Updated Jul 16, 2026 · Last SEC filing 2026-07-01
MP Materials Corp. / DE (MP) has filed 19 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-01. 2 Form 8-K material event filings were reported by MP in the last 90 days. 9 Form 144 notices of proposed sale were filed for MP stock. InsiderAlpha tracks every MP SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SIC classification | Metal Mining (SIC 1000) |
|---|---|
| SEC CIK | 0001801368 |
| Form 4 filings (90d) | 19 |
|---|---|
| Form 8-K filings (90d) | 2 |
| Form 144 notices (90d) | 9 |
| Latest Form 4 filing | 2026-07-01 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| DUCKWORTH CONNIE K | Director | A — Grant or award | 624 | $0.00 | — | SEC | |
| MYERS RICHARD B | Director | M — Option exercise | 4.0K | — | — | SEC | |
| WEISENBURGER RANDALL J | Director | M — Option exercise | 4.0K | — | — | SEC | |
| Lavan Maryanne | Director | M — Option exercise | 4.0K | — | — | SEC | |
| DUCKWORTH CONNIE K | Director | M — Option exercise | 4.0K | — | — | SEC | |
| Rosenthal Michael Stuart | Chief Operating Officer | P — Open-market purchase | 10.0K | $54.30 | $543K | SEC | |
| Litinsky James H. | Chairman and CEO | S — Open-market sale | 11.7K | $71.31 | $837K | SEC | |
| Litinsky James H. | Chairman and CEO | S — Open-market sale | 136.1K | $68.65 | $9.35M | SEC | |
| Litinsky James H. | Chairman and CEO | S — Open-market sale | 37.3K | $70.23 | $2.62M | SEC | |
| Litinsky James H. | Chairman and CEO | S — Open-market sale | 1.9K | $65.13 | $127K | SEC | |
| Litinsky James H. | Chairman and CEO | S — Open-market sale | 48.0K | $64.56 | $3.10M | SEC | |
| Litinsky James H. | Chairman and CEO | S — Open-market sale | 6.7K | $68.18 | $457K | SEC | |
| Litinsky James H. | Chairman and CEO | S — Open-market sale | 49.3K | $66.52 | $3.28M | SEC | |
| Litinsky James H. | Chairman and CEO | S — Open-market sale | 39.4K | $67.78 | $2.67M | SEC | |
| Litinsky James H. | Chairman and CEO | S — Open-market sale | 44.1K | $65.65 | $2.90M | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for MP Materials Corp. / DE (MP). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Litinsky James H. | 18 | $77.87M |
| DUCKWORTH CONNIE K | 4 | — |
| MYERS RICHARD B | 3 | — |
| Lavan Maryanne | 3 | — |
| WEISENBURGER RANDALL J | 3 | — |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in MP insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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