Byline Bancorp, Inc 8-K, filed Oct 8, 2026
Byline Bancorp, Inc. (BY)
About this 8-K
Byline Bancorp, Inc filed this 8-K on October 8, 2026.
Items reported
- Item 5.02: Director or officer change, or executive pay
- Item 7.01: Regulation FD disclosure
- Item 9.01: Financial statements and exhibits
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
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Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).
Emerging growth company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.
On October 08, 2026, Byline Bancorp, Inc. (the “Company”) and its wholly-owned subsidiary Byline Bank (the “Bank”) announced the following leadership changes, which will become effective January 1, 2027:
Retirement of Brogan M. Ptacin, Head of Commercial Banking
On October 08, 2026, Brogan Ptacin, Executive Vice President and Head of Commercial Banking, and a named executive officer of the Company, provided notice of his decision to retire from his position effective December 31, 2026. Following his retirement, Mr. Ptacin will be employed by the Bank in a non-executive, part-time, advisory capacity for a period of time to be determined.
Appointment of Sean H. McGuire as Chief Commercial Banking Officer
On October 08, 2026, the Bank appointed Sean H. McGuire, age 58, to the newly created positon of Chief Commercial Banking Officer, to be effective January 1, 2027.
Mr. McGuire joined the Bank in July 2019 and currently serves as Commercial Banking Group Head. Prior to his role at the Bank, Mr. McGuire served as Commercial Group President at MB Financial Bank from August 2009 until July 2019. Prior to his role at MB Financial Bank, Mr. McGuire served as a Senior Vice President at Fifth Third Bank.
Mr. McGuire received a Bachelor’s degree in Economics from the University of Notre Dame and a Masters of Business Administration from the Quinlan School of Business, Loyola University, Chicago.
Retirement of Mark Fucinato, Chief Credit Officer
On October 08, 2026, Mark Fucinato, Executive Vice President and Chief Credit Officer, provided notice of his decision to retire from his position effective December 31, 2026. Following his retirement, Mr. Fucinato will be employed by the Bank in a non-executive, part-time, advisory capacity for a period of time to be determined.
On October 08, 2026, the Company and the Bank appointed Scott Hawthorne, age 46, to succeed Mr. Fucinato as Chief Credit Officer, to be effective January 1, 2027.
Mr. Hawthorne joined the Bank in June 2023 and currently serves as Deputy Chief Credit Officer. Prior to his role at the Bank, Mr. Hawthorne served in several senior credit and credit risk roles at Fifth Third Bank from May 2019 to June 2023 and at MB Financial Bank from May 2005 to May 2019.
Item 7.01 Regulation FD Disclosure.
There are no family relationships between Messrs. McGuire or Hawthorne and any director or executive officer of the Company or the Bank, nor any arrangement or understanding between Mr. McGuire or Mr. Hawthorne and any other person pursuant to which he was appointed as an officer of the Company and/or the Bank. Also, neither Mr. McGuire nor Mr. Hawthorne has a direct or indirect material interest in any transaction that would be required to be reported under Item 404(a) of Regulation S-K.
A copy of the Company’s press release announcing these leadership changes is attached as Exhibit 99.1and incorporated herein by reference.
Item 9.01 Financial Statements and Exhibits.
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(d) Exhibits.
Exhibit No. |
Description |
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99.1 |
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
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BYLINE BANCORP, INC. |
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Date: |
October 8, 2026 |
By: |
/s/ Roberto R. Herencia |
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Name: Roberto R. Herencia |
bank throughout the Chicago metropolitan area. In this role, Mr. Ptacin has overseen the Bank's C&I lending units, Leasing business, and Wealth Management.
Following Mr. Ptacin’s retirement, he will remain with the Bank in a non-executive, part-time, advisory capacity to support an orderly transition as the Bank's commercial banking leadership structure evolves.
“It has been an honor to serve Byline and work alongside such talented colleagues,” said Brogan Ptacin. “I am incredibly proud of what we have accomplished together and I’m confident in the continued strength of Byline’s commercial banking business going forward.”
Credit Risk Leadership Transition
As part of the Bank's succession planning process, Scott Hawthorne, currently Senior Vice President – Deputy Chief Credit Officer, has been appointed Executive Vice President and Chief Credit Officer, effective January 1, 2027.
