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These shares were not sold by the Reporting Person."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 458,528 shares of Class A Common Stock underlying restricted stock units, which are subject to forfeiture until they vest."}],"balance_after":766437,"source":{"system":"sec-edgar","filing":"0002039201-26-000008","document":"form4-09032026_050901.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2039201/000203920126000008/form4-09032026_050901.xml","form_type":"4"}},{"id":770289,"issuer":{"id":2220,"kind":"organization","name":"SES AI Corp","symbol":"SES"},"owners":[{"id":2221,"kind":"person","name":"Xu Kang","position":1,"cik":"0002039201","reported_name":"Xu Kang","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF TECHNOLOGY OFFICER"}}],"security":"Class A Common Stock","published_at":"2026-05-20T21:30:14.000Z","date":"2026-05-18","kind":"grant","planned":false,"acquired":true,"shares":221239,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents shares of Class A common stock, par value $0.0001 per share (\"Class A Common Stock\"), underlying restricted stock units (\"RSUs\") granted to the reporting person on May 18, 2026 (the \"Grant Date\") pursuant to the Issuer's 2021 Incentive Award Plan. The RSUs will vest, and an equal number of shares of Class A Common Stock will be deliverable to the reporting person, in three equal installments on the first, second and third anniversaries of the Grant Date, subject to continued employment or service through each applicable vesting date."},{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares of Class A common stock, par value $0.0001 per share (\"Class A Common Stock\"), underlying restricted stock units (\"RSUs\") granted to the reporting person on May 18, 2026 (the \"Grant Date\") pursuant to the Issuer's 2021 Incentive Award Plan. The RSUs will vest, and an equal number of shares of Class A Common Stock will be deliverable to the reporting person, in three equal installments on the first, second and third anniversaries of the Grant Date, subject to continued employment or service through each applicable vesting date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 537,894 shares of Class A Common Stock underlying restricted stock units, which are subject to forfeiture until they vest."}],"balance_after":801635,"source":{"system":"sec-edgar","filing":"0002039201-26-000006","document":"form4-05202026_050510.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2039201/000203920126000006/form4-05202026_050510.xml","form_type":"4"}},{"id":824410,"issuer":{"id":2220,"kind":"organization","name":"SES AI Corp","symbol":"SES"},"owners":[{"id":2221,"kind":"person","name":"Xu Kang","position":1,"cik":"0002039201","reported_name":"Xu Kang","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF TECHNOLOGY OFFICER"}}],"security":"Class A Common Stock","published_at":"2026-03-31T21:30:17.000Z","date":"2026-03-27","kind":"tax_withholding","planned":false,"acquired":false,"shares":39593,"price":0.9873,"value":39090.1689,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents shares withheld to cover the Reporting Person's withholding tax obligations in connection with the vesting of restricted stock units (\"RSUs\"). These shares were not sold by the Reporting Person."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 316,655 shares of Class A Common Stock underlying restricted stock units, which are subject to forfeiture until they vest."}],"balance_after":580396,"source":{"system":"sec-edgar","filing":"0002039201-26-000004","document":"form4-03312026_050309.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2039201/000203920126000004/form4-03312026_050309.xml","form_type":"4"}},{"id":912425,"issuer":{"id":2220,"kind":"organization","name":"SES AI Corp","symbol":"SES"},"owners":[{"id":2221,"kind":"person","name":"Xu Kang","position":1,"cik":"0002039201","reported_name":"Xu Kang","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF TECHNOLOGY OFFICER"}}],"security":"Class A Common Stock","published_at":"2026-02-10T22:45:06.000Z","date":"2026-02-06","kind":"tax_withholding","planned":false,"acquired":false,"shares":35063,"price":1.88,"value":65918.44,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents shares withheld to cover the Reporting Person's withholding tax obligations in connection with the vesting of restricted stock units (\"RSUs\"). These shares were not sold by the Reporting Person."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 399,988 shares of Class A Common Stock underlying restricted stock units, which are subject to forfeiture until they vest."}],"balance_after":619989,"source":{"system":"sec-edgar","filing":"0002039201-26-000002","document":"form4-02102026_050201.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2039201/000203920126000002/form4-02102026_050201.xml","form_type":"4"}},{"id":1048235,"issuer":{"id":2220,"kind":"organization","name":"SES AI Corp","symbol":"SES"},"owners":[{"id":2221,"kind":"person","name":"Xu Kang","position":1,"cik":"0002039201","reported_name":"Xu Kang","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF TECHNOLOGY OFFICER"}}],"security":"Class A Common Stock","published_at":"2025-09-04T20:30:20.000Z","date":"2025-09-03","kind":"tax_withholding","planned":false,"acquired":false,"shares":39238,"price":1.09,"value":42769.42,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents shares withheld to cover the Reporting Person's withholding tax obligations in connection with the vesting of restricted stock units (\"RSUs\"). These shares were not sold by the Reporting Person."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 470,609 shares of Class A Common Stock underlying restricted stock units, which are subject to forfeiture until they vest."}],"balance_after":655052,"source":{"system":"sec-edgar","filing":"0001415889-25-023678","document":"form4-09042025_040903.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2039201/000141588925023678/form4-09042025_040903.xml","form_type":"4"}},{"id":1186790,"issuer":{"id":2220,"kind":"organization","name":"SES AI Corp","symbol":"SES"},"owners":[{"id":2221,"kind":"person","name":"Xu Kang","position":1,"cik":"0002039201","reported_name":"Xu Kang","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF TECHNOLOGY OFFICER"}}],"security":"Class A Common Stock","published_at":"2025-04-01T21:25:17.000Z","date":"2025-03-28","kind":"grant","planned":false,"acquired":true,"shares":250000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 549,973 shares of Class A Common Stock underlying restricted stock units, which are subject to forfeiture until they vest."}],"balance_after":694290,"source":{"system":"sec-edgar","filing":"0001415889-25-009409","document":"form4-04012025_050414.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2039201/000141588925009409/form4-04012025_050414.xml","form_type":"4"}},{"id":1274342,"issuer":{"id":2220,"kind":"organization","name":"SES AI Corp","symbol":"SES"},"owners":[{"id":2221,"kind":"person","name":"Xu Kang","position":1,"cik":"0002039201","reported_name":"Xu Kang","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"CHIEF TECHNOLOGY OFFICER"}}],"security":"Class A Common Stock","published_at":"2025-02-12T02:30:06.000Z","date":"2025-02-10","kind":"sale","planned":true,"acquired":false,"shares":27969,"price":1.1713,"value":32760.0897,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to an automatic sell-to-cover instruction adopted by the Reporting Person on February 6, 2024 to cover applicable withholding taxes on the vesting of restricted stock units. The automatic sell-to-cover instructions were intended to comply with the requirements of Rule 10b5-1(c). The sale was not a discretionary trade by the Reporting Person."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.13 to $1.26, inclusive. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer, 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 ranges set forth in this footnote to this Form 4."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 299,973 shares of Class A Common Stock underlying restricted stock units, which are subject to forfeiture until they vest."}],"balance_after":444290,"source":{"system":"sec-edgar","filing":"0001415889-25-003674","document":"form4-02112025_090201.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2039201/000141588925003674/form4-02112025_090201.xml","form_type":"4"}}]}