChief Ocean Scient…GRANTN/A255KApr 5, 2023
O'Sullivan AnthonyChief Development …SELL$100K–$500K243K$0.74Apr 5, 2023
O'Sullivan AnthonyChief Development …GRANTN/A444KApr 5, 2023
Shesky CraigCFOSELL$50K–$100K126K$0.71Apr 5, 2023
Shesky CraigCFOGRANTN/A237KApr 5, 2023
Barron GerardCEOBUY$15K–$50K35K$0.71Mar 29, 2023
Barron GerardCEOBUY$15K–$50K42K$0.71Jan 3, 2023
Shesky CraigCFOSELL$15K–$50K37K$0.80Dec 1, 2022
O'Sullivan AnthonyChief Development …SELL$50K–$100K51K$1.04Oct 4, 2022
O'Sullivan AnthonyChief Development …SELL$50K–$100K51K$1.20Sep 21, 2022
Karkar AndreiDirectorBUY$1M+6.3M$0.80Aug 17, 2022
Barron GerardCEOBUY$50K–$100K104K$0.96Aug 17, 2022
Barron GerardCEOBUY$15K–$50K25K$1.01Jun 30, 2022
Karkar AndreiDirectorBUY$1M+2.1M$2.40Apr 1, 2022
Barron GerardCEOBUY$50K–$100K23K$2.19Apr 1, 2022
Hall AndrewDirectorBUY$50K–$100K28K$2.13Apr 1, 2022
Shesky CraigCFOBUY$15K–$50K15K$1.80Mar 30, 2022
Karkar AndreiDirectorBUY$1M+1.0M$2.09Jan 4, 2022
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Activist & 5%+ Owners

SC 13D/13G filings — investors holding 5%+ of outstanding shares

Brumder William George

SC 13G/A · Nov 28, 2025

7.6%

31.5M shares

Brumder William George

SC 13G/A · Sep 25, 2025

5.2%

21.1M shares

Brumder William George

SC 13G · Sep 24, 2025

5.4%

22.0M shares

Korea Zinc Company, Ltd.

SC 13G · Jul 2, 2025

7.2%

26.5M shares

FIRST MANHATTAN CO. LLC.

SC 13D/A · Jun 23, 2025

4.9%

17.6M shares

Allseas Group S.A.

SC 13D/A · May 27, 2025

16.3%

59.2M shares

FIRST MANHATTAN CO. LLC.

SC 13D · May 13, 2025

6.5%

23.0M shares

FIRST MANHATTAN CO. LLC.

SC 13G · Feb 14, 2025

6.9%

24.0M shares

Allseas Group S.A.

SC 13D/A · Aug 15, 2023

17.7%

54.5M shares

Andrei Karkar

SC 13D/A · Aug 14, 2023

220.0%

65.6M shares

Andrei Karkar

SC 13D/A · Jun 9, 2023

20.5%

58.1M shares

Maersk Supply Service A/S

SC 13G/A · Apr 28, 2023

2.2%

6.2M shares

Allseas Group S.A.

SC 13D/A · Mar 7, 2023

17.0%

45.1M shares

Maersk Supply Service A/S

SC 13G/A · Feb 14, 2023

7.1%

18.9M shares

Allseas Group S.A.

SC 13D/A · Aug 25, 2022

8.6%

22.7M shares

Andrei Karkar

SC 13D/A · Aug 16, 2022

20.2%

54.1M shares

Andrei Karkar

SC 13D/A · Apr 1, 2022

20.9%

47.8M shares

Glazer Capital, LLC

SC 13G/A · Feb 14, 2022

0.0%

0 shares

Periscope Capital Inc.

SC 13G/A · Feb 14, 2022

0.0%

0 shares

Integrated Core Strategies (US) LLC

SC 13G/A · Feb 14, 2022

0.0%

31K shares

0.0%

0 shares

Highbridge Capital Management, LLC

SC 13G/A · Jan 27, 2022

1.9%

4.5M shares

Andrei Karkar

SC 13D/A · Jan 5, 2022

20.1%

45.7M shares

Andrei Karkar

SC 13D/A · Jan 4, 2022

19.7%

44.7M shares

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