{"transactions":[{"id":733523,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":37154,"kind":"person","name":"Downer Edward Michael","position":1,"cik":"0002104239","reported_name":"Downer Edward Michael","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-06-17T22:41:57.000Z","date":"2026-06-15","kind":"sale","planned":false,"acquired":false,"shares":2,"price":15.13,"value":30.26,"ownership":{"direct":false,"nature":"E M Downer Dynasty Trust UAD 11/28/03 FBO Michael Downer"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"The Reporting Person is the Investment Manager and beneficiary of the E M Downer Dynasty Trust UAD 11/28/03."}],"balance_after":1121268,"source":{"system":"sec-edgar","filing":"0002104239-26-000008","document":"wk-form4_1781736114.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210423926000008/wk-form4_1781736114.xml","form_type":"4"}},{"id":758489,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":43124,"kind":"person","name":"Pellegrino Nancy D","position":1,"cik":"0001792763","reported_name":"Pellegrino Nancy D","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-05-29T23:10:09.000Z","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":"F2","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":"F3","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":"F3","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":"0001792763-26-000003","document":"wk-form4_1780096206.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000179276326000003/wk-form4_1780096206.xml","form_type":"4"}},{"id":758689,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":28778,"kind":"person","name":"Russell Kenneth D","position":1,"cik":"0001498530","reported_name":"Russell Kenneth D","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-05-29T23:09:22.000Z","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":"F2","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":"F2","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":"0001498530-26-000002","document":"wk-form4_1780096159.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1498530/000149853026000002/wk-form4_1780096159.xml","form_type":"4"}},{"id":758485,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":43122,"kind":"person","name":"Cochran Patricia","position":1,"cik":"0002104575","reported_name":"Cochran Patricia","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-05-29T23:08:41.000Z","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":"0002104575-26-000005","document":"wk-form4_1780096118.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210457526000005/wk-form4_1780096118.xml","form_type":"4"}},{"id":758484,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":43122,"kind":"person","name":"Cochran Patricia","position":1,"cik":"0002104575","reported_name":"Cochran Patricia","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-05-29T23:08:41.000Z","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":"0002104575-26-000005","document":"wk-form4_1780096118.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210457526000005/wk-form4_1780096118.xml","form_type":"4"}},{"id":758483,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":43122,"kind":"person","name":"Cochran Patricia","position":1,"cik":"0002104575","reported_name":"Cochran Patricia","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-05-29T23:08:41.000Z","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":"0002104575-26-000005","document":"wk-form4_1780096118.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210457526000005/wk-form4_1780096118.xml","form_type":"4"}},{"id":758482,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":43121,"kind":"person","name":"Downer Douglas E","position":1,"cik":"0002104981","reported_name":"Downer Douglas E","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-05-29T23:07:18.000Z","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":"F5","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":"F5","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":"0002104981-26-000005","document":"wk-form4_1780096036.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210498126000005/wk-form4_1780096036.xml","form_type":"4"}},{"id":758481,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":43121,"kind":"person","name":"Downer Douglas E","position":1,"cik":"0002104981","reported_name":"Downer Douglas E","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-05-29T23:07:18.000Z","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":"F4","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":"F4","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":"0002104981-26-000005","document":"wk-form4_1780096036.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210498126000005/wk-form4_1780096036.xml","form_type":"4"}},{"id":758480,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":43121,"kind":"person","name":"Downer Douglas E","position":1,"cik":"0002104981","reported_name":"Downer Douglas E","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-05-29T23:07:18.000Z","date":"2026-05-27","kind":"exercise","planned":false,"acquired":true,"shares":3301,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Douglas E Downer Revocable Trust"},"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":2317764,"source":{"system":"sec-edgar","filing":"0002104981-26-000005","document":"wk-form4_1780096036.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210498126000005/wk-form4_1780096036.xml","form_type":"4"}},{"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":758476,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":43120,"kind":"person","name":"Crowe Adrienne Y","position":1,"cik":"0002103504","reported_name":"Crowe Adrienne Y","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-05-29T23:00:16.000Z","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":"0002103504-26-000005","document":"wk-form4_1780095613.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210350426000005/wk-form4_1780095613.xml","form_type":"4"}},{"id":758475,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":43120,"kind":"person","name":"Crowe Adrienne Y","position":1,"cik":"0002103504","reported_name":"Crowe Adrienne Y","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-05-29T23:00:16.000Z","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":"0002103504-26-000005","document":"wk-form4_1780095613.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210350426000005/wk-form4_1780095613.xml","form_type":"4"}},{"id":758474,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":43120,"kind":"person","name":"Crowe Adrienne Y","position":1,"cik":"0002103504","reported_name":"Crowe Adrienne Y","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-05-29T23:00:16.000Z","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":"0002103504-26-000005","document":"wk-form4_1780095613.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210350426000005/wk-form4_1780095613.xml","form_type":"4"}},{"id":758479,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":37154,"kind":"person","name":"Downer Edward Michael","position":1,"cik":"0002104239","reported_name":"Downer Edward Michael","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-05-29T22:59:09.000Z","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":"F9","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":"F9","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":"0002104239-26-000006","document":"wk-form4_1780095546.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210423926000006/wk-form4_1780095546.xml","form_type":"4"}},{"id":758478,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":37154,"kind":"person","name":"Downer Edward Michael","position":1,"cik":"0002104239","reported_name":"Downer Edward Michael","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-05-29T22:59:09.000Z","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":"F8","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":"F8","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":"0002104239-26-000006","document":"wk-form4_1780095546.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210423926000006/wk-form4_1780095546.xml","form_type":"4"}},{"id":758477,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":37154,"kind":"person","name":"Downer Edward Michael","position":1,"cik":"0002104239","reported_name":"Downer Edward Michael","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-05-29T22:59:09.000Z","date":"2026-05-27","kind":"exercise","planned":false,"acquired":true,"shares":3301,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"E. Michael Downer, Trustee of the E. Michael Downer Separate Property Trust UTD 9/22/08"},"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."}],"balance_after":1511898,"source":{"system":"sec-edgar","filing":"0002104239-26-000006","document":"wk-form4_1780095546.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210423926000006/wk-form4_1780095546.xml","form_type":"4"}},{"id":830616,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":43121,"kind":"person","name":"Downer Douglas E","position":1,"cik":"0002104981","reported_name":"Downer Douglas E","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Incentive Units - Deferred","published_at":"2026-03-23T17:19:27.000Z","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":"F6","text":"Each incentive unit is the economic equivalent of one share of Issuer Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","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":"F7","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":"F8","text":"Includes 37 dividend equivalent incentive units acquired on December 15, 2025."}],"balance_after":2591,"derivative":{"underlying":"Class A Common Stock","underlying_shares":2554},"source":{"system":"sec-edgar","filing":"0001518715-26-000028","document":"wk-form4_1774286364.