{"transactions":[{"id":2207,"issuer":{"id":448,"kind":"organization","name":"Eastern Bankshares, Inc.","symbol":"EBC"},"owners":[{"id":1694,"kind":"person","name":"Henry Kathleen Cloherty","position":1,"cik":"0001825659","reported_name":"Henry Kathleen Cloherty","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive VP, General Counsel"}}],"security":"Common Stock","published_at":"2026-09-03T20:15:07.000Z","date":"2026-09-02","kind":"sale","planned":false,"acquired":false,"shares":14000,"price":21.68,"value":303520.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Represents the average sale price. The actual sale prices range from $21.68 to $21.69 per share. The reporting person will supply the SEC, the Issuer, or a security holder of the Issuer, with full information regarding the number of shares at each price upon request."}],"balance_after":43146,"source":{"system":"sec-edgar","filing":"0001193125-26-381910","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1825659/000119312526381910/ownership.xml","form_type":"4"}},{"id":858772,"issuer":{"id":448,"kind":"organization","name":"Eastern Bankshares, Inc.","symbol":"EBC"},"owners":[{"id":1694,"kind":"person","name":"Henry Kathleen Cloherty","position":1,"cik":"0001825659","reported_name":"Henry Kathleen Cloherty","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive VP, General Counsel"}}],"security":"Restricted Stock Units","published_at":"2026-03-05T16:38:28.000Z","date":"2026-03-03","kind":"exercise","planned":false,"acquired":false,"shares":2165,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Restricted stock units convert into common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On March 3, 2025, the reporting person was granted 34,697 restricted stock units of which 6,497 vest in three equal annual installments beginning March 3, 2026, after market close, and 28,200 vest after 3 years, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"On March 3, 2025, the reporting person was granted 34,697 restricted stock units of which 6,497 vest in three equal annual installments beginning March 3, 2026, after market close, and 28,200 vest after 3 years, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date."}],"balance_after":32532,"derivative":{"underlying":"Common stock","underlying_shares":2165},"source":{"system":"sec-edgar","filing":"0001193125-26-094109","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1825659/000119312526094109/ownership.xml","form_type":"4"}},{"id":858771,"issuer":{"id":448,"kind":"organization","name":"Eastern Bankshares, Inc.","symbol":"EBC"},"owners":[{"id":1694,"kind":"person","name":"Henry Kathleen Cloherty","position":1,"cik":"0001825659","reported_name":"Henry Kathleen Cloherty","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive VP, General Counsel"}}],"security":"Common Stock","published_at":"2026-03-05T16:38:28.000Z","date":"2026-03-03","kind":"tax_withholding","planned":false,"acquired":false,"shares":961,"price":19.45,"value":18691.45,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F7","text":"The reporting person's immediately preceding Form 4, filed on March 3, 2026, inadvertently understated the amount of securities beneficially owned following reported transaction(s) by 16,961 common shares. The understatement was the effect of a clerical error as the calculation omitted 16,961 directly held shares that were acquired on March 1, 2026 and reported on prior Form 4s. The amount shown in this table corrects the inadvertent exclusion."}],"balance_after":57146,"source":{"system":"sec-edgar","filing":"0001193125-26-094109","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1825659/000119312526094109/ownership.xml","form_type":"4"}},{"id":858770,"issuer":{"id":448,"kind":"organization","name":"Eastern Bankshares, Inc.","symbol":"EBC"},"owners":[{"id":1694,"kind":"person","name":"Henry Kathleen Cloherty","position":1,"cik":"0001825659","reported_name":"Henry Kathleen Cloherty","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive VP, General Counsel"}}],"security":"Common Stock","published_at":"2026-03-05T16:38:28.000Z","date":"2026-03-03","kind":"exercise","planned":false,"acquired":true,"shares":2165,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Restricted stock units convert into common stock on a one-for-one basis."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F7","text":"The reporting person's immediately preceding Form 4, filed on March 3, 2026, inadvertently understated the amount of securities beneficially owned following reported transaction(s) by 16,961 common shares. The understatement was the effect of a clerical error as the calculation omitted 16,961 directly held shares that were acquired on March 1, 2026 and reported on prior Form 4s. The amount shown in this table corrects the inadvertent exclusion."