{"transactions":[{"id":676113,"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":"2026-08-25T21:22:39.000Z","date":"2026-08-21","kind":"sale","planned":false,"acquired":false,"shares":62101,"price":10.341,"value":642186.441,"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 $10.10 to $10.48, 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 911,688 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":1218397,"source":{"system":"sec-edgar","filing":"0001476220-26-000034","document":"wk-form4_1787692956.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000034/wk-form4_1787692956.xml","form_type":"4"}},{"id":760117,"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":"2026-05-28T22:24:33.000Z","date":"2026-05-27","kind":"sale","planned":false,"acquired":false,"shares":356,"price":17.1935,"value":6120.886,"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 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":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":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. 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":1591437,"source":{"system":"sec-edgar","filing":"0001476220-26-000015","document":"wk-form4_1775163061.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000015/wk-form4_1775163061.xml","form_type":"4"}},{"id":819432,"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":"exercise","planned":false,"acquired":true,"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."},{"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":2842400,"source":{"system":"sec-edgar","filing":"0001476220-26-000015","document":"wk-form4_1775163061.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000015/wk-form4_1775163061.xml","form_type":"4"}},{"id":819431,"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":"exercise","planned":false,"acquired":true,"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."},{"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":2654905,"source":{"system":"sec-edgar","filing":"0001476220-26-000015","document":"wk-form4_1775163061.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000015/wk-form4_1775163061.xml","form_type":"4"}},{"id":829211,"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":"2026-03-24T23:11:33.000Z","date":"2026-03-23","kind":"sale","planned":false,"acquired":false,"shares":65046,"price":19.0589,"value":1239705.2094,"ownership":{"direct":false,"nature":"See Footnote"},"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 $18.89 to $19.36, 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":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"These securities are held directly by the KANG & CECILLIA SUN FAMILY REVOCABLE TRUST, for which the reporting person and his spouse are co-trustees."}],"balance_after":56406,"source":{"system":"sec-edgar","filing":"0001476220-26-000013","document":"wk-form4_1774393890.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000013/wk-form4_1774393890.xml","form_type":"4"}},{"id":829210,"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":"2026-03-24T23:11:33.000Z","date":"2026-03-23","kind":"sale","planned":false,"acquired":false,"shares":152823,"price":18.6863,"value":2855696.4249,"ownership":{"direct":false,"nature":"See Footnote"},"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":"F2","text":"The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $17.89 to $18.88, 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":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"These securities are held directly by the KANG & CECILLIA SUN FAMILY REVOCABLE TRUST, for which the reporting person and his spouse are co-trustees."}],"balance_after":121452,"source":{"system":"sec-edgar","filing":"0001476220-26-000013","document":"wk-form4_1774393890.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000013/wk-form4_1774393890.xml","form_type":"4"}},{"id":884630,"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":"2026-02-24T22:11:23.000Z","date":"2026-02-23","kind":"sale","planned":false,"acquired":false,"shares":61251,"price":10.1555,"value":622034.5305,"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 $9.96 to $10.35, 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 1,159,385 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":"0001476220-26-000011","document":"wk-form4_1771971079.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000011/wk-form4_1771971079.xml","form_type":"4"}},{"id":935346,"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":"2026-01-20T22:33:00.000Z","date":"2026-01-20","kind":"exercise","planned":false,"acquired":false,"shares":43185,"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":1312505,"derivative":{"exercise_price":1.78,"exercise_date":"2022-09-14","expiration_date":"2031-06-16","underlying":"Common stock","underlying_shares":43185},"source":{"system":"sec-edgar","filing":"0001476220-26-000005","document":"wk-form4_1768948377.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000005/wk-form4_1768948377.xml","form_type":"4"}},{"id":935345,"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":"2026-01-20T22:33:00.000Z","date":"2026-01-16","kind":"exercise","planned":false,"acquired":false,"shares":100210,"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":1355690,"derivative":{"exercise_price":1.78,"exercise_date":"2022-09-14","expiration_date":"2031-06-16","underlying":"Common stock","underlying_shares":100210},"source":{"system":"sec-edgar","filing":"0001476220-26-000005","document":"wk-form4_1768948377.