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sellWeak

Anthony O'Sullivan sold $664k of TMC

Chief Development Officer at TMC the metals Co Inc.. 100,000 shares at an average of $6.64, traded Nov 28, 2025, filed Dec 2, 2025.

Warning score
35
Value
$664k
100,000 shares
Holdings after
2,025,667
-5% from before
From 52-week low
+860%
low $0.73, close $6.96
From 52-week high
-35%
high $10.69, as of Nov 28, 2025

Score components

  • Role
    Officer
    +15
  • Trade size
    $664k at market
    +20
  • Share of holdings sold
    Sold 4.7% of holdings
    0
  • Cluster
    No other insider selling within 14 days
    0

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m -16.6%, 3m -17.3%, 6m -12.3%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

TMCOct 12, 2026 · close 2.88
Since filing Dec 2, 2025: -61.1%SPY +15.4% · excess -76.5%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001104659-25-117834, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Nov 28, 2025SOpen-market sale
Common Shares
-50,000$6.51$326k2,075,667Dec 2, 2025
Dec 2, 2025SOpen-market sale
Common Shares
-50,000$6.77$339k2,025,667Dec 2, 2025

Related signals

Other insiders at TMC the metals Co Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
26Weak
TMCsell
TMC the metals Co Inc.
Brendan May
director
$133k
20,768 shares
-10%
52Moderate
TMCsell
TMC the metals Co Inc.
Craig Shesky
Chief Financial Officer
$1.6M
345,619 shares
-20%
45Moderate
TMCsell
TMC the metals Co Inc.
Erika ILVES
Chief Strategy Officer
$9.2M
1,591,485 shares
-58%
45Moderate
TMCsell
TMC the metals Co Inc.
Anthony O'Sullivan
Chief Development Officer
$3.3M
585,110 shares
-175%
43Moderate
TMCsell
TMC the metals Co Inc.
Brendan May
director
$521k
69,204 shares
-26%
41Moderate
TMCsell
TMC the metals Co Inc.
Anthony O'Sullivan
Chief Development Officer
$738k
164,317 shares
-13%
46Moderate
TMCsell
TMC the metals Co Inc.
Craig Shesky
Chief Financial Officer
$586k
353,702 shares
-24%
33Weak
TMCsell
TMC the metals Co Inc.
Erika ILVES
Chief Strategy Officer
$241k
217,099 shares
-18%
21Weak
TMCbuy
TMC the metals Co Inc.
Brendan May
director
$22k
25,000 shares
+33%
36Weak
TMCsell 2
TMC the metals Co Inc.
Craig Shesky
Chief Financial Officer
$40k
47,523 shares
-5%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Anthony O'Sullivan sold $664k of TMC | InsiderTell