{"transactions":[{"id":4631521,"issuer":{"id":4023,"kind":"organization","name":"USA Rare Earth, Inc.","symbol":"USAR"},"owners":[{"id":128891,"kind":"person","name":"Moraitis Thrasyvoulos","position":1,"cik":"0001918084","reported_name":"Moraitis Thrasyvoulos","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Restricted Stock Units","published_at":"2026-10-06T00:48:35.000Z","date":"2026-10-01","kind":"grant","planned":false,"acquired":true,"shares":362319,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"The Mithrastarios Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"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."},{"field":"shares","element":"transactionShares","label":"F2","text":"Each restricted stock unit represents the right to receive, at settlement, one (1) share of the Issuer's common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"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."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F2","text":"Each restricted stock unit represents the right to receive, at settlement, one (1) share of the Issuer's common stock."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"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."}],"balance_after":362319,"derivative":{"underlying":"Common Stock, par value $0.0001 per share","underlying_shares":362319},"source":{"system":"sec-edgar","filing":"0001918084-26-000009","document":"wk-form4_1791247712.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1970622/000191808426000009/wk-form4_1791247712.xml","form_type":"4"}},{"id":4631520,"issuer":{"id":4023,"kind":"organization","name":"USA Rare Earth, Inc.","symbol":"USAR"},"owners":[{"id":128891,"kind":"person","name":"Moraitis Thrasyvoulos","position":1,"cik":"0001918084","reported_name":"Moraitis Thrasyvoulos","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Restricted Stock Units","published_at":"2026-10-06T00:48:35.000Z","date":"2026-10-01","kind":"grant","planned":false,"acquired":true,"shares":108696,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"The Mithrastarios Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"shares","element":"transactionShares","label":"F2","text":"Each restricted stock unit represents the right to receive, at settlement, one (1) share of the Issuer's common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F2","text":"Each restricted stock unit represents the right to receive, at settlement, one (1) share of the Issuer's common stock."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"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."}],"balance_after":108696,"derivative":{"underlying":"Common Stock, par value $0.0001 per share","underlying_shares":108696},"source":{"system":"sec-edgar","filing":"0001918084-26-000009","document":"wk-form4_1791247712.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1970622/000191808426000009/wk-form4_1791247712.xml","form_type":"4"}},{"id":3535947,"issuer":{"id":4023,"kind":"organization","name":"USA Rare Earth, Inc.","symbol":"USAR"},"owners":[{"id":128891,"kind":"person","name":"Moraitis Thrasyvoulos","position":1,"cik":"0001918084","reported_name":"Moraitis Thrasyvoulos","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President"}}],"security":"Restricted Stock Units","published_at":"2026-09-08T20:53:49.000Z","date":"2026-09-03","kind":"grant","planned":false,"acquired":true,"shares":226373,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"The RSU 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."},{"field":"shares","element":"transactionShares","label":"F2","text":"Each restricted stock unit represents the right to receive, at settlement, one (1) share of the Issuer's common stock."},{"field":"shares","element":"transactionShares","label":"F3","text":"The RSU 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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The RSU 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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The RSU 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."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F2","text":"Each restricted stock unit represents the right to receive, at settlement, one (1) share of the Issuer's common stock."}],"balance_after":226373,"derivative":{"underlying":"Common Stock, par value $0.0001 per share","underlying_shares":226373},"source":{"system":"sec-edgar","filing":"0001918084-26-000007","document":"wk-form4_1788900826.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1970622/000191808426000007/wk-form4_1788900826.xml","form_type":"4"}},{"id":3535946,"issuer":{"id":4023,"kind":"organization","name":"USA Rare Earth, Inc.","symbol":"USAR"},"owners":[{"id":128891,"kind":"person","name":"Moraitis Thrasyvoulos","position":1,"cik":"0001918084","reported_name":"Moraitis Thrasyvoulos","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President"}}],"security":"Restricted Stock Units","published_at":"2026-09-08T20:53:49.000Z","date":"2026-09-03","kind":"grant","planned":false,"acquired":true,"shares":216541,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The restricted stock unit (\"RSU\") will vest in two tranches. The first tranche of  97,443 RSUs will vest on December 31, 2026 and  the second tranche of 119,098 RSUs will vest on December 31, 2027."},{"field":"shares","element":"transactionShares","label":"F1","text":"The restricted stock unit (\"RSU\") will vest in two tranches. The first tranche of  97,443 RSUs will vest on December 31, 2026 and  the second tranche of 119,098 RSUs will vest on December 31, 2027."},{"field":"shares","element":"transactionShares","label":"F2","text":"Each restricted stock unit represents the right to receive, at settlement, one (1) share of the Issuer's common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The restricted stock unit (\"RSU\") will vest in two tranches. The first tranche of  97,443 RSUs will vest on December 31, 2026 and  the second tranche of 119,098 RSUs will vest on December 31, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The restricted stock unit (\"RSU\") will vest in two tranches. The first tranche of  97,443 RSUs will vest on December 31, 2026 and  the second tranche of 119,098 RSUs will vest on December 31, 2027."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F2","text":"Each restricted stock unit represents the right to receive, at settlement, one (1) share of the Issuer's common stock."}],"balance_after":216541,"derivative":{"underlying":"Common Stock, par value $0.0001 per share","underlying_shares":216541},"source":{"system":"sec-edgar","filing":"0001918084-26-000007","document":"wk-form4_1788900826.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1970622/000191808426000007/wk-form4_1788900826.xml","form_type":"4"}}]}