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000005/wk-form4_1768948377.xml","form_type":"4"}},{"id":935344,"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":"2026-01-20T22:33:00.000Z","date":"2026-01-16","kind":"exercise","planned":false,"acquired":false,"shares":850338,"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":2.5,"exercise_date":"2024-10-23","expiration_date":"2030-09-17","underlying":"Common stock","underlying_shares":850338},"source":{"system":"sec-edgar","filing":"0001476220-26-000005","document":"wk-form4_1768948377.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000005/wk-form4_1768948377.xml","form_type":"4"}},{"id":935343,"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":"2026-01-20T22:33:00.000Z","date":"2026-01-20","kind":"sale","planned":false,"acquired":false,"shares":43185,"price":11.0287,"value":476274.4095,"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."},{"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 $11.00 to $11.10, 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 1,285,576 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":"0001476220-26-000005","document":"wk-form4_1768948377.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000005/wk-form4_1768948377.xml","form_type":"4"}},{"id":935342,"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":"2026-01-20T22:33:00.000Z","date":"2026-01-20","kind":"exercise","planned":false,"acquired":true,"shares":43185,"price":1.78,"value":76869.3,"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","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":1446836,"source":{"system":"sec-edgar","filing":"0001476220-26-000005","document":"wk-form4_1768948377.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000005/wk-form4_1768948377.xml","form_type":"4"}},{"id":935341,"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":"2026-01-20T22:33:00.000Z","date":"2026-01-16","kind":"sale","planned":false,"acquired":false,"shares":950548,"price":11.0659,"value":10518669.1132,"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."},{"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 $11.00 to $11.20, 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 1,285,576 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":"0001476220-26-000005","document":"wk-form4_1768948377.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000005/wk-form4_1768948377.xml","form_type":"4"}},{"id":935340,"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":"2026-01-20T22:33:00.000Z","date":"2026-01-16","kind":"exercise","planned":false,"acquired":true,"shares":100210,"price":1.78,"value":178373.8,"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","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":2354199,"source":{"system":"sec-edgar","filing":"0001476220-26-000005","document":"wk-form4_1768948377.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000005/wk-form4_1768948377.xml","form_type":"4"}},{"id":935339,"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":"2026-01-20T22:33:00.000Z","date":"2026-01-16","kind":"exercise","planned":false,"acquired":true,"shares":850338,"price":2.5,"value":2125845.0,"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","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":2253989,"source":{"system":"sec-edgar","filing":"0001476220-26-000005","document":"wk-form4_1768948377.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000005/wk-form4_1768948377.xml","form_type":"4"}},{"id":939179,"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":"2026-01-14T23:04:51.000Z","date":"2026-01-12","kind":"exercise","planned":false,"acquired":false,"shares":117201,"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":850338,"derivative":{"exercise_price":2.5,"exercise_date":"2024-10-23","expiration_date":"2030-09-17","underlying":"Common stock","underlying_shares":117201},"source":{"system":"sec-edgar","filing":"0001476220-26-000003","document":"wk-form4_1768431887.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000003/wk-form4_1768431887.xml","form_type":"4"}},{"id":939178,"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":"2026-01-14T23:04:51.000Z","date":"2026-01-12","kind":"exercise","planned":false,"acquired":false,"shares":208264,"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":2.44,"exercise_date":"2024-10-23","expiration_date":"2029-01-02","underlying":"Common stock","underlying_shares":208264},"source":{"system":"sec-edgar","filing":"0001476220-26-000003","document":"wk-form4_1768431887.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000003/wk-form4_1768431887.xml","form_type":"4"}},{"id":939177,"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":"2026-01-14T23:04:51.000Z","date":"2026-01-12","kind":"exercise","planned":false,"acquired":false,"shares":180802,"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":"2027-12-12","underlying":"Common stock","underlying_shares":180802},"source":{"system":"sec-edgar","filing":"0001476220-26-000003","document":"wk-form4_1768431887.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000003/wk-form4_1768431887.xml","form_type":"4"}},{"id":939176,"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":"2026-01-14T23:04:51.000Z","date":"2026-01-12","kind":"sale","planned":false,"acquired":false,"shares":506267,"price":10.0964,"value":5111474.1388,"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."