{"transactions":[{"id":4614946,"issuer":{"id":3952,"kind":"organization","name":"FIRST FINANCIAL BANKSHARES INC","symbol":"FFIN"},"owners":[{"id":22674,"kind":"person","name":"Longhofer T. Luke","position":1,"cik":"0001679051","reported_name":"Longhofer T. 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The reporting person is therefore reporting the disposition of 714  restricted stock units in exchange for an equal number of deferred stock units under the SERP, which are payable upon the reporting person's termination."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"In connection with the vesting on August 16, 2026, of 714 restricted stock units previously granted to the reporting person, the reporting person's receipt of 714 shares of common stock was deferred resulting in the reporting person's receipt instead of 714 shares of deferred stock units into the First Financial Bankshares, Inc. Supplemental Executive Retirement Plan, as amended and restated effected July 26, 2022 (the \"SERP\"). The reporting person is therefore reporting the disposition of 714  restricted stock units in exchange for an equal number of deferred stock units under the SERP, which are payable upon the reporting person's termination."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"In connection with the vesting on August 16, 2026, of 714 restricted stock units previously granted to the reporting person, the reporting person's receipt of 714 shares of common stock was deferred resulting in the reporting person's receipt instead of 714 shares of deferred stock units into the First Financial Bankshares, Inc. Supplemental Executive Retirement Plan, as amended and restated effected July 26, 2022 (the \"SERP\"). The reporting person is therefore reporting the disposition of 714  restricted stock units in exchange for an equal number of deferred stock units under the SERP, which are payable upon the reporting person's termination."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"In connection with the vesting on August 16, 2026, of 714 restricted stock units previously granted to the reporting person, the reporting person's receipt of 714 shares of common stock was deferred resulting in the reporting person's receipt instead of 714 shares of deferred stock units into the First Financial Bankshares, Inc. Supplemental Executive Retirement Plan, as amended and restated effected July 26, 2022 (the \"SERP\"). The reporting person is therefore reporting the disposition of 714  restricted stock units in exchange for an equal number of deferred stock units under the SERP, which are payable upon the reporting person's termination."}],"balance_after":10294,"derivative":{"underlying":"Common Stock","underlying_shares":714},"source":{"system":"sec-edgar","filing":"0001193125-26-355701","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/36029/000119312526355701/ownership.xml","form_type":"4"}},{"id":684933,"issuer":{"id":3952,"kind":"organization","name":"FIRST FINANCIAL BANKSHARES INC","symbol":"FFIN"},"owners":[{"id":22674,"kind":"person","name":"Longhofer T. Luke","position":1,"cik":"0001679051","reported_name":"Longhofer T. 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The reporting person is therefore reporting the disposition of 1,519 restricted stock units in exchange for an equal number of deferred stock units under the SERP, which are payable upon the reporting person's termination."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"In connection with the vesting on August 14, 2026, of 1,519 restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,519 shares of common stock was deferred resulting in the reporting person's receipt instead of 1,519 shares of deferred stock units into the First Financial Bankshares, Inc. Supplemental Executive Retirement Plan, as amended and restated effected July 26, 2022 (the \"SERP\"). The reporting person is therefore reporting the disposition of 1,519 restricted stock units in exchange for an equal number of deferred stock units under the SERP, which are payable upon the reporting person's termination."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"In connection with the vesting on August 14, 2026, of 1,519 restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,519 shares of common stock was deferred resulting in the reporting person's receipt instead of 1,519 shares of deferred stock units into the First Financial Bankshares, Inc. Supplemental Executive Retirement Plan, as amended and restated effected July 26, 2022 (the \"SERP\"). The reporting person is therefore reporting the disposition of 1,519 restricted stock units in exchange for an equal number of deferred stock units under the SERP, which are payable upon the reporting person's termination."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"In connection with the vesting on August 14, 2026, of 1,519 restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,519 shares of common stock was deferred resulting in the reporting person's receipt instead of 1,519 shares of deferred stock units into the First Financial Bankshares, Inc. Supplemental Executive Retirement Plan, as amended and restated effected July 26, 2022 (the \"SERP\"). 