{"transactions":[{"id":808855,"issuer":{"id":5359,"kind":"organization","name":"FIRST BUSINESS FINANCIAL SERVICES, INC."},"owners":[{"id":52550,"kind":"person","name":"Quade Bradley A","position":1,"cik":"0001807243","reported_name":"Quade Bradley A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Credit Officer"}}],"security":"Common Stock","published_at":"2026-04-14T20:24:44.000Z","date":"2026-04-10","kind":"tax_withholding","planned":false,"acquired":false,"shares":1096,"price":58.6,"value":64225.6,"ownership":{"direct":true},"balance_after":16582,"source":{"system":"sec-edgar","filing":"0000892712-26-000215","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1807243/000089271226000215/form4.xml","form_type":"4"}},{"id":808854,"issuer":{"id":5359,"kind":"organization","name":"FIRST BUSINESS FINANCIAL SERVICES, INC."},"owners":[{"id":52550,"kind":"person","name":"Quade Bradley A","position":1,"cik":"0001807243","reported_name":"Quade Bradley A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Credit Officer"}}],"security":"Common Stock","published_at":"2026-04-14T20:24:44.000Z","date":"2026-04-10","kind":"grant","planned":false,"acquired":true,"shares":2740,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Issuance of Common Stock upon vesting of Performance Restricted Stock Unit awards for the performance period 2023-2025."}],"balance_after":17678,"source":{"system":"sec-edgar","filing":"0000892712-26-000215","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1807243/000089271226000215/form4.xml","form_type":"4"}},{"id":897029,"issuer":{"id":5359,"kind":"organization","name":"FIRST BUSINESS FINANCIAL SERVICES, INC."},"owners":[{"id":52550,"kind":"person","name":"Quade Bradley A","position":1,"cik":"0001807243","reported_name":"Quade Bradley A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Credit Officer"}}],"security":"Common Stock","published_at":"2026-02-18T21:24:13.000Z","date":"2026-02-16","kind":"tax_withholding","planned":false,"acquired":false,"shares":420,"price":58.36,"value":24511.2,"ownership":{"direct":true},"balance_after":14938,"source":{"system":"sec-edgar","filing":"0000892712-26-000124","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1807243/000089271226000124/form4.xml","form_type":"4"}},{"id":897028,"issuer":{"id":5359,"kind":"organization","name":"FIRST BUSINESS FINANCIAL SERVICES, INC."},"owners":[{"id":52550,"kind":"person","name":"Quade Bradley A","position":1,"cik":"0001807243","reported_name":"Quade Bradley A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Credit Officer"}}],"security":"Common Stock","published_at":"2026-02-18T21:24:13.000Z","date":"2026-02-16","kind":"grant","planned":false,"acquired":true,"shares":735,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":15358,"source":{"system":"sec-edgar","filing":"0000892712-26-000124","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1807243/000089271226000124/form4.xml","form_type":"4"}},{"id":1171873,"issuer":{"id":5359,"kind":"organization","name":"FIRST BUSINESS FINANCIAL SERVICES, INC."},"owners":[{"id":52550,"kind":"person","name":"Quade Bradley A","position":1,"cik":"0001807243","reported_name":"Quade Bradley A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Credit Officer"}}],"security":"Common Stock","published_at":"2025-04-15T20:50:39.000Z","date":"2025-04-11","kind":"tax_withholding","planned":false,"acquired":false,"shares":1109,"price":45.04,"value":49949.36,"ownership":{"direct":true},"balance_after":14623,"source":{"system":"sec-edgar","filing":"0001062993-25-007526","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1807243/000106299325007526/form4.xml","form_type":"4"}},{"id":1171872,"issuer":{"id":5359,"kind":"organization","name":"FIRST BUSINESS FINANCIAL SERVICES, INC."},"owners":[{"id":52550,"kind":"person","name":"Quade Bradley A","position":1,"cik":"0001807243","reported_name":"Quade Bradley A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Credit Officer"}}],"security":"Common Stock","published_at":"2025-04-15T20:50:39.000Z","date":"2025-04-11","kind":"grant","planned":false,"acquired":true,"shares":2770,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Issuance of Common Stock upon vesting of Performance Restricted Stock Unit awards for the performance period 2022-2024."