},{"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 $10.00 to $10.25, 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 1,285,576 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":"0001476220-26-000003","document":"wk-form4_1768431887.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000003/wk-form4_1768431887.xml","form_type":"4"}},{"id":939175,"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":"2026-01-14T23:04:51.000Z","date":"2026-01-12","kind":"exercise","planned":false,"acquired":true,"shares":117201,"price":2.5,"value":293002.5,"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","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":1909918,"source":{"system":"sec-edgar","filing":"0001476220-26-000003","document":"wk-form4_1768431887.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000003/wk-form4_1768431887.xml","form_type":"4"}},{"id":939174,"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":"2026-01-14T23:04:51.000Z","date":"2026-01-12","kind":"exercise","planned":false,"acquired":true,"shares":208264,"price":2.44,"value":508164.16,"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","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":1792717,"source":{"system":"sec-edgar","filing":"0001476220-26-000003","document":"wk-form4_1768431887.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000003/wk-form4_1768431887.xml","form_type":"4"}},{"id":939173,"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":"2026-01-14T23:04:51.000Z","date":"2026-01-12","kind":"exercise","planned":false,"acquired":true,"shares":180802,"price":0.62,"value":112097.24,"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","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":1584453,"source":{"system":"sec-edgar","filing":"0001476220-26-000003","document":"wk-form4_1768431887.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622026000003/wk-form4_1768431887.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"}},{"id":993762,"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":27463,"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":180802,"derivative":{"exercise_price":0.62,"exercise_date":"2022-09-14","expiration_date":"2027-12-12","underlying":"Common stock","underlying_shares":27463},"source":{"system":"sec-edgar","filing":"0001476220-25-000018","document":"wk-form4_1763592590.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622025000018/wk-form4_1763592590.xml","form_type":"4"}},{"id":993761,"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":727950,"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":0.05,"exercise_date":"2022-09-14","expiration_date":"2027-03-15","underlying":"Common stock","underlying_shares":727950},"source":{"system":"sec-edgar","filing":"0001476220-25-000018","document":"wk-form4_1763592590.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622025000018/wk-form4_1763592590.xml","form_type":"4"}},{"id":993760,"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":202934,"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":0.98,"exercise_date":"2022-09-14","expiration_date":"2026-12-14","underlying":"Common stock","underlying_shares":202934},"source":{"system":"sec-edgar","filing":"0001476220-25-000018","document":"wk-form4_1763592590.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622025000018/wk-form4_1763592590.xml","form_type":"4"}},{"id":993759,"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":"2025-11-19T22:49:54.000Z","date":"2025-11-17","kind":"sale","planned":false,"acquired":false,"shares":1000000,"price":10.5953,"value":10595300.0,"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."},{"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 $10.19 to $11.30, 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 1,411,769 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":1472306,"source":{"system":"sec-edgar","filing":"0001476220-25-000018","document":"wk-form4_1763592590.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622025000018/wk-form4_1763592590.xml","form_type":"4"}},{"id":993758,"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":"2025-11-19T22:49:54.000Z","date":"2025-11-17","kind":"exercise","planned":false,"acquired":true,"shares":41653,"price":0.62,"value":25824.86,"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 1,411,769 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":2472306,"source":{"system":"sec-edgar","filing":"0001476220-25-000018","document":"wk-form4_1763592590.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622025000018/wk-form4_1763592590.xml","form_type":"4"}},{"id":993757,"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":"2025-11-19T22:49:54.000Z","date":"2025-11-17","kind":"exercise","planned":false,"acquired":true,"shares":27463,"price":0.62,"value":17027.06,"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 1,411,769 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":2430653,"source":{"system":"sec-edgar","filing":"0001476220-25-000018","document":"wk-form4_1763592590.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622025000018/wk-form4_1763592590.xml","form_type":"4"}},{"id":993756,"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":"2025-11-19T22:49:54.000Z","date":"2025-11-17","kind":"exercise","planned":false,"acquired":true,"shares":727950,"price":0.05,"value":36397.5,"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 1,411,769 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":2403190,"source":{"system":"sec-edgar","filing":"0001476220-25-000018","document":"wk-form4_1763592590.