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The reporting person is therefore reporting the disposition of 714  restricted stock units in exchange for an equal number of deferred stock units under the SERP, which are payable upon the reporting person's termination."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"In connection with the vesting on August 16, 2026, of 714 restricted stock units previously granted to the reporting person, the reporting person's receipt of 714 shares of common stock was deferred resulting in the reporting person's receipt instead of 714 shares of deferred stock units into the First Financial Bankshares, Inc. Supplemental Executive Retirement Plan, as amended and restated effected July 26, 2022 (the \"SERP\"). The reporting person is therefore reporting the disposition of 714  restricted stock units in exchange for an equal number of deferred stock units under the SERP, which are payable upon the reporting person's termination."}],"balance_after":41798,"source":{"system":"sec-edgar","filing":"0001193125-26-355701","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/36029/000119312526355701/ownership.xml","form_type":"4"}},{"id":684930,"issuer":{"id":3952,"kind":"organization","name":"FIRST FINANCIAL BANKSHARES INC","symbol":"FFIN"},"owners":[{"id":22674,"kind":"person","name":"Longhofer T. Luke","position":1,"cik":"0001679051","reported_name":"Longhofer T. 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The reporting person is therefore reporting the disposition of 1,519 restricted stock units in exchange for an equal number of deferred stock units under the SERP, which are payable upon the reporting person's termination."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"In connection with the vesting on August 14, 2026, of 1,519 restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,519 shares of common stock was deferred resulting in the reporting person's receipt instead of 1,519 shares of deferred stock units into the First Financial Bankshares, Inc. Supplemental Executive Retirement Plan, as amended and restated effected July 26, 2022 (the \"SERP\"). The reporting person is therefore reporting the disposition of 1,519 restricted stock units in exchange for an equal number of deferred stock units under the SERP, which are payable upon the reporting person's termination."}],"balance_after":42512,"source":{"system":"sec-edgar","filing":"0001193125-26-355701","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/36029/000119312526355701/ownership.xml","form_type":"4"}},{"id":684929,"issuer":{"id":3952,"kind":"organization","name":"FIRST FINANCIAL BANKSHARES INC","symbol":"FFIN"},"owners":[{"id":22674,"kind":"person","name":"Longhofer T. Luke","position":1,"cik":"0001679051","reported_name":"Longhofer T. 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Mr. Longhofer is therefore reporting the disposition of 3,216 performance stock units in exchange for an equal number of shares of deferred stock units under the SERP, which are payable upon Mr. Longhofer's termination of employment."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"In connection with the vesting of performance stock units previously granted on August 16, 2023, Mr. Longhofer's receipt of 3,216 shares of common stock was deferred resulting in Mr. Longhofer's receipt instead of 3,216 shares of deferred stock units into the First Financial Bankshares, Inc. Supplemental Executive Retirement Plan, as amended and restated effective July 26, 2022 (the \"SERP\"). Mr. Longhofer is therefore reporting the disposition of 3,216 performance stock units in exchange for an equal number of shares of deferred stock units under the SERP, which are payable upon Mr. Longhofer's termination of employment."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"In connection with the vesting of performance stock units previously granted on August 16, 2023, Mr. Longhofer's receipt of 3,216 shares of common stock was deferred resulting in Mr. Longhofer's receipt instead of 3,216 shares of deferred stock units into the First Financial Bankshares, Inc. Supplemental Executive Retirement Plan, as amended and restated effective July 26, 2022 (the \"SERP\"). Mr. Longhofer is therefore reporting the disposition of 3,216 performance stock units in exchange for an equal number of shares of deferred stock units under the SERP, which are payable upon Mr. Longhofer's termination of employment."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"In connection with the vesting of performance stock units previously granted on August 16, 2023, Mr. Longhofer's receipt of 3,216 shares of common stock was deferred resulting in Mr. Longhofer's receipt instead of 3,216 shares of deferred stock units into the First Financial Bankshares, Inc. Supplemental Executive Retirement Plan, as amended and restated effective July 26, 2022 (the \"SERP\"). Mr. Longhofer is therefore reporting the disposition of 3,216 performance stock units in exchange for an equal number of shares of deferred stock units under the SERP, which are payable upon Mr. Longhofer's termination of employment."