Brogan Ptacin, Head of Commercial Banking at Byline Bancorp, Inc. (NYSE: BY), filed a Form 4 on August 4, 2026, disclosing transactions in the company's common stock dated August 3, 2026.

Key Highlights

  • Option exercise: Ptacin acquired 9,450 shares of common stock at $12.70 per share on August 3, 2026, via transaction code A (relating to a derivative security exercise).
  • Shares disposed: 9,450 shares were disposed of on the same date at $39.6107 per share, transaction code D.
  • Direct ownership after transactions: 25,859 shares of common stock held directly following the reported transactions.
  • Indirect ownership: 27,200 shares held indirectly through the Brogan M. Ptacin Rev Trust Dtd 3/24/2004, Brogan M. Ptacin TTEE.
  • Derivative security: A common stock option with an exercise price of $12.70, exercisable from 05/31/2018 and expiring 12/20/2026, covering 9,450 shares, was exercised, leaving 0 derivative securities held following the transaction.
  • Signed by attorney-in-fact: The filing was signed by Thomas J. Bell III as Attorney-in-Fact on August 4, 2026.

Byline Bancorp Head of Commercial Banking Exercises Expiring Options and Sells Shares

According to the Form 4 filed with the U.S. Securities and Exchange Commission, Brogan Ptacin, identified as Head of Commercial Banking at Byline Bancorp, Inc., reported two transactions in the company's common stock on August 3, 2026. The filing shows an acquisition of 9,450 shares at a price of $12.70 per share and a same-day disposal of 9,450 shares at $39.6107 per share.

The filing's Table II discloses that the acquisition corresponds to the exercise of a derivative security - a common stock option with an exercise price of $12.70 - covering 9,450 shares of common stock. The option had a date exercisable of 05/31/2018 and an expiration date of 12/20/2026. Following the transaction, the reporting person held 0 derivative securities of this type. The price of the derivative security is listed as $0 in the filing.

After the reported transactions, Ptacin directly owned 25,859 shares of Byline Bancorp common stock, according to the filing. In addition, the filing discloses indirect beneficial ownership of 27,200 shares held through the Brogan M. Ptacin Rev Trust Dtd 3/24/2004, Brogan M. Ptacin TTEE. The form was filed by one reporting person and was signed by Thomas J. Bell III as Attorney-in-Fact on August 4, 2026.

What Was Disclosed

The filing reported a same-day option exercise and share disposal by Byline Bancorp's Head of Commercial Banking on August 3, 2026, resulting in direct ownership of 25,859 shares and indirect ownership of 27,200 shares through a revocable trust.