Byline Bancorp, Inc. Reports Fourth Quarter and Full Year 2025 Financial Results

Company Release - 1/22/2026 Fourth quarter net income of $34.5 million, $0.76 diluted earnings per share Full year net income of $130.1 million, $2.89 diluted earnings per share Byline Bancorp, Inc. (NYSE: BY), today reported: At or for the quarter Full Year Highlights (compared to prior year) 4Q25 3Q25 4Q24 Financial Results ($ in thousands) • Delivered solid full year 2025 results reflecting record revenues of $446.3 million Net interest income $ 101,255 $ 99,890 $ 88,524 Non-interest income 15,750 15,845 16,149 Total revenue(1) 117,005 115,735 104,673 • Net income increased 7.7% to $130.1 million Non-interest expense (NIE) 60,369 60,518 57,431 Pre-tax pre-provision net income (PTPP)(1) 56,636 55,217 47,242 • PTPP net income of $209.4 million(1), up 11.3% Provision for credit losses 9,702 5,298 6,878 Provision for income taxes 12,413 12,719 10,044 • Net interest income up $37.3 million, or 10.7%; NIM up 25 bps to 4.22% Net income $ 34,521 $ 37,200 $ 30,320 Per Share • Generated full year positive operating leverage Diluted earnings per share (EPS) $ 0.76 $ 0.82 $ 0.69 Dividends declared per common share 0.10 0.10 0.09 • TBV per common share of $23.44(1), up 16.7% Book value per common share 27.84 26.99 24.55 Tangible book value per common share(1) 23.44 22.58 20.09 Fourth Quarter Highlights (compared to prior quarter) Balance Sheet & Credit Quality ($ in thousands) • Net interest income of $101.3 million, an increase of $1.4 million, or 1.4% Total deposits $ 7,647,443 $ 7,828,197 $ 7,458,628 Total loans and leases 7,522,990 7,461,321 6,910,022 Net charge-offs 6,707 7,107 7,792 • NIM expanded eight bps to 4.35% Allowance for credit losses (ACL) 108,834 105,717 97,988 ACL to total loans and leases held for investment 1.45% 1.42% 1.42% • PTPP ROAA of 2.32%(1), 13th consecutive quarter greater than 2.00% Select Ratios (annualized where applicable) Efficiency ratio(1) 50.32% 51.00% 53.58% • Efficiency ratio(1) of 50.32% Return on average assets (ROAA) 1.41% 1.52% 1.31% Return on average stockholders' equity 10.61% 12.21% 11.03% • TCE/TA of 11.29%(1), increase of 51 bps Return on average tangible common equity(1) 12.97% 15.11% 13.92% Net interest margin (NIM) 4.35% 4.27% 4.01% • CET 1 of 12.33%, up 18 bps Common equity to total assets 13.14% 12.61% 11.49% Tangible common equity to tangible assets(1) 11.29% 10.78% 9.61% • Repurchased 345,706 common shares Common equity tier 1 12.33% 12.15% 11.70% CEO/President Commentary Roberto R. Herencia, Executive Chairman and CEO of Byline Bancorp, commented, "Throughout 2025 we advanced our strategy of becoming the preeminent commercial bank in Chicago and delivering strong financial results. We made significant progress across our strategic priorities—deepening our commercial presence, growing customers, and executing initiatives that strengthened our franchise. As we enter 2026, we are operating from a position of strength, remain focused on consistent execution of our strategy, supporting our customers, and driving long‑term value for our stockholders." Alberto J. Paracchini, President of Byline Bancorp, added, "Our fourth quarter performance reflected strong execution across our business units. We delivered solid earnings, maintained excellent profitability while strengthening our balance sheet. The quarter capped a year of meaningful progress, and we are well positioned to support our customers and drive profitable growth in 2026. I want to thank all our employees for their dedication, talent, and commitment, which remain central to our success." Board Declares Cash Dividend of $0.12 per Share On January 21, 2026, the Company's Board of Directors declared a cash dividend of $0.12 per share, which represents a 20.0% increase from the previous quarterly dividend of $0.10 per share. The dividend will be paid on February 17, 2026, to stockholders of record of the Company's common stock as of February 3, 2026. STATEMENTS OF OPERATIONS HIGHLIGHTS Net Interest Income Quarterly results Net interest income for the fourth quarter of 2025 was $101.3 million, an increase of $1.4 million, or 1.4%, from the third quarter of 2025. The increase in net interest income was due to lower rates paid on deposits and the redemption of the subordinated note issued during 2020 on October 1, 2025, offset by lower interest income on loans and leases and on securities. Tax-equivalent net interest margin(1) for the fourth quarter of 2025 was 4.36%, an increase of eight basis points compared to the third quarter of 2025. The increase was primarily due to lower rates paid on deposits and lower costs of subordinated notes and debentures, offset by lower yields on loans and leases. Net loan accretion income contributed 10 basis points to the net