BY Stock: Insider Activity, Filings & Research
Byline Bancorp, Inc. (BY) — Drillr’s hub for BY insider activity, SEC filings, earnings signals and AI research. Over the trailing 3 months, BY insiders filed 2 open-market buys and 0 sales (SEC Form 4).
BY insider trading activity (SEC Form 4)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| May 4, 2026 | KISTNER WILLIAM Gdirector | Buy | 100 | $31.97 |
| Apr 20, 2026 | ABRAHAM THOMASofficer: PRESIDENT, SBC | Grant | 2,406 | — |
| Mar 16, 2026 | HERSETH MARY JO S.director | Buy | 300 | $30.83 |
| Mar 2, 2026 | Barkidjija Johnofficer: HEAD OF CRE & SPECIALTY FIN | Sell | 4,509 | $32.33 |
| Feb 24, 2026 | BIGGAM MEGANofficer: EVP HEAD OF COMMUNITY BANKING | Tax | 772 | $33.13 |
| Feb 24, 2026 | Rose Danaofficer: CHIEF HUMAN RESOURCES OFFICER | Tax | 1,139 | $33.13 |
| Feb 24, 2026 | Rose Danaofficer: CHIEF HUMAN RESOURCES OFFICER | Grant | 3,291 | — |
| Feb 24, 2026 | BIGGAM MEGANofficer: EVP HEAD OF COMMUNITY BANKING | Grant | 2,231 | — |
| Feb 24, 2026 | Fucinato Markofficer: CHIEF CREDIT OFFICER | Grant | 3,948 | — |
| Feb 24, 2026 | Rose Danaofficer: CHIEF HUMAN RESOURCES OFFICER | Grant | 2,537 | — |
| Feb 24, 2026 | Ptacin Broganofficer: HEAD OF COMMERCIAL BANKING | Grant | 3,866 | — |
| Feb 24, 2026 | Paracchini Alberto Jdirector, officer: PRESIDENT | Grant | 8,029 | — |
| Feb 24, 2026 | Olano Maria Sherylle Aofficer: SVP, CHIEF ACCOUNTING OFFICER | Grant | 2,378 | — |
| Feb 24, 2026 | Rose Danaofficer: CHIEF HUMAN RESOURCES OFFICER | Tax | 855 | $33.13 |
| Feb 24, 2026 | Fucinato Markofficer: CHIEF CREDIT OFFICER | Tax | 934 | $33.13 |
Source: BY SEC Form 4 filings, latest May 4, 2026. For informational purposes only — not investment advice.
Byline Bancorp, Inc. company profile
Overview
Byline Bancorp, Inc. (NASDAQ:BY) is a Chicago-based regional bank holding company that operates through its subsidiary Byline Bank. Founded in 1914 and originally known as Metropolitan Bank Group, the company went public in 2017 and changed its name to Byline Bancorp in 2015. The bank has grown significantly through both organic expansion and strategic acquisitions, including the 2023 merger with Inland Bancorp and the 2025 acquisition of First Security Bancorp. Today, Byline operates 43 branch locations primarily in the Chicago metropolitan area plus one branch in Wisconsin, positioning itself as a premier commercial bank serving the greater Chicago market.
Business
Byline Bancorp operates as a regional commercial bank focused primarily on serving small and medium-sized businesses, commercial real estate investors, and individual consumers in the Chicago metropolitan area. The banking industry provides essential financial intermediation services, taking deposits from customers and lending those funds to borrowers while earning a spread on the interest rates. The company's core business segments include: 1. Commercial Banking (approximately 70-75% of loan portfolio): This segment provides term loans, revolving lines of credit, and construction financing to small and medium-sized businesses. The bank also offers specialized lending to private equity-backed lower middle market companies through senior secured financing solutions. 2. Commercial Real Estate Lending (approximately 20-25% of loan portfolio): Byline provides financing for commercial real estate projects, including construction loans and permanent financing for office buildings, retail centers, and other commercial properties. 3. Government-Guaranteed Lending: The bank originates Small Business Administration (SBA) loans and United States Department of Agriculture (USDA) loans, which provide government backing that reduces credit risk. 4. Retail Banking: Traditional consumer banking services including checking and savings accounts, money market accounts, time deposits, ATM and debit cards, and online/mobile banking platforms. 5. Treasury Management and Wealth Services: The bank provides cash management solutions for business clients and offers investment, trust, and wealth management services including financial planning, investment advisory services, and private banking for high net worth individuals, foundations, and endowments. 6. Equipment Finance: Specialized financing solutions for equipment vendors and their end-user customers across various industries.
