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AI brief of an SEC Form 8-K · BYLINE BANCORP, INC. (BY)

Byline Bancorp names new commercial banking and credit chiefs; two executives retire Dec. 31

Neutral Impact 3 of 5 leadership Written later

Byline Bancorp announced leadership changes under its succession plan, effective January 1, 2027. Sean H. McGuire becomes Chief Commercial Banking Officer and Scott Hawthorne becomes Chief Credit Officer, as Brogan Ptacin and Mark Fucinato retire effective December 31, 2026. The changes involve senior roles in commercial banking and credit risk, though the filing contains no financial results or guidance.

Key points

  • Brogan Ptacin, Head of Commercial Banking, retires effective December 31, 2026; Darrin Bacon succeeds him as Head of Commercial Banking effective January 1, 2027
  • Mark Fucinato, Chief Credit Officer, retires effective December 31, 2026; Scott Hawthorne succeeds him effective January 1, 2027
  • Sean H. McGuire, 58, is appointed to the newly created Chief Commercial Banking Officer role effective January 1, 2027

The filing

CompanyBYLINE BANCORP, INC. (BY)
Form8-K, current report
Filed with the SECOct 8, 2026, 5:15 PM ET
Accession number0001193125-26-418064

Items reported: 5.02 Director / Officer Change7.01 Regulation FD Disclosure

Read the filing on SEC.gov ↗

Written by AI on Nov 9, 2026, 8:53 AM ET, from this filing only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on October 08, 2026.

Briefs are written by AI from the filing text and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the AI's reading of the filing for shareholders, not a price forecast. Not investment advice.