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sellModerate

Michael Stuart Rosenthal sold $11M of MP

Chief Operating Officer at MP Materials Corp. / DE. 150,000 shares at an average of $72.02, traded Aug 29, 2025, filed Aug 29, 2025.

Warning score
50
Value
$11M
150,000 shares
Holdings after
1,284,409
-10% from before
From 52-week low
+416%
low $13.79, close $71.14
From 52-week high
-7%
high $76.58, as of Aug 29, 2025

Score components

  • Role
    COO
    +20
  • Trade size
    $10.8M at market
    +25
  • Share of holdings sold
    Sold 10% of holdings
    +5
  • 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 -3.5%, 3m -12.9%, 6m -17.2%.

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.

MPOct 12, 2026 · close 43.36
Since filing Aug 29, 2025: -39.0%SPY +22.3% · excess -61.3%

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 0001628280-25-041426, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Aug 29, 2025SOpen-market sale
Common Stock
-83,874$71.48$6.0M1,350,535Aug 29, 2025
Aug 29, 2025SOpen-market sale
Common Stock
-52,063$72.56$3.8M1,298,472Aug 29, 2025
Aug 29, 2025SOpen-market sale
Common Stock
-14,063$73.23$1.0M1,284,409Aug 29, 2025

Related signals

Other insiders at MP Materials Corp. / DE and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
55Moderate
MPbuy
MP Materials Corp. / DE
Michael Stuart Rosenthal
Chief Operating Officer
$543k
10,000 shares
+8%
50Moderate
MPsell
MP Materials Corp. / DE
James H. Litinsky
Chairman and CEO
$13M
185,167 shares
-2%
50Moderate
MPsell
MP Materials Corp. / DE
James H. Litinsky
Chairman and CEO
$26M
400,000 shares
-3%
52Moderate
MPbuy
MP Materials Corp. / DE
Michael Stuart Rosenthal
Chief Operating Officer
$963k
17,000 shares
+1%
65Notable
MPsell 3
MP Materials Corp. / DE
James H. Litinsky
Chairman and CEO
$20M
300,000 shares
-2%
47Moderate
MPsell 310b5-1
MP Materials Corp. / DE
Ryan Corbett
Chief Financial Officer
$1.5M
20,000 shares
-16%
33Weak
MPsell 310b5-1
MP Materials Corp. / DE
Elliot Dean Hoops
General Counsel and Secretary
$522k
6,958 shares
-11%
30Weak
MPsell10b5-1
MP Materials Corp. / DE
James H. Litinsky
Chairman and CEO
$19M
300,000 shares
-2%
45Moderate
MPsell 210b5-1
MP Materials Corp. / DE
Ryan Corbett
Chief Financial Officer
$2.8M
46,000 shares
-26%
31Weak
MPsell 210b5-1
MP Materials Corp. / DE
Elliot Dean Hoops
General Counsel and Secretary
$835k
13,914 shares
-19%

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.

Michael Stuart Rosenthal sold $11M of MP | InsiderTell