{"transactions":[{"id":676266,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2026-08-25T21:22:08.000Z","date":"2026-08-21","kind":"sale","planned":false,"acquired":false,"shares":29681,"price":10.341,"value":306931.221,"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 525,176 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":771629,"source":{"system":"sec-edgar","filing":"0001940928-26-000024","document":"wk-form4_1787692925.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000024/wk-form4_1787692925.xml","form_type":"4"}},{"id":760408,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2026-05-28T22:12:28.000Z","date":"2026-05-27","kind":"sale","planned":false,"acquired":false,"shares":3208,"price":17.1935,"value":55156.748,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $17.13 to $17.3, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 584,308 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":801310,"source":{"system":"sec-edgar","filing":"0001940928-26-000020","document":"wk-form4_1780006345.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000020/wk-form4_1780006345.xml","form_type":"4"}},{"id":764056,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2026-05-26T23:10:26.000Z","date":"2026-05-21","kind":"sale","planned":false,"acquired":false,"shares":28812,"price":14.7884,"value":426083.3808,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"This transaction was effected pursuant to non-discretionary, sell-to-cover arrangements mandated by the issuer to fund tax withholding obligations in connection with the vesting of restricted stock units."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $14.54 to $15.08, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth above."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"Includes 591,183 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":804518,"source":{"system":"sec-edgar","filing":"0001940928-26-000016","document":"wk-form4_1779837023.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000016/wk-form4_1779837023.xml","form_type":"4"}},{"id":856157,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2026-03-06T22:46:18.000Z","date":"2026-03-04","kind":"grant","planned":false,"acquired":true,"shares":110000,"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, 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, 2030."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 643,440 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":833330,"source":{"system":"sec-edgar","filing":"0001940928-26-000012","document":"wk-form4_1772837175.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000012/wk-form4_1772837175.xml","form_type":"4"}},{"id":885342,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2026-02-24T22:08:56.000Z","date":"2026-02-23","kind":"sale","planned":false,"acquired":false,"shares":25366,"price":10.1555,"value":257604.413,"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 533,440 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":723330,"source":{"system":"sec-edgar","filing":"0001940928-26-000009","document":"wk-form4_1771970932.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000009/wk-form4_1771970932.xml","form_type":"4"}},{"id":927159,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Stock Option (right to buy)","published_at":"2026-01-30T23:02:40.000Z","date":"2026-01-28","kind":"exercise","planned":false,"acquired":false,"shares":39600,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025."}],"balance_after":0,"derivative":{"exercise_price":0.05,"exercise_date":"2022-09-14","expiration_date":"2027-03-15","underlying":"Common stock","underlying_shares":39600},"source":{"system":"sec-edgar","filing":"0001940928-26-000004","document":"wk-form4_1769814158.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000004/wk-form4_1769814158.xml","form_type":"4"}},{"id":927158,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Stock Option (right to buy)","published_at":"2026-01-30T23:02:40.000Z","date":"2026-01-28","kind":"exercise","planned":false,"acquired":false,"shares":90,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025."}],"balance_after":0,"derivative":{"exercise_price":0.62,"exercise_date":"2024-10-23","expiration_date":"2027-03-15","underlying":"Common stock","underlying_shares":90},"source":{"system":"sec-edgar","filing":"0001940928-26-000004","document":"wk-form4_1769814158.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000004/wk-form4_1769814158.xml","form_type":"4"}},{"id":927157,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2026-01-30T23:02:40.000Z","date":"2026-01-28","kind":"sale","planned":false,"acquired":false,"shares":39690,"price":12.0018,"value":476351.442,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.02, 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":"F2","text":"Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":748696,"source":{"system":"sec-edgar","filing":"0001940928-26-000004","document":"wk-form4_1769814158.