{"cik":"0001015328","ticker":"WTFC","name":"WINTRUST FINANCIAL CORP","sic_code":"6022","sic_description":"State Commercial Banks","exchange":"Nasdaq","state_of_incorporation":"IL","fiscal_year_end":"1231","first_filing_date":"2026-01-02","last_filing_date":"2026-07-20","url":"/sec/cik-0001015328","insider_summary":{"total_transactions":62,"unique_insiders":23,"latest_transaction":"2026-06-30"},"recent_filings":[{"accession_number":"0002090993-26-000008","form_type":"4","form_type_family":"insider","doc_date":"2026-09-30","title":"4 — WINTRUST FINANCIAL CORP — 2026-09-30","url_slug":"/sec/cik-0001015328/4/0002090993-26-000008","edgar_url":"https://www.sec.gov/Archives/edgar/data/1015328/0002090993-26-000008-index.html"},{"accession_number":"0001865855-26-000016","form_type":"4","form_type_family":"insider","doc_date":"2026-09-30","title":"4 — WINTRUST FINANCIAL CORP — 2026-09-30","url_slug":"/sec/cik-0001015328/4/0001865855-26-000016","edgar_url":"https://www.sec.gov/Archives/edgar/data/1015328/0001865855-26-000016-index.html"},{"accession_number":"0001814152-26-000008","form_type":"4","form_type_family":"insider","doc_date":"2026-09-30","title":"4 — WINTRUST FINANCIAL CORP — 2026-09-30","url_slug":"/sec/cik-0001015328/4/0001814152-26-000008","edgar_url":"https://www.sec.gov/Archives/edgar/data/1015328/0001814152-26-000008-index.html"},{"accession_number":"0001777967-26-000008","form_type":"4","form_type_family":"insider","doc_date":"2026-09-30","title":"4 — WINTRUST FINANCIAL CORP — 2026-09-30","url_slug":"/sec/cik-0001015328/4/0001777967-26-000008","edgar_url":"https://www.sec.gov/Archives/edgar/data/1015328/0001777967-26-000008-index.html"},{"accession_number":"0001777925-26-000008","form_type":"4","form_type_family":"insider","doc_date":"2026-09-30","title":"4 — WINTRUST FINANCIAL CORP — 2026-09-30","url_slug":"/sec/cik-0001015328/4/0001777925-26-000008","edgar_url":"https://www.sec.gov/Archives/edgar/data/1015328/0001777925-26-000008-index.html"},{"accession_number":"0001761744-26-000014","form_type":"4","form_type_family":"insider","doc_date":"2026-09-30","title":"4 — WINTRUST FINANCIAL CORP — 2026-09-30","url_slug":"/sec/cik-0001015328/4/0001761744-26-000014","edgar_url":"https://www.sec.gov/Archives/edgar/data/1015328/0001761744-26-000014-index.html"},{"accession_number":"0001642693-26-000008","form_type":"4","form_type_family":"insider","doc_date":"2026-09-30","title":"4 — WINTRUST FINANCIAL CORP — 2026-09-30","url_slug":"/sec/cik-0001015328/4/0001642693-26-000008","edgar_url":"https://www.sec.gov/Archives/edgar/data/1015328/0001642693-26-000008-index.html"},{"accession_number":"0001366763-26-000008","form_type":"4","form_type_family":"insider","doc_date":"2026-09-30","title":"4 — WINTRUST FINANCIAL CORP — 2026-09-30","url_slug":"/sec/cik-0001015328/4/0001366763-26-000008","edgar_url":"https://www.sec.gov/Archives/edgar/data/1015328/0001366763-26-000008-index.html"},{"accession_number":"0001244272-26-000008","form_type":"4","form_type_family":"insider","doc_date":"2026-09-30","title":"4 — WINTRUST FINANCIAL CORP — 2026-09-30","url_slug":"/sec/cik-0001015328/4/0001244272-26-000008","edgar_url":"https://www.sec.gov/Archives/edgar/data/1015328/0001244272-26-000008-index.html"},{"accession_number":"0001106469-26-000008","form_type":"4","form_type_family":"insider","doc_date":"2026-09-30","title":"4 — WINTRUST FINANCIAL CORP — 2026-09-30","url_slug":"/sec/cik-0001015328/4/0001106469-26-000008","edgar_url":"https://www.sec.gov/Archives/edgar/data/1015328/0001106469-26-000008-index.html"},{"accession_number":"0001020076-26-000008","form_type":"4","form_type_family":"insider","doc_date":"2026-09-30","title":"4 — WINTRUST FINANCIAL CORP — 2026-09-30","url_slug":"/sec/cik-0001015328/4/0001020076-26-000008","edgar_url":"https://www.sec.gov/Archives/edgar/data/1015328/0001020076-26-000008-index.html"},{"accession_number":"0001244290-26-000009","form_type":"4","form_type_family":"insider","doc_date":"2026-08-21","title":"4 — WINTRUST FINANCIAL CORP — 2026-08-21","url_slug":"/sec/cik-0001015328/4/0001244290-26-000009","edgar_url":"https://www.sec.gov/Archives/edgar/data/1015328/0001244290-26-000009-index.html"},{"accession_number":"0001244276-26-000018","form_type":"4","form_type_family":"insider","doc_date":"2026-08-21","title":"4 — WINTRUST FINANCIAL CORP — 