Brogan Ptacin, Head of Commercial Banking at Byline Bancorp, Inc., filed a Form 4 on November 2, 2026, disclosing the sale of 16,100 shares of common stock on October 29, 2026, held indirectly through a revocable trust.

Key Highlights

  • Reporting person: Brogan Ptacin, Head of Commercial Banking at Byline Bancorp, Inc. (NYSE:BY)
  • First transaction: 14,229 shares disposed of on October 29, 2026, at $38.9037 per share (transaction code S)
  • Second transaction: 1,871 shares disposed of on October 29, 2026, at $39.0476 per share (transaction code S)
  • Both sales: executed indirectly through the Brogan M. Ptacin Rev Trust Dtd 3/24/2004, Brogan M. Ptacin TTEE
  • Remaining indirect holdings: 11,100 shares held through the trust following both reported transactions
  • Direct holdings: 25,859 shares of common stock held directly after the reported transactions

Ptacin Trust Sales of Byline Bancorp Common Stock, October 29, 2026

According to the Form 4 filed with the SEC on November 2, 2026, Brogan Ptacin, who serves as Head of Commercial Banking at Byline Bancorp, Inc. (NYSE:BY), reported two open-market sales of common stock on October 29, 2026. Both transactions were carried out indirectly through the Brogan M. Ptacin Rev Trust Dtd 3/24/2004, of which Brogan M. Ptacin is trustee.

The filing discloses that the first sale consisted of 14,229 shares at a price of $38.9037 per share, reducing the trust's indirect holdings to 12,971 shares. A second sale of 1,871 shares followed at $39.0476 per share, bringing the trust's remaining indirect beneficial ownership to 11,100 shares, according to the filing. Both transactions carry transaction code S, indicating open-market sales.

In addition to the indirect trust holdings, the filing reports that Ptacin directly holds 25,859 shares of Byline Bancorp common stock following the reported transactions. The Form 4 was signed by Thomas J. Bell III as Attorney-in-Fact on November 2, 2026. No derivative securities were reported in Table II of the filing.

What Was Disclosed

The filing disclosed two sales of Byline Bancorp common stock by Brogan Ptacin, Head of Commercial Banking, on October 29, 2026, totaling 16,100 shares sold indirectly through a revocable trust at prices of $38.9037 and $39.0476 per share, with 25,859 shares held directly afterward.