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622025000018/wk-form4_1763592590.xml","form_type":"4"}},{"id":993755,"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":"2025-11-19T22:49:54.000Z","date":"2025-11-17","kind":"exercise","planned":false,"acquired":true,"shares":202934,"price":0.98,"value":198875.32,"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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 1,411,769 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":1675240,"source":{"system":"sec-edgar","filing":"0001476220-25-000018","document":"wk-form4_1763592590.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622025000018/wk-form4_1763592590.xml","form_type":"4"}},{"id":1056759,"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":"2025-08-25T23:59:32.000Z","date":"2025-08-21","kind":"sale","planned":false,"acquired":false,"shares":65654,"price":6.8162,"value":447510.7948,"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 $6.78 to $6.91, 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 1,411,769 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."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"On June 10, 2025, the reporting person transferred 274,275 shares of the issuer's common stock, which were previously held directly by the reporting person, to the KANG & CECILLIA SUN FAMILY REVOCABLE TRUST, for which the reporting person and his spouse are co-trustees."}],"balance_after":1472306,"source":{"system":"sec-edgar","filing":"0001476220-25-000016","document":"wk-form4_1756166369.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622025000016/wk-form4_1756166369.xml","form_type":"4"}},{"id":1135229,"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":"2025-05-23T21:48:50.000Z","date":"2025-05-21","kind":"sale","planned":false,"acquired":false,"shares":69786,"price":2.432,"value":169719.552,"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 $2.40 to $2.48, 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 1,537,960 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":1812235,"source":{"system":"sec-edgar","filing":"0001476220-25-000008","document":"wk-form4_1748036924.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622025000008/wk-form4_1748036924.xml","form_type":"4"}},{"id":1194584,"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":"2025-03-21T21:03:14.000Z","date":"2025-03-19","kind":"grant","planned":false,"acquired":true,"shares":599400,"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. 1/16th of shares subject to award will vest on May 20, 2025 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, 2029."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 1,664,152 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":1882021,"source":{"system":"sec-edgar","filing":"0001476220-25-000004","document":"wk-form4_1742590987.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622025000004/wk-form4_1742590987.xml","form_type":"4"}},{"id":1249428,"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":"2025-02-25T00:42:08.000Z","date":"2025-02-21","kind":"sale","planned":false,"acquired":false,"shares":34353,"price":3.1332,"value":107634.8196,"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 $3.06 to $3.215, 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 1,064,752 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":1282621,"source":{"system":"sec-edgar","filing":"0001476220-25-000002","document":"wk-form4_1740444122.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622025000002/wk-form4_1740444122.xml","form_type":"4"}},{"id":1354187,"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":"2024-11-22T21:29:21.000Z","date":"2024-11-21","kind":"sale","planned":false,"acquired":false,"shares":33779,"price":1.9646,"value":66362.2234,"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 $1.93 to $2.02, 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 1,153,482 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":1316974,"source":{"system":"sec-edgar","filing":"0001476220-24-000007","document":"wk-form4_1732310949.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622024000007/wk-form4_1732310949.xml","form_type":"4"}},{"id":1381288,"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":"2024-10-25T22:32:29.000Z","date":"2024-10-23","kind":"grant","planned":false,"acquired":true,"shares":967539,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On October 23, 2024, Amprius, Inc. (\"Amprius Holdings\") voluntarily liquidated and dissolved and distributed to its stockholders on a pro rata basis an aggregate of 57,195,926 shares of the Issuer's common stock (the \"Liquidating Distribution\"). In connection with the Liquidating Distribution, the Issuer assumed Amprius Holdings' outstanding options to purchase shares of Amprius Holdings' Class A common stock (the \"Holdings Options\") granted under the Amprius, Inc. 2008 Stock Plan and the Amprius, Inc. Second Equity Incentive Plan (the \"Option Assumption\"). As a result of the Option Assumption, each Holdings Option held by the Reporting Person became an option to purchase a number of shares of the Issuer's common stock, subject to certain adjustments to the terms of such options to comply with the requirements of U.S. Internal Revenue Code treasury regulation relating to equity grant assumptions."