| 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 |
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| 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*
(Street)
(Country) | 2. Issuer Name and Ticker or Trading Symbol
USA Rare Earth, Inc. [ USAR ] | 5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
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| 2a. Foreign Trading Symbol
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| 3. Date of Earliest Transaction
(Month/Day/Year) 10/01/2026 | 6. Individual or Joint/Group Filing (Check Applicable Line)
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| 4. If Amendment, Date of Original Filed
(Month/Day/Year) |
| Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned | ||||||||||
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| 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 | ||||||
| Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities) | |||||||||||||||
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| 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 | (1) | 10/01/2026 | A | 108,696(2) | (1) | (1) | Common Stock, par value $0.0001 per share | 108,696(2) | $0 | 108,696 | I | The Mithrastarios Trust(1) | |||
| Restricted Stock Units | (3) | 10/01/2026 | A | 362,319(2) | (3) | (3) | Common Stock, par value $0.0001 per share | 362,319(2) | $0 | 362,319 | I | The Mithrastarios Trust(3) | |||
| Restricted Stock Units | (4) | (4) | (4) | Common Stock, par value $0.0001 per share | 226,373(2) | 226,373 | I | The Mithrastarios Trust(4) | |||||||
| Explanation of Responses: |
| 1. The restricted stock unit vests 1/2 on October 1, 2027 and 1/2 on October 1, 2028, subject to reporting person's continued service through each vesting date. The award vests in full if the reporting person separates from service as a "Good Leaver" (subject to six-month delay under Section 409A of the Internal Revenue Code), or on or after age 65. The reporting person contributed 108,696 Restricted Stock Units to The Mithrastarios Trust on October 5, 2026, in a transaction that resulted in a change in form of beneficial ownership from direct to indirect. |
| 2. Each restricted stock unit represents the right to receive, at settlement, one (1) share of the Issuer's common stock. |
| 3. The restricted stock unit vests 1/3 on October 1, 2027, 1/3 on October 1, 2028, and 1/3 on October 1, 2029 subject to reporting person's continued service through each vesting date. The award vests in full if the reporting person separates from service as a "Good Leaver" (subject to six-month delay under Section 409A of the Internal Revenue Code), or on or after age 65. The reporting person contributed 362,319 Restricted Stock Units to The Mithrastarios Trust on October 5, 2026, in a transaction that resulted in a change in form of beneficial ownership from direct to indirect. |
| 4. The restricted stock unit vests upon obtaining age 65; however the underlying shares will be released to the reporting person in two equal tranches upon "separation from service" on or after age 65 or as a "Good Leaver" (subject to six-month delay under Section 409A of the Internal Revenue Code), and on the first anniversary of such separation. The award of 226,373 Restricted Stock Units was granted on September 3, 2026. The reporting person contributed 226,373 Restricted Stock Units to The Mithrastarios Trust on September 18, 2026, in a transaction that resulted in a change in form of beneficial ownership from direct to indirect |
| Remarks: |
| Exhibit 24 |
| /s/ Derek Ching, attorney-in-fact for Thrasyvoulos Moraitis | 10/05/2026 | |
| ** 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) | ||