}],"balance_after":58107,"source":{"system":"sec-edgar","filing":"0001193125-26-094109","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1825659/000119312526094109/ownership.xml","form_type":"4"}},{"id":868017,"issuer":{"id":448,"kind":"organization","name":"Eastern Bankshares, Inc.","symbol":"EBC"},"owners":[{"id":1694,"kind":"person","name":"Henry Kathleen Cloherty","position":1,"cik":"0001825659","reported_name":"Henry Kathleen Cloherty","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive VP, General Counsel"}}],"security":"Restricted Stock Units","published_at":"2026-03-03T16:37:09.000Z","date":"2026-03-02","kind":"grant","planned":false,"acquired":true,"shares":7099,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted stock unit represents a contingent right to receive one share of EBC common stock on the applicable vesting date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F8","text":"On March 2, 2026, the reporting person was granted 7,099 restricted stock units that vest in three equal annual installments beginning March 2, 2027, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F8","text":"On March 2, 2026, the reporting person was granted 7,099 restricted stock units that vest in three equal annual installments beginning March 2, 2027, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date."}],"balance_after":7099,"derivative":{"underlying":"Common stock","underlying_shares":7099},"source":{"system":"sec-edgar","filing":"0001193125-26-088429","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1825659/000119312526088429/ownership.xml","form_type":"4"}},{"id":868016,"issuer":{"id":448,"kind":"organization","name":"Eastern Bankshares, Inc.","symbol":"EBC"},"owners":[{"id":1694,"kind":"person","name":"Henry Kathleen Cloherty","position":1,"cik":"0001825659","reported_name":"Henry Kathleen Cloherty","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive VP, General Counsel"}}],"security":"Restricted Stock Units","published_at":"2026-03-03T16:37:09.000Z","date":"2026-03-01","kind":"exercise","planned":false,"acquired":false,"shares":5496,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Restricted stock units convert into common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"On March 1, 2024, the reporting person was granted 16,490 restricted stock units that vest in three equal annual installments beginning March 1, 2025, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"On March 1, 2024, the reporting person was granted 16,490 restricted stock units that vest in three equal annual installments beginning March 1, 2025, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date."}],"balance_after":5498,"derivative":{"underlying":"Common stock","underlying_shares":5496},"source":{"system":"sec-edgar","filing":"0001193125-26-088429","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1825659/000119312526088429/ownership.xml","form_type":"4"}},{"id":868015,"issuer":{"id":448,"kind":"organization","name":"Eastern Bankshares, Inc.","symbol":"EBC"},"owners":[{"id":1694,"kind":"person","name":"Henry Kathleen Cloherty","position":1,"cik":"0001825659","reported_name":"Henry Kathleen Cloherty","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive VP, General Counsel"}}],"security":"Restricted Stock Units","published_at":"2026-03-03T16:37:09.000Z","date":"2026-03-01","kind":"exercise","planned":false,"acquired":false,"shares":1977,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Restricted stock units convert into common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On March 1, 2023, the reporting person was granted 5,930 restricted stock units that vest in three equal annual installments beginning March 1, 2024, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"On March 1, 2023, the reporting person was granted 5,930 restricted stock units that vest in three equal annual installments beginning March 1, 2024, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date."}],"balance_after":0,"derivative":{"underlying":"Common stock","underlying_shares":1977},"source":{"system":"sec-edgar","filing":"0001193125-26-088429","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1825659/000119312526088429/ownership.xml","form_type":"4"}},{"id":868014,"issuer":{"id":448,"kind":"organization","name":"Eastern Bankshares, Inc.","symbol":"EBC"},"owners":[{"id":1694,"kind":"person","name":"Henry Kathleen Cloherty","position":1,"cik":"0001825659","reported_name":"Henry Kathleen Cloherty","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive VP, General Counsel"}}],"security":"Restricted Stock Units","published_at":"2026-03-03T16:37:09.000Z","date":"2026-03-01","kind":"exercise","planned":false,"acquired":false,"shares":9488,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Restricted stock units convert into common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"On March 1, 2022, the reporting person was granted 47,438 restricted stock units that vest in five equal annual installments beginning March 1, 2023, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"On March 1, 2022, the reporting person was granted 47,438 restricted stock units that vest in five equal annual installments beginning March 1, 2023, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date."