},{"field":"price","element":"transactionPricePerShare","label":"F9","text":"Received in connection with the Option Assumption in exchange for stock options to acquire 1,393,713 shares of Amprius Holdings' Class A common stock at an exercise price of $1.73 per share."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The options are fully vested."}],"balance_after":967539,"derivative":{"exercise_price":2.5,"expiration_date":"2030-09-17","underlying":"Common stock","underlying_shares":967539},"source":{"system":"sec-edgar","filing":"0001628280-24-043854","document":"wk-form4_1729895543.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000162828024043854/wk-form4_1729895543.xml","form_type":"4"}},{"id":1381287,"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":"2024-10-25T22:32:29.000Z","date":"2024-10-23","kind":"grant","planned":false,"acquired":true,"shares":1974502,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On October 23, 2024, Amprius, Inc. (\"Amprius Holdings\") voluntarily liquidated and dissolved and distributed to its stockholders on a pro rata basis an aggregate of 57,195,926 shares of the Issuer's common stock (the \"Liquidating Distribution\"). In connection with the Liquidating Distribution, the Issuer assumed Amprius Holdings' outstanding options to purchase shares of Amprius Holdings' Class A common stock (the \"Holdings Options\") granted under the Amprius, Inc. 2008 Stock Plan and the Amprius, Inc. Second Equity Incentive Plan (the \"Option Assumption\"). As a result of the Option Assumption, each Holdings Option held by the Reporting Person became an option to purchase a number of shares of the Issuer's common stock, subject to certain adjustments to the terms of such options to comply with the requirements of U.S. Internal Revenue Code treasury regulation relating to equity grant assumptions."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"Received in connection with the Option Assumption in exchange for stock options to acquire 2,844,212 shares of Amprius Holdings' Class A common stock at an exercise price of $2.55 per share."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The options are fully vested."}],"balance_after":1974502,"derivative":{"exercise_price":3.68,"expiration_date":"2031-12-15","underlying":"Common stock","underlying_shares":1974502},"source":{"system":"sec-edgar","filing":"0001628280-24-043854","document":"wk-form4_1729895543.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000162828024043854/wk-form4_1729895543.xml","form_type":"4"}},{"id":1381286,"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":"2024-10-25T22:32:29.000Z","date":"2024-10-23","kind":"grant","planned":false,"acquired":true,"shares":1171476,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On October 23, 2024, Amprius, Inc. (\"Amprius Holdings\") voluntarily liquidated and dissolved and distributed to its stockholders on a pro rata basis an aggregate of 57,195,926 shares of the Issuer's common stock (the \"Liquidating Distribution\"). In connection with the Liquidating Distribution, the Issuer assumed Amprius Holdings' outstanding options to purchase shares of Amprius Holdings' Class A common stock (the \"Holdings Options\") granted under the Amprius, Inc. 2008 Stock Plan and the Amprius, Inc. Second Equity Incentive Plan (the \"Option Assumption\"). As a result of the Option Assumption, each Holdings Option held by the Reporting Person became an option to purchase a number of shares of the Issuer's common stock, subject to certain adjustments to the terms of such options to comply with the requirements of U.S. Internal Revenue Code treasury regulation relating to equity grant assumptions."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"Received in connection with the Option Assumption in exchange for stock options to acquire 1,687,476 shares of Amprius Holdings' Class A common stock at an exercise price of $0.54 per share."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The options are fully vested."}],"balance_after":1171476,"derivative":{"exercise_price":0.78,"expiration_date":"2034-09-26","underlying":"Common stock","underlying_shares":1171476},"source":{"system":"sec-edgar","filing":"0001628280-24-043854","document":"wk-form4_1729895543.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000162828024043854/wk-form4_1729895543.xml","form_type":"4"}},{"id":1381285,"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":"2024-10-25T22:32:29.000Z","date":"2024-10-23","kind":"grant","planned":false,"acquired":true,"shares":202934,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On October 23, 2024, Amprius, Inc. (\"Amprius Holdings\") voluntarily liquidated and dissolved and distributed to its stockholders on a pro rata basis an aggregate of 57,195,926 shares of the Issuer's common stock (the \"Liquidating Distribution\"). In connection with the Liquidating Distribution, the Issuer assumed Amprius Holdings' outstanding options to purchase shares of Amprius Holdings' Class A common stock (the \"Holdings Options\") granted under the Amprius, Inc. 2008 Stock Plan and the Amprius, Inc. Second Equity Incentive Plan (the \"Option Assumption\"). As a result of the Option Assumption, each Holdings Option held by the Reporting Person became an option to purchase a number of shares of the Issuer's common stock, subject to certain adjustments to the terms of such options to comply with the requirements of U.S. Internal Revenue Code treasury regulation relating to equity grant assumptions."