MP Materials reports Form 144: insider sale of 13,914 shares

MP Materials Corp submitted a Form 144 reporting proposed sales of Common Stock.

Rhea-AI Filing Summary

MP Materials Corp submitted a Form 144 reporting proposed sales of Common Stock. The excerpt lists vested restricted shares of 3,093 on 01/12/2026 and 3,865 on 01/13/2026. It also shows a prior sale by Elliot Hoops of 13,914 shares on 03/16/2026 for $835,031.53.

Insights

Securities Compliance Analyst

Form 144 records proposed resale of common shares and recent insider sale.

The filing lists proposed sales of common stock and records restricted stock vesting events on 01/12/2026 and 01/13/2026. It also documents a completed sale by Elliot Hoops of 13,914 shares on 03/16/2026 for $835,031.53.

These items are routine regulatory notices of securities dispositions; cash‑flow treatment and aggregate registered offering amounts beyond listed line items are not stated in the provided excerpt. Subsequent SEC submissions or broker confirmations would provide full distribution details.

Key Figures

Reported numeric entry: 6,958 Reported numeric entry: 521,850 Reported numeric entry: 177,667,450 +5 more

8 metrics

Reported numeric entry 6,958 appears in securities line with Merrill and 05/08/2026

Reported numeric entry 521,850 appears in same securities line

Reported numeric entry 177,667,450 appears in same securities line

Restricted stock vest 3,093 shares vested on 01/12/2026

Restricted stock vest 3,865 shares vested on 01/13/2026

Prior sale quantity 13,914 shares sold by Elliot Hoops on 03/16/2026

Proceeds from prior sale $835,031.53 proceeds reported for 03/16/2026 sale

Listing exchange NYSE exchange noted in securities line with date 05/08/2026

Key Terms

Form 144, Restricted Stock Vest, Proceeds

3 terms

Form 144 regulatory

"Filer Information | 144: Filer Information"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Restricted Stock Vest financial

"Restricted Stock Vest | MP Materials Corp | 3093 | 01/12/2026"

A restricted stock vest is the moment when shares granted to an employee or executive under conditions (like staying at the company or hitting targets) officially become theirs to keep or sell. Think of it as a timed gift that unlocks only after certain rules are met. Investors watch vesting because it can change who controls shares, create potential selling pressure when large blocks unlock, and reveal how management’s incentives are aligned with company performance.

Proceeds financial

"13914 | 835031.53 144: Remarks and Signature"

FAQ

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

What does MP's Form 144 disclose about share vesting?

It discloses restricted stock vests of 3,093 and 3,865 shares on 01/12/2026 and 01/13/2026. These lines show the dates and quantities of vested restricted common stock recorded in the excerpt.

Who sold shares recently according to the MP Form 144 excerpt?

Elliot Hoops sold 13,914 shares on 03/16/2026. The excerpt lists the sale and the reported cash amount of $835,031.53 for that transaction.

Does the excerpt state the total shares registered for resale?

The excerpt lists numeric entries (for example, 6,958) but does not present an explicit cover sentence stating a single registered total. The provided lines show several numeric fields and dates without a consolidated registered‑amount sentence.

What cash proceeds are reported in the filing excerpt?

The excerpt reports proceeds of $835,031.53 tied to Elliot Hoops' sale of 13,914 shares on 03/16/2026. No other dollar proceeds are shown in the provided lines.

Which broker or transfer agent appears in the excerpt for these securities?

The excerpt references Merrill with an address line for handling securities entries. No further broker role or distribution method is specified in the excerpt.

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

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Accepted by SEC EDGAR 05/08/2026 - 04:18 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001862894
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	MP Materials Corp.
SEC File Number	001-39277
Address of Issuer	1700 S. Pavilion Center Drive, Suite 800 Las Vegas NEVADA 89135
Phone	702-844-6111
Name of Person for Whose Account the Securities are To Be Sold	Elliot Hoops
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Merrill 8890 Lyra Dr 5th Floor Columbus OH 43240	6958	521850	177667450	05/08/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	01/12/2026	Restricted Stock Vest	MP Materials Corp			3093	01/12/2026	NA
Common	01/13/2026	Restricted Stock Vest	MP Materials Corp			3865	01/13/2026	NA

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Elliot Hoops 1700 S. PAVILION CENTER DR. SUITE 800 LAS VEGAS NV 89135	Common	03/16/2026	13914	835031.53

144: Remarks and Signature

Remarks
Date of Notice	05/08/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	11/20/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	Elliot Hoops
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)