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000004/wk-form4_1769814158.xml","form_type":"4"}},{"id":927156,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2026-01-30T23:02:40.000Z","date":"2026-01-28","kind":"exercise","planned":false,"acquired":true,"shares":39600,"price":0.05,"value":1980.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":788386,"source":{"system":"sec-edgar","filing":"0001940928-26-000004","document":"wk-form4_1769814158.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000004/wk-form4_1769814158.xml","form_type":"4"}},{"id":927155,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2026-01-30T23:02:40.000Z","date":"2026-01-28","kind":"exercise","planned":false,"acquired":true,"shares":90,"price":0.62,"value":55.8,"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 September 11, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":748786,"source":{"system":"sec-edgar","filing":"0001940928-26-000004","document":"wk-form4_1769814158.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000004/wk-form4_1769814158.xml","form_type":"4"}},{"id":932498,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Stock Option (right to buy)","published_at":"2026-01-23T22:36:48.000Z","date":"2026-01-23","kind":"exercise","planned":false,"acquired":false,"shares":1600,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025."}],"balance_after":39600,"derivative":{"exercise_price":0.05,"exercise_date":"2022-09-14","expiration_date":"2027-03-15","underlying":"Common stock","underlying_shares":1600},"source":{"system":"sec-edgar","filing":"0001940928-26-000002","document":"wk-form4_1769207803.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":17,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000002/wk-form4_1769207803.xml","form_type":"4"}},{"id":932497,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Stock Option (right to buy)","published_at":"2026-01-23T22:36:48.000Z","date":"2026-01-22","kind":"exercise","planned":false,"acquired":false,"shares":166104,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025."}],"balance_after":0,"derivative":{"exercise_price":0.05,"exercise_date":"2022-09-14","expiration_date":"2027-07-11","underlying":"Common stock","underlying_shares":166104},"source":{"system":"sec-edgar","filing":"0001940928-26-000002","document":"wk-form4_1769207803.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":16,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000002/wk-form4_1769207803.xml","form_type":"4"}},{"id":932496,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Stock Option (right to buy)","published_at":"2026-01-23T22:36:48.000Z","date":"2026-01-22","kind":"exercise","planned":false,"acquired":false,"shares":72795,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025."}],"balance_after":0,"derivative":{"exercise_price":0.45,"exercise_date":"2022-09-14","expiration_date":"2028-03-19","underlying":"Common stock","underlying_shares":72795},"source":{"system":"sec-edgar","filing":"0001940928-26-000002","document":"wk-form4_1769207803.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":15,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000002/wk-form4_1769207803.xml","form_type":"4"}},{"id":932495,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Stock Option (right to buy)","published_at":"2026-01-23T22:36:48.000Z","date":"2026-01-22","kind":"exercise","planned":false,"acquired":false,"shares":253928,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025."}],"balance_after":41200,"derivative":{"exercise_price":0.05,"exercise_date":"2022-09-14","expiration_date":"2027-03-15","underlying":"Common stock","underlying_shares":253928},"source":{"system":"sec-edgar","filing":"0001940928-26-000002","document":"wk-form4_1769207803.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":14,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000002/wk-form4_1769207803.xml","form_type":"4"}},{"id":932494,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Stock Option (right to buy)","published_at":"2026-01-23T22:36:48.000Z","date":"2026-01-21","kind":"exercise","planned":false,"acquired":false,"shares":15883,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025."}],"balance_after":166104,"derivative":{"exercise_price":0.05,"exercise_date":"2022-09-14","expiration_date":"2027-07-11","underlying":"Common stock","underlying_shares":15883},"source":{"system":"sec-edgar","filing":"0001940928-26-000002","document":"wk-form4_1769207803.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":13,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000002/wk-form4_1769207803.xml","form_type":"4"}},{"id":932493,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Stock Option (right to buy)","published_at":"2026-01-23T22:36:48.000Z","date":"2026-01-21","kind":"exercise","planned":false,"acquired":false,"shares":15834,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025."