TMC Insider Trading
TMC | Market Equity
Comprehensive Trading Performance Summary
The investment history of corporate insiders at TMC provides a unique lens into the internal conviction of the company's leadership. By analyzing SEC Form 4 filings, investors can track how directors and officers are allocating their own capital. High-conviction buying often signals that management believes the current market price significantly undervalues future growth prospects, while strategic selling might occur for personal liquidity or portfolio diversification. Monitoring these shifts in ownership is essential for understanding the alignment between management and shareholders in the Market Equity sector.
Transactions on Chart
Open Full Chart| Filing Date | Trade Date | Reporting Person | Relationship | Type | Price | Qty | Total, $ | Owned After | Change, % |
|---|---|---|---|---|---|---|---|---|---|
| 2025-12-03 02:07 | 2025-11-28 | O'Sullivan Anthony | Officer - Chief Development Officer | SELL | $6.64 | 100,000 | $664,000 | 2,025,667 | -4.7% |
| 2025-09-25 04:05 | 2025-09-22 | ILVES Erika | Officer - Chief Strategy Officer | OPT+S | $5.77 | 1,591,485 | $9,182,868 | 1,145,792 | 0.0% |
| 2025-08-29 03:00 | 2025-05-27 | O'Sullivan Anthony | Officer - Chief Development Officer | OPT+S | $5.66 | 585,110 | $3,313,653 | 0 | 0.0% |
| 2025-06-28 04:00 | 2025-06-25 | May Brendan | Director | SELL | $7.53 | 69,204 | $521,431 | 197,586 | -25.9% |
| 2025-05-28 01:20 | 2025-05-22 | Allseas Group S.A. | 10% owner | BUY | $0.00 | 2,333,333 | $0 | 55,113,601 | +4.4% |
| 2025-05-22 01:04 | 2025-05-21 | O'Sullivan Anthony | Officer - Chief Development Officer | SELL | $4.49 | 164,317 | $738,260 | 1,125,667 | -12.7% |
| 2025-04-02 17:47 | 2025-04-01 | Shesky Craig | Officer - Chief Financial Officer | SELL | $1.66 | 353,702 | $585,518 | 1,145,717 | -23.6% |
| 2025-03-07 00:01 | 2025-03-04 | May Brendan | Director | SELL | $1.67 | 8,916 | $14,890 | 108,365 | -7.6% |
| 2025-01-04 05:05 | 2024-12-30 | ILVES Erika | Officer - Chief Strategy Officer | SELL | $1.11 | 217,099 | $240,980 | 998,170 | -17.9% |
| 2024-12-27 23:53 | 2024-12-24 | May Brendan | Director | BUY | $0.87 | 25,000 | $21,870 | 100,040 | +33.3% |
| 2024-11-28 04:24 | 2024-11-27 | Shesky Craig | Officer - Chief Financial Officer | SELL | $0.85 | 47,523 | $40,185 | 977,844 | -4.6% |
| 2024-11-22 02:40 | 2024-11-19 | Hall Andrew | Director | SELL | $0.93 | 66,000 | $61,538 | 182,966 | -26.5% |
| 2024-06-01 00:57 | 2024-05-29 | O'Sullivan Anthony | Officer - Chief Development Officer | SELL | $1.50 | 100,000 | $149,790 | 746,829 | -11.8% |
| 2024-05-24 04:45 | 2024-05-21 | O'Sullivan Anthony | Officer - Chief Development Officer | SELL | $1.42 | 100,000 | $141,850 | 846,829 | -10.6% |
| 2024-04-01 23:01 | 2024-03-28 | O'Sullivan Anthony | Officer - Chief Development Officer | SELL | $1.33 | 50,000 | $66,740 | 946,829 | -5.0% |
| 2024-03-23 04:33 | 2023-09-28 | Stone Gregory | Officer - Chief Ocean Scientist | SELL | $1.10 | 64,489 | $70,977 | 320,876 | -16.7% |
| 2024-03-23 04:33 | 2024-03-22 | Shesky Craig | Officer - Chief Financial Officer | OPT+S | $1.61 | 233,424 | $375,509 | 947,242 | 0.0% |
| 2023-11-30 00:02 | 2023-11-27 | O'Sullivan Anthony | Officer - Chief Development Officer | SELL | $1.38 | 50,000 | $69,000 | 385,110 | -11.5% |
| 2023-11-28 04:50 | 2023-11-27 | Shesky Craig | Officer - Chief Financial Officer | SELL | $1.26 | 31,057 | $39,036 | 779,641 | -3.8% |
| 2023-11-23 00:02 | 2023-11-20 | Stone Gregory | Officer - Chief Ocean Scientist | SELL | $1.06 | 25,000 | $26,425 | 385,365 | -6.1% |
| 2023-09-29 04:55 | 2023-09-27 | Stone Gregory | Officer - Chief Ocean Scientist | SELL | $1.00 | 10,511 | $10,523 | 410,365 | -2.5% |
| 2023-09-29 04:52 | 2023-09-26 | O'Sullivan Anthony | Officer - Chief Development Officer | SELL | $1.02 | 140,000 | $142,128 | 435,110 | -24.3% |
| 2023-08-15 23:16 | 2023-08-01 | Allseas Group S.A. | 10% owner | BUY | $0.00 | 7,650,000 | $0 | 52,780,268 | +17.0% |
| 2023-06-09 15:00 | 2023-06-08 | Karkar Andrei | Director, 10% owner | BUY | $0.75 | 3,997,519 | $2,998,139 | 55,953,495 | +7.7% |
| 2023-04-05 23:04 | 2023-03-29 | Stone Gregory | Officer - Chief Ocean Scientist | SELL | $0.74 | 100,000 | $74,090 | 420,876 | -19.2% |
| 2023-04-05 23:03 | 2023-03-28 | O'Sullivan Anthony | Officer - Chief Development Officer | SELL | $0.74 | 243,223 | $178,915 | 512,777 | -32.2% |
| 2023-04-05 23:02 | 2023-03-28 | Shesky Craig | Officer - Chief Financial Officer | SELL | $0.71 | 125,582 | $89,753 | 768,198 | -14.1% |
