{"transactions":[{"id":758488,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":43123,"kind":"person","name":"Wilcox Jon R","position":1,"cik":"0002105535","reported_name":"Wilcox Jon R","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-05-29T23:04:43.000Z","date":"2026-05-28","kind":"grant","planned":false,"acquired":true,"shares":5513,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents a contingent right to receive one share of Mechanics Bancorp (the \"Company\") Class A common stock.  RSUs do not require the holder to pay any consideration on vesting."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"On May 28, 2026, the Reporting Person was granted 5,513 RSUs, which vest on May 28, 2027.  Upon vesting, the Reporting Person will receive a number of shares of the Company's Class A common stock equal to the number of RSU's that vest on that date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"On May 28, 2026, the Reporting Person was granted 5,513 RSUs, which vest on May 28, 2027.  Upon vesting, the Reporting Person will receive a number of shares of the Company's Class A common stock equal to the number of RSU's that vest on that date."}],"balance_after":5513,"derivative":{"underlying":"Class A Common Stock","underlying_shares":5513},"source":{"system":"sec-edgar","filing":"0002105535-26-000006","document":"wk-form4_1780095881.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210553526000006/wk-form4_1780095881.xml","form_type":"4"}},{"id":758487,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":43123,"kind":"person","name":"Wilcox Jon R","position":1,"cik":"0002105535","reported_name":"Wilcox Jon R","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-05-29T23:04:43.000Z","date":"2026-05-27","kind":"exercise","planned":false,"acquired":false,"shares":3301,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents a contingent right to receive one share of Mechanics Bancorp (the \"Company\") Class A common stock.  RSUs do not require the holder to pay any consideration on vesting."},{"field":"shares","element":"transactionShares","label":"F2","text":"Granted but unvested RSUs were previously reported in Table I.  Going forward, granted but unvested RSUs will be reported in Table II and will be reported in Table I when they vest and convert into Class A common stock.  Share totals of securities beneficially owned following reported transaction(s) reported in Table I have been adjusted to reflect this change in reporting and do not include unvested RSUs."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"On May 21, 2025, the Reporting Person was granted the equivalent of 3,301 of the Company's RSUs, which vest on May 27, 2026.  Upon vesting, the Reporting Person will receive a number of shares of the Company's Class A common stock equal to the number of RSU's that vest on that date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"On May 21, 2025, the Reporting Person was granted the equivalent of 3,301 of the Company's RSUs, which vest on May 27, 2026.  Upon vesting, the Reporting Person will receive a number of shares of the Company's Class A common stock equal to the number of RSU's that vest on that date."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":3301},"source":{"system":"sec-edgar","filing":"0002105535-26-000006","document":"wk-form4_1780095881.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210553526000006/wk-form4_1780095881.xml","form_type":"4"}},{"id":758486,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":43123,"kind":"person","name":"Wilcox Jon R","position":1,"cik":"0002105535","reported_name":"Wilcox Jon R","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-05-29T23:04:43.000Z","date":"2026-05-27","kind":"exercise","planned":false,"acquired":true,"shares":3301,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each Restricted Stock Unit (\"RSU\") represents a contingent right to receive one share of Mechanics Bancorp (the \"Company\") Class A common stock.  RSUs do not require the holder to pay any consideration on vesting."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Granted but unvested RSUs were previously reported in Table I.  Going forward, granted but unvested RSUs will be reported in Table II and will be reported in Table I when they vest and convert into Class A common stock.  Share totals of securities beneficially owned following reported transaction(s) reported in Table I have been adjusted to reflect this change in reporting and do not include unvested RSUs."}],"balance_after":13204,"source":{"system":"sec-edgar","filing":"0002105535-26-000006","document":"wk-form4_1780095881.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210553526000006/wk-form4_1780095881.xml","form_type":"4"}},{"id":921223,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":43123,"kind":"person","name":"Wilcox Jon R","position":1,"cik":"0002105535","reported_name":"Wilcox Jon R","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Incentive Units - Deferred","published_at":"2026-02-03T22:54:01.000Z","date":"2025-09-02","kind":"grant","planned":false,"acquired":true,"shares":2554,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"As consideration for the Merger, (i) each share of MB voting common stock converted into the right to receive 3,301.0920 shares of Issuer Class A Common Stock, which, on the effective date of the Merger, had a closing price of $13.87 per share, (ii) each MB restricted stock unit of the Reporting Person converted into restricted stock units of Issuer for the right to receive 3,301.0920 shares of Issuer Class A Common Stock, and (iii) each MB incentive unit of the Reporting Person converted into incentive units of Issuer of the economic equivalent of 3,301.0920 shares of Issuer Class A Common Stock."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each incentive unit is the economic equivalent of one share of Issuer Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The Reporting Person has elected to defer payment on such incentive units until the earlier of (i) the retirement or termination of the Reporting Person, or (ii) a change in control of Issuer."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The Reporting Person has elected to defer payment on such incentive units until the earlier of (i) the retirement or termination of the Reporting Person, or (ii) a change in control of Issuer."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"Includes 37 incentive units acquired on December 15, 2025 pursuant to dividend reinvestment."}],"balance_after":2591,"derivative":{"underlying":"Class A Common Stock","underlying_shares":2554},"source":{"system":"sec-edgar","filing":"0002105535-26-000004","document":"wk-form4_1770159239.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210553526000004/wk-form4_1770159239.xml","form_type":"4"}},{"id":921222,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":43123,"kind":"person","name":"Wilcox Jon R","position":1,"cik":"0002105535","reported_name":"Wilcox Jon R","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-02-03T22:54:01.000Z","date":"2025-09-02","kind":"grant","planned":false,"acquired":true,"shares":13204,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Received in exchange for an aggregate of four shares of Mechanics Bank (\"MB\") original voting common stock and MB restricted stock units in connection with the merger of HomeStreet Bank, a wholly owned subsidiary of Issuer, with and into MB, pursuant to which MB continued as the surviving corporation and as a wholly owned subsidiary of Issuer (the \"Merger\")."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"As consideration for the Merger, (i) each share of MB voting common stock converted into the right to receive 3,301.0920 shares of Issuer Class A Common Stock, which, on the effective date of the Merger, had a closing price of $13.87 per share, (ii) each MB restricted stock unit of the Reporting Person converted into restricted stock units of Issuer for the right to receive 3,301.0920 shares of Issuer Class A Common Stock, and (iii) each MB incentive unit of the Reporting Person converted into incentive units of Issuer of the economic equivalent of 3,301.0920 shares of Issuer Class A Common Stock."}],"balance_after":13204,"source":{"system":"sec-edgar","filing":"0002105535-26-000004","document":"wk-form4_1770159239.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210553526000004/wk-form4_1770159239.xml","form_type":"4"}}]}