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000151871526000028/wk-form4_1774286364.xml","form_type":"4"}},{"id":830615,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":43121,"kind":"person","name":"Downer Douglas E","position":1,"cik":"0002104981","reported_name":"Downer Douglas E","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-03-23T17:19:27.000Z","date":"2025-10-07","kind":"gift","planned":false,"acquired":false,"shares":75000,"ownership":{"direct":false,"nature":"Douglas E Downer Revocable Trust"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"On October 7, 2025, the reporting person gifted 75,000 shares of the issuer's Class A common stock to his daughter's trust, Robert P. Downer, TTEE, Grace Y. Downer Irrevocable Tr U/A Dtd 7/23/25.  The reporting person disclaims any pecuniary interest in these shares."}],"balance_after":2317764,"source":{"system":"sec-edgar","filing":"0001518715-26-000028","document":"wk-form4_1774286364.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000151871526000028/wk-form4_1774286364.xml","form_type":"4"}},{"id":830614,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":43121,"kind":"person","name":"Downer Douglas E","position":1,"cik":"0002104981","reported_name":"Downer Douglas E","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-03-23T17:19:27.000Z","date":"2025-10-07","kind":"gift","planned":false,"acquired":false,"shares":75000,"ownership":{"direct":false,"nature":"Douglas E Downer Revocable Trust"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"On October 7, 2025, the reporting person gifted 75,000 shares of the issuer's Class A common stock to his son's trust, Robert P. Downer, TTEE, Jack Y. Downer Irrevocable Tr U/A Dtd 7/23/25.  The reporting person disclaims any pecuniary interest in these shares."}],"balance_after":2392764,"source":{"system":"sec-edgar","filing":"0001518715-26-000028","document":"wk-form4_1774286364.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000151871526000028/wk-form4_1774286364.xml","form_type":"4"}},{"id":830613,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":43121,"kind":"person","name":"Downer Douglas E","position":1,"cik":"0002104981","reported_name":"Downer Douglas E","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-03-23T17:19:27.000Z","date":"2025-09-02","kind":"grant","planned":false,"acquired":true,"shares":1121270,"ownership":{"direct":false,"nature":"Douglas Downer Family Dynasty Trust"},"footnotes":[{"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."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Received in exchange of 339 shares of MB original voting common stock in connection with the Merger.  E. Michael Downer is the voting trustee for the Douglas Downer Family Dynasty Trust."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Received in exchange of 339 shares of MB original voting common stock in connection with the Merger.  E. Michael Downer is the voting trustee for the Douglas Downer Family Dynasty Trust."}],"balance_after":1121270,"source":{"system":"sec-edgar","filing":"0001518715-26-000028","document":"wk-form4_1774286364.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000151871526000028/wk-form4_1774286364.xml","form_type":"4"}},{"id":830612,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":43121,"kind":"person","name":"Downer Douglas E","position":1,"cik":"0002104981","reported_name":"Downer Douglas E","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-03-23T17:19:27.000Z","date":"2025-09-02","kind":"grant","planned":false,"acquired":true,"shares":2467764,"ownership":{"direct":false,"nature":"Douglas E Downer Revocable Trust"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Received in exchange for an aggregate of 747 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":2467764,"source":{"system":"sec-edgar","filing":"0001518715-26-000028","document":"wk-form4_1774286364.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000151871526000028/wk-form4_1774286364.xml","form_type":"4"}},{"id":865553,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63173,"kind":"person","name":"Duda Nathan","position":1,"cik":"0001602088","reported_name":"Duda Nathan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Class A Common Stock","published_at":"2026-03-04T00:02:44.000Z","date":"2026-03-01","kind":"grant","planned":false,"acquired":true,"shares":7626,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On March 1, 2026, the reporting person was granted 7,626 Restricted Stock Units (\"RSUs\"), which vest in three equal annual installments beginning March 1, 2027.  Each RSU represents a contingent right to receive one share of the Issuer's Class A common stock and do not require the holder to pay any consideration on vesting."}],"balance_after":39993,"source":{"system":"sec-edgar","filing":"0001602088-26-000006","document":"wk-form4_1772582562.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000160208826000006/wk-form4_1772582562.xml","form_type":"4"}},{"id":865552,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63172,"kind":"person","name":"Kallingal Tony P","position":1,"cik":"0002102022","reported_name":"Kallingal Tony P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Banking Officer"}}],"security":"Class A Common Stock","published_at":"2026-03-03T23:59:53.000Z","date":"2026-03-01","kind":"grant","planned":false,"acquired":true,"shares":6048,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On March 1, 2026, the reporting person was granted 6,048 Restricted Stock Units (\"RSUs\"), which vest in three equal annual installments beginning March 1, 2027.  Each RSU represents a contingent right to receive one share of the Issuer's Class A common stock and do not require the holder to pay any consideration on vesting."}],"balance_after":34590,"source":{"system":"sec-edgar","filing":"0002102022-26-000008","document":"wk-form4_1772582391.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210202226000008/wk-form4_1772582391.xml","form_type":"4"}},{"id":865551,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63171,"kind":"person","name":"Pelayo Fernando","position":1,"cik":"0002102020","reported_name":"Pelayo Fernando","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Accounting Officer"}}],"security":"Class A Common Stock","published_at":"2026-03-03T23:58:25.000Z","date":"2026-03-01","kind":"grant","planned":false,"acquired":true,"shares":4470,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On March 1, 2026, the reporting person was granted 4,470 Restricted Stock Units (\"RSUs\"), which vest in three equal annual installments beginning March 1, 2027.  Each RSU represents a contingent right to receive one share of the Issuer's Class A common stock and do not require the holder to pay any consideration on vesting."}],"balance_after":17532,"source":{"system":"sec-edgar","filing":"0002102020-26-000008","document":"wk-form4_1772582302.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210202026000008/wk-form4_1772582302.xml","form_type":"4"}},{"id":865550,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63170,"kind":"person","name":"Pierce Christopher D","position":1,"cik":"0002103476","reported_name":"Pierce Christopher D","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2026-03-03T23:56:41.000Z","date":"2026-03-01","kind":"grant","planned":false,"acquired":true,"shares":7626,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On March 1, 2026, the reporting person was granted 7,626 Restricted Stock Units (\"RSUs\"), which vest in three equal annual installments beginning March 1, 2027.  Each RSU represents a contingent right to receive one share of the Issuer's Class A common stock and do not require the holder to pay any consideration on vesting."}],"balance_after":38496,"source":{"system":"sec-edgar","filing":"0002103476-26-000006","document":"wk-form4_1772582199.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210347626000006/wk-form4_1772582199.xml","form_type":"4"}},{"id":865549,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63169,"kind":"person","name":"Shields Kristie S","position":1,"cik":"0002103004","reported_name":"Shields Kristie S","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Compliance Counsel"}}],"security":"Class A Common Stock","published_at":"2026-03-03T23:55:17.000Z","date":"2026-03-01","kind":"grant","planned":false,"acquired":true,"shares":4207,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On March 1, 2026, the reporting person was granted 4,207 Restricted Stock Units (\"RSUs\"), which vest in three equal annual installments beginning March 1, 2027.  Each RSU represents a contingent right to receive one share of the Issuer's Class A common stock and do not require the holder to pay any consideration on vesting."}],"balance_after":22316,"source":{"system":"sec-edgar","filing":"0002103004-26-000006","document":"wk-form4_1772582115.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210300426000006/wk-form4_1772582115.xml","form_type":"4"}},{"id":865548,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63168,"kind":"person","name":"Shrader Glenn C","position":1,"cik":"0002102635","reported_name":"Shrader Glenn C","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & General Counsel"}}],"security":"Class A Common Stock","published_at":"2026-03-03T23:53:51.000Z","date":"2026-03-01","kind":"grant","planned":false,"acquired":true,"shares":3366,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On March 1, 2026, the reporting person was granted 3,366 Restricted Stock Units (\"RSUs\"), which vest in three equal annual installments beginning March 1, 2027.  Each RSU represents a contingent right to receive one share of the Issuer's Class A common stock and do not require the holder to pay any consideration on vesting."}],"balance_after":18193,"source":{"system":"sec-edgar","filing":"0002102635-26-000006","document":"wk-form4_1772582029.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210263526000006/wk-form4_1772582029.xml","form_type":"4"}},{"id":865620,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63175,"kind":"person","name":"Givans Scott A.","position":1,"cik":"0001509989","reported_name":"Givans Scott A.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Credit Officer"}}],"security":"Class A Common Stock","published_at":"2026-03-03T19:01:31.000Z","date":"2026-03-01","kind":"grant","planned":false,"acquired":true,"shares":6574,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On March 1, 2026, the reporting person was granted 6,574 Restricted Stock Units (\"RSUs\"), which vest in three equal annual installments beginning March 1, 2027.  