interest margin for the quarter, a one basis point decrease over the prior quarter. The average cost of total deposits was 1.97% for the fourth quarter of 2025, a decrease of 19 basis points compared to the third quarter of 2025, mainly as a result of a lower rates paid on money market accounts, and lower balances of, and rates paid on, brokered time deposits. Full-year results Net interest income for the year ended December 31, 2025 was $385.3 million, an increase of $37.3 million, or 10.7%, from the prior year. The increase in net interest income was primarily due to lower rates paid on deposits, and higher interest income reflecting growth in the loan and lease portfolio, offset by lower income on other interest and dividend income. Tax-equivalent net interest margin(1) for the year ended December 31, 2025 was 4.23%, an increase of 25 basis points compared to the prior year. The increase was primarily a result of the changing interest rate environment, reflecting our lower reliance on brokered time deposits, offset by lower yields on loans and interest-bearing cash. Net loan accretion income contributed 11 basis points to the net interest margin for the year, a four basis point decrease over the prior year. The average cost of total deposits was 2.17% for the year ended December 31, 2025, a decrease of 44 basis points compared to the prior year mainly as a result of lower balances and rates paid on time deposits. Provision for Credit Losses Quarterly results The provision for credit losses was $9.7 million for the fourth quarter of 2025, an increase of $4.4 million compared to $5.3 million for the third quarter of 2025, mainly due to higher non-performing loans and leases. Full-year result The provision for credit losses was $36.1 million for the year ended December 31, 2025, an increase of $9.1 million compared to $27.0 million for the prior year, mainly due to growth in the loan and leases portfolio and higher non-performing loans and leases. Non-interest Income Quarterly results Non-interest income for the fourth quarter of 2025 was $15.7 million, a slight decrease of $95,000, or 0.6%, compared to $15.8 million for the third quarter of 2025. The modest decline in total non-interest income was primarily due to lower net gains on sales of loans, offset by higher other non-interest income and increases in the fair value of equity securities. Net gains on sales of loans totaled $5.4 million for the quarter, a decrease of $1.6 million, or 22.8%, compared to the prior quarter. This decrease was primarily due to lower premiums, mix and timing of loans sold. During the fourth quarter of 2025, we sold $78.9 million of U.S. government guaranteed loans compared to $92.9 million during the third quarter of 2025. Full-year results Non-interest income for the year ended December 31, 2025 was $60.9 million, an increase of $2.1 million, or 3.5%, compared to $58.9 million for the prior year. The increase in total non-interest income was primarily due to higher income on other non-interest income primarily driven by swap activity, and a lower downward revaluation on the loan servicing asset, offset by lower net gains on sales of loans. Net gains on sales of loans were $22.7 million for the current year, a decrease of $1.8 million, or 7.4% compared to the prior year, primarily due to lower premiums compared to the prior year. During 2025, we sold $315.0 million of U.S. government guaranteed loans compared to $314.8 million during the prior year. Non-interest Expense Quarterly results Non-interest expense for the fourth quarter of 2025 was $60.4 million, a decrease of $149,000, or 0.2%, compared to $60.5 million for the third quarter of 2025. The decrease in non-interest expense was mainly due to lower loan and lease related expenses and lower data processing expenses, offset by higher salaries and benefits. Our efficiency ratio was 50.32%(1) for the fourth quarter of 2025, compared to 51.00%(1) for the third quarter of 2025, an improvement of 68 basis points. The improvement in the efficiency ratio was mainly driven by decreased interest expense. Excluding significant items, our adjusted efficiency ratio was 50.15%(1) for the fourth quarter of 2025, compared to 50.27%(1) for the third quarter of 2025, an improvement of 12 basis points. Full-year results Non-interest expense for the year ended December 31, 2025 was $236.9 million, an increase of $18.1 million, or 8.3%, compared to $218.8 million for the year ended December 31, 2024. The increase in non-interest expense was mainly due to increased salaries and employee benefits, legal, audit, and other professional fees, and data processing, all primarily driven from merger-related activities. Our efficiency ratio was 51.83%(1) for the year ended December 31, 2025, compared to 52.45%(1) for the year