}],"balance_after":15732,"source":{"system":"sec-edgar","filing":"0001062993-25-007526","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1807243/000106299325007526/form4.xml","form_type":"4"}},{"id":1260267,"issuer":{"id":5359,"kind":"organization","name":"FIRST BUSINESS FINANCIAL SERVICES, INC."},"owners":[{"id":52550,"kind":"person","name":"Quade Bradley A","position":1,"cik":"0001807243","reported_name":"Quade Bradley A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Credit Officer"}}],"security":"Common Stock","published_at":"2025-02-19T22:05:25.000Z","date":"2025-02-16","kind":"tax_withholding","planned":false,"acquired":false,"shares":452,"price":52.76,"value":23847.52,"ownership":{"direct":true},"balance_after":12962,"source":{"system":"sec-edgar","filing":"0001062993-25-002874","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1807243/000106299325002874/form4.xml","form_type":"4"}},{"id":1260266,"issuer":{"id":5359,"kind":"organization","name":"FIRST BUSINESS FINANCIAL SERVICES, INC."},"owners":[{"id":52550,"kind":"person","name":"Quade Bradley A","position":1,"cik":"0001807243","reported_name":"Quade Bradley A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Credit Officer"}}],"security":"Common Stock","published_at":"2025-02-19T22:05:25.000Z","date":"2025-02-16","kind":"grant","planned":false,"acquired":true,"shares":800,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":13414,"source":{"system":"sec-edgar","filing":"0001062993-25-002874","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1807243/000106299325002874/form4.xml","form_type":"4"}},{"id":1536912,"issuer":{"id":5359,"kind":"organization","name":"FIRST BUSINESS FINANCIAL SERVICES, INC."},"owners":[{"id":52550,"kind":"person","name":"Quade Bradley A","position":1,"cik":"0001807243","reported_name":"Quade Bradley A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Credit Officer"}}],"security":"Common Stock","published_at":"2024-04-23T20:46:19.000Z","date":"2024-04-19","kind":"tax_withholding","planned":false,"acquired":false,"shares":1696,"price":34.3,"value":58172.8,"ownership":{"direct":true},"balance_after":12614,"source":{"system":"sec-edgar","filing":"0001062993-24-008714","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1807243/000106299324008714/form4.xml","form_type":"4"}},{"id":1536911,"issuer":{"id":5359,"kind":"organization","name":"FIRST BUSINESS FINANCIAL SERVICES, INC."},"owners":[{"id":52550,"kind":"person","name":"Quade Bradley A","position":1,"cik":"0001807243","reported_name":"Quade Bradley A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Credit Officer"}}],"security":"Common Stock","published_at":"2024-04-23T20:46:19.000Z","date":"2024-04-19","kind":"grant","planned":false,"acquired":true,"shares":4240,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Issuance of Common Stock upon vesting of Performance Restricted Stock Unit awards for the performance period 2021-2023."}],"balance_after":14310,"source":{"system":"sec-edgar","filing":"0001062993-24-008714","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1807243/000106299324008714/form4.xml","form_type":"4"}},{"id":1629527,"issuer":{"id":5359,"kind":"organization","name":"FIRST BUSINESS FINANCIAL SERVICES, INC."},"owners":[{"id":52550,"kind":"person","name":"Quade Bradley A","position":1,"cik":"0001807243","reported_name":"Quade Bradley A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Credit Officer"}}],"security":"Common Stock","published_at":"2024-02-21T21:31:58.000Z","date":"2024-02-16","kind":"tax_withholding","planned":false,"acquired":false,"shares":530,"price":36.06,"value":19111.8,"ownership":{"direct":true},"balance_after":10070,"source":{"system":"sec-edgar","filing":"0001062993-24-003924","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1807243/000106299324003924/form4.xml","form_type":"4"}},{"id":1629526,"issuer":{"id":5359,"kind":"organization","name":"FIRST BUSINESS FINANCIAL SERVICES, INC."