Each RSU represents a contingent right to receive one share of the Issuer's Class A common stock and do not require the holder to pay any consideration on vesting."}],"balance_after":38137,"source":{"system":"sec-edgar","filing":"0001509989-26-000006","document":"wk-form4_1772582485.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1509989/000150998926000006/wk-form4_1772582485.xml","form_type":"4"}},{"id":887606,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":37154,"kind":"person","name":"Downer Edward Michael","position":1,"cik":"0002104239","reported_name":"Downer Edward Michael","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Incentive Units - Deferred","published_at":"2026-02-24T01:08:19.000Z","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":"F9","text":"Each incentive unit is the economic equivalent of one share of Issuer Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F10","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":"F10","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":"F11","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":"0002104239-26-000004","document":"wk-form4_1771895297.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210423926000004/wk-form4_1771895297.xml","form_type":"4"}},{"id":887605,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":37154,"kind":"person","name":"Downer Edward Michael","position":1,"cik":"0002104239","reported_name":"Downer Edward Michael","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-02-24T01:08:19.000Z","date":"2025-09-02","kind":"grant","planned":false,"acquired":true,"shares":79226,"ownership":{"direct":false,"nature":"E M Downer Family Dynasty II Trust 12/28/03"},"footnotes":[{"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."},{"field":"price","element":"transactionPricePerShare","label":"F8","text":"Received in exchange of 23 shares of MB original voting common stock in connection with the Merger.  The Reporting  Person is the voting trustee for the E M Downer Family Dynasty II Trust dated 12/28/03."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F8","text":"Received in exchange of 23 shares of MB original voting common stock in connection with the Merger.  The Reporting  Person is the voting trustee for the E M Downer Family Dynasty II Trust dated 12/28/03."}],"balance_after":79226,"source":{"system":"sec-edgar","filing":"0002104239-26-000004","document":"wk-form4_1771895297.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210423926000004/wk-form4_1771895297.xml","form_type":"4"}},{"id":887604,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":37154,"kind":"person","name":"Downer Edward Michael","position":1,"cik":"0002104239","reported_name":"Downer Edward Michael","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-02-24T01:08:19.000Z","date":"2025-09-02","kind":"grant","planned":false,"acquired":true,"shares":1121270,"ownership":{"direct":false,"nature":"Robert M Downer Family Dynasty Trust"},"footnotes":[{"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."},{"field":"price","element":"transactionPricePerShare","label":"F7","text":"Received in exchange of 339 shares of MB original voting common stock in connection with the Merger.  The Reporting Person is the voting trustee for the Robert M Downer Family Dynasty Trust."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F7","text":"Received in exchange of 339 shares of MB original voting common stock in connection with the Merger.  The Reporting Person is the voting trustee for the Robert M Downer Family Dynasty Trust."}],"balance_after":1121270,"source":{"system":"sec-edgar","filing":"0002104239-26-000004","document":"wk-form4_1771895297.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210423926000004/wk-form4_1771895297.xml","form_type":"4"}},{"id":887603,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":37154,"kind":"person","name":"Downer Edward Michael","position":1,"cik":"0002104239","reported_name":"Downer Edward Michael","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-02-24T01:08:19.000Z","date":"2025-09-02","kind":"grant","planned":false,"acquired":true,"shares":1121270,"ownership":{"direct":false,"nature":"Douglas Downer Family Dynasty Trust"},"footnotes":[{"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."},{"field":"price","element":"transactionPricePerShare","label":"F6","text":"Received in exchange of 339 shares of MB original voting common stock in connection with the Merger.  The Reporting Person is the voting trustee for the Douglas Downer Family Dynasty Trust."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"Received in exchange of 339 shares of MB original voting common stock in connection with the Merger.  The Reporting Person is the voting trustee for the Douglas Downer Family Dynasty Trust."}],"balance_after":1121270,"source":{"system":"sec-edgar","filing":"0002104239-26-000004","document":"wk-form4_1771895297.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210423926000004/wk-form4_1771895297.xml","form_type":"4"}},{"id":887602,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":37154,"kind":"person","name":"Downer Edward Michael","position":1,"cik":"0002104239","reported_name":"Downer Edward Michael","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-02-24T01:08:19.000Z","date":"2025-09-02","kind":"grant","planned":false,"acquired":true,"shares":1155382,"ownership":{"direct":false,"nature":"E. Michael Downer, Investment Manager for MJAK Holdings, LLC"},"footnotes":[{"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."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"Received in exchange of 349 shares of MB original voting common stock in connection with the Merger.  The Reporting Person is the Investment Manager of MJAK Holdings, LLC and has the power to direct the voting of such shares."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Received in exchange of 349 shares of MB original voting common stock in connection with the Merger.  The Reporting Person is the Investment Manager of MJAK Holdings, LLC and has the power to direct the voting of such shares."}],"balance_after":1155382,"source":{"system":"sec-edgar","filing":"0002104239-26-000004","document":"wk-form4_1771895297.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210423926000004/wk-form4_1771895297.xml","form_type":"4"}},{"id":887601,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":37154,"kind":"person","name":"Downer Edward Michael","position":1,"cik":"0002104239","reported_name":"Downer Edward Michael","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-02-24T01:08:19.000Z","date":"2025-09-02","kind":"grant","planned":false,"acquired":true,"shares":1121270,"ownership":{"direct":false,"nature":"E M Downer Dynasty Trust UAD 11/28/03 FBO Michael Downer"},"footnotes":[{"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."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Received in exchange of 339 shares of MB original voting common stock in connection with the Merger.  The Reporting Person is the investment manager and beneficiary of the E M Downer Dynasty Trust UAD 11/28/03."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Received in exchange of 339 shares of MB original voting common stock in connection with the Merger.  The Reporting Person is the investment manager and beneficiary of the E M Downer Dynasty Trust UAD 11/28/03."}],"balance_after":1121270,"source":{"system":"sec-edgar","filing":"0002104239-26-000004","document":"wk-form4_1771895297.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210423926000004/wk-form4_1771895297.xml","form_type":"4"}},{"id":887600,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":37154,"kind":"person","name":"Downer Edward Michael","position":1,"cik":"0002104239","reported_name":"Downer Edward Michael","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-02-24T01:08:19.000Z","date":"2025-09-02","kind":"grant","planned":false,"acquired":true,"shares":1508597,"ownership":{"direct":false,"nature":"E. Michael Downer, Trustee of the E. Michael Downer Separate Property Trust UTD 9/22/08"},"footnotes":[{"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."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Received in exchange of 456 shares of MB original voting common stock in connection with the Merger.  The Reporting Person is Trustee of the E. Michael Downer Separate Property Trust UTD 9/22/08."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Received in exchange of 456 shares of MB original voting common stock in connection with the Merger.  The Reporting Person is Trustee of the E. Michael Downer Separate Property Trust UTD 9/22/08."}],"balance_after":1508597,"source":{"system":"sec-edgar","filing":"0002104239-26-000004","document":"wk-form4_1771895297.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210423926000004/wk-form4_1771895297.xml","form_type":"4"}},{"id":887599,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":37154,"kind":"person","name":"Downer Edward Michael","position":1,"cik":"0002104239","reported_name":"Downer Edward Michael","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-02-24T01:08:19.000Z","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":"0002104239-26-000004","document":"wk-form4_1771895297.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210423926000004/wk-form4_1771895297.xml","form_type":"4"}},{"id":895975,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63173,"kind":"person","name":"Duda Nathan","position":1,"cik":"0001602088","reported_name":"Duda Nathan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Incentive Units - Not Deferred (2024)","published_at":"2026-02-19T02:17:07.000Z","date":"2026-02-15","kind":"exercise","planned":false,"acquired":false,"shares":2571,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each incentive unit is the economic equivalent of one share of Issuer Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The incentive units vest in two equal annual installments beginning February 15, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The incentive units vest in two equal annual installments beginning February 15, 2027."