ended December 31, 2024, an improvement of 62 basis points. The improvement in the efficiency ratio was mainly driven by increased total revenues and lower interest expense. Excluding significant items, our adjusted efficiency ratio was 50.37%(1) for the year ended December 31, 2025, compared to 52.24%(1) for the year ended December 31, 2024, an improvement of 187 basis points, mainly due to higher revenues, lower interest expense, and lower adjusted non-interest expense. Income Taxes Quarterly results We recorded income tax expense of $12.4 million during the fourth quarter of 2025, compared to $12.7 million during the third quarter of 2025. The effective tax rates were 26.4% and 25.5% for the fourth and third quarters of 2025, respectively. Full-year results We recorded income tax expense of $43.2 million during the year ended December 31, 2025, compared to $40.3 million during the year ended December 31, 2024. The effective tax rates were 24.9% and 25.0% for the years ended December 31, 2025 and December 31, 2024, respectively. STATEMENTS OF FINANCIAL CONDITION HIGHLIGHTS Assets Total assets were $9.7 billion as of December 31, 2025, a decrease of $159.7 million, or 1.6%, compared to $9.8 billion at September 30, 2025, and an increase of $156.1 million, or 1.6% compared to $9.5 billion as of December 31, 2024. The decrease for the current quarter was mainly due to a decrease in cash and cash equivalents of $112.1 million and a decrease in securities of $107.1 million, offset by a $65.5 million increase to net loans and leases. The increase for the current year was mainly due to a $591.7 million increase in net loans and leases, offset by a decrease of $414.0 million to cash and cash equivalents. Allowance for Credit Losses The ACL was $108.8 million as of December 31, 2025, an increase of $3.1 million, or 2.9%, from $105.7 million at September 30, 2025, mainly due to higher non-performing loans, and an increase of $10.8 million, or 11.1%, from $98.0 million as of December 31, 2024. Net loan and lease charge-offs during the fourth quarter of 2025 were $6.7 million, or 0.36% of average loans and leases, on an annualized basis, a decrease of $400,000 compared to net charge-offs of $7.1 million, or 0.38% of average loans and leases, during the third quarter of 2025. The decrease in net charge-offs for the quarter was due to lower charge-offs in the commercial real estate portfolio. Net loan and leases charge-offs during the year ended December 31, 2025 were $28.1 million, or 0.39% of average loans and leases, a decrease of $3.9 million compared to net charge-offs of $32.0 million, or 0.47% of average loans and leases, during the year ended December 31, 2024. The decrease in net charge-offs for the year was mainly due to higher recoveries and a decrease in commercial and industrial charge-offs. Asset Quality Non-performing assets were $74.7 million, or 0.77% of total assets, as of December 31, 2025, an increase of $7.3 million from $67.4 million, or 0.69% of total assets, at September 30, 2025. The increase was mainly driven by one loan reclassified to non-performing, offset by decreases to other real estate owned. The government guaranteed portion of non-performing loans included in non-performing assets was $9.7 million at December 31, 2025, compared to $8.4 million at September 30, 2025, an increase of $1.3 million. Non-performing assets increased $7.4 million compared to December 31, 2024, primarily due to increases in non-accrual in commercial and industrial and commercial real estate loans, offset by decreases in other real estate owned. The government guaranteed portion of non-performing loans included in non-performing assets decreased $146,000 during 2025, from $9.9 million as of December 31, 2024, to $9.7 million as of December 31, 2025. Deposits and Other Liabilities Total deposits decreased $180.8 million, or 2.3% to $7.6 billion at December 31, 2025 from $7.8 billion as of September 30, 2025, and increased $188.8 million or 2.5% from $7.5 billion as of December 31, 2024. The decrease in deposits during the fourth quarter was mainly due to decreases in non-interest-bearing demand accounts, and decreases to time deposits. The increase during the year was due primarily to deposits acquired through acquisition. Total borrowings and other liabilities were $737.3 million at December 31, 2025, a decrease of $9.2 million from $746.5 million at September 30, 2025, and a decrease of $209.1 million from $946.4 million as of December 31, 2024. The decrease for the quarter was primarily driven by the redemption of $75.0 million of subordinated notes, offset by higher Federal Home Loan Bank ("FHLB") advances. The decrease for the year was primarily due to lower FHLB advances. Stockholders’ Equity Total stockholders’ equity was $1.3 billion