Company: WTFCN
Filing Date: 2025-05-21
Form Type: 8-A12B
Source: 0001104659-25-051541
Chunk: 1

Company: WINTRUST FINANCIAL CORP
Filing Date: 2025-05-21
Form: 8-A12B
Chunk 1
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000th interest in a share of 7.875% Fixed-Rate Reset Non-Cumulative Perpetual
Preferred Stock, Series F, no par value, with a liquidation preference of $25,000 (the “Series F Preferred Stock”), of Wintrust
Financial Corporation, an Illinois corporation (the “Company”).

The descriptions of the Depositary Shares and the underlying shares
of Series F Preferred Stock are incorporated herein by reference to the descriptions included under the captions “Description of Depositary Shares” and “Description of Preferred Stock,” respectively, in the Prospectus Supplement dated May 8, 2025, as filed with the Securities and Exchange Commission (the “SEC”) on May 9, 2025 pursuant to Rule 424(b) under
the Securities Act of 1933, as amended, to the Prospectus dated May 9, 2023, included in the Company’s registration statement on
Form S-3 (File No. 333-271788) filed with the SEC on May 9, 2023. The Depositary Shares are expected to be listed on The NASDAQ Global
Select Market.

Item 2. Exhibits.

| Exhibit 
 No.     
 3.1     
 3.2     |     | Description                                                                                                                                                                                                                                                                                                                                                                                                                                      
 Amended and Restated Articles of Incorporation of the Company, as amended (incorporated by reference to Exhibit 3.1 of the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2006, Exhibits 3.1 and 3.2 of the Company’s Current Report on Form 8-K filed with the Securities and Exchange Commission on July 29, 2011 and Exhibit 3.1 of the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2012). 
 Restated Certificate of Designations of the Company filed on May 5, 2023 with the Secretary of State of the State of Illinois designating the preferences, limitations, voting powers and relative rights of the Series D Preferred Stock (incorporated by reference to Exhibit 3.2 of the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2023).                                                                        |
|:--------|:----|:-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 3.3     |     | Certificate of Designations of the Company filed on May 7, 2020 with the Secretary