MP files Form 144 for 150,000 Founder Shares

MP filed a Form 144 notice reporting 150,000 shares of Common Stock (listed as Founder Stock) to be sold, with the filing dated 05/27/2026.

Rhea-AI Filing Summary

MP filed a Form 144 notice reporting 150,000 shares of Common Stock (listed as Founder Stock) to be sold, with the filing dated 05/27/2026. The excerpt also lists prior sales by the James Henry Litinsky Revocable Trust totaling several transactions in April–May 2026.

Insights

Compliance Counsel

Form 144 notifies of planned resale of founder shares; prior trust sales are shown.

The filing lists 150,000 shares of Common Stock classified as Founder Stock and dated 11/17/2020 with the Form 144 entry dated 05/27/2026. It also records multiple recent trust sales in April–May 2026 with exact share counts and proceeds.

Cash treatment and buyer counterparties are not disclosed in the excerpt; subsequent filings or broker reports could show completed transactions if executed under Rule 144 procedures.

Key Figures

Noticed shares to be sold: 150,000 shares Sale on 05/13/2026: 177,188 shares Sale on 05/12/2026: 122,812 shares +4 more

7 metrics

Noticed shares to be sold 150,000 shares Founder Stock; Form 144 entry dated 05/27/2026

Sale on 05/13/2026 177,188 shares James Henry Litinsky Revocable Trust sale; proceeds <money>$11,540,116.77</money>

Sale on 05/12/2026 122,812 shares James Henry Litinsky Revocable Trust sale; proceeds <money>$8,093,390.73</money>

Sale on 04/20/2026 259,179 shares James Henry Litinsky Revocable Trust sale; proceeds <money>$16,588,149.58</money>

Sale on 04/17/2026 40,821 shares James Henry Litinsky Revocable Trust sale; proceeds <money>$2,613,459.75</money>

Aggregate reference number 178,022,198 Numeric value appearing on Form 144 line (context in excerpt)

Price-related figure <money>$9,783,000.00</money> Numeric value appearing on Form 144 line (context in excerpt)

Key Terms

Form 144, Founder Stock, Revocable Trust, Gross proceeds

4 terms

Form 144 regulatory

"144: Securities To Be Sold"

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.

Founder Stock market

"Common | 11/17/2020 | Founder Stock"

Revocable Trust legal

"JAMES HENRY LITINSKY REVOCABLE TRUST 1700 S. Pavilion Center Drive"

A revocable trust is a legal arrangement where the person who creates it keeps control and can change or cancel the trust at any time, while naming who will manage and receive the assets later. Think of it like a flexible folder for your investments and property that can be relabeled or reworked as circumstances change; it matters to investors because it determines how ownership is recorded, how easily assets transfer on incapacity or death, and whether holdings bypass public probate proceedings.

Gross proceeds financial

"177188 | 11540116.77"

The total amount of cash a company receives from a financing event or sale before any fees, expenses, taxes or deductions are taken out. Investors watch gross proceeds because it shows the raw scale of new capital being raised—think of it as the paycheck amount before withholdings—which helps assess how much funding is available for operations, growth, debt payoff or how much shareholder dilution might occur once costs are removed.

FAQ

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

What does MP's Form 144 filed on 05/27/2026 report?

It reports a notice to sell 150,000 shares of Common Stock classified as Founder Stock. The excerpt also lists multiple prior sales by the James Henry Litinsky Revocable Trust in April–May 2026 with share counts and gross proceeds.

Who sold shares recently according to the excerpt for MP?

The excerpt lists sales by the James Henry Litinsky Revocable Trust, including transactions of 177,188, 122,812, 259,179, and 40,821 shares on dates in April and May 2026 with gross proceeds shown per sale.

Are the dollar proceeds shown in MP's filing?

Yes; the excerpt shows gross proceeds next to each sale, for example $11,540,116.77 for 177,188 shares on 05/13/2026 and other amounts for April–May 2026 transactions listed.

Does this Form 144 mean the shares were sold immediately?

No; Form 144 is a notice of intent to sell under Rule 144. The excerpt shows planned/responsive notice and prior trust sales, but it does not itself confirm execution details or buyer identities.

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

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Accepted by SEC EDGAR 05/27/2026 - 04:46 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	0001831746
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	JAMES HENRY LITINSKY REVOCABLE TRUST
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
Relationship to Issuer	Director

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	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	150000	9783000.00	178022198	05/27/2026	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	11/17/2020	Founder Stock	Issuer			150000	11/17/2020	Not Applicable

* 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
JAMES HENRY LITINSKY REVOCABLE TRUST 1700 S. Pavilion Center Drive Suite 800 Las Vegas NV 89135	Common	05/13/2026	177188	11540116.77
JAMES HENRY LITINSKY REVOCABLE TRUST 1700 S. Pavilion Center Drive Suite 800 Las Vegas NV 89135	Common	05/12/2026	122812	8093390.73
James Henry Litinsky Rev Trust 1700 S. Pavilion Center Drive Suite 800 Las Vegas NV 89135	Common	04/20/2026	259179	16588149.58
James Henry Litinsky Rev Trust 1700 S. Pavilion Center Drive Suite 800 Las Vegas NV 89135	Common	04/17/2026	40821	2613459.75

144: Remarks and Signature

Remarks
Date of Notice	05/27/2026
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	/s/ James Henry Litinsky, Trustee
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)