}],"balance_after":295128,"derivative":{"exercise_price":0.05,"exercise_date":"2022-09-14","expiration_date":"2027-03-15","underlying":"Common stock","underlying_shares":15834},"source":{"system":"sec-edgar","filing":"0001940928-26-000002","document":"wk-form4_1769207803.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000002/wk-form4_1769207803.xml","form_type":"4"}},{"id":932492,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Stock Option (right to buy)","published_at":"2026-01-23T22:36:48.000Z","date":"2026-01-21","kind":"exercise","planned":false,"acquired":false,"shares":41563,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025."}],"balance_after":90,"derivative":{"exercise_price":0.62,"exercise_date":"2024-10-23","expiration_date":"2027-03-15","underlying":"Common stock","underlying_shares":41563},"source":{"system":"sec-edgar","filing":"0001940928-26-000002","document":"wk-form4_1769207803.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000002/wk-form4_1769207803.xml","form_type":"4"}},{"id":932491,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2026-01-23T22:36:48.000Z","date":"2026-01-23","kind":"sale","planned":false,"acquired":false,"shares":1600,"price":12,"value":19200.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"These shares were sold at $12.00. 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 shares sold."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":748696,"source":{"system":"sec-edgar","filing":"0001940928-26-000002","document":"wk-form4_1769207803.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000002/wk-form4_1769207803.xml","form_type":"4"}},{"id":932490,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2026-01-23T22:36:48.000Z","date":"2026-01-23","kind":"exercise","planned":false,"acquired":true,"shares":1600,"price":0.05,"value":80.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":750296,"source":{"system":"sec-edgar","filing":"0001940928-26-000002","document":"wk-form4_1769207803.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000002/wk-form4_1769207803.xml","form_type":"4"}},{"id":932489,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2026-01-23T22:36:48.000Z","date":"2026-01-22","kind":"sale","planned":false,"acquired":false,"shares":492827,"price":12.0365,"value":5931912.1855,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.135, 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 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":748696,"source":{"system":"sec-edgar","filing":"0001940928-26-000002","document":"wk-form4_1769207803.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000002/wk-form4_1769207803.xml","form_type":"4"}},{"id":932488,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2026-01-23T22:36:48.000Z","date":"2026-01-22","kind":"exercise","planned":false,"acquired":true,"shares":166104,"price":0.05,"value":8305.2,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":1241523,"source":{"system":"sec-edgar","filing":"0001940928-26-000002","document":"wk-form4_1769207803.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000002/wk-form4_1769207803.xml","form_type":"4"}},{"id":932487,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2026-01-23T22:36:48.000Z","date":"2026-01-22","kind":"exercise","planned":false,"acquired":true,"shares":72795,"price":0.45,"value":32757.75,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":1075419,"source":{"system":"sec-edgar","filing":"0001940928-26-000002","document":"wk-form4_1769207803.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000002/wk-form4_1769207803.xml","form_type":"4"}},{"id":932486,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2026-01-23T22:36:48.000Z","date":"2026-01-22","kind":"exercise","planned":false,"acquired":true,"shares":253928,"price":0.05,"value":12696.4,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":1002624,"source":{"system":"sec-edgar","filing":"0001940928-26-000002","document":"wk-form4_1769207803.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000002/wk-form4_1769207803.xml","form_type":"4"}},{"id":932485,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2026-01-23T22:36:48.000Z","date":"2026-01-21","kind":"sale","planned":false,"acquired":false,"shares":73280,"price":12.0007,"value":879411.296,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $12.00 to $12.01, 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 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":748696,"source":{"system":"sec-edgar","filing":"0001940928-26-000002","document":"wk-form4_1769207803.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000002/wk-form4_1769207803.xml","form_type":"4"}},{"id":932484,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2026-01-23T22:36:48.000Z","date":"2026-01-21","kind":"exercise","planned":false,"acquired":true,"shares":15883,"price":0.05,"value":794.15,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":821976,"source":{"system":"sec-edgar","filing":"0001940928-26-000002","document":"wk-form4_1769207803.