Byline Bancorp completes $41.5M merger with First Security Bancorp, assets reach $9.8B

BYLINE BANCORP, INC.

Merger closed April 1, 2025; First Security merged into Byline Bank, adding scale in Chicago metro.
Total pro forma assets of approximately $9.8 billion as of December 31, 2024.
Each First Security common share exchanged for 2.3539 shares of BY common stock.
Total merger consideration valued at roughly $41.5 million; preferred shares redeemed for $2.4M cash.
CEO Roberto Herencia highlighted strengthened community banking position in Chicago.

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