}],"balance_after":10546,"derivative":{"underlying":"Class A Common Stock","underlying_shares":2571},"source":{"system":"sec-edgar","filing":"0001602088-26-000004","document":"wk-form4_1771467424.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000160208826000004/wk-form4_1771467424.xml","form_type":"4"}},{"id":895974,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63173,"kind":"person","name":"Duda Nathan","position":1,"cik":"0001602088","reported_name":"Duda Nathan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Class A Common Stock","published_at":"2026-02-19T02:17:07.000Z","date":"2026-02-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":1801,"price":15.37,"value":27681.37,"ownership":{"direct":true},"balance_after":32367,"source":{"system":"sec-edgar","filing":"0001602088-26-000004","document":"wk-form4_1771467424.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000160208826000004/wk-form4_1771467424.xml","form_type":"4"}},{"id":895973,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63173,"kind":"person","name":"Duda Nathan","position":1,"cik":"0001602088","reported_name":"Duda Nathan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Class A Common Stock","published_at":"2026-02-19T02:17:07.000Z","date":"2026-02-15","kind":"exercise","planned":false,"acquired":true,"shares":2571,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each incentive unit represents a contingent right to receive one share of Issuer Class A common stock.  Incentive units do not require the holder to pay any consideration upon vesting."}],"balance_after":34168,"source":{"system":"sec-edgar","filing":"0001602088-26-000004","document":"wk-form4_1771467424.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000160208826000004/wk-form4_1771467424.xml","form_type":"4"}},{"id":895978,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63171,"kind":"person","name":"Pelayo Fernando","position":1,"cik":"0002102020","reported_name":"Pelayo Fernando","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Accounting Officer"}}],"security":"Incentive Units - Not Deferred (2024)","published_at":"2026-02-19T02:16:08.000Z","date":"2026-02-15","kind":"exercise","planned":false,"acquired":false,"shares":2506,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each incentive unit is the economic equivalent of one share of Issuer Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The incentive units vest in two equal annual installments beginning February 15, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The incentive units vest in two equal annual installments beginning February 15, 2027."}],"balance_after":5012,"derivative":{"underlying":"Class A Common Stock","underlying_shares":2506},"source":{"system":"sec-edgar","filing":"0002102020-26-000006","document":"wk-form4_1771467364.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210202026000006/wk-form4_1771467364.xml","form_type":"4"}},{"id":895977,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63171,"kind":"person","name":"Pelayo Fernando","position":1,"cik":"0002102020","reported_name":"Pelayo Fernando","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Accounting Officer"}}],"security":"Class A Common Stock","published_at":"2026-02-19T02:16:08.000Z","date":"2026-02-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":1032,"price":15.37,"value":15861.84,"ownership":{"direct":true},"balance_after":13062,"source":{"system":"sec-edgar","filing":"0002102020-26-000006","document":"wk-form4_1771467364.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210202026000006/wk-form4_1771467364.xml","form_type":"4"}},{"id":895976,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63171,"kind":"person","name":"Pelayo Fernando","position":1,"cik":"0002102020","reported_name":"Pelayo Fernando","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Accounting Officer"}}],"security":"Class A Common Stock","published_at":"2026-02-19T02:16:08.000Z","date":"2026-02-15","kind":"exercise","planned":false,"acquired":true,"shares":2506,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each incentive unit represents a contingent right to receive one share of Issuer Class A common stock.  Incentive units do not require the holder to pay any consideration upon vesting."}],"balance_after":14094,"source":{"system":"sec-edgar","filing":"0002102020-26-000006","document":"wk-form4_1771467364.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210202026000006/wk-form4_1771467364.xml","form_type":"4"}},{"id":895972,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63168,"kind":"person","name":"Shrader Glenn C","position":1,"cik":"0002102635","reported_name":"Shrader Glenn C","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & General Counsel"}}],"security":"Incentive Units - Not Deferred (2024)","published_at":"2026-02-19T02:13:40.000Z","date":"2026-02-15","kind":"exercise","planned":false,"acquired":false,"shares":2498,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each incentive unit is the economic equivalent of one share of Issuer Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The incentive units vest in two equal annual installments beginning February 15, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The incentive units vest in two equal annual installments beginning February 15, 2027."}],"balance_after":4997,"derivative":{"underlying":"Class A Common Stock","underlying_shares":2498},"source":{"system":"sec-edgar","filing":"0002102635-26-000004","document":"wk-form4_1771467217.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210263526000004/wk-form4_1771467217.xml","form_type":"4"}},{"id":895971,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63168,"kind":"person","name":"Shrader Glenn C","position":1,"cik":"0002102635","reported_name":"Shrader Glenn C","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & General Counsel"}}],"security":"Incentive Units - Not Deferred (2023)","published_at":"2026-02-19T02:13:40.000Z","date":"2026-02-15","kind":"exercise","planned":false,"acquired":false,"shares":1719,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","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 remaining incentive units vest on February 15, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The remaining incentive units vest on February 15, 2027."}],"balance_after":1720,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1719},"source":{"system":"sec-edgar","filing":"0002102635-26-000004","document":"wk-form4_1771467217.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210263526000004/wk-form4_1771467217.xml","form_type":"4"}},{"id":895970,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63168,"kind":"person","name":"Shrader Glenn C","position":1,"cik":"0002102635","reported_name":"Shrader Glenn C","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & General Counsel"}}],"security":"Incentive Units - Not Deferred (2022)","published_at":"2026-02-19T02:13:40.000Z","date":"2026-02-15","kind":"exercise","planned":false,"acquired":false,"shares":2980,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each incentive unit is the economic equivalent of one share of Issuer Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"All shares have vested as of February 15, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"All shares have vested as of February 15, 2026."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":2980},"source":{"system":"sec-edgar","filing":"0002102635-26-000004","document":"wk-form4_1771467217.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210263526000004/wk-form4_1771467217.xml","form_type":"4"}},{"id":895969,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63168,"kind":"person","name":"Shrader Glenn C","position":1,"cik":"0002102635","reported_name":"Shrader Glenn C","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & General Counsel"}}],"security":"Class A Common Stock","published_at":"2026-02-19T02:13:40.000Z","date":"2026-02-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":1029,"price":15.37,"value":15815.73,"ownership":{"direct":true},"balance_after":14827,"source":{"system":"sec-edgar","filing":"0002102635-26-000004","document":"wk-form4_1771467217.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210263526000004/wk-form4_1771467217.xml","form_type":"4"}},{"id":895968,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63168,"kind":"person","name":"Shrader Glenn C","position":1,"cik":"0002102635","reported_name":"Shrader Glenn C","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & General Counsel"}}],"security":"Class A Common Stock","published_at":"2026-02-19T02:13:40.000Z","date":"2026-02-15","kind":"exercise","planned":false,"acquired":true,"shares":2498,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each incentive unit represents a contingent right to receive one share of Issuer Class A common stock.  Incentive units do not require the holder to pay any consideration upon vesting."}],"balance_after":15856,"source":{"system":"sec-edgar","filing":"0002102635-26-000004","document":"wk-form4_1771467217.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210263526000004/wk-form4_1771467217.xml","form_type":"4"}},{"id":895967,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63168,"kind":"person","name":"Shrader Glenn C","position":1,"cik":"0002102635","reported_name":"Shrader Glenn C","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & General Counsel"}}],"security":"Class A Common Stock","published_at":"2026-02-19T02:13:40.000Z","date":"2026-02-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":708,"price":15.37,"value":10881.96,"ownership":{"direct":true},"balance_after":13358,"source":{"system":"sec-edgar","filing":"0002102635-26-000004","document":"wk-form4_1771467217.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210263526000004/wk-form4_1771467217.xml","form_type":"4"}},{"id":895966,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63168,"kind":"person","name":"Shrader Glenn C","position":1,"cik":"0002102635","reported_name":"Shrader Glenn C","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & General Counsel"}}],"security":"Class A Common Stock","published_at":"2026-02-19T02:13:40.000Z","date":"2026-02-15","kind":"exercise","planned":false,"acquired":true,"shares":1719,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each incentive unit represents a contingent right to receive one share of Issuer Class A common stock.  