}],"balance_after":8061,"derivative":{"underlying":"Common Stock","underlying_shares":3216},"source":{"system":"sec-edgar","filing":"0001193125-26-111102","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/36029/000119312526111102/ownership.xml","form_type":"4"}},{"id":840730,"issuer":{"id":3952,"kind":"organization","name":"FIRST FINANCIAL BANKSHARES INC","symbol":"FFIN"},"owners":[{"id":22674,"kind":"person","name":"Longhofer T. Luke","position":1,"cik":"0001679051","reported_name":"Longhofer T. 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Mr. Longhofer is therefore reporting the disposition of 3,216 performance stock units in exchange for an equal number of shares of deferred stock units under the SERP, which are payable upon Mr. Longhofer's termination of employment."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"In connection with the vesting of performance stock units previously granted on August 16, 2023, Mr. Longhofer's receipt of 3,216 shares of common stock was deferred resulting in Mr. Longhofer's receipt instead of 3,216 shares of deferred stock units into the First Financial Bankshares, Inc. Supplemental Executive Retirement Plan, as amended and restated effective July 26, 2022 (the \"SERP\"). Mr. Longhofer is therefore reporting the disposition of 3,216 performance stock units in exchange for an equal number of shares of deferred stock units under the SERP, which are payable upon Mr. Longhofer's termination of employment."}],"balance_after":40970,"source":{"system":"sec-edgar","filing":"0001193125-26-111102","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/36029/000119312526111102/ownership.xml","form_type":"4"}},{"id":840729,"issuer":{"id":3952,"kind":"organization","name":"FIRST FINANCIAL BANKSHARES INC","symbol":"FFIN"},"owners":[{"id":22674,"kind":"person","name":"Longhofer T. Luke","position":1,"cik":"0001679051","reported_name":"Longhofer T. 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The reporting person is therefore reporting the disposition of 1,077  restricted stock units in exchange for an equal number of deferred stock units under the SERP, which are payable upon the reporting person's termination."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"In connection with the vesting on August 16, 2025, of 1,077 restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,077 shares of common stock was deferred resulting in the reporting person's receipt instead of 1,077 shares of deferred stock units into the First Financial Bankshares, Inc. Supplemental Executive Retirement Plan, as amended and restated effected July 26, 2022 (the \"SERP\"). The reporting person is therefore reporting the disposition of 1,077  restricted stock units in exchange for an equal number of deferred stock units under the SERP, which are payable upon the reporting person's termination."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"In connection with the vesting on August 16, 2025, of 1,077 restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,077 shares of common stock was deferred resulting in the reporting person's receipt instead of 1,077 shares of deferred stock units into the First Financial Bankshares, Inc. Supplemental Executive Retirement Plan, as amended and restated effected July 26, 2022 (the \"SERP\"). The reporting person is therefore reporting the disposition of 1,077  restricted stock units in exchange for an equal number of deferred stock units under the SERP, which are payable upon the reporting person's termination."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"In connection with the vesting on August 16, 2025, of 1,077 restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,077 shares of common stock was deferred resulting in the reporting person's receipt instead of 1,077 shares of deferred stock units into the First Financial Bankshares, Inc. Supplemental Executive Retirement Plan, as amended and restated effected July 26, 2022 (the \"SERP\"). The reporting person is therefore reporting the disposition of 1,077  restricted stock units in exchange for an equal number of deferred stock units under the SERP, which are payable upon the reporting person's termination."}],"balance_after":4845,"derivative":{"underlying":"Common Stock","underlying_shares":1077},"source":{"system":"sec-edgar","filing":"0000950170-25-110061","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/36029/000095017025110061/ownership.xml","form_type":"4"}},{"id":1063353,"issuer":{"id":3952,"kind":"organization","name":"FIRST FINANCIAL BANKSHARES INC","symbol":"FFIN"},"owners":[{"id":22674,"kind":"person","name":"Longhofer T. Luke","position":1,"cik":"0001679051","reported_name":"Longhofer T. 