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000002/wk-form4_1769207803.xml","form_type":"4"}},{"id":932483,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2026-01-23T22:36:48.000Z","date":"2026-01-21","kind":"exercise","planned":false,"acquired":true,"shares":15834,"price":0.05,"value":791.7,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":806093,"source":{"system":"sec-edgar","filing":"0001940928-26-000002","document":"wk-form4_1769207803.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000002/wk-form4_1769207803.xml","form_type":"4"}},{"id":932482,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2026-01-23T22:36:48.000Z","date":"2026-01-21","kind":"exercise","planned":false,"acquired":true,"shares":41563,"price":0.62,"value":25769.06,"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 September 11, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":790259,"source":{"system":"sec-edgar","filing":"0001940928-26-000002","document":"wk-form4_1769207803.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092826000002/wk-form4_1769207803.xml","form_type":"4"}},{"id":969704,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Stock Option (right to buy)","published_at":"2025-12-15T23:25:33.000Z","date":"2025-12-11","kind":"exercise","planned":false,"acquired":false,"shares":125000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025."}],"balance_after":310962,"derivative":{"exercise_price":0.05,"exercise_date":"2022-09-14","expiration_date":"2027-03-15","underlying":"Common stock","underlying_shares":125000},"source":{"system":"sec-edgar","filing":"0001940928-25-000020","document":"wk-form4_1765841130.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092825000020/wk-form4_1765841130.xml","form_type":"4"}},{"id":969703,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2025-12-15T23:25:33.000Z","date":"2025-12-11","kind":"sale","planned":false,"acquired":false,"shares":198255,"price":10.5086,"value":2083382.493,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $10.14 to $11.49, 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 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":748696,"source":{"system":"sec-edgar","filing":"0001940928-25-000020","document":"wk-form4_1765841130.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092825000020/wk-form4_1765841130.xml","form_type":"4"}},{"id":969702,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2025-12-15T23:25:33.000Z","date":"2025-12-11","kind":"exercise","planned":false,"acquired":true,"shares":125000,"price":0.05,"value":6250.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The exercises and sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 11, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":946951,"source":{"system":"sec-edgar","filing":"0001940928-25-000020","document":"wk-form4_1765841130.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092825000020/wk-form4_1765841130.xml","form_type":"4"}},{"id":988874,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2025-11-25T23:55:33.000Z","date":"2025-11-21","kind":"sale","planned":false,"acquired":false,"shares":25024,"price":10.0813,"value":252274.4512,"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 585,697 restricted stock units, each of which represents a contingent right to receive one share of the issuer's common stock, subject to the applicable vesting schedule and conditions of each restricted stock unit."}],"balance_after":821951,"source":{"system":"sec-edgar","filing":"0001940928-25-000018","document":"wk-form4_1764114929.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092825000018/wk-form4_1764114929.xml","form_type":"4"}},{"id":1056925,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2025-08-26T00:04:02.000Z","date":"2025-08-21","kind":"sale","planned":false,"acquired":false,"shares":19159,"price":6.8162,"value":130591.5758,"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 637,953 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":846975,"source":{"system":"sec-edgar","filing":"0001940928-25-000014","document":"wk-form4_1756166640.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092825000014/wk-form4_1756166640.xml","form_type":"4"}},{"id":1135604,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2025-05-23T21:54:35.000Z","date":"2025-05-21","kind":"sale","planned":false,"acquired":false,"shares":20366,"price":2.432,"value":49530.112,"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 690,211 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":866134,"source":{"system":"sec-edgar","filing":"0001940928-25-000009","document":"wk-form4_1748037269.