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arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $17.13 to $17.3, 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 range set forth above."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 1,038,662 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":1280498,"source":{"system":"sec-edgar","filing":"0001476220-26-000029","document":"wk-form4_1780007071.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000029/wk-form4_1780007071.xml","form_type":"4"}},{"id":760508,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":20017,"kind":"person","name":"Stepien Thomas M","position":1,"cik":"0002067233","reported_name":"Stepien Thomas M","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common stock","published_at":"2026-05-28T22:22:06.000Z","date":"2026-05-27","kind":"sale","planned":false,"acquired":false,"shares":4375,"price":17.1935,"value":75221.5625,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $17.13 to $17.3, 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 range set forth above."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 615,625 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":694923,"source":{"system":"sec-edgar","filing":"0002067233-26-000012","document":"wk-form4_1780006923.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2067233/000206723326000012/wk-form4_1780006923.xml","form_type":"4"}},{"id":760408,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2026-05-28T22:12:28.000Z","date":"2026-05-27","kind":"sale","planned":false,"acquired":false,"shares":3208,"price":17.1935,"value":55156.748,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $17.13 to $17.3, 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 range set forth above."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 584,308 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":801310,"source":{"system":"sec-edgar","filing":"0001940928-26-000020","document":"wk-form4_1780006345.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000020/wk-form4_1780006345.xml","form_type":"4"}},{"id":760614,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":37816,"kind":"person","name":"DIXON DONALD R","position":1,"cik":"0001045434","reported_name":"DIXON DONALD R","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common stock","published_at":"2026-05-28T22:10:01.000Z","date":"2026-05-26","kind":"sale","planned":false,"acquired":false,"shares":17895,"price":17.8962,"value":320252.499,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"On July 22, 2025, the reporting person transferred 125,000 shares of the issuer's common stock, which were previously held directly by the reporting person, to the The Dixon Revocable Trust, for which the reporting person and his spouse are co-trustees."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"These securities are held directly by The Dixon Revocable Trust, for which the reporting person and his spouse are co-trustees."}],"balance_after":484380,"source":{"system":"sec-edgar","filing":"0001045434-26-000005","document":"wk-form4_1780006199.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1045434/000104543426000005/wk-form4_1780006199.xml","form_type":"4"}},{"id":763662,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19901,"kind":"person","name":"Sun Kang","position":1,"cik":"0001476220","reported_name":"Sun Kang","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common stock","published_at":"2026-05-26T23:31:49.000Z","date":"2026-05-21","kind":"sale","planned":false,"acquired":false,"shares":67796,"price":14.7884,"value":1002594.3664,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $14.54 to $15.08, 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 range set forth above."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 1,039,443 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":1280854,"source":{"system":"sec-edgar","filing":"0001476220-26-000025","document":"wk-form4_1779838306.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000025/wk-form4_1779838306.xml","form_type":"4"}},{"id":764056,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2026-05-26T23:10:26.000Z","date":"2026-05-21","kind":"sale","planned":false,"acquired":false,"shares":28812,"price":14.7884,"value":426083.3808,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $14.54 to $15.08, 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 range set forth above."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 591,183 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":804518,"source":{"system":"sec-edgar","filing":"0001940928-26-000016","document":"wk-form4_1779837023.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000016/wk-form4_1779837023.xml","form_type":"4"}},{"id":764168,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":20017,"kind":"person","name":"Stepien Thomas M","position":1,"cik":"0002067233","reported_name":"Stepien Thomas M","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common stock","published_at":"2026-05-26T23:03:21.000Z","date":"2026-05-21","kind":"sale","planned":false,"acquired":false,"shares":60702,"price":14.7884,"value":897685.4568,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $14.54 to $15.08, 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 range set forth above."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 625,000 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":699298,"source":{"system":"sec-edgar","filing":"0002067233-26-000008","document":"wk-form4_1779836599.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2067233/000206723326000008/wk-form4_1779836599.xml","form_type":"4"}},{"id":788686,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":20017,"kind":"person","name":"Stepien Thomas M","position":1,"cik":"0002067233","reported_name":"Stepien Thomas M","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common stock","published_at":"2026-05-07T20:53:21.000Z","date":"2025-12-19","kind":"grant","planned":false,"acquired":true,"shares":200000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This Form 4/A is filed solely to correct the vesting schedule of the restricted stock units of the reporting person reported in the original filing. 2/16th of the shares subject to the award will vest on May 20, 2026 and 1/16th of the shares subject to the award will vest quarterly thereafter on each August 20, November 20, February 20 and May 20, subject to the reporting person's continued service on each such date, until the award is fully vested on November 20, 2029."}],"balance_after":760000,"source":{"system":"sec-edgar","filing":"0002067233-26-000004","document":"wk-form4a_1778187198.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2067233/000206723326000004/wk-form4a_1778187198.xml","form_type":"4/A","original_submission_date":"2025-12-22"}},{"id":788473,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19901,"kind":"person","name":"Sun Kang","position":1,"cik":"0001476220","reported_name":"Sun Kang","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common stock","published_at":"2026-05-07T20:51:56.000Z","date":"2026-05-05","kind":"grant","planned":false,"acquired":true,"shares":6250,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The securities are represented by restricted stock units. Each restricted stock unit represents the reporting person's right to receive one share of the issuer's common stock. 