SCHEDULE: MBG Investors Adjusts Byline Bancorp Stake Post-Repurchase

MBG Investors I, L.P. and Antonio del Valle Perochena have filed an amendment to their Schedule 13G, detailing a reduction in their beneficial ownership of Byline Bancorp, Inc. common stock following a significant share repurchase by the issuer.

Summary

• MBG Investors I, L.P. and Antonio del Valle Perochena have filed an amendment (Amendment No. 4) to their Schedule 13G filing.
• This amendment reflects a reduction in their beneficial ownership of Byline Bancorp, Inc. common stock.
• The reduction is a result of Byline Bancorp, Inc. repurchasing 300,000 shares of its Common Stock from MBG Investors I, L.P.
• The stock repurchase occurred under a Stock Repurchase Agreement dated August 7, 2026.
• The repurchase price was $39.10 per share, determined by the five-day average closing price from July 27-31, 2026.
• The aggregate purchase price for the repurchased shares was $11.73 million.
• The percentage of class calculations are based on 45,186,420 shares of Common Stock outstanding as of August 3, 2026.

Sentiment

Score: 6

Explanation: StockSavvy.ai views this as a neutral to slightly positive filing, primarily reflecting a routine adjustment in beneficial ownership due to a stock repurchase, rather than a significant strategic shift or performance indicator.

Positives

• The company actively managed its share count through a repurchase program, potentially signaling confidence in its valuation or a strategy to enhance shareholder value.
• The repurchase price was based on a recent market average, suggesting a fair transaction price.
• The filing is an amendment, indicating ongoing compliance and transparency with regulatory requirements.

Negatives

• A reduction in beneficial ownership by a significant investor, even if due to a repurchase, can sometimes be interpreted negatively by the market.
• The repurchase reduces the number of shares held by a known investor, potentially impacting liquidity or future institutional interest.

Risks

• The filing does not explicitly mention any new risks. The primary event is a stock repurchase, which is a financial transaction.
• Potential future risks could arise if the repurchase is part of a broader strategy that impacts the company's growth or operational capacity, though this is not indicated here.

Future Outlook

The filing itself does not contain forward-looking statements or guidance. It is an amendment to a beneficial ownership report reflecting a past transaction.

Management Comments

• The repurchase price was determined based on the five (5) day average closing price for the Common Stock on the NYSE for the period from July 27, 2026 through July 31, 2026.
• Percent of class calculations are based on 45,186,420 shares of Common Stock outstanding as of August 3, 2026, as reported in the Issuer's Quarterly Report on Form 10-Q filed on August 6, 2026.

Industry Context

StockSavvy.ai notes that share repurchases are a common capital allocation strategy employed by companies across various industries to return value to shareholders, manage dilution, or signal confidence in the company's stock. This action by Byline Bancorp, Inc. aligns with such practices.

Related Party Transactions

• The stock repurchase agreement between Byline Bancorp, Inc. and MBG Investors I, L.P. constitutes a related party transaction, as MBG Investors I, L.P. is a significant beneficial owner.

Stakeholder Impact

• Shareholders: The repurchase of shares may lead to a slight increase in earnings per share (EPS) and potentially support the stock price, assuming the repurchase is viewed favorably.
• MBG Investors I, L.P.: Their beneficial ownership stake has decreased, impacting their percentage ownership and voting power.
• Byline Bancorp, Inc.: The company has reduced its cash reserves by $11.73 million to fund the repurchase.

Next Steps

• MBG Investors I, L.P. and Antonio del Valle Perochena will continue to file amendments to Schedule 13G as required by regulations.
• Byline Bancorp, Inc. may continue its share repurchase program or other capital allocation strategies.

Key Dates

Keywords

Schedule 13G, Beneficial Ownership, Stock Repurchase, MBG Investors I, L.P., Antonio del Valle Perochena, Byline Bancorp, Inc., Common Stock, SEC Filing