at December 31, 2025, an increase of $30.2 million, or 2.4%, from September 30, 2025, primarily due to an increase in retained earnings from net income. Total stockholders' equity increased $176.4 million, or 16.2% from December 31, 2024, due to increased retained earnings from net income, lower unrealized loss on securities available-for-sale in accumulated other comprehensive income, and from common stock issued in connection with the First Security acquisition. During the quarter and year ended December 31, 2025, we purchased 345,706 and 922,729 shares of our common stock at an average price of $28.21 and $25.72, per share, respectively. (1) Represents non-GAAP financial measures. See “Reconciliation of non-GAAP Financial Measures” for a reconciliation of our non-GAAP measures to the most directly comparable GAAP financial measure. Conference Call, Webcast and Slide Presentation We will host a conference call and webcast at 9:00 a.m. Central Time on Friday, January 23, 2026, to discuss our quarterly financial results. Analysts and investors may participate in the question-and-answer session. The call can be accessed via telephone at (833) 470-1428; passcode 535219. A recorded replay can be accessed through February 6, 2026, by dialing (866) 813-9403; passcode: 656595. A slide presentation relating to our fourth quarter 2025 results will be accessible prior to the conference call. The slide presentation and webcast of the conference call can be accessed on our investor relations website at www.bylinebancorp.com. About Byline Bancorp, Inc. Headquartered in Chicago, Byline Bancorp, Inc. is the parent company of Byline Bank, a full service commercial bank serving small- and medium-sized businesses, financial sponsors, and consumers. Byline Bank has approximately $9.6 billion in assets and operates 45 branch locations throughout the Chicago and Milwaukee metropolitan areas. Byline Bank offers a broad range of commercial and community banking products and services including small ticket equipment leasing solutions and is one of the top Small Business Administration lenders in the United States. Forward-Looking Statements This communication contains forward-looking statements within the meaning of the U.S. federal securities laws. Forward-looking statements include, without limitation, statements concerning plans, estimates, calculations, forecasts and projections with respect to the anticipated future performance of the Company. These statements are often, but not always, made through the use of words or phrases such as ‘‘may’’, ‘‘might’’, ‘‘should’’, ‘‘could’’, ‘‘predict’’, ‘‘potential’’, ‘‘believe’’, ‘‘expect’’, ‘‘continue’’, ‘‘will’’, ‘‘anticipate’’, ‘‘seek’’, ‘‘estimate’’, ‘‘intend’’, ‘‘plan’’, ‘‘projection’’, ‘‘would’’, ‘‘annualized’’, “target” and ‘‘outlook’’, or the negative version of those words or other comparable words or phrases of a future or forward-looking nature. Forward-looking statements involve estimates and known and unknown risks, and reflect various assumptions and involve elements of subjective judgment and analysis, which may or may not prove to be correct, and which are subject to uncertainties and contingencies outside the control of Byline and its respective affiliates, directors, employees and other representatives, which could cause actual results to differ materially from those presented in this communication. No representations, warranties or guarantees are or will be made by Byline as to the reliability, accuracy or completeness of any forward-looking statements contained in this communication or that such forward-looking statements are or will remain based on reasonable assumptions. You should not place undue reliance on any forward-looking statements contained in this communication. Certain risks and important factors that could affect Byline’s future results are identified in our Annual Report on Form 10-K and other reports we file with the Securities and Exchange Commission, including among other things under the heading “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2024. Any forward-looking statement speaks only as of the date on which it is made, and Byline undertakes no obligation to update any forward-looking statement, whether to reflect events or circumstances after the date on which the statement is made, to reflect new information or the occurrence of unanticipated events, or otherwise unless required under the federal securities laws. BYLINE BANCORP, INC. AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (unaudited) December 31, 2025 September 30, 2025 December 31, 2024 (dollars in thousands) ASSETS Cash and due from banks $ 60,184 $ 70,406 $ 58,759 Interest bearing deposits with other banks 88,911 190,774 504,379 Cash and cash equivalents 149,095 261,180 563,138 Equity and other