1/8th of shares subject to award will vest on May 20, 2026 and quarterly thereafter on each August 20, November 20, February 20 and May 20, subject to the reporting person's continued service on each such date, until the award is fully vested on February 20, 2028."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 1,165,635 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":1348650,"source":{"system":"sec-edgar","filing":"0001476220-26-000017","document":"wk-form4_1778187113.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000017/wk-form4_1778187113.xml","form_type":"4"}},{"id":819436,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19901,"kind":"person","name":"Sun Kang","position":1,"cik":"0001476220","reported_name":"Sun Kang","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2026-04-02T20:51:04.000Z","date":"2026-04-01","kind":"exercise","planned":false,"acquired":false,"shares":187495,"price":3.68,"value":689981.6,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2025."}],"balance_after":1787007,"derivative":{"exercise_price":3.68,"exercise_date":"2024-10-23","expiration_date":"2031-12-15","underlying":"Common stock","underlying_shares":187495},"source":{"system":"sec-edgar","filing":"0001476220-26-000015","document":"wk-form4_1775163061.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000015/wk-form4_1775163061.xml","form_type":"4"}},{"id":819435,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19901,"kind":"person","name":"Sun Kang","position":1,"cik":"0001476220","reported_name":"Sun Kang","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (right to buy)","published_at":"2026-04-02T20:51:04.000Z","date":"2026-04-01","kind":"exercise","planned":false,"acquired":false,"shares":1312505,"price":1.78,"value":2336258.9,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2025."}],"balance_after":0,"derivative":{"exercise_price":1.78,"exercise_date":"2022-09-14","expiration_date":"2031-06-16","underlying":"Common stock","underlying_shares":1312505},"source":{"system":"sec-edgar","filing":"0001476220-26-000015","document":"wk-form4_1775163061.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000015/wk-form4_1775163061.xml","form_type":"4"}},{"id":819434,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19901,"kind":"person","name":"Sun Kang","position":1,"cik":"0001476220","reported_name":"Sun Kang","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common stock","published_at":"2026-04-02T20:51:04.000Z","date":"2026-04-01","kind":"sale","planned":false,"acquired":false,"shares":249037,"price":16.7829,"value":4179563.0673,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $16.37 to $17.31, 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 range set forth above."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 1,159,385 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":1342400,"source":{"system":"sec-edgar","filing":"0001476220-26-000015","document":"wk-form4_1775163061.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000015/wk-form4_1775163061.xml","form_type":"4"}},{"id":819433,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19901,"kind":"person","name":"Sun Kang","position":1,"cik":"0001476220","reported_name":"Sun Kang","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common stock","published_at":"2026-04-02T20:51:04.000Z","date":"2026-04-01","kind":"sale","planned":false,"acquired":false,"shares":1250963,"price":15.7328,"value":19681150.6864,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $15.37 to $16.36, inclusive. 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Each restricted stock unit represents the reporting person's right to receive one share of the issuer's common stock. 1/4th of the restricted stock units subject to the award will vest on February 20, 2027 and the remainder will vest quarterly over three years thereafter, on each May 20, August 20, November 20 and February 20, subject to the reporting person's continued service on each such date, until the award is fully vested on February 20, 2030."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 600,000 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":610000,"source":{"system":"sec-edgar","filing":"0002067233-25-000010","document":"wk-form4_1766411211.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2067233/000206723325000010/wk-form4_1766411211.xml","form_type":"4"}},{"id":969704,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Stock Option (right to buy)","published_at":"2025-12-15T23:25:33.000Z","date":"2025-12-11","kind":"exercise","planned":false,"acquired":false,"shares":125000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025."}],"balance_after":310962,"derivative":{"exercise_price":0.05,"exercise_date":"2022-09-14","expiration_date":"2027-03-15","underlying":"Common stock","underlying_shares":125000},"source":{"system":"sec-edgar","filing":"0001940928-25-000020","document":"wk-form4_1765841130.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092825000020/wk-form4_1765841130.xml","form_type":"4"}},{"id":969703,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2025-12-15T23:25:33.000Z","date":"2025-12-11","kind":"sale","planned":false,"acquired":false,"shares":198255,"price":10.5086,"value":2083382.493,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is an average execution price. 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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 range set forth above."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":821951,"source":{"system":"sec-edgar","filing":"0001940928-25-000018","document":"wk-form4_1764114929.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092825000018/wk-form4_1764114929.xml","form_type":"4"}},{"id":988624,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19901,"kind":"person","name":"Sun Kang","position":1,"cik":"0001476220","reported_name":"Sun Kang","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Common stock","published_at":"2025-11-25T23:54:30.000Z","date":"2025-11-21","kind":"sale","planned":false,"acquired":false,"shares":68655,"price":10.0813,"value":692131.6515,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $10.05 to $10.13, 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 range set forth above."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 1,285,576 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":1403651,"source":{"system":"sec-edgar","filing":"0001476220-25-000023","document":"wk-form4_1764114867.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622025000023/wk-form4_1764114867.xml","form_type":"4"}},{"id":993763,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19901,"kind":"person","name":"Sun Kang","position":1,"cik":"0001476220","reported_name":"Sun Kang","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Executive Officer"}}],"security":"Stock Option (right to buy)","published_at":"2025-11-19T22:49:54.000Z","date":"2025-11-17","kind":"exercise","planned":false,"acquired":false,"shares":41653,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 18, 2025."}],"balance_after":0,"derivative":{"exercise_price":0.62,"exercise_date":"2022-09-14","expiration_date":"2027-03-15","underlying":"Common stock","underlying_shares":41653},"source":{"system":"sec-edgar","filing":"0001476220-25-000018","document":"wk-form4_1763592590.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622025000018/wk-form4_1763592590.xml","form_type":"4"}}],"next_cursor":"2025-11-19T22:49:54.000000Z,993763"}