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"Received in connection with the Option Assumption in exchange for stock options to acquire 292,321 shares of Amprius Holdings' Class A common stock at an exercise price of $0.68 per share."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The options are fully vested."}],"balance_after":202934,"derivative":{"exercise_price":0.98,"expiration_date":"2026-12-14","underlying":"Common stock","underlying_shares":202934},"source":{"system":"sec-edgar","filing":"0001628280-24-043854","document":"wk-form4_1729895543.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000162828024043854/wk-form4_1729895543.xml","form_type":"4"}},{"id":1381284,"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":"2024-10-25T22:32:29.000Z","date":"2024-10-23","kind":"grant","planned":false,"acquired":true,"shares":41653,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On October 23, 2024, Amprius, Inc. (\"Amprius Holdings\") voluntarily liquidated and dissolved and distributed to its stockholders on a pro rata basis an aggregate of 57,195,926 shares of the Issuer's common stock (the \"Liquidating Distribution\"). In connection with the Liquidating Distribution, the Issuer assumed Amprius Holdings' outstanding options to purchase shares of Amprius Holdings' Class A common stock (the \"Holdings Options\") granted under the Amprius, Inc. 2008 Stock Plan and the Amprius, Inc. Second Equity Incentive Plan (the \"Option Assumption\"). As a result of the Option Assumption, each Holdings Option held by the Reporting Person became an option to purchase a number of shares of the Issuer's common stock, subject to certain adjustments to the terms of such options to comply with the requirements of U.S. Internal Revenue Code treasury regulation relating to equity grant assumptions."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Received in connection with the Option Assumption in exchange for stock options to acquire 60,000 shares of Amprius Holdings' Class A common stock at an exercise price of $0.43 per share."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The options are fully vested."}],"balance_after":41653,"derivative":{"exercise_price":0.62,"expiration_date":"2027-03-15","underlying":"Common stock","underlying_shares":41653},"source":{"system":"sec-edgar","filing":"0001628280-24-043854","document":"wk-form4_1729895543.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000162828024043854/wk-form4_1729895543.xml","form_type":"4"}},{"id":1381283,"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":"2024-10-25T22:32:29.000Z","date":"2024-10-23","kind":"grant","planned":false,"acquired":true,"shares":208264,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On October 23, 2024, Amprius, Inc. (\"Amprius Holdings\") voluntarily liquidated and dissolved and distributed to its stockholders on a pro rata basis an aggregate of 57,195,926 shares of the Issuer's common stock (the \"Liquidating Distribution\"). In connection with the Liquidating Distribution, the Issuer assumed Amprius Holdings' outstanding options to purchase shares of Amprius Holdings' Class A common stock (the \"Holdings Options\") granted under the Amprius, Inc. 2008 Stock Plan and the Amprius, Inc. Second Equity Incentive Plan (the \"Option Assumption\"). As a result of the Option Assumption, each Holdings Option held by the Reporting Person became an option to purchase a number of shares of the Issuer's common stock, subject to certain adjustments to the terms of such options to comply with the requirements of U.S. Internal Revenue Code treasury regulation relating to equity grant assumptions."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Received in connection with the Option Assumption in exchange for stock options to acquire 300,000 shares of Amprius Holdings' Class A common stock at an exercise price of $1.69 per share."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The options are fully vested."}],"balance_after":208264,"derivative":{"exercise_price":2.44,"expiration_date":"2029-01-02","underlying":"Common stock","underlying_shares":208264},"source":{"system":"sec-edgar","filing":"0001628280-24-043854","document":"wk-form4_1729895543.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000162828024043854/wk-form4_1729895543.xml","form_type":"4"}},{"id":1381282,"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":"2024-10-25T22:32:29.000Z","date":"2024-10-23","kind":"grant","planned":false,"acquired":true,"shares":208265,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"On October 23, 2024, Amprius, Inc. (\"Amprius Holdings\") voluntarily liquidated and dissolved and distributed to its stockholders on a pro rata basis an aggregate of 57,195,926 shares of the Issuer's common stock (the \"Liquidating Distribution\"). In connection with the Liquidating Distribution, the Issuer assumed Amprius Holdings' outstanding options to purchase shares of Amprius Holdings' Class A common stock (the \"Holdings Options\") granted under the Amprius, Inc. 2008 Stock Plan and the Amprius, Inc. Second Equity Incentive Plan (the \"Option Assumption\"). As a result of the Option Assumption, each Holdings Option held by the Reporting Person became an option to purchase a number of shares of the Issuer's common stock, subject to certain adjustments to the terms of such options to comply with the requirements of U.S. Internal Revenue Code treasury regulation relating to equity grant assumptions."