Michael Stuart Rosenthal - 29 Aug 2025 Form 4 Insider Report for MP Materials Corp. / DE (MP)

Role: Chief Operating Officer
Signature: /s/ Elliot D. Hoops, Attorney-In-Fact for Michael Rosenthal
Issuer symbol: MP
Transactions as of: 29 Aug 2025
Net transactions value: -$10,802,838
Form type: 4
Filing time: 29 Aug 2025, 21:23:21 UTC
Previous filing: 18 Mar 2025
Next filing: 14 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Rosenthal Michael Stuart	Chief Operating Officer	1700 S. PAVILION CENTER DRIVE, SUITE 800, LAS VEGAS	/s/ Elliot D. Hoops, Attorney-In-Fact for Michael Rosenthal	29 Aug 2025	0001832050

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MP	Common Stock	Sale	$5,995,314	-83,874	-5.8%	$71.48	1,350,535	29 Aug 2025	Direct	F1
transaction	MP	Common Stock	Sale	$3,777,691	-52,063	-3.9%	$72.56	1,298,472	29 Aug 2025	Direct	F2
transaction	MP	Common Stock	Sale	$1,029,833	-14,063	-1.1%	$73.23	1,284,409	29 Aug 2025	Direct	F3
holding	MP	Common Stock						126,622	29 Aug 2025	By Rosenthal Family Trust

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $71.07 to $72.06. The reporting person undertakes to provide to MP Materials Corp., any security holder of MP Materials Corp., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (1) to this Form 4.
F2	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $72.07 to $73.06. The reporting person undertakes to provide to MP Materials Corp., any security holder of MP Materials Corp., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (2) to this Form 4.
F3	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $73.07 to $73.46. The reporting person undertakes to provide to MP Materials Corp., any security holder of MP Materials Corp., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (3) to this Form 4.