Scott Hawthorne has served as Deputy Chief Credit Officer since August 2026 and joined Byline as a Senior Credit Officer in 2023. He has more than 20 years of banking and credit experience, having worked with many of the commercial bankers at Byline during that time. In the role of Chief Credit Officer, he will oversee credit administration, credit underwriting, portfolio risk management, special assets, and related credit functions across the organization. He will report to Alberto Paracchini, President and Chief Executive Officer.
“We are pleased to appoint Scott Hawthorne as our next Chief Credit Officer,” said Mr. Paracchini. “He brings extensive experience in commercial banking, credit administration, and risk management, and has been instrumental in helping shape our credit strategy. At the same time, on behalf of the executive leadership team, I want to thank Mark Fucinato for his outstanding leadership, sound judgment, and commitment to maintaining a strong credit culture. Under his leadership, Byline successfully navigated challenging economic cycles while maintaining prudent risk management practices and supporting the growth of our customers and communities.”
Mark Fucinato joined Byline in 2019 and has served as Chief Credit Officer since 2020. During his tenure, he played a key role in strengthening the Bank's credit infrastructure, portfolio management processes, and risk governance framework.
Following Mr. Fucinato’s retirement, he will remain with the Bank in a non-executive, part-time, advisory capacity and will work closely with Mr. Hawthorne to ensure a seamless transfer of responsibilities.
“It has been a privilege to serve Byline and work alongside such an exceptional team,” said Mark Fucinato. “I am proud of the strong credit culture, disciplined risk framework, and talented credit professionals we have built over the years. I have every confidence that Scott and the team will continue to build on that foundation while supporting Byline's long-term growth and success.”
Roberto R. Herencia, Executive Chairman and Chief Executive Officer of Byline Bancorp, Inc., stated, “These planned retirements reflect the strength of our succession planning process. We have known for
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some time that these leadership transitions were approaching and have worked closely with both executives to ensure an orderly transition in each of their areas. On behalf of the Board of Directors, we are grateful for their significant contributions and are confident that Byline's commercial banking and credit leadership are exceptionally well prepared to continue building on that success and advancing our strategic priorities.”
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 has approximately $9.9 billion in assets and operates 44 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.
Forward-Looking Statements
This Current Report on Form 8-K contains forward-looking statements within the meaning of the U.S. federal securities laws. Forward-looking statements include, without limitation, statements concerning plans, estimates, calculations, forecasts and projections with respect to the anticipated future performance of the Company. These statements are often, but not always, made through the use of words or phrases such as ‘‘may’’, ‘‘might’’, ‘‘should’’, ‘‘could’’, ‘‘predict’’, ‘‘potential’’, ‘‘believe’’, ‘‘expect’’, ‘‘continue’’, ‘‘will’’, ‘‘anticipate’’, ‘‘seek’’, ‘‘estimate’’, ‘‘intend’’, ‘‘plan’’, ‘‘projection’’, ‘‘would’’, ‘‘annualized’’, “target” and ‘‘outlook’’, or the negative version of those words or other comparable words or phrases of a future or forward-looking nature. Forward-looking statements involve estimates and known and unknown risks, and reflect various assumptions and involve elements of subjective judgment and analysis, which may or may not prove to be correct, and which are subject to uncertainties and contingencies outside the control of Byline and its respective affiliates, directors, employees and other representatives, which could cause actual results to differ materially from those presented in this communication.
Certain risks and important factors that could affect Byline’s future results are identified in its Annual Report on Form 10-K and other reports filed with the Securities and Exchange Commission, including among other things under the heading “Risk Factors” in its Annual Report on Form 10-K for the year ended December 31, 2025. Any forward-looking statement speaks only as of the date on which it is made, and Byline undertakes no obligation to update any forward-looking statement, whether to reflect events or circumstances after the date on which the statement is made, to reflect new information or the occurrence of unanticipated events, or otherwise unless required under the federal securities laws.
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Contact For Byline Bancorp, Inc.:
Investors / Media:
Brooks O. Rennie
Head of Investor Relations
(312) 660-5805
brennie@bylinebank.com
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