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Received in connection with the Option Assumption in exchange for stock options to acquire 300,000 shares of Amprius Holdings' Class A common stock at an exercise price of $0.43 per share."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The options are fully vested."}],"balance_after":208265,"derivative":{"exercise_price":0.62,"expiration_date":"2027-12-12","underlying":"Common stock","underlying_shares":208265},"source":{"system":"sec-edgar","filing":"0001628280-24-043854","document":"wk-form4_1729895543.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000162828024043854/wk-form4_1729895543.xml","form_type":"4"}},{"id":1425209,"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":"2024-08-22T21:02:08.000Z","date":"2024-08-21","kind":"sale","planned":false,"acquired":false,"shares":33333,"price":1.04,"value":34666.32,"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 $1.03 to $1.0523, 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 1,242,211 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":1350753,"source":{"system":"sec-edgar","filing":"0001628280-24-038252","document":"wk-form4_1724360522.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000162828024038252/wk-form4_1724360522.xml","form_type":"4"}},{"id":1501932,"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":"See Remarks"}}],"security":"Common stock","published_at":"2024-05-25T01:06:51.000Z","date":"2024-05-22","kind":"sale","planned":false,"acquired":false,"shares":15611,"price":1.356,"value":21168.516,"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":"F3","text":"The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $1.31 to $1.3824, 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":"F4","text":"Includes 1,330,941 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":1384086,"source":{"system":"sec-edgar","filing":"0001476220-24-000004","document":"wk-form4_1716599201.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622024000004/wk-form4_1716599201.xml","form_type":"4"}},{"id":1501931,"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":"See Remarks"}}],"security":"Common stock","published_at":"2024-05-25T01:06:51.000Z","date":"2024-05-21","kind":"sale","planned":false,"acquired":false,"shares":19973,"price":1.3276,"value":26516.1548,"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 $1.31 to $1.345, 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."}],"balance_after":1399697,"source":{"system":"sec-edgar","filing":"0001476220-24-000004","document":"wk-form4_1716599201.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000147622024000004/wk-form4_1716599201.xml","form_type":"4"}},{"id":1568474,"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":"See Remarks"}}],"security":"Common stock","published_at":"2024-03-19T23:28:57.000Z","date":"2024-03-19","kind":"grant","planned":false,"acquired":true,"shares":1419670,"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. 1/16th of shares subject to award will vest on May 20, 2024 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 1,419,670 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":1419670,"source":{"system":"sec-edgar","filing":"0001628280-24-011980","document":"wk-form4_1710890923.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000162828024011980/wk-form4_1710890923.xml","form_type":"4"}},{"id":2157286,"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":"See Remarks"}}],"security":"Stock Option (right to buy)","published_at":"2022-09-16T23:23:51.000Z","date":"2022-09-14","kind":"grant","acquired":true,"shares":545962,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On September 14, 2022, the Issuer completed a business combination (the \"Business Combination\") pursuant to the Business Combination Agreement, by and among the Issuer, a wholly owned subsidiary of the Issuer, and Amprius Technologies Operating, Inc. (\"Legacy Amprius\"). At the effective time of the Business Combination (the \"Effective Time\"), each Legacy Amprius option was converted into an option to purchase a number of shares of Common Stock of the Issuer equal to the product (rounded down to the nearest whole number) of (i) the number of shares of Legacy Amprius common stock subject to the Legacy Amprius option immediately prior to the Effective Time multiplied by (ii) an exchange ratio of approximately 1.45590 (the \"Exchange Ratio\"), at an exercise price per share (rounded up to the nearest whole cent) equal to (A) the exercise price per share of such Legacy Amprius option immediately prior to the Effective Time divided by (B) the Exchange Ratio."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"1/48 of the total number of shares issuable upon exercise of the option will vest on February 1, 2023, and 1/48 of the total number of shares issuable upon exercise of the option vest monthly thereafter until fully vested on January 1, 2027."