| 2023-03-29 22:24 | 2023-03-28 | Barron Gerard | Director, Officer - Chief Executive Officer | BUY | $0.71 | 35,000 | $25,001 | 15,497,489 | +0.2% |
| 2023-01-03 16:23 | 2022-12-30 | Barron Gerard | Director, Officer - Chief Executive Officer | BUY | $0.71 | 42,000 | $29,820 | 15,462,489 | +0.3% |
| 2022-12-02 00:33 | 2022-11-29 | Shesky Craig | Officer - Chief Financial Officer | SELL | $0.80 | 36,735 | $29,458 | 641,581 | -5.4% |
| 2022-10-04 03:49 | 2022-09-30 | O'Sullivan Anthony | Officer - Chief Development Officer | SELL | $1.04 | 50,686 | $52,860 | 312,500 | -14.0% |
| 2022-09-22 01:50 | 2022-09-19 | O'Sullivan Anthony | Officer - Chief Development Officer | SELL | $1.20 | 50,686 | $60,889 | 363,186 | -12.2% |
| 2022-08-17 03:43 | 2022-08-12 | Karkar Andrei | Director, 10% owner | BUY | $0.80 | 6,250,000 | $5,000,000 | 51,955,976 | +13.7% |
| 2022-08-17 03:24 | 2022-08-12 | Barron Gerard | Director, Officer - Chief Executive Officer | BUY | $0.96 | 103,680 | $99,999 | 15,420,489 | +0.7% |
| 2022-06-30 04:56 | 2022-06-29 | Barron Gerard | Director, Officer - Chief Executive Officer | BUY | $1.01 | 25,000 | $25,250 | 15,316,809 | +0.2% |
| 2022-04-01 23:05 | 2022-03-30 | Karkar Andrei | Director, 10% owner | BUY | $2.40 | 2,085,000 | $5,014,008 | 45,705,976 | +4.8% |
| 2022-04-01 04:46 | 2022-03-30 | Barron Gerard | Director, Officer - Chief Executive Officer | BUY | $2.19 | 23,000 | $50,370 | 15,291,809 | +0.2% |
| 2022-04-01 04:44 | 2022-03-30 | Hall Andrew | Director | BUY | $2.13 | 28,000 | $59,713 | 36,032 | +348.6% |
| 2022-03-31 02:32 | 2022-03-30 | Shesky Craig | Officer - Chief Financial Officer | BUY | $1.80 | 15,000 | $26,979 | 678,316 | +2.3% |
| 2022-01-04 04:07 | 2021-12-31 | Karkar Andrei | Director, 10% owner | BUY | $2.09 | 1,000,000 | $2,090,000 | 43,620,976 | +2.3% |
| 2021-12-29 01:30 | 2021-12-24 | Karkar Andrei | Director, 10% owner | BUY | $2.00 | 748,957 | $1,497,914 | 42,620,976 | +1.8% |
| 2021-12-29 01:29 | 2021-12-24 | Barron Gerard | Director, Officer - Chief Executive Officer | BUY | $2.00 | 47,438 | $94,876 | 15,087,940 | +0.3% |
| 2021-11-23 16:07 | 2021-11-22 | Barron Gerard | Director, Officer - Chief Executive Officer | BUY | $3.22 | 15,500 | $49,910 | 14,259,252 | +0.1% |
| 2021-10-01 15:16 | 2021-09-30 | Karkar Andrei | Director, 10% owner | BUY | $4.44 | 2,250,110 | $9,999,939 | 41,872,019 | +5.7% |
| 2021-10-01 15:02 | 2021-09-30 | Barron Gerard | Director, Officer - Chief Executive Officer | BUY | $4.41 | 34,000 | $149,940 | 14,243,752 | +0.2% |
How to Interpret $TMC Trades
Not every insider transaction in TMC is a signal for immediate action. Professional investors look for "cluster buying"—when multiple executives simultaneously purchase $TMC shares on the open market. It is crucial to distinguish between scheduled sales (under Rule 10b5-1) and voluntary increases in ownership, which demonstrate management’s true conviction that the stock is undervalued.
Data Source & Accuracy for TMC
Insider activity data for TMC is streamed in real-time directly from the SEC EDGAR system. We analyze raw Form 4 filings, filtering out technical adjustments and complex derivative transactions. This provides a transparent view of how ownership structure is evolving in $TMC, allowing you to follow the capital of those with the most intimate knowledge of the company.
UNDERSTANDING THE DATA
FILING DATE: The date and time when the transaction was reported to the SEC. This is when the public first receives the information.
TRADE DATE: The actual day the insider executed the purchase or sale in the market.
INDUSTRY: The specific market sector the company operates in. Useful for identifying broader institutional capital flows across sectors.
OWNED AFTER: The total number of shares held by the insider following the transaction. This highlights the insider's remaining conviction in the company.
CHANGE %: The percentage increase or decrease of the insider's total position. Large percentage changes often carry more weight than the dollar amount alone.
TRADE TYPES DEFINITIONS
BUY: An open market purchase. Typically indicates an insider's belief that the stock is undervalued or poised for growth.
SELL: An open market sale. While often used for diversification or liquidity, large or unexpected sales can be a warning signal.
OPT+S (OPTION EXERCISE & SALE): This occurs when an insider exercises their stock options and sells them immediately. Often part of a structured compensation plan.