MP · Insider Trading
MP Materials Corp.
Every open-market purchase and sale reported by MP officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-13 | David Gregory Infuso | Chief Accounting Officer | F | −338 | −$14.34K |
| 2026-09-30 | Connie K Duckworth | Director | A | +740 | — |
| 2026-06-15 | Randall J Weisenburger | Director | M | +3,998 | — |
| 2026-06-15 | Connie K Duckworth | Director | M | +3,998 | — |
| 2026-06-15 | Maryanne Lavan | Director | M | +3,998 | — |
| 2026-06-15 | Richard B Myers | Director | M | +3,998 | — |
| 2026-06-10 | Arnold W Donald | Director | A | +3,038 deriv. | — |
| 2026-06-10 | Connie K Duckworth | Director | A | +3,038 deriv. | — |
| 2026-06-10 | Andrew A. McKnight | Director | A | +3,038 deriv. | — |
| 2026-06-10 | Richard B Myers | Director | A | +3,038 deriv. | — |
| 2026-06-10 | Maryanne Lavan | Director | A | +3,038 deriv. | — |
| 2026-06-10 | Michael Stuart Rosenthal | Chief Operating Officer | Buy | +10,000 | +$543.00K |
| 2026-06-10 | Randall J Weisenburger | Director | A | +3,038 deriv. | — |
| 2026-06-05 | James H. Litinsky | Chairman and CEO | Sell | −185,167 | −$12.80M |
| 2026-05-29 | James H. Litinsky | Chairman and CEO | Sell | −400,000 | −$26.23M |
| 2026-05-20 | Michael Stuart Rosenthal | Chief Operating Officer | Buy | +17,000 | +$962.54K |
| 2026-05-14 | James H. Litinsky | Chairman and CEO | Sell | −300,000 | −$19.63M |
| 2026-05-08 | Ryan Corbett | Chief Financial Officer | Sell | −20,000 | −$1.50M |
| 2026-05-08 | Elliot Dean Hoops | General Counsel and Secretary | Sell | −6,958 | −$521.85K |
| 2026-04-20 | James H. Litinsky | Chairman and CEO | Sell | −300,000 | −$19.21M |
| 2026-04-01 | Connie K Duckworth | Director | A | +725 | — |
| 2026-04-01 | David Gregory Infuso | Chief Accounting Officer | F | −804 | −$38.92K |
| 2026-03-17 | Ryan Corbett | Chief Financial Officer | Sell | −46,000 | −$2.76M |
| 2026-03-17 | Elliot Dean Hoops | General Counsel and Secretary | Sell | −13,914 | −$834.98K |
| 2026-01-22 | David Gregory Infuso | Chief Accounting Officer | F | −1,198 | −$81.91K |
| 2026-01-22 | Elliot Dean Hoops | General Counsel and Secretary | Sell | −7,823 | −$533.61K |
| 2026-01-14 | Michael Stuart Rosenthal | Chief Operating Officer | MIXED | +32,264 | −$1.27M |
| 2026-01-14 | Ryan Corbett | Chief Financial Officer | MIXED | +18,351 | −$1.89M |
| 2026-01-14 | David Gregory Infuso | Chief Accounting Officer | MIXED | +2,350 | −$184.88K |
| 2026-01-14 | Elliot Dean Hoops | General Counsel and Secretary | MIXED | +13,041 | −$1.22M |
| 2026-01-13 | James H. Litinsky | Chairman and CEO | MIXED | +4,053 | −$6.46M |
| 2026-01-09 | James H. Litinsky | Chairman and CEO | Sell | −300,000 | −$19.25M |
| 2026-01-02 | Maryanne Lavan | Director | A | +556 | — |
| 2026-01-02 | Connie K Duckworth | Director | A | +593 | — |
| 2025-12-10 | Ryan Corbett | Chief Financial Officer | Sell | −38,146 | −$2.29M |
| 2025-12-05 | James H. Litinsky | Chairman and CEO | Sell | −385,000 | −$24.23M |
| 2025-11-20 | James H. Litinsky | Chairman and CEO | MIXED | −327,111 | −$20.47M |
| 2025-11-19 | Ryan Corbett | Chief Financial Officer | Sell | −20,000 | −$1.15M |
| 2025-10-14 | David Gregory Infuso | Chief Accounting Officer | A | +3,427 | — |
| 2025-10-01 | Maryanne Lavan | Director | A | +419 | — |
| 2025-10-01 | Connie K Duckworth | Director | A | +447 | — |
| 2025-09-12 | James H. Litinsky | Chairman and CEO | G | −25,000 | — |
| 2025-08-29 | Michael Stuart Rosenthal | Chief Operating Officer | Sell | −150,000 | −$10.80M |
| 2025-08-01 | Elliot Dean Hoops | General Counsel and Secretary | Sell | −6,337 | −$382.30K |
| 2025-07-03 | Elliot Dean Hoops | General Counsel and Secretary | Sell | −6,338 | −$202.46K |
| 2025-06-30 | Connie K Duckworth | Director | A | +901 | — |
| 2025-06-30 | Maryanne Lavan | Director | A | +845 | — |
| 2025-06-27 | Elliot Dean Hoops | General Counsel and Secretary | Sell | −5,523 | −$200.87K |
| 2025-06-13 | Elliot Dean Hoops | General Counsel and Secretary | Sell | −6,338 | −$189.88K |
| 2025-06-11 | Randall J Weisenburger | Director | A | +4,957 deriv. | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| James H. Litinsky | Chairman and CEO | 11,973,336 | $466.36M |
| Michael Stuart Rosenthal | Chief Operating Officer | 1,470,295 | $57.27M |
| Randall J Weisenburger | Director | 150,899 | $5.88M |
| Ryan Corbett | Chief Financial Officer | 109,017 | $4.25M |
| Elliot Dean Hoops | General Counsel and Secretary | 55,095 | $2.15M |
| David Gregory Infuso | Chief Accounting Officer | 48,104 | $1.87M |
| Connie K Duckworth | Director | 42,514 | $1.66M |
| Maryanne Lavan | Director | 23,753 | $925.18K |
| Richard B Myers | Director | 7,792 | $303.50K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the MP quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.