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The reporting person is therefore reporting the disposition of 1,077  restricted stock units in exchange for an equal number of deferred stock units under the SERP, which are payable upon the reporting person's termination."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"In connection with the vesting on August 16, 2025, of 1,077 restricted stock units previously granted to the reporting person, the reporting person's receipt of 1,077 shares of common stock was deferred resulting in the reporting person's receipt instead of 1,077 shares of deferred stock units into the First Financial Bankshares, Inc. Supplemental Executive Retirement Plan, as amended and restated effected July 26, 2022 (the \"SERP\"). The reporting person is therefore reporting the disposition of 1,077  restricted stock units in exchange for an equal number of deferred stock units under the SERP, which are payable upon the reporting person's termination."}],"balance_after":38830,"source":{"system":"sec-edgar","filing":"0000950170-25-110061","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/36029/000095017025110061/ownership.xml","form_type":"4"}},{"id":1064865,"issuer":{"id":3952,"kind":"organization","name":"FIRST FINANCIAL BANKSHARES INC","symbol":"FFIN"},"owners":[{"id":22674,"kind":"person","name":"Longhofer T. Luke","position":1,"cik":"0001679051","reported_name":"Longhofer T. 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The reporting person is therefore reporting the disposition of 695  restricted stock units in exchange for an equal number of deferred stock units under the SERP, which are payable upon the reporting person's termination."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"In connection with the vesting on August 14, 2025, of 695 restricted stock units previously granted to the reporting person, the reporting person's receipt of 695 shares of common stock was deferred resulting in the reporting person's receipt instead of 695 shares of deferred stock units into the First Financial Bankshares, Inc. Supplemental Executive Retirement Plan, as amended and restated effected July 26, 2022 (the \"SERP\"). The reporting person is therefore reporting the disposition of 695  restricted stock units in exchange for an equal number of deferred stock units under the SERP, which are payable upon the reporting person's termination."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"In connection with the vesting on August 14, 2025, of 695 restricted stock units previously granted to the reporting person, the reporting person's receipt of 695 shares of common stock was deferred resulting in the reporting person's receipt instead of 695 shares of deferred stock units into the First Financial Bankshares, Inc. Supplemental Executive Retirement Plan, as amended and restated effected July 26, 2022 (the \"SERP\"). The reporting person is therefore reporting the disposition of 695  restricted stock units in exchange for an equal number of deferred stock units under the SERP, which are payable upon the reporting person's termination."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"In connection with the vesting on August 14, 2025, of 695 restricted stock units previously granted to the reporting person, the reporting person's receipt of 695 shares of common stock was deferred resulting in the reporting person's receipt instead of 695 shares of deferred stock units into the First Financial Bankshares, Inc. Supplemental Executive Retirement Plan, as amended and restated effected July 26, 2022 (the \"SERP\"). The reporting person is therefore reporting the disposition of 695  restricted stock units in exchange for an equal number of deferred stock units under the SERP, which are payable upon the reporting person's termination."}],"balance_after":3768,"derivative":{"underlying":"Common Stock","underlying_shares":695},"source":{"system":"sec-edgar","filing":"0000950170-25-109648","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/36029/000095017025109648/ownership.xml","form_type":"4"}},{"id":1064864,"issuer":{"id":3952,"kind":"organization","name":"FIRST FINANCIAL BANKSHARES INC","symbol":"FFIN"},"owners":[{"id":22674,"kind":"person","name":"Longhofer T. Luke","position":1,"cik":"0001679051","reported_name":"Longhofer T. 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The reporting person is therefore reporting the disposition of 695  restricted stock units in exchange for an equal number of deferred stock units under the SERP, which are payable upon the reporting person's termination."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"In connection with the vesting on August 14, 2025, of 695 restricted stock units previously granted to the reporting person, the reporting person's receipt of 695 shares of common stock was deferred resulting in the reporting person's receipt instead of 695 shares of deferred stock units into the First Financial Bankshares, Inc. Supplemental Executive Retirement Plan, as amended and restated effected July 26, 2022 (the \"SERP\"). 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