{"transactions":[{"id":4633171,"issuer":{"id":3524,"kind":"organization","name":"WINTRUST FINANCIAL CORP"},"owners":[{"id":33274,"kind":"person","name":"RICHTER DAVID S","position":1,"cik":"0001106469","reported_name":"RICHTER DAVID S","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-09-30T20:09:39.000Z","date":"2026-09-30","kind":"grant","planned":false,"acquired":true,"shares":394,"price":160.72,"value":63323.68,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares earned for the third quarter of 2026 for services as a Director of the Company in accordance with the Director's Deferred Fee and Stock Plan approved by the Shareholders."}],"balance_after":2041,"source":{"system":"sec-edgar","filing":"0001106469-26-000008","document":"wk-form4_1790798976.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1106469/000110646926000008/wk-form4_1790798976.xml","form_type":"4"}},{"id":719353,"issuer":{"id":3524,"kind":"organization","name":"WINTRUST FINANCIAL CORP"},"owners":[{"id":33274,"kind":"person","name":"RICHTER DAVID S","position":1,"cik":"0001106469","reported_name":"RICHTER DAVID S","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-07-02T20:09:33.000Z","date":"2026-06-30","kind":"grant","planned":false,"acquired":true,"shares":424,"price":138.94,"value":58910.56,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares earned for the second quarter of 2026 for services as a Director of the Company in accordance with the Director's Deferred Fee and Stock Plan approved by the Shareholders."}],"balance_after":1647,"source":{"system":"sec-edgar","filing":"0001106469-26-000005","document":"wk-form4_1783022962.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1106469/000110646926000005/wk-form4_1783022962.xml","form_type":"4"}},{"id":823429,"issuer":{"id":3524,"kind":"organization","name":"WINTRUST FINANCIAL CORP"},"owners":[{"id":33274,"kind":"person","name":"RICHTER DAVID S","position":1,"cik":"0001106469","reported_name":"RICHTER DAVID S","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-04-01T20:34:22.000Z","date":"2026-03-31","kind":"grant","planned":false,"acquired":true,"shares":405,"price":139.82,"value":56627.1,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares earned for the first quarter of 2026 for services as a Director of the Company in accordance with the Director's Deferred Fee and Stock Plan approved by the Shareholders."}],"balance_after":1223,"source":{"system":"sec-edgar","filing":"0001106469-26-000003","document":"wk-form4_1775075659.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1106469/000110646926000003/wk-form4_1775075659.xml","form_type":"4"}},{"id":955698,"issuer":{"id":3524,"kind":"organization","name":"WINTRUST FINANCIAL CORP"},"owners":[{"id":33274,"kind":"person","name":"RICHTER DAVID S","position":1,"cik":"0001106469","reported_name":"RICHTER DAVID S","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-01-02T21:14:17.000Z","date":"2025-12-31","kind":"grant","planned":false,"acquired":true,"shares":352,"price":132.44,"value":46618.88,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares earned for the fourth quarter of 2025 for services as a Director of the Company in accordance with the Director's Deferred Fee and Stock Plan approved by the Shareholders."}],"balance_after":818,"source":{"system":"sec-edgar","filing":"0001106469-26-000001","document":"wk-form4_1767388455.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1106469/000110646926000001/wk-form4_1767388455.xml","form_type":"4"}}]}