2026-08-21","url_slug":"/sec/cik-0001015328/4/0001244276-26-000018","edgar_url":"https://www.sec.gov/Archives/edgar/data/1015328/0001244276-26-000018-index.html"},{"accession_number":"0001365691-26-000008","form_type":"4","form_type_family":"insider","doc_date":"2026-08-18","title":"4 — WINTRUST FINANCIAL CORP — 2026-08-18","url_slug":"/sec/cik-0001015328/4/0001365691-26-000008","edgar_url":"https://www.sec.gov/Archives/edgar/data/1015328/0001365691-26-000008-index.html"},{"accession_number":"0001244276-26-000016","form_type":"4","form_type_family":"insider","doc_date":"2026-08-13","title":"4 — WINTRUST FINANCIAL CORP — 2026-08-13","url_slug":"/sec/cik-0001015328/4/0001244276-26-000016","edgar_url":"https://www.sec.gov/Archives/edgar/data/1015328/0001244276-26-000016-index.html"},{"accession_number":"0001244276-26-000014","form_type":"144","form_type_family":"other","doc_date":"2026-08-13","title":"144 — WINTRUST FINANCIAL CORP — 2026-08-13","url_slug":"/sec/cik-0001015328/144/0001244276-26-000014","edgar_url":"https://www.sec.gov/Archives/edgar/data/1015328/0001244276-26-000014-index.html"},{"accession_number":"0001015328-26-000022","form_type":"10-Q","form_type_family":"quarterly","doc_date":"2026-08-05","title":"10-Q — WINTRUST FINANCIAL CORP — 2026-08-05","url_slug":"/sec/cik-0001015328/10-q/0001015328-26-000022","edgar_url":"https://www.sec.gov/Archives/edgar/data/1015328/0001015328-26-000022-index.html"},{"accession_number":"0001015328-26-000019","form_type":"8-K","form_type_family":"current","doc_date":"2026-07-20","title":"8-K — WINTRUST FINANCIAL CORP — 2026-07-20","url_slug":"/sec/cik-0001015328/8-k/0001015328-26-000019","edgar_url":"https://www.sec.gov/Archives/edgar/data/1015328/0001015328-26-000019-index.html"},{"accession_number":"0002090993-26-000005","form_type":"4","form_type_family":"insider","doc_date":"2026-07-02","title":"4 — WINTRUST FINANCIAL CORP — 2026-07-02","url_slug":"/sec/cik-0001015328/4/0002090993-26-000005","edgar_url":"https://www.sec.gov/Archives/edgar/data/1015328/0002090993-26-000005-index.html"},{"accession_number":"0001865855-26-000013","form_type":"4","form_type_family":"insider","doc_date":"2026-07-02","title":"4 — WINTRUST FINANCIAL CORP — 2026-07-02","url_slug":"/sec/cik-0001015328/4/0001865855-26-000013","edgar_url":"https://www.sec.gov/Archives/edgar/data/1015328/0001865855-26-000013-index.html"},{"accession_number":"0001814152-26-000005","form_type":"4","form_type_family":"insider","doc_date":"2026-07-02","title":"4 — WINTRUST FINANCIAL CORP — 2026-07-02","url_slug":"/sec/cik-0001015328/4/0001814152-26-000005","edgar_url":"https://www.sec.gov/Archives/edgar/data/1015328/0001814152-26-000005-index.html"},{"accession_number":"0001777967-26-000005","form_type":"4","form_type_family":"insider","doc_date":"2026-07-02","title":"4 — WINTRUST FINANCIAL CORP — 2026-07-02","url_slug":"/sec/cik-0001015328/4/0001777967-26-000005","edgar_url":"https://www.sec.gov/Archives/edgar/data/1015328/0001777967-26-000005-index.html"},{"accession_number":"0001777925-26-000005","form_type":"4","form_type_family":"insider","doc_date":"2026-07-02","title":"4 — WINTRUST FINANCIAL CORP — 2026-07-02","url_slug":"/sec/cik-0001015328/4/0001777925-26-000005","edgar_url":"https://www.sec.gov/Archives/edgar/data/1015328/0001777925-26-000005-index.html"},{"accession_number":"0001761744-26-000011","form_type":"4","form_type_family":"insider","doc_date":"2026-07-02","title":"4 — WINTRUST FINANCIAL CORP — 2026-07-02","url_slug":"/sec/cik-0001015328/4/0001761744-26-000011","edgar_url":"https://www.sec.gov/Archives/edgar/data/1015328/0001761744-26-000011-index.html"},{"accession_number":"0001642693-26-000005","form_type":"4","form_type_family":"insider","doc_date":"2026-07-02","title":"4 — WINTRUST FINANCIAL CORP — 2026-07-02","url_slug":"/sec/cik-0001015328/4/0001642693-26-000005","edgar_url":"https://www.sec.gov/Archives/edgar/data/1015328/0001642693-26-000005-index.html"}],"related_endpoints":{"profile":"/sec/WTFC/profile","timeline":"/sec/WTFC/timeline","peers":"/sec/WTFC/peers","insider_pulse":"/sec/WTFC/insider-pulse","insider_summary":"/sec/WTFC/insider-summary","insider_transactions":"/sec/WTFC/insider-transactions","form144":"/sec/WTFC/form144","holdings_as_filer":"/sec/WTFC/holdings","financial_facts":"/sec/WTFC/financial-facts","derivatives":"/sec/WTFC/derivatives","officers":"/sec/WTFC/officers","insider_network":"/sec/WTFC/insider-network","risk_flags":"/sec/WTFC/risk-flags","filings":"/sec/WTFC/filings","cross_topic_dossier":"/api/v1/dossier?ticker=WTFC"}}