Incentive units do not require the holder to pay any consideration upon vesting."}],"balance_after":14066,"source":{"system":"sec-edgar","filing":"0002102635-26-000004","document":"wk-form4_1771467217.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210263526000004/wk-form4_1771467217.xml","form_type":"4"}},{"id":895965,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63168,"kind":"person","name":"Shrader Glenn C","position":1,"cik":"0002102635","reported_name":"Shrader Glenn C","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & General Counsel"}}],"security":"Class A Common Stock","published_at":"2026-02-19T02:13:40.000Z","date":"2026-02-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":1228,"price":15.37,"value":18874.36,"ownership":{"direct":true},"balance_after":12347,"source":{"system":"sec-edgar","filing":"0002102635-26-000004","document":"wk-form4_1771467217.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210263526000004/wk-form4_1771467217.xml","form_type":"4"}},{"id":895964,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63168,"kind":"person","name":"Shrader Glenn C","position":1,"cik":"0002102635","reported_name":"Shrader Glenn C","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & General Counsel"}}],"security":"Class A Common Stock","published_at":"2026-02-19T02:13:40.000Z","date":"2026-02-15","kind":"exercise","planned":false,"acquired":true,"shares":2980,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each incentive unit represents a contingent right to receive one share of Issuer Class A common stock.  Incentive units do not require the holder to pay any consideration upon vesting."}],"balance_after":13575,"source":{"system":"sec-edgar","filing":"0002102635-26-000004","document":"wk-form4_1771467217.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210263526000004/wk-form4_1771467217.xml","form_type":"4"}},{"id":895963,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63169,"kind":"person","name":"Shields Kristie S","position":1,"cik":"0002103004","reported_name":"Shields Kristie S","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Compliance Counsel"}}],"security":"Incentive Units - Not Deferred (2024)","published_at":"2026-02-19T02:10:20.000Z","date":"2026-02-15","kind":"exercise","planned":false,"acquired":false,"shares":2915,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each incentive unit is the economic equivalent of one share of Issuer Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The incentive units vest in two equal annual installments beginning February 15, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The incentive units vest in two equal annual installments beginning February 15, 2027."}],"balance_after":5830,"derivative":{"underlying":"Class A Common Stock","underlying_shares":2915},"source":{"system":"sec-edgar","filing":"0002103004-26-000004","document":"wk-form4_1771467017.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210300426000004/wk-form4_1771467017.xml","form_type":"4"}},{"id":895962,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63169,"kind":"person","name":"Shields Kristie S","position":1,"cik":"0002103004","reported_name":"Shields Kristie S","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Compliance Counsel"}}],"security":"Incentive Units - Not Deferred (2023)","published_at":"2026-02-19T02:10:20.000Z","date":"2026-02-15","kind":"exercise","planned":false,"acquired":false,"shares":1961,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","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 remaining incentive units vest on February 15, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The remaining incentive units vest on February 15, 2027."}],"balance_after":1961,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1961},"source":{"system":"sec-edgar","filing":"0002103004-26-000004","document":"wk-form4_1771467017.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210300426000004/wk-form4_1771467017.xml","form_type":"4"}},{"id":895961,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63169,"kind":"person","name":"Shields Kristie S","position":1,"cik":"0002103004","reported_name":"Shields Kristie S","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Compliance Counsel"}}],"security":"Incentive Units - Not Deferred (2022)","published_at":"2026-02-19T02:10:20.000Z","date":"2026-02-15","kind":"exercise","planned":false,"acquired":false,"shares":3398,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each incentive unit is the economic equivalent of one share of Issuer Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"All shares have vested as of February 15, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"All shares have vested as of February 15, 2026."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":3398},"source":{"system":"sec-edgar","filing":"0002103004-26-000004","document":"wk-form4_1771467017.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210300426000004/wk-form4_1771467017.xml","form_type":"4"}},{"id":895960,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63169,"kind":"person","name":"Shields Kristie S","position":1,"cik":"0002103004","reported_name":"Shields Kristie S","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Compliance Counsel"}}],"security":"Class A Common Stock","published_at":"2026-02-19T02:10:20.000Z","date":"2026-02-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":1201,"price":15.37,"value":18459.37,"ownership":{"direct":true},"balance_after":18109,"source":{"system":"sec-edgar","filing":"0002103004-26-000004","document":"wk-form4_1771467017.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210300426000004/wk-form4_1771467017.xml","form_type":"4"}},{"id":895959,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63169,"kind":"person","name":"Shields Kristie S","position":1,"cik":"0002103004","reported_name":"Shields Kristie S","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Compliance Counsel"}}],"security":"Class A Common Stock","published_at":"2026-02-19T02:10:20.000Z","date":"2026-02-15","kind":"exercise","planned":false,"acquired":true,"shares":2915,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each incentive unit represents a contingent right to receive one share of Issuer Class A common stock.  Incentive units do not require the holder to pay any consideration upon vesting."}],"balance_after":19310,"source":{"system":"sec-edgar","filing":"0002103004-26-000004","document":"wk-form4_1771467017.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210300426000004/wk-form4_1771467017.xml","form_type":"4"}},{"id":895958,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63169,"kind":"person","name":"Shields Kristie S","position":1,"cik":"0002103004","reported_name":"Shields Kristie S","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Compliance Counsel"}}],"security":"Class A Common Stock","published_at":"2026-02-19T02:10:20.000Z","date":"2026-02-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":808,"price":15.37,"value":12418.96,"ownership":{"direct":true},"balance_after":16395,"source":{"system":"sec-edgar","filing":"0002103004-26-000004","document":"wk-form4_1771467017.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210300426000004/wk-form4_1771467017.xml","form_type":"4"}},{"id":895957,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63169,"kind":"person","name":"Shields Kristie S","position":1,"cik":"0002103004","reported_name":"Shields Kristie S","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Compliance Counsel"}}],"security":"Class A Common Stock","published_at":"2026-02-19T02:10:20.000Z","date":"2026-02-15","kind":"exercise","planned":false,"acquired":true,"shares":1961,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each incentive unit represents a contingent right to receive one share of Issuer Class A common stock.  Incentive units do not require the holder to pay any consideration upon vesting."}],"balance_after":17203,"source":{"system":"sec-edgar","filing":"0002103004-26-000004","document":"wk-form4_1771467017.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210300426000004/wk-form4_1771467017.xml","form_type":"4"}},{"id":895956,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63169,"kind":"person","name":"Shields Kristie S","position":1,"cik":"0002103004","reported_name":"Shields Kristie S","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Compliance Counsel"}}],"security":"Class A Common Stock","published_at":"2026-02-19T02:10:20.000Z","date":"2026-02-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":1400,"price":15.37,"value":21518.0,"ownership":{"direct":true},"balance_after":15242,"source":{"system":"sec-edgar","filing":"0002103004-26-000004","document":"wk-form4_1771467017.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210300426000004/wk-form4_1771467017.xml","form_type":"4"}},{"id":895955,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63169,"kind":"person","name":"Shields Kristie S","position":1,"cik":"0002103004","reported_name":"Shields Kristie S","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Compliance Counsel"}}],"security":"Class A Common Stock","published_at":"2026-02-19T02:10:20.000Z","date":"2026-02-15","kind":"exercise","planned":false,"acquired":true,"shares":3398,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each incentive unit represents a contingent right to receive one share of Issuer Class A common stock.  Incentive units do not require the holder to pay any consideration upon vesting."}],"balance_after":16642,"source":{"system":"sec-edgar","filing":"0002103004-26-000004","document":"wk-form4_1771467017.