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092825000009/wk-form4_1748037269.xml","form_type":"4"}},{"id":1194806,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2025-03-21T20:55:14.000Z","date":"2025-03-19","kind":"grant","planned":false,"acquired":true,"shares":461540,"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 742,467 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":886500,"source":{"system":"sec-edgar","filing":"0001940928-25-000004","document":"wk-form4_1742590507.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092825000004/wk-form4_1742590507.xml","form_type":"4"}},{"id":1200501,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Stock Option (right to buy)","published_at":"2025-03-18T21:07:40.000Z","date":"2025-03-14","kind":"exercise","planned":false,"acquired":false,"shares":3471,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":0,"derivative":{"exercise_price":0.98,"exercise_date":"2016-01-01","expiration_date":"2025-03-17","underlying":"Common stock","underlying_shares":3471},"source":{"system":"sec-edgar","filing":"0001940928-25-000003","document":"wk-form4_1742332052.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092825000003/wk-form4_1742332052.xml","form_type":"4"}},{"id":1200500,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2025-03-18T21:07:40.000Z","date":"2025-03-14","kind":"exercise","planned":false,"acquired":true,"shares":3471,"price":0.98,"value":3401.58,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes 280,927 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":424960,"source":{"system":"sec-edgar","filing":"0001940928-25-000003","document":"wk-form4_1742332052.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092825000003/wk-form4_1742332052.xml","form_type":"4"}},{"id":1249955,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2025-02-25T00:38:45.000Z","date":"2025-02-21","kind":"sale","planned":false,"acquired":false,"shares":9066,"price":3.1332,"value":28405.5912,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","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 280,927 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":421489,"source":{"system":"sec-edgar","filing":"0001940928-25-000002","document":"wk-form4_1740443919.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092825000002/wk-form4_1740443919.xml","form_type":"4"}},{"id":1354671,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2024-11-22T21:21:28.000Z","date":"2024-11-21","kind":"sale","planned":false,"acquired":false,"shares":8575,"price":1.9646,"value":16846.445,"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 304,338 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":430555,"source":{"system":"sec-edgar","filing":"0001940928-24-000009","document":"wk-form4_1732310477.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092824000009/wk-form4_1732310477.xml","form_type":"4"}},{"id":1381470,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Stock Option (right to buy)","published_at":"2024-10-25T22:33:49.000Z","date":"2024-10-23","kind":"grant","planned":false,"acquired":true,"shares":139613,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"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 201,110 shares of Amprius Holdings' Class A common stock at an exercise price of $2.55 per share."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The options are fully vested."}],"balance_after":139613,"derivative":{"exercise_price":3.68,"expiration_date":"2031-12-15","underlying":"Common stock","underlying_shares":139613},"source":{"system":"sec-edgar","filing":"0001628280-24-043856","document":"wk-form4_1729895624.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000162828024043856/wk-form4_1729895624.xml","form_type":"4"}},{"id":1381469,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Stock Option (right to buy)","published_at":"2024-10-25T22:33:49.000Z","date":"2024-10-23","kind":"grant","planned":false,"acquired":true,"shares":41653,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"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 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":"F4","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":"0001628280-24-043856","document":"wk-form4_1729895624.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000162828024043856/wk-form4_1729895624.xml","form_type":"4"}},{"id":1381468,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Stock Option (right to buy)","published_at":"2024-10-25T22:33:49.000Z","date":"2024-10-23","kind":"grant","planned":false,"acquired":true,"shares":3471,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"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 5,000 shares of Amprius Holdings' Class A common stock at an exercise price of $0.68 per share."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The options are fully vested."}],"balance_after":3471,"derivative":{"exercise_price":0.98,"expiration_date":"2025-03-17","underlying":"Common stock","underlying_shares":3471},"source":{"system":"sec-edgar","filing":"0001628280-24-043856","document":"wk-form4_1729895624.