}],"balance_after":545962,"derivative":{"exercise_price":2.61,"expiration_date":"2032-04-13","underlying":"Common Stock","underlying_shares":545962},"source":{"system":"sec-edgar","filing":"0000899243-22-031399","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000089924322031399/doc4.xml","form_type":"4"}},{"id":2157285,"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":"See Remarks"}}],"security":"Stock Option (right to buy)","published_at":"2022-09-16T23:23:51.000Z","date":"2022-09-14","kind":"grant","acquired":true,"shares":727950,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On September 14, 2022, the Issuer completed a business combination (the \"Business Combination\") pursuant to the Business Combination Agreement, by and among the Issuer, a wholly owned subsidiary of the Issuer, and Amprius Technologies Operating, Inc. (\"Legacy Amprius\"). At the effective time of the Business Combination (the \"Effective Time\"), each Legacy Amprius option was converted into an option to purchase a number of shares of Common Stock of the Issuer equal to the product (rounded down to the nearest whole number) of (i) the number of shares of Legacy Amprius common stock subject to the Legacy Amprius option immediately prior to the Effective Time multiplied by (ii) an exchange ratio of approximately 1.45590 (the \"Exchange Ratio\"), at an exercise price per share (rounded up to the nearest whole cent) equal to (A) the exercise price per share of such Legacy Amprius option immediately prior to the Effective Time divided by (B) the Exchange Ratio."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"1/48 of the total number of shares issuable upon exercise of the option vested on February 1, 2022, and 1/48 of the total number of shares issuable upon exercise of the option vest monthly thereafter until fully vested on January 1, 2026."}],"balance_after":727950,"derivative":{"exercise_price":2.61,"expiration_date":"2032-04-13","underlying":"Common Stock","underlying_shares":727950},"source":{"system":"sec-edgar","filing":"0000899243-22-031399","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000089924322031399/doc4.xml","form_type":"4"}},{"id":2157284,"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":"See Remarks"}}],"security":"Stock Option (right to buy)","published_at":"2022-09-16T23:23:51.000Z","date":"2022-09-14","kind":"grant","acquired":true,"shares":1455901,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On September 14, 2022, the Issuer completed a business combination (the \"Business Combination\") pursuant to the Business Combination Agreement, by and among the Issuer, a wholly owned subsidiary of the Issuer, and Amprius Technologies Operating, Inc. (\"Legacy Amprius\"). At the effective time of the Business Combination (the \"Effective Time\"), each Legacy Amprius option was converted into an option to purchase a number of shares of Common Stock of the Issuer equal to the product (rounded down to the nearest whole number) of (i) the number of shares of Legacy Amprius common stock subject to the Legacy Amprius option immediately prior to the Effective Time multiplied by (ii) an exchange ratio of approximately 1.45590 (the \"Exchange Ratio\"), at an exercise price per share (rounded up to the nearest whole cent) equal to (A) the exercise price per share of such Legacy Amprius option immediately prior to the Effective Time divided by (B) the Exchange Ratio."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"1/48 of the total number of shares issuable upon exercise of the option vested on July 17, 2021, and 1/48 of the total number of shares issuable upon exercise of the option vest monthly thereafter until fully vested on June 17, 2025."}],"balance_after":1455901,"derivative":{"exercise_price":1.78,"expiration_date":"2031-06-16","underlying":"Common Stock","underlying_shares":1455901},"source":{"system":"sec-edgar","filing":"0000899243-22-031399","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000089924322031399/doc4.xml","form_type":"4"}},{"id":2157283,"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":"See Remarks"}}],"security":"Stock Option (right to buy)","published_at":"2022-09-16T23:23:51.000Z","date":"2022-09-14","kind":"grant","acquired":true,"shares":727950,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On September 14, 2022, the Issuer completed a business combination (the \"Business Combination\") pursuant to the Business Combination Agreement, by and among the Issuer, a wholly owned subsidiary of the Issuer, and Amprius Technologies Operating, Inc. (\"Legacy Amprius\"). At the effective time of the Business Combination (the \"Effective Time\"), each Legacy Amprius option was converted into an option to purchase a number of shares of Common Stock of the Issuer equal to the product (rounded down to the nearest whole number) of (i) the number of shares of Legacy Amprius common stock subject to the Legacy Amprius option immediately prior to the Effective Time multiplied by (ii) an exchange ratio of approximately 1.45590 (the \"Exchange Ratio\"), at an exercise price per share (rounded up to the nearest whole cent) equal to (A) the exercise price per share of such Legacy Amprius option immediately prior to the Effective Time divided by (B) the Exchange Ratio."}],"balance_after":727950,"derivative":{"exercise_price":0.05,"exercise_date":"2022-09-14","expiration_date":"2024-03-15","underlying":"Common Stock","underlying_shares":727950},"source":{"system":"sec-edgar","filing":"0000899243-22-031399","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1476220/000089924322031399/doc4.xml","form_type":"4"}}]}