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210300426000004/wk-form4_1771467017.xml","form_type":"4"}},{"id":895954,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63172,"kind":"person","name":"Kallingal Tony P","position":1,"cik":"0002102022","reported_name":"Kallingal Tony P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Banking Officer"}}],"security":"Incentive Units - Not Deferred (2024)","published_at":"2026-02-19T02:02:47.000Z","date":"2026-02-15","kind":"exercise","planned":false,"acquired":false,"shares":4580,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each incentive unit is the economic equivalent of one share of Issuer Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The incentive units vest in two equal annual installments beginning February 15, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The incentive units vest in two equal annual installments beginning February 15, 2027."}],"balance_after":9162,"derivative":{"underlying":"Class A Common Stock","underlying_shares":4580},"source":{"system":"sec-edgar","filing":"0002102022-26-000006","document":"wk-form4_1771466564.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210202226000006/wk-form4_1771466564.xml","form_type":"4"}},{"id":895953,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63172,"kind":"person","name":"Kallingal Tony P","position":1,"cik":"0002102022","reported_name":"Kallingal Tony P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Banking Officer"}}],"security":"Class A Common Stock","published_at":"2026-02-19T02:02:47.000Z","date":"2026-02-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":1887,"price":15.37,"value":29003.19,"ownership":{"direct":true},"balance_after":28542,"source":{"system":"sec-edgar","filing":"0002102022-26-000006","document":"wk-form4_1771466564.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210202226000006/wk-form4_1771466564.xml","form_type":"4"}},{"id":895952,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63172,"kind":"person","name":"Kallingal Tony P","position":1,"cik":"0002102022","reported_name":"Kallingal Tony P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Banking Officer"}}],"security":"Class A Common Stock","published_at":"2026-02-19T02:02:47.000Z","date":"2026-02-15","kind":"exercise","planned":false,"acquired":true,"shares":4580,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each incentive unit represents a contingent right to receive one share of Issuer Class A common stock.  Incentive units do not require the holder to pay any consideration upon vesting."}],"balance_after":30429,"source":{"system":"sec-edgar","filing":"0002102022-26-000006","document":"wk-form4_1771466564.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210202226000006/wk-form4_1771466564.xml","form_type":"4"}},{"id":895951,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63170,"kind":"person","name":"Pierce Christopher D","position":1,"cik":"0002103476","reported_name":"Pierce Christopher D","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Operating Officer"}}],"security":"Incentive Units - Not Deferred (2024)","published_at":"2026-02-19T02:01:49.000Z","date":"2026-02-15","kind":"exercise","planned":false,"acquired":false,"shares":4580,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each incentive unit is the economic equivalent of one share of Issuer Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The incentive units vest in two equal annual installments beginning February 15, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The incentive units vest in two equal annual installments beginning February 15, 2027."}],"balance_after":9162,"derivative":{"underlying":"Class A Common Stock","underlying_shares":4580},"source":{"system":"sec-edgar","filing":"0002103476-26-000004","document":"wk-form4_1771466506.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210347626000004/wk-form4_1771466506.xml","form_type":"4"}},{"id":895950,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63170,"kind":"person","name":"Pierce Christopher D","position":1,"cik":"0002103476","reported_name":"Pierce Christopher D","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2026-02-19T02:01:49.000Z","date":"2026-02-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":1887,"price":15.37,"value":29003.19,"ownership":{"direct":true},"balance_after":30870,"source":{"system":"sec-edgar","filing":"0002103476-26-000004","document":"wk-form4_1771466506.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210347626000004/wk-form4_1771466506.xml","form_type":"4"}},{"id":895949,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63170,"kind":"person","name":"Pierce Christopher D","position":1,"cik":"0002103476","reported_name":"Pierce Christopher D","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2026-02-19T02:01:49.000Z","date":"2026-02-15","kind":"exercise","planned":false,"acquired":true,"shares":4580,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each incentive unit represents a contingent right to receive one share of Issuer Class A common stock.  Incentive units do not require the holder to pay any consideration upon vesting."}],"balance_after":32757,"source":{"system":"sec-edgar","filing":"0002103476-26-000004","document":"wk-form4_1771466506.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210347626000004/wk-form4_1771466506.xml","form_type":"4"}},{"id":895999,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63175,"kind":"person","name":"Givans Scott A.","position":1,"cik":"0001509989","reported_name":"Givans Scott A.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Credit Officer"}}],"security":"Incentive Units - Not Deferred (2024)","published_at":"2026-02-18T21:06:13.000Z","date":"2026-02-15","kind":"exercise","planned":false,"acquired":false,"shares":4164,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each incentive unit is the economic equivalent of one share of Issuer Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The incentive units vest in two equal annual installments beginning February 15, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The incentive units vest in two equal annual installments beginning February 15, 2027."}],"balance_after":8329,"derivative":{"underlying":"Class A Common Stock","underlying_shares":4164},"source":{"system":"sec-edgar","filing":"0001509989-26-000004","document":"wk-form4_1771466770.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1509989/000150998926000004/wk-form4_1771466770.xml","form_type":"4"}},{"id":895998,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63175,"kind":"person","name":"Givans Scott A.","position":1,"cik":"0001509989","reported_name":"Givans Scott A.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Credit Officer"}}],"security":"Class A Common Stock","published_at":"2026-02-18T21:06:13.000Z","date":"2026-02-15","kind":"tax_withholding","planned":false,"acquired":false,"shares":1715,"price":15.37,"value":26359.55,"ownership":{"direct":true},"balance_after":31563,"source":{"system":"sec-edgar","filing":"0001509989-26-000004","document":"wk-form4_1771466770.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1509989/000150998926000004/wk-form4_1771466770.xml","form_type":"4"}},{"id":895997,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63175,"kind":"person","name":"Givans Scott A.","position":1,"cik":"0001509989","reported_name":"Givans Scott A.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Credit Officer"}}],"security":"Class A Common Stock","published_at":"2026-02-18T21:06:13.000Z","date":"2026-02-15","kind":"exercise","planned":false,"acquired":true,"shares":4164,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each incentive unit represents a contingent right to receive one share of Issuer Class A common stock.  Incentive units do not require the holder to pay any consideration upon vesting."}],"balance_after":33278,"source":{"system":"sec-edgar","filing":"0001509989-26-000004","document":"wk-form4_1771466770.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1509989/000150998926000004/wk-form4_1771466770.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"}},{"id":921225,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":43120,"kind":"person","name":"Crowe Adrienne Y","position":1,"cik":"0002103504","reported_name":"Crowe Adrienne Y","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Incentive Units - Deferred","published_at":"2026-02-03T22:51:56.000Z","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":"0001518715-26-000015","document":"wk-form4_1770159114.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000151871526000015/wk-form4_1770159114.xml","form_type":"4"}},{"id":921224,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":43120,"kind":"person","name":"Crowe Adrienne Y","position":1,"cik":"0002103504","reported_name":"Crowe Adrienne Y","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-02-03T22:51:56.000Z","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":"0001518715-26-000015","document":"wk-form4_1770159114.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000151871526000015/wk-form4_1770159114.xml","form_type":"4"}},{"id":921221,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":43122,"kind":"person","name":"Cochran Patricia","position":1,"cik":"0002104575","reported_name":"Cochran Patricia","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Incentive Units - Deferred","published_at":"2026-02-03T22:48:07.000Z","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":"0001518715-26-000013","document":"wk-form4_1770158882.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000151871526000013/wk-form4_1770158882.xml","form_type":"4"}},{"id":921220,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":43122,"kind":"person","name":"Cochran Patricia","position":1,"cik":"0002104575","reported_name":"Cochran Patricia","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-02-03T22:48:07.000Z","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":"0001518715-26-000013","document":"wk-form4_1770158882.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000151871526000013/wk-form4_1770158882.xml","form_type":"4"}},{"id":950358,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63173,"kind":"person","name":"Duda Nathan","position":1,"cik":"0001602088","reported_name":"Duda Nathan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Incentive Units - Not Deferred (2024)","published_at":"2026-01-06T00:48:54.000Z","date":"2025-09-02","kind":"grant","planned":false,"acquired":true,"shares":13117,"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":"F6","text":"The incentive units vest in three equal annual installments beginning February 15, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"The incentive units vest in three equal annual installments beginning February 15, 2026."