SEC Form 4 reporting owner

Corbett Ryan

Corbett Ryan has filed 9 Form 4 transactions reported between December 9, 2025 and May 8, 2026, as Chief Financial Officer of MP Materials Corp. / DE.

Name as filed: Corbett Ryan

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$6.5M

3 lines

Companies

with Form 4 filings

Latest transaction

May 8, 2026

transaction date

Roles and reported holdings

MPMP Materials Corp. / DE
Dec 9, 2025 – May 8, 2026
Chief Financial Officer
Held directly109,017 sh as of May 8, 2026 · Form 4
24 months: $6.5M sold

Transaction history

All 9 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
May 8, 2026	MPChief Financial Officer	Open-market saleCode S · direct	20,000	$75.00	$1.5M@ $75.00	109,017	Form 4
Mar 17, 2026	MPChief Financial Officer	Open-market saleCode S · direct	46,000	$60.00	$2.8M@ $60.00	129,017	Form 4
Jan 14, 2026	MPChief Financial Officer	Shares withheld for tax or exercise priceCode F · direct	3,511	$69.30	$243K@ $69.30	175,017	Form 4
Jan 13, 2026	MPChief Financial Officer	Shares withheld for tax or exercise priceCode F · direct	5,948	$63.82	$380K@ $63.82	178,528	Form 4
Jan 12, 2026	MPChief Financial Officer	Shares withheld for tax or exercise priceCode F · direct	7,315	$65.34	$478K@ $65.34	184,476	Form 4
Jan 12, 2026	MPChief Financial Officer	Shares withheld for tax or exercise priceCode F · direct	12,038	$65.34	$787K@ $65.34	191,791	Form 4
Jan 12, 2026	MPChief Financial Officer	Grant or awardCode A · direct	30,590	—	—	203,829	Form 4
Jan 12, 2026	MPChief Financial Officer	Grant or awardCode A · direct	16,573	—	—	173,239	Form 4
Dec 9, 2025	MPChief Financial Officer	Open-market saleCode S · direct	38,146	$60.00	$2.3M@ $60.00	156,666	Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.