Competitive moat
Byline Bancorp operates in the highly competitive regional banking sector with limited sustainable competitive advantages. The company's primary moat stems from its local market relationships and specialized expertise in the Chicago commercial banking market. The bank has built strong ties with middle-market businesses, commercial real estate developers, and private equity sponsors over its 110-year history, creating switching costs for clients who value personalized service and local decision-making. The bank's government-guaranteed lending expertise provides some differentiation, particularly in SBA and USDA lending where specialized knowledge and processing capabilities create barriers to entry. However, this advantage has diminished as management has deliberately reduced exposure to unguaranteed portions of these loans. Geographic concentration represents both a strength and vulnerability. While deep Chicago market knowledge provides advantages, it also creates concentration risk and limits diversification. The banking industry faces significant competitive pressures from larger national banks with superior technology resources, fintech companies offering specialized services, and other regional banks competing for the same customer base. Regulatory barriers provide some protection by limiting new entrants, but established competitors face the same protections. The approaching $10 billion asset threshold will actually reduce competitiveness by subjecting Byline to more stringent regulations while providing no additional benefits. Overall, Byline's moat is narrow and primarily relationship-based, making it vulnerable to disruption from better-capitalized competitors or technological innovation. The bank's success depends heavily on execution, credit discipline, and maintaining service quality rather than any fundamental competitive advantages.
Risks & safety
Byline Bancorp demonstrates moderate financial stability with adequate capitalization but faces some regulatory transition risks. • Capital Position: Strong capital ratios with CET1 ratio of 11.35% and total capital ratio of 14.4%, well above regulatory minimums • Liquidity: Solid cash position of $563 million and loan-to-deposit ratio of 92%, indicating adequate funding flexibility • Asset Quality: Non-performing loans at manageable 90 basis points, though credit costs expected around 35 basis points • Profitability: Consistent earnings with ROE of 11.1% and ROA of 129 basis points • Valuation: Trading at reasonable P/E of 10.4x and P/B of 1.15x, suggesting fair valuation • Debt Levels: Debt-to-equity ratio of 0.68 is typical for banking operations • Regulatory Risk: Approaching $10 billion asset threshold will increase compliance costs and reduce interchange income • Concentration Risk: Geographic concentration in Chicago market creates vulnerability to local economic downturns
Recent development
Over the past few years, Byline has pursued an aggressive growth-through-acquisition strategy while building scale to approach the critical $10 billion asset threshold. The company completed the significant Inland Bancorp merger in 2023, which expanded its market presence and added approximately $1.5 billion in assets. Most recently, Byline closed the First Security Bancorp acquisition in April 2025, adding another $355 million in assets and further consolidating its Chicago market position. The bank has simultaneously focused on organic growth initiatives, particularly in talent acquisition and specialized lending capabilities. Management has emphasized recruiting experienced commercial bankers from larger institutions, capitalizing on market disruption in the Chicago banking sector. The company has expanded its wealth management division and enhanced treasury management services to diversify fee income sources. Credit portfolio optimization has been a key strategic priority, with management actively reducing exposure to riskier segments. The bank significantly decreased its unguaranteed SBA loan exposure from 15% to 6.1% of the total portfolio and has been selectively managing its commercial real estate portfolio, particularly office properties. Byline has also invested in technology infrastructure and operational efficiency improvements in preparation for crossing the $10 billion asset threshold, which will trigger enhanced regulatory requirements including Durbin Amendment compliance. The company has maintained disciplined expense management while preparing for these increased regulatory costs. The bank's strategic focus remains on becoming the premier commercial bank in Chicago through continued market share gains, relationship deepening, and selective acquisition opportunities in complementary areas like private banking and wealth management.
BY company profile · for informational purposes only — not investment advice.
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