}],"balance_after":13117,"derivative":{"underlying":"Class A Common Stock","underlying_shares":13117},"source":{"system":"sec-edgar","filing":"0001602088-26-000002","document":"wk-form4_1767660532.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000160208826000002/wk-form4_1767660532.xml","form_type":"4"}},{"id":950357,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63173,"kind":"person","name":"Duda Nathan","position":1,"cik":"0001602088","reported_name":"Duda Nathan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Incentive Units - Deferred","published_at":"2026-01-06T00:48:54.000Z","date":"2025-09-02","kind":"grant","planned":false,"acquired":true,"shares":104920,"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 1,513  incentive units acquired on December 15, 2025 pursuant to dividend reinvestment."}],"balance_after":106433,"derivative":{"underlying":"Class A Common Stock","underlying_shares":104920},"source":{"system":"sec-edgar","filing":"0001602088-26-000002","document":"wk-form4_1767660532.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000160208826000002/wk-form4_1767660532.xml","form_type":"4"}},{"id":950356,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63173,"kind":"person","name":"Duda Nathan","position":1,"cik":"0001602088","reported_name":"Duda Nathan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Class A Common Stock","published_at":"2026-01-06T00:48:54.000Z","date":"2025-12-31","kind":"tax_withholding","planned":false,"acquired":false,"shares":4903,"price":14.63,"value":71730.89,"ownership":{"direct":true},"balance_after":31597,"source":{"system":"sec-edgar","filing":"0001602088-26-000002","document":"wk-form4_1767660532.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000160208826000002/wk-form4_1767660532.xml","form_type":"4"}},{"id":950355,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63173,"kind":"person","name":"Duda Nathan","position":1,"cik":"0001602088","reported_name":"Duda Nathan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Class A Common Stock","published_at":"2026-01-06T00:48:54.000Z","date":"2025-09-26","kind":"grant","planned":false,"acquired":true,"shares":21818,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":36500,"source":{"system":"sec-edgar","filing":"0001602088-26-000002","document":"wk-form4_1767660532.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000160208826000002/wk-form4_1767660532.xml","form_type":"4"}},{"id":950354,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63173,"kind":"person","name":"Duda Nathan","position":1,"cik":"0001602088","reported_name":"Duda Nathan","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & CFO"}}],"security":"Class A Common Stock","published_at":"2026-01-06T00:48:54.000Z","date":"2025-09-02","kind":"grant","planned":false,"acquired":true,"shares":14682,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Received in exchange for 4.45 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":14682,"source":{"system":"sec-edgar","filing":"0001602088-26-000002","document":"wk-form4_1767660532.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000160208826000002/wk-form4_1767660532.xml","form_type":"4"}},{"id":950353,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63172,"kind":"person","name":"Kallingal Tony P","position":1,"cik":"0002102022","reported_name":"Kallingal Tony P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Banking Officer"}}],"security":"Incentive Units - Not Deferred (2024)","published_at":"2026-01-06T00:47:38.000Z","date":"2025-09-02","kind":"grant","planned":false,"acquired":true,"shares":13742,"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":"F6","text":"The incentive units vest in three equal annual installments beginning February 15, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"The incentive units vest in three equal annual installments beginning February 15, 2026."}],"balance_after":13742,"derivative":{"underlying":"Class A Common Stock","underlying_shares":13742},"source":{"system":"sec-edgar","filing":"0002102022-26-000004","document":"wk-form4_1767660456.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210202226000004/wk-form4_1767660456.xml","form_type":"4"}},{"id":950352,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63172,"kind":"person","name":"Kallingal Tony P","position":1,"cik":"0002102022","reported_name":"Kallingal Tony P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Banking Officer"}}],"security":"Incentive Units - Deferred","published_at":"2026-01-06T00:47:38.000Z","date":"2025-09-02","kind":"grant","planned":false,"acquired":true,"shares":38214,"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 551 incentive units acquired on December 15, 2025 pursuant to dividend reinvestment."}],"balance_after":38765,"derivative":{"underlying":"Class A Common Stock","underlying_shares":38214},"source":{"system":"sec-edgar","filing":"0002102022-26-000004","document":"wk-form4_1767660456.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210202226000004/wk-form4_1767660456.xml","form_type":"4"}},{"id":950351,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63172,"kind":"person","name":"Kallingal Tony P","position":1,"cik":"0002102022","reported_name":"Kallingal Tony P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Banking Officer"}}],"security":"Class A Common Stock","published_at":"2026-01-06T00:47:38.000Z","date":"2025-12-31","kind":"tax_withholding","planned":false,"acquired":false,"shares":4367,"price":14.63,"value":63889.21,"ownership":{"direct":true},"balance_after":25849,"source":{"system":"sec-edgar","filing":"0002102022-26-000004","document":"wk-form4_1767660456.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210202226000004/wk-form4_1767660456.xml","form_type":"4"}},{"id":950350,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63172,"kind":"person","name":"Kallingal Tony P","position":1,"cik":"0002102022","reported_name":"Kallingal Tony P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Banking Officer"}}],"security":"Class A Common Stock","published_at":"2026-01-06T00:47:38.000Z","date":"2025-09-26","kind":"grant","planned":false,"acquired":true,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":30216,"source":{"system":"sec-edgar","filing":"0002102022-26-000004","document":"wk-form4_1767660456.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210202226000004/wk-form4_1767660456.xml","form_type":"4"}},{"id":950349,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63172,"kind":"person","name":"Kallingal Tony P","position":1,"cik":"0002102022","reported_name":"Kallingal Tony P","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Banking Officer"}}],"security":"Class A Common Stock","published_at":"2026-01-06T00:47:38.000Z","date":"2025-09-02","kind":"grant","planned":false,"acquired":true,"shares":10216,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Received in exchange for an aggregate of 3.09 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":10216,"source":{"system":"sec-edgar","filing":"0002102022-26-000004","document":"wk-form4_1767660456.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210202226000004/wk-form4_1767660456.xml","form_type":"4"}},{"id":950344,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63170,"kind":"person","name":"Pierce Christopher D","position":1,"cik":"0002103476","reported_name":"Pierce Christopher D","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Operating Officer"}}],"security":"Incentive Units - Not Deferred (2024)","published_at":"2026-01-06T00:45:56.000Z","date":"2025-09-02","kind":"grant","planned":false,"acquired":true,"shares":13742,"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 incentive units vest in three equal annual installments beginning February 15, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The incentive units vest in three equal annual installments beginning February 15, 2026."}],"balance_after":13742,"derivative":{"underlying":"Class A Common Stock","underlying_shares":13742},"source":{"system":"sec-edgar","filing":"0002103476-26-000002","document":"wk-form4_1767660354.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210347626000002/wk-form4_1767660354.xml","form_type":"4"}},{"id":950343,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63170,"kind":"person","name":"Pierce Christopher D","position":1,"cik":"0002103476","reported_name":"Pierce Christopher D","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2026-01-06T00:45:56.000Z","date":"2025-12-31","kind":"tax_withholding","planned":false,"acquired":false,"shares":4903,"price":14.63,"value":71730.89,"ownership":{"direct":true},"balance_after":28177,"source":{"system":"sec-edgar","filing":"0002103476-26-000002","document":"wk-form4_1767660354.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210347626000002/wk-form4_1767660354.xml","form_type":"4"}},{"id":950342,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63170,"kind":"person","name":"Pierce Christopher D","position":1,"cik":"0002103476","reported_name":"Pierce Christopher D","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2026-01-06T00:45:56.000Z","date":"2025-09-26","kind":"grant","planned":false,"acquired":true,"shares":21818,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":33080,"source":{"system":"sec-edgar","filing":"0002103476-26-000002","document":"wk-form4_1767660354.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210347626000002/wk-form4_1767660354.xml","form_type":"4"}},{"id":950341,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63170,"kind":"person","name":"Pierce Christopher D","position":1,"cik":"0002103476","reported_name":"Pierce Christopher D","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Operating Officer"}}],"security":"Class A Common Stock","published_at":"2026-01-06T00:45:56.000Z","date":"2025-09-02","kind":"grant","planned":false,"acquired":true,"shares":11262,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Received in exchange for an aggregate of 3.41 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":11262,"source":{"system":"sec-edgar","filing":"0002103476-26-000002","document":"wk-form4_1767660354.