Byline Bancorp (BY) 10% Owner Antonio Del Valle Sells 300,000 Shares

What Happened
Antonio Del Valle (reported as a 10% owner) sold 300,000 shares of Byline Bancorp common stock on August 7, 2026. The shares were sold at $39.10 per share for a total of $11,730,000. According to the filing footnote, the sale was to — and a repurchase by — Byline Bancorp under a Stock Repurchase Agreement.

Key Details

• Transaction date: August 7, 2026; Price: $39.10 per share; Total proceeds: $11,730,000.
• Method: Sale to the issuer pursuant to a Stock Repurchase Agreement between MBG Investors I, L.P. and Byline Bancorp.
• Price basis: $39.10 was set using the 5-day average NYSE closing price for July 27–31, 2026 (per footnote).
• Shares owned after the transaction: not disclosed in the provided filing.
• Filing date: August 11, 2026 — filed within the Form 4 two-business-day deadline (timely).
• Insider status: Reported filer is a 10% owner (institutional/large-holder reporting), not an executive salary/option exercise record.

Context
This was a sale/repurchase transaction (company buyback of shares held by the reported 10% owner), which is a liquidity event for the holder. The filing contains no indication of option exercises, gift transfers, or a 10b5-1 plan in the disclosed footnote. As with all insider sales, this is factual disclosure and does not by itself indicate company performance or the insider’s future views.