}],"balance_after":9488,"derivative":{"underlying":"Common stock","underlying_shares":9488},"source":{"system":"sec-edgar","filing":"0001193125-26-088429","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1825659/000119312526088429/ownership.xml","form_type":"4"}},{"id":868013,"issuer":{"id":448,"kind":"organization","name":"Eastern Bankshares, Inc.","symbol":"EBC"},"owners":[{"id":1694,"kind":"person","name":"Henry Kathleen Cloherty","position":1,"cik":"0001825659","reported_name":"Henry Kathleen Cloherty","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive VP, General Counsel"}}],"security":"Common Stock","published_at":"2026-03-03T16:37:09.000Z","date":"2026-03-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":2449,"price":19.56,"value":47902.44,"ownership":{"direct":true},"balance_after":38981,"source":{"system":"sec-edgar","filing":"0001193125-26-088429","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1825659/000119312526088429/ownership.xml","form_type":"4"}},{"id":868012,"issuer":{"id":448,"kind":"organization","name":"Eastern Bankshares, Inc.","symbol":"EBC"},"owners":[{"id":1694,"kind":"person","name":"Henry Kathleen Cloherty","position":1,"cik":"0001825659","reported_name":"Henry Kathleen Cloherty","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive VP, General Counsel"}}],"security":"Common Stock","published_at":"2026-03-03T16:37:09.000Z","date":"2026-03-01","kind":"grant","planned":false,"acquired":true,"shares":5520,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F9","text":"Represents shares of Eastern Bankshares, Inc. (the \"Company\") common stock, par value $0.01 per share (\"Common Stock\") received upon vesting of a performance restricted stock unit (\"PRSU\") award eligible to vest based upon the Company's performance on total shareholder return (\"TSR\") measured at the end of the three-year performance period of January 1, 2023 through December 31, 2025 (the \"Performance Period\") relative to TSR performance over that performance period of the banks listed on the KBW Nasdaq Regional Banking Index (the \"TSR Measure\").  The Compensation and Human Capital Management Committee determined that the Company's performance of the TSR Measure resulted in a payout of 93.1% of target."}],"balance_after":41430,"source":{"system":"sec-edgar","filing":"0001193125-26-088429","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1825659/000119312526088429/ownership.xml","form_type":"4"}},{"id":868011,"issuer":{"id":448,"kind":"organization","name":"Eastern Bankshares, Inc.","symbol":"EBC"},"owners":[{"id":1694,"kind":"person","name":"Henry Kathleen Cloherty","position":1,"cik":"0001825659","reported_name":"Henry Kathleen Cloherty","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive VP, General Counsel"}}],"security":"Common Stock","published_at":"2026-03-03T16:37:09.000Z","date":"2026-03-01","kind":"tax_withholding","planned":false,"acquired":false,"shares":7664,"price":19.56,"value":149907.84,"ownership":{"direct":true},"balance_after":35910,"source":{"system":"sec-edgar","filing":"0001193125-26-088429","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1825659/000119312526088429/ownership.xml","form_type":"4"}},{"id":868010,"issuer":{"id":448,"kind":"organization","name":"Eastern Bankshares, Inc.","symbol":"EBC"},"owners":[{"id":1694,"kind":"person","name":"Henry Kathleen Cloherty","position":1,"cik":"0001825659","reported_name":"Henry Kathleen Cloherty","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive VP, General Counsel"}}],"security":"Common Stock","published_at":"2026-03-03T16:37:09.000Z","date":"2026-03-01","kind":"exercise","planned":false,"acquired":true,"shares":16961,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Restricted stock units convert into common stock on a one-for-one basis."