},"owners":[{"id":52550,"kind":"person","name":"Quade Bradley A","position":1,"cik":"0001807243","reported_name":"Quade Bradley A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Credit Officer"}}],"security":"Common Stock","published_at":"2024-02-21T21:31:58.000Z","date":"2024-02-16","kind":"grant","planned":false,"acquired":true,"shares":990,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":10600,"source":{"system":"sec-edgar","filing":"0001062993-24-003924","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1807243/000106299324003924/form4.xml","form_type":"4"}},{"id":1917288,"issuer":{"id":5359,"kind":"organization","name":"FIRST BUSINESS FINANCIAL SERVICES, INC."},"owners":[{"id":52550,"kind":"person","name":"Quade Bradley A","position":1,"cik":"0001807243","reported_name":"Quade Bradley A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Credit Officer"}}],"security":"Common Stock","published_at":"2023-04-19T20:44:04.000Z","date":"2023-04-17","kind":"tax_withholding","planned":false,"acquired":false,"shares":1044,"price":29.13,"value":30411.72,"ownership":{"direct":true},"balance_after":9610,"source":{"system":"sec-edgar","filing":"0001062993-23-009343","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1807243/000106299323009343/form4.xml","form_type":"4"}},{"id":1917287,"issuer":{"id":5359,"kind":"organization","name":"FIRST BUSINESS FINANCIAL SERVICES, INC."},"owners":[{"id":52550,"kind":"person","name":"Quade Bradley A","position":1,"cik":"0001807243","reported_name":"Quade Bradley A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Credit Officer"}}],"security":"Common Stock","published_at":"2023-04-19T20:44:04.000Z","date":"2023-04-17","kind":"grant","planned":false,"acquired":true,"shares":3260,"price":29.13,"value":94963.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Issuance of Common Stock upon vesting of Performance Restricted Stock Unit awards for the performance period 2020-2022."}],"balance_after":10654,"source":{"system":"sec-edgar","filing":"0001062993-23-009343","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1807243/000106299323009343/form4.xml","form_type":"4"}},{"id":2003764,"issuer":{"id":5359,"kind":"organization","name":"FIRST BUSINESS FINANCIAL SERVICES, INC."},"owners":[{"id":52550,"kind":"person","name":"Quade Bradley A","position":1,"cik":"0001807243","reported_name":"Quade Bradley A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Credit Officer"}}],"security":"Common Stock","published_at":"2023-02-21T21:31:45.000Z","date":"2023-02-16","kind":"tax_withholding","acquired":false,"shares":444,"price":36.42,"value":16170.48,"ownership":{"direct":true},"balance_after":7394,"source":{"system":"sec-edgar","filing":"0001062993-23-004250","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1807243/000106299323004250/form4.xml","form_type":"4"}},{"id":2003763,"issuer":{"id":5359,"kind":"organization","name":"FIRST BUSINESS FINANCIAL SERVICES, INC."},"owners":[{"id":52550,"kind":"person","name":"Quade Bradley A","position":1,"cik":"0001807243","reported_name":"Quade Bradley A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Credit Officer"}}],"security":"Common Stock","published_at":"2023-02-21T21:31:45.000Z","date":"2023-02-16","kind":"grant","acquired":true,"shares":980,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":7838,"source":{"system":"sec-edgar","filing":"0001062993-23-004250","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1807243/000106299323004250/form4.xml","form_type":"4"}},{"id":2110497,"issuer":{"id":5359,"kind":"organization","name":"FIRST BUSINESS FINANCIAL SERVICES, INC."},"owners":[{"id":52550,"kind":"person","name":"Quade Bradley A","position":1,"cik":"0001807243","reported_name":"Quade Bradley A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Credit Officer"}}],"security":"Common Stock","published_at":"2022-11-18T21:35:24.000Z","date":"2022-11-16","kind":"tax_withholding","acquired":false,"shares":551,"price":38.91,"value":21439.41,"ownership":{"direct":true},"balance_after":6858,"source":{"system":"sec-edgar","filing":"0001062993-22-022493","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1807243/000106299322022493/form4.xml","form_type":"4"}},{"id":2385662,"issuer":{"id":5359,"kind":"organization","name":"FIRST BUSINESS FINANCIAL SERVICES, INC."