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210347626000002/wk-form4_1767660354.xml","form_type":"4"}},{"id":950348,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63171,"kind":"person","name":"Pelayo Fernando","position":1,"cik":"0002102020","reported_name":"Pelayo Fernando","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Accounting Officer"}}],"security":"Incentive Units - Not Deferred (2024)","published_at":"2026-01-06T00:43:45.000Z","date":"2025-09-02","kind":"grant","planned":false,"acquired":true,"shares":7518,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"As consideration in the merger of HomeStreet Bank, a wholly owned subsidiary of Issuer, with and into Mechanics Bank (\"MB\"), pursuant to the which  MB continued as the surviving corporation and as a wholly owned subsidiary of Issuer (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":"F2","text":"Each incentive unit is the economic equivalent of one share of Issuer Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The incentive units vest in three equal annual installments beginning February 15, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The incentive units vest in three equal annual installments beginning February 15, 2026."}],"balance_after":7518,"derivative":{"underlying":"Class A Common Stock","underlying_shares":7518},"source":{"system":"sec-edgar","filing":"0002102020-26-000004","document":"wk-form4_1767660222.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210202026000004/wk-form4_1767660222.xml","form_type":"4"}},{"id":950347,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63171,"kind":"person","name":"Pelayo Fernando","position":1,"cik":"0002102020","reported_name":"Pelayo Fernando","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Accounting Officer"}}],"security":"Incentive Units - Deferred","published_at":"2026-01-06T00:43:45.000Z","date":"2025-09-02","kind":"grant","planned":false,"acquired":true,"shares":64982,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"As consideration in the merger of HomeStreet Bank, a wholly owned subsidiary of Issuer, with and into Mechanics Bank (\"MB\"), pursuant to the which  MB continued as the surviving corporation and as a wholly owned subsidiary of Issuer (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":"F2","text":"Each incentive unit is the economic equivalent of one share of Issuer Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","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":"F3","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":"F4","text":"Includes 937 incentive units acquired on December 15, 2025 pursuant to dividend reinvestment."}],"balance_after":65919,"derivative":{"underlying":"Class A Common Stock","underlying_shares":64982},"source":{"system":"sec-edgar","filing":"0002102020-26-000004","document":"wk-form4_1767660222.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210202026000004/wk-form4_1767660222.xml","form_type":"4"}},{"id":950346,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63171,"kind":"person","name":"Pelayo Fernando","position":1,"cik":"0002102020","reported_name":"Pelayo Fernando","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Accounting Officer"}}],"security":"Class A Common Stock","published_at":"2026-01-06T00:43:45.000Z","date":"2025-12-31","kind":"tax_withholding","planned":false,"acquired":false,"shares":1139,"price":14.63,"value":16663.57,"ownership":{"direct":true},"balance_after":11588,"source":{"system":"sec-edgar","filing":"0002102020-26-000004","document":"wk-form4_1767660222.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210202026000004/wk-form4_1767660222.xml","form_type":"4"}},{"id":950345,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63171,"kind":"person","name":"Pelayo Fernando","position":1,"cik":"0002102020","reported_name":"Pelayo Fernando","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Accounting Officer"}}],"security":"Class A Common Stock","published_at":"2026-01-06T00:43:45.000Z","date":"2025-09-26","kind":"grant","planned":false,"acquired":true,"shares":12727,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":12727,"source":{"system":"sec-edgar","filing":"0002102020-26-000004","document":"wk-form4_1767660222.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210202026000004/wk-form4_1767660222.xml","form_type":"4"}},{"id":950340,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63169,"kind":"person","name":"Shields Kristie S","position":1,"cik":"0002103004","reported_name":"Shields Kristie S","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Compliance Counsel"}}],"security":"Incentive Units - Not Deferred (2024)","published_at":"2026-01-06T00:41:27.000Z","date":"2025-09-02","kind":"grant","planned":false,"acquired":true,"shares":8745,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"As consideration in the merger of HomeStreet Bank, a wholly owned subsidiary of Issuer, with and into Mechanics Bank (\"MB\"), pursuant to the which  MB continued as the surviving corporation and as a wholly owned subsidiary of Issuer (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":"F2","text":"Each incentive unit is the economic equivalent of one share of Issuer Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The incentive units vest in three equal annual installments beginning February 15, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The incentive units vest in three equal annual installments beginning February 15, 2026."}],"balance_after":8745,"derivative":{"underlying":"Class A Common Stock","underlying_shares":8745},"source":{"system":"sec-edgar","filing":"0002103004-26-000002","document":"wk-form4_1767660083.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210300426000002/wk-form4_1767660083.xml","form_type":"4"}},{"id":950339,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63169,"kind":"person","name":"Shields Kristie S","position":1,"cik":"0002103004","reported_name":"Shields Kristie S","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Compliance Counsel"}}],"security":"Incentive Units - Not Deferred (2023)","published_at":"2026-01-06T00:41:27.000Z","date":"2025-09-02","kind":"grant","planned":false,"acquired":true,"shares":3922,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"As consideration in the merger of HomeStreet Bank, a wholly owned subsidiary of Issuer, with and into Mechanics Bank (\"MB\"), pursuant to the which  MB continued as the surviving corporation and as a wholly owned subsidiary of Issuer (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":"F2","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 incentive units vest in two equal annual installments beginning February 15, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"The incentive units vest in two equal annual installments beginning February 15, 2026."}],"balance_after":3922,"derivative":{"underlying":"Class A Common Stock","underlying_shares":3922},"source":{"system":"sec-edgar","filing":"0002103004-26-000002","document":"wk-form4_1767660083.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210300426000002/wk-form4_1767660083.xml","form_type":"4"}},{"id":950338,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63169,"kind":"person","name":"Shields Kristie S","position":1,"cik":"0002103004","reported_name":"Shields Kristie S","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Compliance Counsel"}}],"security":"Incentive Units - Not Deferred (2022)","published_at":"2026-01-06T00:41:27.000Z","date":"2025-09-02","kind":"grant","planned":false,"acquired":true,"shares":3398,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"As consideration in the merger of HomeStreet Bank, a wholly owned subsidiary of Issuer, with and into Mechanics Bank (\"MB\"), pursuant to the which  MB continued as the surviving corporation and as a wholly owned subsidiary of Issuer (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":"F2","text":"Each incentive unit is the economic equivalent of one share of Issuer Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The incentive units vest on February 15, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The incentive units vest on February 15, 2026."}],"balance_after":3398,"derivative":{"underlying":"Class A Common Stock","underlying_shares":3398},"source":{"system":"sec-edgar","filing":"0002103004-26-000002","document":"wk-form4_1767660083.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210300426000002/wk-form4_1767660083.xml","form_type":"4"}},{"id":950337,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63169,"kind":"person","name":"Shields Kristie S","position":1,"cik":"0002103004","reported_name":"Shields Kristie S","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Compliance Counsel"}}],"security":"Class A Common Stock","published_at":"2026-01-06T00:41:27.000Z","date":"2025-12-31","kind":"tax_withholding","planned":false,"acquired":false,"shares":1301,"price":14.63,"value":19033.63,"ownership":{"direct":true},"balance_after":13244,"source":{"system":"sec-edgar","filing":"0002103004-26-000002","document":"wk-form4_1767660083.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210300426000002/wk-form4_1767660083.xml","form_type":"4"}},{"id":950336,"issuer":{"id":4145,"kind":"organization","name":"Mechanics Bancorp"},"owners":[{"id":63169,"kind":"person","name":"Shields Kristie S","position":1,"cik":"0002103004","reported_name":"Shields Kristie S","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"EVP & Chief Compliance Counsel"}}],"security":"Class A Common Stock","published_at":"2026-01-06T00:41:27.000Z","date":"2025-09-26","kind":"grant","planned":false,"acquired":true,"shares":14545,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":14545,"source":{"system":"sec-edgar","filing":"0002103004-26-000002","document":"wk-form4_1767660083.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1518715/000210300426000002/wk-form4_1767660083.xml","form_type":"4"}}],"next_cursor":"2026-01-06T00:41:27.000000Z,950336"}