}],"balance_after":43574,"source":{"system":"sec-edgar","filing":"0001193125-26-088429","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1825659/000119312526088429/ownership.xml","form_type":"4"}},{"id":1052985,"issuer":{"id":448,"kind":"organization","name":"Eastern Bankshares, Inc.","symbol":"EBC"},"owners":[{"id":1694,"kind":"person","name":"Henry Kathleen Cloherty","position":1,"cik":"0001825659","reported_name":"Henry Kathleen Cloherty","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive VP, General Counsel"}}],"security":"Common Stock","published_at":"2025-08-29T10:05:17.000Z","date":"2025-08-27","kind":"purchase","planned":false,"acquired":true,"shares":5855,"price":17.07,"value":99944.85,"ownership":{"direct":false,"nature":"By 401(k)"},"footnotes":[{"field":"ownership.direct","element":"directOrIndirectOwnership","label":"F1","text":"Reflects the amount of shares beneficially owned, including shares received due to automatic dividend reinvestment, as of the date of this report."}],"balance_after":28219,"source":{"system":"sec-edgar","filing":"0001193125-25-192158","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1825659/000119312525192158/ownership.xml","form_type":"4"}},{"id":1222802,"issuer":{"id":448,"kind":"organization","name":"Eastern Bankshares, Inc.","symbol":"EBC"},"owners":[{"id":1694,"kind":"person","name":"Henry Kathleen Cloherty","position":1,"cik":"0001825659","reported_name":"Henry Kathleen Cloherty","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive VP, General Counsel"}}],"security":"Restricted Stock Units","published_at":"2025-03-05T18:24:37.000Z","date":"2025-03-03","kind":"grant","planned":false,"acquired":true,"shares":34697,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each restricted stock unit represents a contingent right to receive one share of EBC common stock on the applicable vesting date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"On March 3, 2025, the reporting person was granted 34,697 restricted stock units of which 6,497 vest in three equal annual installments beginning March 1, 2026 and 28,200 vest after 3 years, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"On March 3, 2025, the reporting person was granted 34,697 restricted stock units of which 6,497 vest in three equal annual installments beginning March 1, 2026 and 28,200 vest after 3 years, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date."}],"balance_after":34697,"derivative":{"underlying":"Common stock","underlying_shares":34697},"source":{"system":"sec-edgar","filing":"0000950170-25-033958","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1825659/000095017025033958/ownership.xml","form_type":"4"}},{"id":1222801,"issuer":{"id":448,"kind":"organization","name":"Eastern Bankshares, Inc.","symbol":"EBC"},"owners":[{"id":1694,"kind":"person","name":"Henry Kathleen Cloherty","position":1,"cik":"0001825659","reported_name":"Henry Kathleen Cloherty","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive VP, General Counsel"}}],"security":"Restricted Stock Units","published_at":"2025-03-05T18:24:37.000Z","date":"2025-03-03","kind":"exercise","planned":false,"acquired":false,"shares":5495,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Restricted stock units convert into common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"On March 1, 2024, the reporting person was granted 16,490 restricted stock units that vest in three equal annual installments beginning March 1, 2025, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"On March 1, 2024, the reporting person was granted 16,490 restricted stock units that vest in three equal annual installments beginning March 1, 2025, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date."}],"balance_after":10994,"derivative":{"underlying":"Common stock","underlying_shares":5495},"source":{"system":"sec-edgar","filing":"0000950170-25-033958","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1825659/000095017025033958/ownership.xml","form_type":"4"}},{"id":1222800,"issuer":{"id":448,"kind":"organization","name":"Eastern Bankshares, Inc.","symbol":"EBC"},"owners":[{"id":1694,"kind":"person","name":"Henry Kathleen Cloherty","position":1,"cik":"0001825659","reported_name":"Henry Kathleen Cloherty","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Executive VP, General Counsel"}}],"security":"Restricted Stock Units","published_at":"2025-03-05T18:24:37.000Z","date":"2025-03-03","kind":"exercise","planned":false,"acquired":false,"shares":1977,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Restricted stock units convert into common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On March 1, 2023, the reporting person was granted 5,930 restricted stock units that vest in three equal annual installments beginning March 1, 2024, subject to continued service. Vested shares will be issued to the reporting person as soon as practicable after the vesting date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"On March 1, 2023, the reporting person was granted 5,930 restricted stock units that vest in three equal annual installments beginning March 1, 2024, subject to continued service. 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