securities, at fair value 10,660 10,461 9,865 Securities available-for-sale, at fair value 1,405,106 1,512,194 1,415,696 Securities held-to-maturity, at amortized cost — — 605 Restricted stock, at cost 21,314 15,934 27,452 Loans held for sale 13,621 20,566 3,200 Loans and leases: Loans and leases 7,509,369 7,440,755 6,906,822 Allowance for credit losses - loans and leases (108,834 ) (105,717 ) (97,988 ) Net loans and leases 7,400,535 7,335,038 6,808,834 Servicing assets, at fair value 19,234 19,019 18,952 Premises and equipment, net 57,988 58,785 60,502 Other real estate owned, net 3,394 4,220 5,170 Goodwill and other intangible assets, net 200,520 202,014 198,098 Bank-owned life insurance 107,462 106,575 100,083 Deferred tax assets, net 41,779 49,918 56,458 Accrued interest receivable and other assets 221,968 216,471 228,476 Total assets $ 9,652,676 $ 9,812,375 $ 9,496,529 LIABILITIES AND STOCKHOLDERS’ EQUITY LIABILITIES Non-interest-bearing demand deposits $ 1,818,888 $ 1,932,869 $ 1,756,098 Interest-bearing deposits 5,828,555 5,895,328 5,702,530 Total deposits 7,647,443 7,828,197 7,458,628 Other borrowings 419,598 361,286 618,773 Subordinated notes, net 73,940 148,971 74,040 Junior subordinated debentures issued to capital trusts, net 71,409 71,272 70,890 Accrued expenses and other liabilities 172,380 164,967 182,701 Total liabilities 8,384,770 8,574,693 8,405,032 STOCKHOLDERS’ EQUITY Common stock 471 471 455 Additional paid-in capital 760,700 758,089 717,763 Retained earnings 645,724 615,784 533,901 Treasury stock (65,914 ) (56,959 ) (46,935 ) Accumulated other comprehensive loss, net of tax (73,075 ) (79,703 ) (113,687 ) Total stockholders’ equity 1,267,906 1,237,682 1,091,497 Total liabilities and stockholders’ equity $ 9,652,676 $ 9,812,375 $ 9,496,529 BYLINE BANCORP, INC. AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) Three Months Ended Year Ended (dollars in thousands, December 31, 2025 September 30, 2025 December 31, 2024 December 31, 2025 December 31, 2024 except per share data) INTEREST AND DIVIDEND INCOME Interest and fees on loans and leases $ 129,394 $ 132,401 $ 123,702 $ 511,224 $ 502,353 Interest on securities 12,431 13,289 11,710 51,754 43,218 Other interest and dividend income 2,375 2,936 4,191 9,242 20,358 Total interest and dividend income 144,200 148,626 139,603 572,220 565,929 INTEREST EXPENSE Deposits 38,432 42,857 46,725 167,718 192,366 Other borrowings 1,639 1,502 1,466 6,372 13,669 Subordinated notes and debentures 2,874 4,377 2,888 12,782 11,848 Total interest expense 42,945 48,736 51,079 186,872 217,883 Net interest income 101,255 99,890 88,524 385,348 348,046 PROVISION FOR CREDIT LOSSES 9,702 5,298 6,878 36,102 27,041 Net interest income after provision for credit losses 91,553 94,592 81,646 349,246 321,005 NON-INTEREST INCOME Fees and service charges on deposits 2,799 2,741 2,648 10,876 10,214 Loan servicing revenue 3,085 3,062 3,151 12,261 12,905 Loan servicing asset revaluation (1,107 ) (1,294 ) (1,350 ) (5,602 ) (6,704 ) ATM and interchange fees 975 1,015 1,083 4,083 4,464 Net gains (losses) on sales of securities available-for-sale 16 — (699 ) (21 ) (699 ) Change in fair value of equity securities, net 199 (298 ) 732 795 1,122 Net gains on sales of loans 5,386 6,981 7,107 22,719 24,540 Wealth management and trust income 1,324 1,366 1,110 4,846 4,310 Other non-interest income 3,073 2,272 2,367 10,968 8,699 Total non-interest income 15,750 15,845 16,149 60,925 58,851 NON-INTEREST EXPENSE Salaries and employee benefits 38,813 37,492 37,281 150,376 140,119 Occupancy and equipment expense, net 4,142 4,531 4,407 18,264 18,703 Impairment charge on assets held for sale 195 — — 195 — Loan and lease related expenses 584 1,274 660 3,623 2,789 Legal, audit, and other professional fees 4,088 3,876 3,358 16,058 13,428 Data processing 4,385 4,903 4,473 19,445 16,869 Net loss recognized on other real estate owned and other related expenses 528 617 654 1,143 568 Other intangible assets amortization expense 1,494 1,494 1,345 5,605 5,380 Other non-interest expense 6,140 6,331 5,253 22,209 20,921 Total non-interest expense 60,369 60,518 57,431 236,918 218,777 INCOME BEFORE PROVISION FOR INCOME TAXES 46,934 49,919 40,364 173,253 161,079 PROVISION FOR INCOME TAXES 12,413 12,719 10,044 43,202 40,320 NET INCOME $ 34,521 $ 37,200 $ 30,320 $ 130,051 $ 120,759 EARNINGS PER COMMON SHARE Basic $ 0.77 $ 0.82 $ 0.69 $ 2.90 $ 2.78 Diluted $ 0.76 $ 0.82 $ 0.69 $ 2.89 $ 2.75 BYLINE BANCORP, INC. AND SUBSIDIARIES SELECTED FINANCIAL DATA (unaudited) As of or For the Three Months Ended As of or For the Year Ended December 31, 2025 September 30, 2025 December 31, 2024 December 31, 2025 December 31, 2024 (dollars in thousands, except share and per share data) Earnings per Common Share Basic earnings per common share $ 0.77 $ 0.82 $ 0.69 $ 2.90 $ 2.78 Diluted earnings per common share $ 0.76 $ 0.82 $ 0.69 $ 2.89 $ 2.75 Adjusted diluted earnings per common share(1)(3) $ 0.76 $ 0.83 $ 0.69 $ 3.00 $ 2.76 Weighted average common shares outstanding (basic) 44,980,736 45,102,828 43,656,793 44,798,651 43,448,856 Weighted average common shares outstanding (diluted) 45,330,163 45,372,602 44,179,818 45,063,611 43,853,939 Common shares outstanding 45,545,928 45,859,977 44,459,584 45,545,928 44,459,584 Cash dividends per common share $ 0.10 $ 0.10 $ 0.09 $ 0.40 $ 0.36 Dividend payout ratio on common stock 13.16 % 12.20 % 13.04 % 13.84 % 13.09 % Book value per common share $ 27.84 $ 26.99 $ 24.55 $ 27.84 $ 24.55 Tangible book value per common share(1) $ 23.44 $ 22.58 $ 20.09 $ 23.44 $ 20.09 Key Ratios and Performance Metrics (annualized where applicable) Net interest margin 4.35 % 4.27 % 4.01 % 4.22 % 3.97 % Net interest margin, fully taxable equivalent(1)(4) 4.36 % 4.28 % 4.02 % 4.23 % 3.98 % Average cost of deposits 1.97 % 2.16 % 2.48 % 2.17 % 2.61 % Efficiency ratio(1)(2) 50.32 % 51.00 % 53.58 % 51.83 % 52.45 % Adjusted efficiency ratio(1)(2)(3) 50.15 % 50.27 % 53.37 % 50.37 % 52.24 % Non-interest income to total revenues(1) 13.46 % 13.69 % 15.43 % 13.65 % 14.46 % Non-interest expense to average assets 2.47 % 2.47 % 2.48 % 2.48 % 2.38 % Adjusted non-interest expense to average assets(1)(3) 2.47 % 2.44 % 2.47 % 2.41 % 2.37 % Return on average stockholders' equity 10.61 % 12.21 % 11.03 % 10.86 % 11.61 % Adjusted return on average stockholders' equity(1)(3) 10.65 % 12.42 % 11.10 % 11.28 % 11.68 % Return on average assets 1.41 % 1.52 % 1.31 % 1.36 % 1.31 % Adjusted return on average assets(1)(3) 1.42 % 1.54 % 1.32 % 1.41 % 1.32 % Pre-tax pre-provision return on average assets(1) 2.32 % 2.25 % 2.04 % 2.19 % 2.05 % Adjusted pre-tax pre-provision return on average assets(1)(3) 2.33 % 2.29 % 2.05 % 2.26 % 2.06 % Return on average tangible common stockholders' equity(1) 12.97 % 15.11 % 13.92 % 13.47 % 14.85 % Adjusted return on average tangible common stockholders' equity(1)(3) 13.02 % 15.36 % 14.02 % 13.97 % 14.94 % Non-interest-bearing deposits to total deposits 23.78 % 24.69 % 23.54 % 23.78 % 23.54 % Loans and leases held for sale and loans and lease held for investment to total deposits 98.37 % 95.31 % 92.64 % 98.37 % 92.64 % Deposits to total liabilities 91.21 % 91.29 % 88.74 % 91.21 % 88.74 % Deposits per branch $ 169,943 $ 173,960 $ 162,144 $ 169,943 $ 162,144 Asset Quality Ratios Non-performing loans and leases to total loans and leases held for investment, net before ACL 0.95 % 0.85 % 0.90 % 0.95 % 0.90 % Total non-performing assets as a percentage of total assets 0.77 % 0.69 % 0.71 % 0.77 % 0.71 % ACL to total loans and leases held for investment, net before ACL 1.45 % 1.42 % 1.42 % 1.45 % 1.42 % Net charge-offs to average total loans and leases held for investment, net before ACL - loans and leases 0.36 % 0.38 % 0.45 % 0.39 % 0.47 % Capital Ratios Common equity to total assets 13.14 % 12.61 % 11.49 % 13.14 % 11.49 % Tangible common equity to tangible assets(1) 11.29 % 10.78 % 9.61 % 11.29 % 9.61 % Leverage ratio 12.53 % 12.20 % 11.74 % 12.53 % 11.74 % Common equity tier 1 capital ratio 12.33 % 12.15 % 11.70 % 12.33 % 11.70 % Tier 1 capital ratio 13.29 % 13.12 % 12.73 % 13.29 % 12.73 % Total capital ratio 15.34 % 15.81 % 14.74 % 15.34 % 14.74 % (1) Represents a non-GAAP financial measure. See “Reconciliation of non-GAAP Financial Measures” for a reconciliation of our non-GAAP measures to the most directly comparable GAAP financial measure.(2) Represents non-interest expense less amortization of intangible assets divided by net interest income and non-interest income.(3) Calculation excludes merger-related expenses and expenses related to the secondary public offering of common stock.(4) Interest income and rates include the effects of a tax equivalent adjustment to adjust tax exempt investment income on tax exempt investment securities to a fully taxable basis, assuming a federal income tax rate of 21%. BYLINE BANCORP, INC. AND SUBSIDIARIES QUARTER-TO-DATE STATEMENT OF AVERAGE INTEREST-EARNING ASSETS AND AVERAGE INTEREST-BEARING LIABILITIES (unaudited) For the Three Months Ended December 31, 2025 September 30, 2025 December 31, 2024 (dollars in thousands) Average Balance(5) Interest Inc / Exp Avg. Yield / Rate Average Balance(5) Interest Inc / Exp Avg. Yield / Rate Average Balance(5) Interest Inc / Exp Avg. Yield / Rate ASSETS Cash and cash equivalents $ 190,859 $ 1,708 3.55 % $ 193,683 $ 1,878 3.84 % $ 272,409 $ 2,721 3.97 % Loans and leases(1) 7,387,460 129,394 6.95 % 7,355,958 132,401 7.14 % 6,828,128 123,702 7.21 % Taxable securities 1,505,617 12,296 3.24 % 1,585,013 13,491 3.38 % 1,529,134 12,317 3.20 % Tax-exempt securities(2) 146,863 1,015 2.74 % 153,424 1,084 