Connie K. Duckworth - 30 Sep 2025 Form 4 Insider Report for MP Materials Corp. / DE (MP)

Role: Director
Signature: /s/ Elliot D. Hoops, Attorney-In-Fact for Connie K. Duckworth
Issuer symbol: MP
Transactions as of: 30 Sep 2025
Transactions value $: $0
Form type: 4
Date filed: 01 Oct 2025, 21:27
Previous filing: 12 Sep 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
DUCKWORTH CONNIE K	Director	1700 S. PAVILION CENTER DRIVE, SUITE 800, LAS VEGAS	/s/ Elliot D. Hoops, Attorney-In-Fact for Connie K. Duckworth	2025-10-01	0001180940

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MP	Common Stock	Award	$0	+447	+1.26%	$0.00	35.8K	30 Sep 2025	Direct	F1

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

Explanation of Responses:

Id	Content
F1	Represents deferred stock units ("DSUs") awarded in connection with the election to defer cash retainers by the reporting person. Each DSU represents a right to receive a share of the registrant's common stock and are fully vested on grant. The DSUs will be settled upon the earlier to occur of the following: (i) June 15th occurring following the close of the fifth calendar year following the close of the calendar year in which the cash retainers are earned; (ii) certain changes in control of the registrant; and (iii) the date of the reporting person's separation from service.

Content

Represents deferred stock units ("DSUs") awarded in connection with the election to defer cash retainers by the reporting person. Each DSU represents a right to receive a share of the registrant's common stock and are fully vested on grant. The DSUs will be settled upon the earlier to occur of the following: (i) June 15th occurring following the close of the fifth calendar year following the close of the calendar year in which the cash retainers are earned; (ii) certain changes in control of the registrant; and (iii) the date of the reporting person's separation from service.