TOP TIERMARKET NEWSWIRE
Movers explained · 2026-09-30

Archived explainer. For the current picture see today's TMC page.

Why Is TMC THE METALS CO IN (TMC) Stock Up Today?

By the Top Tier Newswire AI Desk · September 30, 2026 at 10:05 AM ET · reviewed against 3 wire stories

TMC THE METALS CO IN (TMC) is up +7.21% in the latest session. Our newswire has captured 3 stories on TMC across 3 sources in the last 36 hours, with AI sentiment reading mixed (avg 57/100).

Public view, delayed 4h. Every headline, price and sentiment read below — and this write-up itself — reaches Pro subscribers live. Public readers see it once it clears the delay.

Why TMC stock is up today

TMC stock rose 7.21% to $4.01 in early trading on Monday, driven by the announcement that the company has appointed Liam Mallon, a former executive at ExxonMobil, to its board. The move signals progress in TMC’s deep-seabed mining initiatives and has generated investor optimism about the company’s strategic direction and regulatory outlook.

What Happened

TMC announced the appointment of Liam Mallon to its board as part of its ongoing efforts to advance seabed mining permits. Mallon’s extensive experience in the energy sector, particularly with ExxonMobil, is expected to provide valuable leadership as the company works toward commercializing its seabed mineral extraction projects. The appointment was disclosed in a Form 8-K filing with the SEC, which also noted the election of directors and related compensatory arrangements. The news followed a recent environmental update from the National Oceanic and Atmospheric Administration, which published a notice of intent to prepare an environmental impact statement for TMC’s exploration license application.

What The Data Shows

The stock opened at $3.78, reflecting a 1.0% gap up from the previous close of $3.74. It reached an intraday high of $4.03 at 10:00 AM ET before settling at $4.01. The session saw a volume of 0.8 million shares, which is 0.1 times the 3-month daily average. TMC’s market cap is $1.7 billion, and the stock remains unprofitable with a trailing 12-month EPS of -0.73. The stock has traded between $3.40 and $11.35 over the past 52 weeks. On September 30, the stock printed 10 fresh 52-week highs, indicating a recent surge in momentum.

What To Watch

TMC has no upcoming earnings date scheduled in the near term. Investors should monitor the breadth of coverage and any further developments in the company’s regulatory and permitting process, as well as broader market sentiment toward the materials and mining sector.

AI-assisted analysis composed exclusively from headlines and data on the Top Tier newswire. Public view is delayed 4 hours from real time. Not financial advice.

TMC by the numbers

Last: $4.01Session: +7.21%Coverage: 3 stories / 3 sourcesAI sentiment: 57/100 (mixed)Mkt cap: $1.7B52w: $3.40 to $11.35
TMC · today's session (5-min) · +3.05% vs prior close · updated 3:57 PM ET
$3.72$3.92$4.12prev close $3.74$3.857:25 AM9:32 AM11:40 AM1:47 PM3:55 PM7:25 AM · $3.787:30 AM · $3.757:50 AM · $3.787:55 AM · $3.778:00 AM · $3.778:20 AM · $3.768:30 AM · $3.838:35 AM · $3.818:40 AM · $3.818:45 AM · $3.838:50 AM · $3.839:00 AM · $3.839:05 AM · $3.839:10 AM · $3.839:15 AM · $3.839:20 AM · $3.839:25 AM · $3.819:30 AM · $3.909:35 AM · $3.909:40 AM · $3.909:45 AM · $3.879:50 AM · $3.909:55 AM · $3.9810:00 AM · $4.0110:05 AM · $4.0410:10 AM · $4.0510:15 AM · $4.0510:20 AM · $4.0410:25 AM · $4.0510:30 AM · $4.0910:35 AM · $4.0910:40 AM · $4.0910:45 AM · $4.0810:50 AM · $4.0510:55 AM · $4.0411:00 AM · $4.0411:05 AM · $4.0411:10 AM · $4.0311:15 AM · $4.0411:20 AM · $4.0111:25 AM · $4.0111:30 AM · $4.0011:35 AM · $4.0011:40 AM · $3.9911:45 AM · $3.9611:50 AM · $3.9511:55 AM · $3.9412:00 PM · $3.9212:05 PM · $3.9112:10 PM · $3.9212:15 PM · $3.9212:20 PM · $3.9212:25 PM · $3.9212:30 PM · $3.9212:35 PM · $3.9412:40 PM · $3.9612:45 PM · $3.9612:50 PM · $3.9512:55 PM · $3.961:00 PM · $3.941:05 PM · $3.941:10 PM · $3.921:15 PM · $3.921:20 PM · $3.901:25 PM · $3.921:30 PM · $3.921:35 PM · $3.921:40 PM · $3.921:45 PM · $3.921:50 PM · $3.921:55 PM · $3.922:00 PM · $3.942:05 PM · $3.922:10 PM · $3.952:15 PM · $3.942:20 PM · $3.942:25 PM · $3.942:30 PM · $3.912:35 PM · $3.942:40 PM · $3.942:45 PM · $3.922:50 PM · $3.932:55 PM · $3.933:00 PM · $3.923:05 PM · $3.923:10 PM · $3.943:15 PM · $3.943:20 PM · $3.923:25 PM · $3.923:30 PM · $3.903:35 PM · $3.883:40 PM · $3.883:45 PM · $3.883:50 PM · $3.853:55 PM · $3.85
AI sentiment, last 36h · averaged over 3 stories · 57/100 bullish
AI sentiment 57/100 (bullish)0 · bearish50bullish · 100

The headlines behind the move

Story flow · 3 stories on the wire, last 36h · hover or tap a dot for the headline
36h ago24h ago12h agopublishSEC 8-K · sentiment 50 · TMC the metals Co Inc. (TMC) files 8-KSEC 8-K · 50TMC the metals Co Inc. (TMC) files 8-KInvesting.com Markets · sentiment 58 · Exxon veteran Liam Mallon joins TMC board ahead of seabed mining pushInvesting.com Markets · 58Exxon veteran Liam Mallon joins TMC board ahead of seabed mining pushSeeking Alpha · sentiment 63 · Metals Company adds Exxon veteran to board as seabed mining plans advanceSeeking Alpha · 63Metals Company adds Exxon veteran to board as seabed mining plans advance
1d agoSeeking AlphaBULLISH 63General

Metals Company adds Exxon veteran to board as seabed mining plans advance

TMC names ex-Exxon exec Liam Mallon to board as deep-sea mining permits near.

1d agoInvesting.com MarketsBULLISH 58General

Exxon veteran Liam Mallon joins TMC board ahead of seabed mining push

Get the stock market news that is impacting trading in the US and around the world. Investing.com's stock market news team reports on before and after hours trading, earnings reports, company news and any news impacting today's major stock markets.

1d agoSEC 8-KNEUTRAL 50General

TMC the metals Co Inc. (TMC) files 8-K

Filed: 2026-09-29 AccNo: 0001104659-26-111638 Size: 221 KB Item 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers Item 7.01: Regulation FD Disclosure Item 9.01: Financial Statements and Exhibits

Want the next move before the crowd? The live terminal streams every headline in real time with watchlist alerts, AI sentiment, and the full data stack behind this page.Get Pro Access →

More on TMC: full news and sentiment history. Sentiment scores are AI-derived research signals, not financial advice.

Earlier TMC move explainers: 2026-09-30