2.80 % 155,505 1,093 2.80 % Total interest-earning assets $ 9,230,799 $ 144,413 6.21 % $ 9,288,078 $ 148,854 6.36 % $ 8,785,176 $ 139,833 6.33 % Allowance for credit losses - loans and leases (108,557 ) (109,877 ) (100,281 ) All other assets 560,861 538,719 516,740 TOTAL ASSETS $ 9,683,103 $ 9,716,920 $ 9,201,635 LIABILITIES AND STOCKHOLDERS’ EQUITY Deposits Interest checking $ 890,025 $ 3,686 1.64 % $ 834,763 $ 3,682 1.75 % $ 717,222 $ 3,478 1.93 % Money market accounts 2,937,945 21,093 2.85 % 2,986,541 23,468 3.12 % 2,480,805 19,951 3.20 % Savings 489,899 132 0.11 % 495,506 136 0.11 % 486,262 130 0.11 % Time deposits 1,521,864 13,521 3.52 % 1,654,056 15,571 3.73 % 2,020,225 23,166 4.56 % Total interest-bearing deposits 5,839,733 38,432 2.61 % 5,970,866 42,857 2.85 % 5,704,514 46,725 3.26 % Other borrowings 332,284 1,639 1.96 % 307,457 1,502 1.94 % 301,959 1,466 1.93 % Subordinated notes and debentures 145,297 2,874 7.85 % 190,074 4,377 9.14 % 144,853 2,888 7.93 % Total borrowings 477,581 4,513 3.75 % 497,531 5,879 4.69 % 446,812 4,354 3.88 % Total interest-bearing liabilities $ 6,317,314 $ 42,945 2.70 % $ 6,468,397 $ 48,736 2.99 % $ 6,151,326 $ 51,079 3.30 % Non-interest-bearing demand deposits 1,910,132 1,888,693 1,777,273 Other liabilities 164,868 151,540 179,011 Total stockholders’ equity 1,290,789 1,208,290 1,094,025 TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY $ 9,683,103 $ 9,716,920 $ 9,201,635 Net interest spread(3) 3.51 % 3.37 % 3.03 % Net interest income, fully taxable equivalent $ 101,468 $ 100,118 $ 88,754 Net interest margin, fully taxable equivalent(2)(4) 4.36 % 4.28 % 4.02 % Less: Tax-equivalent adjustment 213 0.01 % 228 0.01 % 230 0.01 % Net interest income $ 101,255 $ 99,890 $ 88,524 Net interest margin(4) 4.35 % 4.27 % 4.01 % Net loan accretion impact on margin $ 2,312 0.10 % $ 2,528 0.11 % $ 2,590 0.12 % (1) Loan and lease balances are net of deferred origination fees and costs and initial direct costs. Non-accrual loans and leases are included in total loan and lease balances.(2) Interest income and rates include the effects of a tax equivalent adjustment to adjust tax exempt investment income on tax exempt investment securities to a fully taxable basis, assuming a federal income tax rate of 21%.(3) Represents the average rate earned on interest-earning assets minus the average rate paid on interest-bearing liabilities.(4) Represents net interest income (annualized) divided by total average earning assets.(5) Average balances are average daily balances. BYLINE BANCORP, INC. AND SUBSIDIARIES YEAR-TO-DATE STATEMENT OF AVERAGE INTEREST-EARNING ASSETS AND AVERAGE INTEREST-BEARING LIABILITIES (unaudited) For the Year Ended December 31, 2025 December 31, 2024 (dollars in thousands) Average Balance(4) Interest Inc / Exp Average Yield / Rate Average Balance(4) Interest Inc / Exp Average Yield / Rate ASSETS Cash and cash equivalents $ 175,760 $ 6,270 3.57 % $ 346,777 $ 15,635 4.51 % Loans and leases(1) 7,226,607 511,224 7.07 % 6,786,547 502,353 7.40 % Taxable securities 1,575,363 51,338 3.26 % 1,483,640 44,476 3.00 % Tax-exempt securities(2) 152,466 4,289 2.81 % 157,050 4,386 2.79 % Total interest-earning assets $ 9,130,196 $ 573,121 6.28 % $ 8,774,014 $ 566,850 6.46 % Allowance for credit losses - loans and leases (106,092 ) (101,695 ) All other assets 532,850 515,023 TOTAL ASSETS $ 9,556,954 $ 9,187,342 LIABILITIES AND STOCKHOLDERS’ EQUITY Deposits Interest checking $ 828,122 $ 14,181 1.71 % $ 695,156 $ 14,442 2.08 % Money market accounts 2,860,470 86,928 3.04 % 2,344,309 80,960 3.45 % Savings 494,264 533 0.11 % 506,889 711 0.14 % Time deposits 1,701,328 66,076 3.88 % 2,024,942 96,253 4.75 % Total interest-bearing deposits 5,884,184 167,718 2.85 % 5,571,296 192,366 3.45 % Other borrowings 319,151 6,372 2.00 % 442,364 13,648 3.09 % Federal funds purchased — — 0.00 % 348 21 6.05 % Subordinated notes and debentures 156,484 12,782 8.17 % 144,624 11,848 8.19 % Total borrowings 475,635 19,154 4.03 % 587,336 25,517 4.34 % Total interest-bearing liabilities $ 6,359,819 $ 186,872 2.94 % $ 6,158,632 $ 217,883 3.54 % Non-interest-bearing demand deposits 1,833,596 1,802,258 Other liabilities 166,063 185,937 Total stockholders’ equity 1,197,476 1,040,515 TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY $ 9,556,954 $ 9,187,342 Net interest spread(3) 3.34 % 2.92 % Net interest income, fully taxable equivalent $ 386,249 $ 348,967 Net interest margin, fully taxable equivalent(2)(4) 4.23 % 3.98 % Less: Tax-equivalent adjustment 901 0.01 % 921 0.01 % Net interest income $ 385,348 $ 348,046 Net interest margin(4) 4.22 % 3.97 % Net loan accretion impact on margin $ 10,413 0.11 % $ 13,511 0.15 % (1) Loan and lease balances are net of deferred origination fees and costs and initial direct costs. Non-accrual loans and leases are included in total loan and lease balances.