MP Materials Corp. / DE

Metal Mining

MP Mining & Metals People in Mining & Metals SEC CIK 0001801368 ↗

Computed from SEC EDGAR filings and closing prices — not copied from any wealth ranking. Dataset . How we calculate this.

Market capitalisation
$9.00B
178,101,588 shares Covers every share class this company has on file.
Insiders on file
7
people who have filed Form 3, 4 or 5 naming this issuer
Value of insider-held stock
$804.98M
from the holdings reported on Forms 3/4/5; this figure has no separate as-of date on file
Insider-held share of market cap
8.95%
insider-held value divided by market capitalisation

What MP Materials Corp. / DE reports

Revenue and net income below are for fiscal period FY2025, the period label carried by this company’s own annual XBRL filings to the SEC. Fiscal years do not line up between companies — one company’s FY2026 can cover much the same months as another’s FY2025 — so compare the periods, not just the numbers.

Revenue
$224.44M
FY2025 annual revenue, from this company’s own annual XBRL filings to the SEC
Net income
-$85.87M
FY2025 a loss for the period, from this company’s own annual XBRL filings to the SEC
Employees
998
Yahoo Finance
Where the employee count comes from

Headcount comes from Yahoo Finance, not from a filing. The date beside it is the day we retrieved the figure — it is not the date the company counted its staff, and Yahoo does not publish that date. Unlike the SEC filings behind the other figures on this page, this one carries no open licence, so we publish the number and nothing else from that source.

Insiders at MP Materials Corp. / DE

Shares is what each person last reported holding here.

Everyone below has filed at least one insider report against this company.

Value is that share count priced at the same closing price used everywhere else on this site. A row priced from only some of a person’s securities says so — we do not quietly present a partial sum as a complete one.

Rows are grouped by the role each person reports.

The role comes from the relationship boxes a person ticks on their own insider filings — officer, director, ten per cent owner — not from anything we infer. Somebody who is both an officer and a director appears once, in the combined group, so the row count still matches the figure at the top of this page. Where no filing states a role we say so instead of guessing one.

People who file insider reports against MP Materials Corp. / DE.
Insider Reported role Shares Value Last action
Officers 4
Michael Stuart Rosenthal COO 1,443,295 $78.70M P Open-market purchase Jun 9, 2026 position reported
Ryan Corbett CFO 129,017 $7.04M S Open-market sale May 8, 2026 position reported
Elliot Dean Hoops General Counsel 62,053 $3.38M S Open-market sale May 8, 2026 position reported
David Gregory Infuso Chief Accounting Officer 49,246 $2.69M F Shares withheld for taxes Apr 1, 2026 position reported
Officers who also sit on the board 2
James H Litinsky CEO 13,022,362 $710.11M S Open-market sale Jun 3, 2026 position reported
Maryanne Lavan General Counsel 19,755 $1.08M M Option exercise or conversion Jun 15, 2026 position reported
Directors 1
Connie K. Duckworth Board Member 36,427 $1.99M A Grant or award Jun 30, 2026 position reported

Events from filings

Detected automatically in the filings linked below. Each headline is built from the numbers in those filings, not written by a model. Newest first; events older than 45 days stay listed and are marked as older.

Ryan Corbett sold 46,000 MP Materials Corp. / DE (MP) shares for $2,760,000 on Mar 17, 2026

Unusual change in a direct holding

Flagged because the change that day in the shares this person holds directly was unusually large compared with their own earlier changes. The rows below are the open-market trades reported that day; under each share count is the balance the filing reports after that line.

Ryan Corbett sold 46,000 MP Materials Corp. / DE (MP) shares for $2,760,000 on Mar 17, 2026
Date Insider Transaction Shares Price Value Filing
Mar 17, 2026 Ryan Corbett S Open-market sale 46,000 held after: 129,017 $60.00 $2,760,000 SEC filing ↗

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

Ryan Corbett sold 60,000 MP Materials Corp. / DE (MP) shares for $1,530,391 on Mar 14, 2025

Unusual change in a direct holding

Flagged because the change that day in the shares this person holds directly was unusually large compared with their own earlier changes. The rows below are the open-market trades reported that day; under each share count is the balance the filing reports after that line.

Ryan Corbett sold 60,000 MP Materials Corp. / DE (MP) shares for $1,530,391 on Mar 14, 2025
Date Insider Transaction Shares Price Value Filing
Mar 14, 2025 Ryan Corbett S Open-market sale 20,805 held after: 230,100 $26.17 $544,467 SEC filing ↗
Mar 14, 2025 Ryan Corbett S Open-market sale 15,000 held after: 275,100 $25.00 $375,000 SEC filing ↗
Mar 14, 2025 Ryan Corbett S Open-market sale 24,195 held after: 250,905 $25.25 $610,924 SEC filing ↗

Total of the rows above: $1,530,391, in the currency the filings report.

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

Recent insider transactions

Of the 146 rows we hold, 3 are open-market purchases (P) and 65 open-market sales (S) — the only codes we count as buying or selling.

The rest — awards, shares withheld to pay tax, option exercises, gifts and so on — follow from an employment contract or a transfer arranged off-market, not from a decision to buy or sell, so counting them would turn this into a pay table.

