Conference call and webcast to be held on Friday, April 25

Byline Bancorp, Inc. (NYSE:BY) announced today that it will issue its first quarter 2025 financial results after market close on Thursday, April 24, 2025.

Byline Bancorp will also host a conference call and webcast at 9:00 a.m. Central Time on Friday, April 25, 2025 to discuss its financial results. Analysts and investors may participate in the question-and-answer session.

Conference Call, Replay and Webcast Information:

Date: Friday, April 25, 2025

Time: 9:00 a.m. Central Time

Telephone Access: 833-470-1428; passcode: 400191

Telephone Replay (available through May 9, 2025): 866-813-9403; passcode: 172708

Webcast Access: A live webcast will be available on the News and Events page in the Investor Relations section of the Company's website. An archived version of the webcast will be available in the same location shortly after the live call has ended.

About Byline Bancorp, Inc.

Headquartered in Chicago, Byline Bancorp, Inc. is the parent company of Byline Bank, a full service commercial bank serving small- and medium-sized businesses, financial sponsors, and consumers. Byline Bank operates 46 branch locations throughout the Chicago and Milwaukee metropolitan areas. Byline Bank offers a broad range of commercial and community banking products and services including small ticket equipment leasing solutions and is one of the top Small Business Administration lenders in the United States.

View source version on businesswire.com: https://www.businesswire.com/news/home/20250404871354/en/

Investors / Media:

Brooks O. Rennie

Head of Investor Relations

Byline Bank

(312) 660-5805

brennie@bylinebank.com

Byline Bancorp, Inc. to Announce First Quarter 2025 Financial Results on Thursday, April 24