BYLINE BANCORP, INC.

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Special Note Regarding Forward-Looking Statements

Statements contained in this report and in other documents we file with or furnish to the Securities and Exchange Commission (“SEC”) that are not historical facts may constitute “forward-looking statements” within the meaning of the U.S. Private Securities Litigation Reform Act of 1995. Any statements about our expectations, beliefs, plans, strategies, predictions, forecasts, objectives or assumptions of future events or performance are not historical facts and may be forward-looking. These statements are often, but not always, made through the use of words or phrases such as “anticipates,” “believes,” “expects,” “can,” “could,” “may,” “predicts,” “potential,” “opportunity,” “should,” “will,” “estimate,” “plans,” “projects,” “continuing,” “ongoing,” “expects,” “seeks,” “intends” and similar words or phrases. Accordingly, these statements involve estimates, known and unknown risks, assumptions and uncertainties that could cause actual strategies, actions or results to differ materially from those expressed in such statements, and are not guarantees of future results or other events or performance. Because forward-looking statements are necessarily only estimates of future strategies, actions or results, based on management’s current expectations, assumptions and estimates on the date hereof, there can be no assurance that actual strategies, actions or results will not differ materially from expectations and readers are cautioned not to place undue reliance on such statements.

Our ability to predict results or the actual effects of future plans, strategies or events is inherently uncertain. Factors which could cause actual results or conditions to differ materially from those reflected in forward-looking statements include:

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uncertainty regarding domestic, foreign, and geopolitical developments, and the United States and global economic outlook that may impact market conditions or affect demand for certain banking products and services, and the impact on our customers, which could impair the ability of our borrowers to repay outstanding loans and leases, impair collateral values and further increase our allowance for credit losses - loans and leases, as well as result in possible asset impairment charges;

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unforeseen credit quality problems or changing economic conditions that could result in charge-offs greater than we have anticipated in our allowance for credit losses - loans and leases or changes in the value of our investments;

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commercial real estate market conditions in the Chicago metropolitan area and southern Wisconsin;

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deterioration in the financial condition of our borrowers resulting in significant increases in our loan and lease losses and provisions for those losses and other related adverse impacts to our results of operations and financial condition;

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fair value estimates of certain of our assets and liabilities, which could change in value significantly from period to period;

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competitive pressures in the financial services industry in our market areas relating to both pricing and loan and lease structures, which may impact our growth rate;

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demand for loan products and deposit flows;

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unanticipated developments in pending or prospective loan and/or lease transactions or greater-than-expected paydowns or payoffs of existing loans and leases;

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inaccurate information and assumptions in our analytical and forecasting models used to manage our balance sheet;

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unanticipated changes in monetary policies of the Federal Reserve or significant adjustments in the pace of, or market expectations for, future interest rate changes;

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availability of sufficient and cost-effective sources of liquidity, funding, and capital as and when needed;

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our ability to attract, retain or the loss of key personnel or an inability to recruit appropriate talent cost-effectively;

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adverse effects on our information technology systems resulting from failures, human error or cyberattack, including the potential impact of disruptions or security breaches at our third-party service providers, any of which could result in an information or security breach, the disclosure or misuse of confidential or proprietary information, significant legal and financial losses and reputational harm;

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greater-than-anticipated costs to support the growth of our business, including investments in new lines of business, products and services, or technology, process improvements or other infrastructure enhancements, or greater-than-anticipated compliance or regulatory costs and burdens;

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the impact of possible future acquisitions, if any, including the costs and burdens of integration efforts;

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the ability of the Company to receive dividends from Byline Bank;

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legislative or regulatory changes, particularly potential changes in regulation, supervision, examination and enforcement priorities of the federal banking agencies in regard to financial services companies and/or the products and services offered by financial services companies;

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changes in Small Business Administration ("SBA") and U.S. Department of Agriculture ("USDA") U.S. government guaranteed lending rules, regulations, loan products and funding limits, including specifically the SBA Section 7(a) program, as well as changes in SBA or USDA standard operating procedures or changes to the status of Byline Bank as an SBA Preferred Lender;

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changes in accounting principles, policies and guidelines applicable to bank holding companies and banking generally;

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the impact of a possible change in the federal or state income tax rates on our deferred tax assets and provision for income tax expense;

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our ability to implement our growth strategy, including via acquisitions;

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the possibility that any of the anticipated benefits of acquisitions will not be realized or will not be realized within the expected time period;

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the risk that the integration of acquisition operations will be materially delayed or will be more costly or difficult than expected;

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the effect of mergers on customer relationships and operating results; and

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other risks detailed from time to time in filings we make with the SEC.

These risks and uncertainties should be considered in evaluating any forward-looking statements, and undue reliance should not be placed on such statements. Additional information concerning the Company, including additional factors and risks that could materially affect our business and financial results, are included herein. See Item 1A. "Risk Factors". Forward-looking statements speak only as of the date they are made. We assume no obligation to update any of these statements in light of new information, future events or otherwise unless required under the federal securities laws.

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