MP Materials director receives 3,998 deferred shares

MP Materials Corp. director Richard B. Myers exercised previously granted restricted stock units and received common shares.

Rhea-AI Filing Summary

MP Materials Corp. director Richard B. Myers exercised previously granted restricted stock units and received common shares. On June 15, 2026, 3,998 restricted stock units converted into 3,998 shares of common stock on a one-for-one basis, increasing his direct holdings to 7,792 shares.

The RSUs were originally granted on November 17, 2020, vested on June 1, 2021, and delivery of the underlying shares was deferred until June 15, 2026. This filing reflects a compensation-related share delivery, with no open-market buying or selling reported.

Insider Trade Summary

3,998 shares exercised/converted

Exercise 2 txns

Insider MYERS RICHARD B

Role Director

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	3,998	$0.00	$0.00
Exercise	Common Stock	3,998	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 0 contracts (Direct); Common Stock — 7,792 shares (Direct)

Footnotes (2)

1. F1. Restricted stock units convert into common stock on a one-for-one basis.
2. F2. On November 17, 2020, the reporting person was granted 3,998 restricted stock units, which vested on June 1, 2021, and the reporting person's receipt of the shares of common stock was deferred until June 15, 2026.

Key Figures

RSUs converted: 3,998 units Common shares received: 3,998 shares Total shares after transaction: 7,792 shares +1 more

4 metrics

RSUs converted 3,998 units Restricted stock units converting into common stock on June 15, 2026

Common shares received 3,998 shares One-for-one conversion from restricted stock units on June 15, 2026

Total shares after transaction 7,792 shares Director’s direct holdings following the June 15, 2026 conversion

Original RSU grant 3,998 units Granted November 17, 2020; vested June 1, 2021; delivery deferred to June 15, 2026

Key Terms

Restricted Stock Units, one-for-one basis, derivative security

3 terms

Restricted Stock Units financial

"On November 17, 2020, the reporting person was granted 3,998 restricted stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

one-for-one basis financial

"Restricted stock units convert into common stock on a one-for-one basis."

derivative security financial

"transaction_code_description: Exercise or conversion of derivative security"

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did MP (MP) report for Richard B. Myers?

MP Materials reported that director Richard B. Myers received 3,998 common shares when his restricted stock units converted on June 15, 2026. This transaction reflects delivery of previously earned equity compensation rather than an open-market purchase or sale of MP shares.

How many MP (MP) shares did Richard B. Myers acquire in this Form 4?

Richard B. Myers acquired 3,998 shares of MP Materials common stock through the conversion of restricted stock units. These units converted on a one-for-one basis into common shares as part of his equity compensation arrangement, rather than a cash purchase in the market.

What is Richard B. Myers’ MP (MP) shareholding after the reported transaction?

After the conversion of restricted stock units, Richard B. Myers directly holds 7,792 shares of MP Materials common stock. This total reflects his position immediately following the June 15, 2026 transaction as disclosed in the Form 4 insider filing with the SEC.

When were the MP (MP) restricted stock units granted and vested for Myers?

The 3,998 restricted stock units were granted to Richard B. Myers on November 17, 2020 and vested on June 1, 2021. However, his receipt of the underlying common shares was contractually deferred until June 15, 2026, when they were finally delivered.

Does the MP (MP) Form 4 show any open-market buying or selling by Myers?

The Form 4 does not show any open-market buying or selling by Richard B. Myers. It records only the exercise and conversion of 3,998 restricted stock units into common shares, a non-cash equity compensation event rather than a discretionary trade in MP stock.

How do the restricted stock units in MP (MP) convert into common stock?

The restricted stock units convert into MP Materials common stock on a one-for-one basis. In this filing, 3,998 RSUs became 3,998 common shares when delivered, consistent with the terms described in the footnotes to the insider transaction disclosure.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 06/15/2026 - 07:58 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

MYERS RICHARD B

(Last) (First) (Middle)

1700 S. PAVILION CENTER DRIVE, SUITE 800

(Street)

LAS VEGAS NEVADA 89135

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
MP Materials Corp. / DE [ MP ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/15/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/15/2026		M		3,998	A	(1)	7,792	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	(2)	06/15/2026		M			3,998	(2)	(2)	Common Stock	3,998	$0	0	D

Explanation of Responses:

1. Restricted stock units convert into common stock on a one-for-one basis.

2. On November 17, 2020, the reporting person was granted 3,998 restricted stock units, which vested on June 1, 2021, and the reporting person's receipt of the shares of common stock was deferred until June 15, 2026.

Remarks:

	/s/ Elliot D. Hoops, Attorney-In-Fact for Richard B. Myers	06/15/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)