Mp Materials Corp (MP): Congress and insider trades
Who in Congress and inside the company traded MP, when each filing appeared, and what buying after each one would have earned against the S&P 500.
Key Facts
- Mp Materials Corp (MP) is a listed stock on NYSE.
- 1 member of Congress filed 1 buy and 0 sells of MP, the latest published 2022-05-23 (23 May 2022).
- Insiders filed 2 open market buys worth $1.5M and 7 sells worth $49M, the latest filed 2026-06-10 (10 June 2026).
- Across 1 scored buy, Congress averaged -11.7% against the S&P 500 (SPY) over the 90 days after disclosure, with 0% of them ahead of the index. That result is too few trades to tell.
- Across 2 scored buys, Insiders averaged -10.3% against the S&P 500 (SPY) over the 90 days after disclosure, with 0% of them ahead of the index. That result is too few trades to draw a conclusion.
- Data as of 2026-09-29 (29 September 2026).
Congress trades in MP
as of 2022-05-23| Filed | Member | Type | Size | Days to file | 90 day vs S&P |
|---|---|---|---|---|---|
| 23 May 2022 | Tom Suozzi (D-NY) | buy | 15Kâ50K | 15 | -11.7% |
Nothing matches that search.
Insider trades in MP
as of 2026-06-10| Filed | Insider | Type | Shares | Price | Value | 90 day vs S&P |
|---|---|---|---|---|---|---|
| 10 Jun 2026 | Rosenthal Michael Stuart | buy | 10,000 | $54.30 | $543K | -8.6% |
| 29 May 2026 | Litinsky James H. | sell | 115,349 | $65.37 | $7.5M | n/a |
| 29 May 2026 | Litinsky James H. | sell | 234,651 | $65.87 | $15M | n/a |
| 29 May 2026 | Litinsky James H. | sell | 50,000 | $64.58 | $3.2M | n/a |
| 20 May 2026 | Rosenthal Michael Stuart | buy | 17,000 | $56.62 | $963K | -12.0% |
| 20 Apr 2026 | Litinsky James H. | sell | 259,179 | $64.03 | $17M | n/a |
| 20 Apr 2026 | Litinsky James H. | sell | 40,821 | $64.05 | $2.6M | n/a |
| 17 Mar 2026 | Hoops Elliot Dean | sell | 13,914 | $60.01 | $835K | n/a |
| 17 Mar 2026 | Corbett Ryan | sell | 46,000 | $60.00 | $2.8M | n/a |
Nothing matches that search.
Related pages
Frequently asked questions
Who has bought MP?
1 Congress buy by 1 member and 2 insider buys are on file. The tables on this page list every one.
Did buying MP after a disclosure beat the market?
Across 1 scored buy, Congress averaged -11.7% against the S&P 500 (SPY) over the 90 days after disclosure, with 0% of them ahead of the index. That result is too few trades to tell. Across 2 scored buys, Insiders averaged -10.3% against the S&P 500 (SPY) over the 90 days after disclosure, with 0% of them ahead of the index. That result is too few trades to draw a conclusion. A single stock is a small sample.
Sources: Congressional trades: STOCK Act disclosures, collected from CapitolTrades. Insider trades: SEC Form 4 filings, collected from Finviz. Prices: Yahoo Finance daily adjusted closes. Data as of 2026-09-29 (29 September 2026). About these sources.
Not investment advice. Past disclosed trades do not predict future returns. Disclosures are published late, so the trades shown are ones you could only have copied after the fact. Talk to a licensed adviser before you invest.