Michael Stuart Rosenthal bought $963k of MP
Chief Operating Officer at MP Materials Corp. / DE. 17,000 shares at an average of $56.62, traded May 20, 2026, filed May 20, 2026.
Score components
- +20RoleCOO
- +24Trade size$963k at market
- 0Relative to holdingsHoldings up 1.3%
- +8Price context43% below the 52-week high
- 0ClusterNo other insider buying within 14 days
- 0Repeat buyingFirst buy in 90 days
- 0Track recordToo few past buys to judge (0 with prices)
What happened after comparable buys
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.
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.
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 0001832050-26-000005, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| May 20, 2026 | POpen-market purchase Common Stock | +17,000 | $56.62 | $963k | 1,333,673 | May 20, 2026 |
Related signals
Other insiders at MP Materials Corp. / DE and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 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% | |
| 65Notable | MP Materials Corp. / DE | James H. Litinsky Chairman and CEO | $20M 300,000 shares | -2% | |
| 47Moderate | MP Materials Corp. / DE | Ryan Corbett Chief Financial Officer | $1.5M 20,000 shares | -16% | |
| 33Weak | MP Materials Corp. / DE | Elliot Dean Hoops General Counsel and Secretary | $522k 6,958 shares | -11% | |
| 30Weak | MP Materials Corp. / DE | James H. Litinsky Chairman and CEO | $19M 300,000 shares | -2% | |
| 45Moderate | MP Materials Corp. / DE | Ryan Corbett Chief Financial Officer | $2.8M 46,000 shares | -26% | |
| 31Weak | MP Materials Corp. / DE | Elliot Dean Hoops General Counsel and Secretary | $835k 13,914 shares | -19% | |
| 21Weak | MP Materials Corp. / DE | Elliot Dean Hoops General Counsel and Secretary | $534k 7,823 shares | -9% |
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.