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  4. [Form 4] MP Materials Corp. / DE Insider Trading Activity

MP Materials (NYSE: MP) legal chief sells 7,823 shares via plan

Filing Impact
(Very High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

MP Materials Corp.'s General Counsel and Secretary, Elliot Dean Hoops, reported a planned stock sale under a pre-arranged Rule 10b5-1 trading plan. On January 20, 2026, he sold 7,823 shares of common stock at a weighted average price of $68.21 per share, with individual trades executed between $68.00 and $68.55. Following the sale, he beneficially owned 74,967 shares directly and an additional 1,000 shares indirectly held by his spouse.

Positive

  • None.

Negative

  • None.
Insider Hoops Elliot Dean
Role General Counsel and Secretary
Sold 7,823 shs ($534K)
Type Security Shares Price Value
Sale Common Stock 7,823 $68.21 $534K
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 74,967 shares (Direct); Common Stock — 1,000 shares (Indirect, By Spouse)
Footnotes (1)
  1. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 26, 2025. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $68.00 to $68.55. 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.
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Form 4 Insider Transactions: What Each Field Means →
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).
X
 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*
Hoops Elliot Dean
(Last) (First) (Middle)
1700 S. PAVILION CENTER DRIVE, SUITE 800
(Street)
LAS VEGAS NV 89135
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
MP Materials Corp. / DE [ MP ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
General Counsel and Secretary
3. Date of Earliest Transaction (Month/Day/Year)
01/20/2026
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
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 01/20/2026 S(1) 7,823 D $68.21(2) 74,967 D
Common Stock 1,000 I By Spouse
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
Explanation of Responses:
1. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 26, 2025.
2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $68.00 to $68.55. 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.
Remarks:
/s/ Elliot D. Hoops 01/22/2026
** 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.

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did MP (MP Materials Corp.) report?

MP Materials Corp. reported that its General Counsel and Secretary, Elliot Dean Hoops, sold 7,823 shares of common stock on January 20, 2026.

At what price did Elliot Dean Hoops sell MP common stock?

The weighted average price for the sale was $68.21 per share, with individual trades executed between $68.00 and $68.55.

Was the MP insider sale made under a trading plan?

Yes. The filing states the sales were made under a Rule 10b5-1 trading plan adopted by Elliot Dean Hoops on February 26, 2025.

How many MP shares does Elliot Dean Hoops own after the reported sale?

After the transaction, he beneficially owned 74,967 MP common shares directly and 1,000 shares indirectly held by his spouse.

What does the weighted average price disclosure mean in this MP Form 4?

It means the $68.21 price is an average across multiple trades executed between $68.00 and $68.55. The insider offers to provide detailed trade data upon request.

What is Elliot Dean Hoops’ role at MP Materials Corp.?

He is an officer of MP Materials Corp., serving as General Counsel and Secretary, and is the reporting person on this Form 4.