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000162828024043856/wk-form4_1729895624.xml","form_type":"4"}},{"id":1425659,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2024-08-22T20:57:41.000Z","date":"2024-08-21","kind":"sale","planned":false,"acquired":false,"shares":8800,"price":1.04,"value":9152.0,"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 327,749 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":386168,"source":{"system":"sec-edgar","filing":"0001628280-24-038250","document":"wk-form4_1724360255.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000162828024038250/wk-form4_1724360255.xml","form_type":"4"}},{"id":1502245,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2024-05-25T01:08:19.000Z","date":"2024-05-22","kind":"sale","planned":false,"acquired":false,"shares":4121,"price":1.356,"value":5588.076,"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 351,159 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":394968,"source":{"system":"sec-edgar","filing":"0001940928-24-000003","document":"wk-form4_1716599288.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092824000003/wk-form4_1716599288.xml","form_type":"4"}},{"id":1502244,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2024-05-25T01:08:19.000Z","date":"2024-05-21","kind":"sale","planned":false,"acquired":false,"shares":5272,"price":1.3276,"value":6999.1072,"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":399089,"source":{"system":"sec-edgar","filing":"0001940928-24-000003","document":"wk-form4_1716599288.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092824000003/wk-form4_1716599288.xml","form_type":"4"}},{"id":1569596,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2024-03-19T23:33:32.000Z","date":"2024-03-19","kind":"grant","planned":false,"acquired":true,"shares":374570,"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 374,570 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":404361,"source":{"system":"sec-edgar","filing":"0001628280-24-011987","document":"wk-form4_1710891188.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000162828024011987/wk-form4_1710891188.xml","form_type":"4"}},{"id":1779168,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2023-09-18T21:40:15.000Z","date":"2023-09-15","kind":"sale","planned":false,"acquired":false,"shares":33630,"price":3.8872,"value":130726.536,"ownership":{"direct":true},"footnotes":[{"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 $3.85 to $3.96, 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":29791,"source":{"system":"sec-edgar","filing":"0001940928-23-000011","document":"wf-form4_169507320058205.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092823000011/wf-form4_169507320058205.xml","form_type":"4"}},{"id":1779167,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2023-09-18T21:40:15.000Z","date":"2023-09-14","kind":"sale","planned":false,"acquired":false,"shares":46370,"price":3.6552,"value":169491.624,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is an average execution price. These shares were sold in multiple transactions at prices ranging from $3.65 to $3.70, 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":63421,"source":{"system":"sec-edgar","filing":"0001940928-23-000011","document":"wf-form4_169507320058205.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092823000011/wf-form4_169507320058205.xml","form_type":"4"}},{"id":1783151,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Stock Option (right to buy)","published_at":"2023-09-12T20:43:35.000Z","date":"2023-09-09","kind":"exercise","planned":false,"acquired":false,"shares":80000,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":435962,"derivative":{"exercise_price":0.05,"exercise_date":"2022-09-14","expiration_date":"2024-03-15","underlying":"Common stock","underlying_shares":80000},"source":{"system":"sec-edgar","filing":"0001940928-23-000008","document":"wf-form4_169455140238278.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092823000008/wf-form4_169455140238278.xml","form_type":"4"}},{"id":1783150,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2023-09-12T20:43:35.000Z","date":"2023-09-09","kind":"exercise","planned":false,"acquired":true,"shares":80000,"price":0.05,"value":4000.0,"ownership":{"direct":true},"balance_after":109791,"source":{"system":"sec-edgar","filing":"0001940928-23-000008","document":"wf-form4_169455140238278.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092823000008/wf-form4_169455140238278.xml","form_type":"4"}},{"id":1906440,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2023-05-03T21:30:42.000Z","date":"2022-12-14","kind":"tax_withholding","planned":false,"acquired":false,"shares":209,"price":7.2,"value":1504.