},"owners":[{"id":52550,"kind":"person","name":"Quade Bradley A","position":1,"cik":"0001807243","reported_name":"Quade Bradley A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Credit Officer"}}],"security":"Common Stock","published_at":"2022-02-18T21:34:20.000Z","date":"2022-02-16","kind":"tax_withholding","acquired":false,"shares":324,"price":33.6,"value":10886.4,"ownership":{"direct":true},"balance_after":7409,"source":{"system":"sec-edgar","filing":"0001062993-22-004963","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1807243/000106299322004963/form4.xml","form_type":"4"}},{"id":2385661,"issuer":{"id":5359,"kind":"organization","name":"FIRST BUSINESS FINANCIAL SERVICES, INC."},"owners":[{"id":52550,"kind":"person","name":"Quade Bradley A","position":1,"cik":"0001807243","reported_name":"Quade Bradley A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Credit Officer"}}],"security":"Common Stock","published_at":"2022-02-18T21:34:20.000Z","date":"2022-02-16","kind":"grant","acquired":true,"shares":990,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":7733,"source":{"system":"sec-edgar","filing":"0001062993-22-004963","document":"form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1807243/000106299322004963/form4.xml","form_type":"4"}},{"id":2505027,"issuer":{"id":5359,"kind":"organization","name":"FIRST BUSINESS FINANCIAL SERVICES, INC."},"owners":[{"id":52550,"kind":"person","name":"Quade Bradley A","position":1,"cik":"0001807243","reported_name":"Quade Bradley A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Credit Officer"}}],"security":"Common Stock","published_at":"2021-11-18T22:07:24.000Z","date":"2021-11-16","kind":"tax_withholding","acquired":false,"shares":550,"price":30.65,"value":16857.5,"ownership":{"direct":true},"balance_after":6743,"source":{"system":"sec-edgar","filing":"0000892712-21-000344","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1807243/000089271221000344/edgar.xml","form_type":"4"}},{"id":2850674,"issuer":{"id":5359,"kind":"organization","name":"FIRST BUSINESS FINANCIAL SERVICES, INC."},"owners":[{"id":52550,"kind":"person","name":"Quade Bradley A","position":1,"cik":"0001807243","reported_name":"Quade Bradley A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Credit Officer"}}],"security":"Common Stock","published_at":"2021-02-18T21:30:51.000Z","date":"2021-02-16","kind":"tax_withholding","acquired":false,"shares":142,"price":21.68,"value":3078.56,"ownership":{"direct":true},"balance_after":7263,"source":{"system":"sec-edgar","filing":"0000892712-21-000087","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1807243/000089271221000087/edgar.xml","form_type":"4"}},{"id":2850673,"issuer":{"id":5359,"kind":"organization","name":"FIRST BUSINESS FINANCIAL SERVICES, INC."},"owners":[{"id":52550,"kind":"person","name":"Quade Bradley A","position":1,"cik":"0001807243","reported_name":"Quade Bradley A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Credit Officer"}}],"security":"Common Stock","published_at":"2021-02-18T21:30:51.000Z","date":"2021-02-16","kind":"grant","acquired":true,"shares":1515,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":7405,"source":{"system":"sec-edgar","filing":"0000892712-21-000087","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1807243/000089271221000087/edgar.xml","form_type":"4"}},{"id":2975508,"issuer":{"id":5359,"kind":"organization","name":"FIRST BUSINESS FINANCIAL SERVICES, INC."},"owners":[{"id":52550,"kind":"person","name":"Quade Bradley A","position":1,"cik":"0001807243","reported_name":"Quade Bradley A","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Credit Officer"}}],"security":"Common Stock","published_at":"2020-11-18T21:10:15.000Z","date":"2020-11-16","kind":"tax_withholding","acquired":false,"shares":550,"price":19.57,"value":10763.5,"ownership":{"direct":true},"balance_after":5890,"source":{"system":"sec-edgar","filing":"0000892712-20-000340","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1807243/000089271220000340/edgar.xml","form_type":"4"}}]}