A price of 0.00 is a real reported figure on gifts (G) and share awards (A) — not a gap in our data.

Insider transactions disclosed to the SEC for MP Materials Corp. / DE, newest first, each with the filing behind it.
Date Insider Transaction Shares Price Value Filing
Jun 30, 2026 Connie K. Duckworth A Grant or award 624 $0.00 $0 SEC filing ↗
Jun 15, 2026 Connie K. Duckworth M Option exercise or conversion 3,998 $0.00 $0 SEC filing ↗
Jun 15, 2026 Maryanne Lavan M Option exercise or conversion 3,998 $0.00 $0 SEC filing ↗
Jun 15, 2026 Randall J. Weisenburger M Option exercise or conversion 3,998 $0.00 $0 SEC filing ↗
Jun 9, 2026 Michael Stuart Rosenthal P Open-market purchase 10,000 $54.30 $543.0K SEC filing ↗
Jun 3, 2026 James H Litinsky S Open-market sale 136,141 $68.65 $9.35M SEC filing ↗
Jun 3, 2026 James H Litinsky S Open-market sale 37,286 $70.23 $2.62M SEC filing ↗
Jun 3, 2026 James H Litinsky S Open-market sale 11,740 $71.31 $837.2K SEC filing ↗
May 29, 2026 James H Litinsky S Open-market sale 48,050 $64.56 $3.10M SEC filing ↗
May 29, 2026 James H Litinsky S Open-market sale 1,950 $65.13 $127.0K SEC filing ↗
May 28, 2026 James H Litinsky S Open-market sale 95,114 $64.67 $6.15M SEC filing ↗
May 28, 2026 James H Litinsky S Open-market sale 44,117 $65.65 $2.90M SEC filing ↗
May 28, 2026 James H Litinsky S Open-market sale 49,265 $66.52 $3.28M SEC filing ↗
May 28, 2026 James H Litinsky S Open-market sale 39,445 $67.78 $2.67M SEC filing ↗
May 28, 2026 James H Litinsky S Open-market sale 6,710 $68.18 $457.5K SEC filing ↗
May 27, 2026 James H Litinsky S Open-market sale 92,236 $65.20 $6.01M SEC filing ↗
May 27, 2026 James H Litinsky S Open-market sale 23,113 $66.06 $1.53M SEC filing ↗
May 20, 2026 Michael Stuart Rosenthal P Open-market purchase 17,000 $56.62 $962.5K SEC filing ↗
May 13, 2026 James H Litinsky S Open-market sale 83,229 $64.93 $5.40M SEC filing ↗
May 13, 2026 James H Litinsky S Open-market sale 93,959 $65.31 $6.14M SEC filing ↗
May 12, 2026 James H Litinsky S Open-market sale 102,968 $65.67 $6.76M SEC filing ↗
May 12, 2026 James H Litinsky S Open-market sale 19,844 $67.12 $1.33M SEC filing ↗
May 8, 2026 Elliot Dean Hoops S Open-market sale 6,958 $75.00 $521.9K SEC filing ↗
May 8, 2026 Ryan Corbett S Open-market sale 20,000 $75.00 $1.50M SEC filing ↗
Apr 20, 2026 James H Litinsky S Open-market sale 259,179 $64.03 $16.60M SEC filing ↗

From SEC Form 4 filings. Every row links to the filing it came from. How we calculate this.

What a Form 4 is

The report an officer, director or large shareholder must file after trading their own company’s stock.

Subsidiaries — 5 legal entities

Subsidiaries of MP Materials Corp. / DE

5 legal entities named in the subsidiary exhibit filed with this company’s most recent 10-K. . Filing on SEC.gov.

This is not the full list. SEC rules only require a company to name its significant subsidiaries.

What that leaves out

Smaller entities are left out of the exhibit entirely. A short list here means a short exhibit — it does not mean the company owns nothing else. Nothing on this page is inferred: every name below is copied from the filing.

Subsidiaries MP Materials Corp. / DE names in its most recent annual report, with the place each one is organised.
Subsidiary Organised in
MP 10X Development LLC Delaware
MP Magnetics LLC Delaware
MP Mine Operations LLC Delaware
MP Separations Company LLC Delaware
Secure Natural Resources LLC Delaware
What counts as a subsidiary

A subsidiary is a separate legal entity this company controls; it is not the same thing as a brand, a division or an office. These entities do not file with the SEC in their own right, so there is no separate page to open for them.

Think a number here is wrong? Open the linked filing and compare — how to report it.

Sources and technical notes

Every figure on this page comes from filings to the U.S. SEC via EDGAR. Nothing here is estimated, and nothing is taken from press coverage or company websites.

Share count: cover page of the latest filing (dei:EntityCommonStockSharesOutstanding), taken from MP Materials Corp. / DE’s own filings and multiplied by our closing price. Full method.

What that share count means

the share count the company itself prints on the cover of its most recent filing, as of the date it signed that filing.

We do not take a market cap from a data vendor, and we do not estimate one: the figure is a share count from MP Materials Corp. / DE’s own SEC filings multiplied by the closing price we hold for the same stock.