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The reporting person received 29,791 shares of common stock on net exercise of option to purchase 30,000 shares of common stock. The issuer withheld 209 shares of common stock underlying the option for payment of the exercise price, using the closing stock price on December 14, 2022, pursuant to the terms of the issuer's 2022 Equity Incentive Plan."}],"balance_after":29791,"source":{"system":"sec-edgar","filing":"0001940928-23-000002","document":"wf-form4_168314942961241.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092823000002/wf-form4_168314942961241.xml","form_type":"4"}},{"id":2085336,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Stock Option (right to buy)","published_at":"2022-12-15T23:40:44.000Z","date":"2022-12-14","kind":"exercise","acquired":false,"shares":30000,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":515962,"derivative":{"exercise_price":0.05,"exercise_date":"2022-09-14","expiration_date":"2024-03-15","underlying":"Common stock","underlying_shares":30000},"source":{"system":"sec-edgar","filing":"0001940928-22-000002","document":"wf-form4_167114761444644.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092822000002/wf-form4_167114761444644.xml","form_type":"4"}},{"id":2085335,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Common stock","published_at":"2022-12-15T23:40:44.000Z","date":"2022-12-14","kind":"exercise","acquired":true,"shares":30000,"price":0.05,"value":1500.0,"ownership":{"direct":true},"balance_after":30000,"source":{"system":"sec-edgar","filing":"0001940928-22-000002","document":"wf-form4_167114761444644.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000194092822000002/wf-form4_167114761444644.xml","form_type":"4"}},{"id":2157579,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Stock Option (right to buy)","published_at":"2022-09-16T23:24:11.000Z","date":"2022-09-14","kind":"grant","acquired":true,"shares":218385,"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, 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, 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":218385,"derivative":{"exercise_price":2.61,"expiration_date":"2032-04-13","underlying":"Common Stock","underlying_shares":218385},"source":{"system":"sec-edgar","filing":"0000899243-22-031400","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000089924322031400/doc4.xml","form_type":"4"}},{"id":2157578,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Stock Option (right to buy)","published_at":"2022-09-16T23:24:11.000Z","date":"2022-09-14","kind":"grant","acquired":true,"shares":72795,"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, 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":72795,"derivative":{"exercise_price":1.78,"expiration_date":"2031-06-16","underlying":"Common Stock","underlying_shares":72795},"source":{"system":"sec-edgar","filing":"0000899243-22-031400","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000089924322031400/doc4.xml","form_type":"4"}},{"id":2157577,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Stock Option (right to buy)","published_at":"2022-09-16T23:24:11.000Z","date":"2022-09-14","kind":"grant","acquired":true,"shares":72795,"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, 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":72795,"derivative":{"exercise_price":0.45,"exercise_date":"2022-09-14","expiration_date":"2028-03-19","underlying":"Common Stock","underlying_shares":72795},"source":{"system":"sec-edgar","filing":"0000899243-22-031400","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000089924322031400/doc4.xml","form_type":"4"}},{"id":2157576,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Stock Option (right to buy)","published_at":"2022-09-16T23:24:11.000Z","date":"2022-09-14","kind":"grant","acquired":true,"shares":181987,"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, 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":181987,"derivative":{"exercise_price":0.05,"exercise_date":"2022-09-14","expiration_date":"2027-07-11","underlying":"Common Stock","underlying_shares":181987},"source":{"system":"sec-edgar","filing":"0000899243-22-031400","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000089924322031400/doc4.xml","form_type":"4"}},{"id":2157575,"issuer":{"id":4742,"kind":"organization","name":"Amprius Technologies, Inc."},"owners":[{"id":19962,"kind":"person","name":"Stefan Constantin Ionel","position":1,"cik":"0001940928","reported_name":"Stefan Constantin Ionel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Technology Officer"}}],"security":"Stock Option (right to buy)","published_at":"2022-09-16T23:24:11.000Z","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, 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":545962,"derivative":{"exercise_price":0.05,"exercise_date":"2022-09-14","expiration_date":"2024-03-15","underlying":"Common Stock","underlying_shares":545962},"source":{"system":"sec-edgar","filing":"0000899243-22-031400","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1940928/000089924322031400/doc4.xml","form_type":"4"}}]}