8-K filed October 8, 2026, 5:15 PM ET ticker BY CIK 0001702750

leadership confidence high sentiment neutral materiality 0.30

Byline Bancorp names McGuire Chief Commercial Banking Officer, Hawthorne Chief Credit Officer; two EVPs retire

BYLINE BANCORP, INC.

Sean H. McGuire (58) named EVP and Chief Commercial Banking Officer, a newly created role effective Jan 1, 2027; he had led as SVP Commercial Banking Group Head since 2019.
Scott E. Hawthorne (46) named EVP and Chief Credit Officer effective Jan 1, 2027, succeeding Mark Fucinato; he has been Deputy Chief Credit Officer since Aug 2026.
Darrin Bacon named EVP and Head of Commercial Banking, succeeding Brogan Ptacin; Bacon joined Byline via the 2018 First Bank & Trust acquisition and reports to McGuire.
Ptacin (Head of Commercial Banking since 2019) and Fucinato (Chief Credit Officer since 2020) retire Dec 31, 2026 after a combined 25 years; both stay part-time in advisory roles.
McGuire and Bacon report to Byline Bank President and CEO Alberto Paracchini; Byline Bancorp Executive Chairman and CEO is Roberto R. Herencia.

item 5.02 item 7.01 item 9.01

Executive movements

Machine-extracted from this filing. Every card cites the SEC source. See all recent executive movements.

Departed

Brogan M. Ptacin

Executive Vice President and Head of Commercial Banking

BY · BYLINE BANCORP, INC.

Effective: 2026-12-31
Successor: Darrin Bacon
Filed: October 8, 2026, 5:15 PM ET

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.

Departed

Mark Fucinato

Executive Vice President and Chief Credit Officer

BY · BYLINE BANCORP, INC.

Effective: 2026-12-31
Successor: Scott Hawthorne
Filed: October 8, 2026, 5:15 PM ET

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.

Appointed

Scott Hawthorne

Chief Credit Officer

BY · BYLINE BANCORP, INC.

Effective: 2027-01-01
Filed: October 8, 2026, 5:15 PM ET

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.

Appointed

Sean H. McGuire

Chief Commercial Banking Officer

BY · BYLINE BANCORP, INC.

Effective: 2027-01-01
Filed: October 8, 2026, 5:15 PM ET

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.

Key facts

Extracted from this filing and checked against the source text.

Executive change SEC 8-K Item 5.02 confidence 0.92

Brogan M. Ptacin departed as Executive Vice President and Head of Commercial Banking at BYLINE BANCORP, INC..

Action: retire
Role: Executive Vice President and Head of Commercial Banking

Exact text from the filing

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.

View on SEC.gov

Executive change SEC 8-K Item 5.02 confidence 0.95

Mark Fucinato departed as Executive Vice President and Chief Credit Officer at BYLINE BANCORP, INC..

Action: retire
Role: Executive Vice President and Chief Credit Officer

Exact text from the filing

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.

View on SEC.gov

Executive change SEC 8-K Item 5.02 confidence 0.95

Scott Hawthorne was appointed as Chief Credit Officer at BYLINE BANCORP, INC..

Action: appointed
Role: Chief Credit Officer

Exact text from the filing

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.

View on SEC.gov

Executive change SEC 8-K Item 5.02 confidence 0.95

Sean H. McGuire was appointed as Chief Commercial Banking Officer at BYLINE BANCORP, INC..

Action: appointed
Role: Chief Commercial Banking Officer

Exact text from the filing

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.

View on SEC.gov

BYLINE BANCORP, INC. filing history →

Source: SEC EDGAR

accession 0001193125-26-418064

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