(2) Interest income and rates include the effects of a tax equivalent adjustment to adjust tax exempt investment income on tax exempt investment securities to a fully taxable basis, assuming a federal income tax rate of 21%.(3) Represents the average rate earned on interest-earning assets minus the average rate paid on interest-bearing liabilities.(4) Represents net interest income (annualized) divided by total average earning assets.(5) Average balances are average daily balances. BYLINE BANCORP, INC. AND SUBSIDIARIES SELECTED BALANCE SHEET TABLES AND FINANCIAL RATIOS (unaudited) The following table presents our allocation of originated, purchased credit deteriorated (PCD), and acquired non-credit-deteriorated loans and leases at the dates indicated: December 31, 2025 September 30, 2025 December 31, 2024 (dollars in thousands) Amount % of Total Amount % of Total Amount % of Total Originated loans and leases: Commercial real estate $ 2,338,109 31.1 % $ 2,234,986 30.0 % $ 2,071,952 30.0 % Residential real estate 567,158 7.6 % 552,984 7.4 % 513,422 7.4 % Construction, land development, and other land 360,003 4.8 % 412,032 5.6 % 429,596 6.2 % Commercial and industrial 2,856,214 38.0 % 2,804,434 37.7 % 2,509,083 36.3 % Installment and other 3,470 0.0 % 2,431 0.0 % 3,847 0.1 % Leasing financing receivables 752,306 10.0 % 750,531 10.1 % 715,899 10.4 % Total originated loans and leases $ 6,877,260 91.5 % $ 6,757,398 90.8 % $ 6,243,799 90.4 % Purchased credit deteriorated loans: Commercial real estate $ 68,987 0.9 % $ 71,359 1.0 % $ 82,934 1.2 % Residential real estate 20,788 0.3 % 24,061 0.3 % 30,515 0.4 % Construction, land development, and other land 2,533 0.0 % 2,513 0.0 % — — Commercial and industrial 12,570 0.2 % 19,193 0.3 % 14,081 0.2 % Installment and other 73 0.0 % 81 0.0 % 105 0.0 % Total purchased credit deteriorated loans $ 104,951 1.4 % $ 117,207 1.6 % $ 127,635 1.8 % Acquired non-credit-deteriorated loans and leases: Commercial real estate $ 200,089 2.7 % $ 215,801 2.9 % $ 199,531 2.9 % Residential real estate 169,478 2.3 % 178,896 2.4 % 182,165 2.6 % Construction, land development, and other land 45,542 0.6 % 50,493 0.7 % 59,673 0.9 % Commercial and industrial 97,786 1.3 % 106,827 1.4 % 93,969 1.4 % Installment and other 14,263 0.2 % 14,133 0.2 % 14 0.0 % Leasing financing receivables — — — — 36 0.0 % Total acquired non-credit-deteriorated loans and leases $ 527,158 7.1 % $ 566,150 7.6 % $ 535,388 7.8 % Total loans and leases $ 7,509,369 100.0 % $ 7,440,755 100.0 % $ 6,906,822 100.0 % Allowance for credit losses - loans and leases (108,834 ) (105,717 ) (97,988 ) Total loans and leases, net of allowance for credit losses - loans and leases $ 7,400,535 $ 7,335,038 $ 6,808,834 The following table presents the balance and activity within the allowance for credit losses - loans and lease for the periods indicated: Three Months Ended Year Ended December 31, 2025 September 30, 2025 December 31, 2024 December 31, 2025 December 31, 2024 (dollars in thousands) ACL - loans and leases, beginning of period $ 105,717 $ 107,727 $ 98,860 $ 97,988 $ 101,686 Adjustment for acquired PCD loans — — — 3,206 — Provision for credit losses - loans and leases 9,824 5,097 6,920 35,754 28,286 Net charge-offs - loans and leases (6,707 ) (7,107 ) (7,792 ) (28,114 ) (31,984 ) ACL - loans and leases, end of period $ 108,834 $ 105,717 $ 97,988 $ 108,834 $ 97,988 Net charge-offs - loans and leases to average total loans and leases held for investment, net before ACL 0.36 % 0.38 % 0.45 % 0.39 % 0.47 % Provision for credit losses - loans and leases to net charge-offs - loans and leases during the period 1.46 x 0.72 x 0.89 x 1.27 x 0.88 x BYLINE BANCORP, INC. AND SUBSIDIARIES SELECTED BALANCE SHEET TABLES AND FINANCIAL RATIOS (unaudited) The following table presents the amounts of non-performing loans and leases and other real estate owned at the date indicated: December 31, 2025 Change from (dollars in thousands) December 31, 2025 September 30, 2025 December 31, 2024 September 30, 2025 December 31, 2024 Non-performing assets: Non-accrual loans and leases $ 71,290 $ 63,158 $ 62,076 12.9 % 14.8 % Past due loans and leases 90 days or more and still accruing interest — — — —% —% Total non-performing loans and leases $ 71,290 $ 63,158 $ 62,076 12.9 % 14.8 % Other real estate owned 3,394 4,220 5,170 (19.6 )% (34.4 )% Total non-performing assets $ 74,684 $ 67,378 $ 67,246 10.8 % 11.1 % Total non-performing loans and leases as a percentage of total loans and leases 0.95 % 0.85 % 0.90 % Total non-performing assets as a percentage of total assets 0.77 % 0.69 % 0.71 % Allowance for credit losses - loans and lease as a percentage of non-performing loans and leases 152.66 % 167.38 % 157.85 % Non-performing assets guaranteed by U.S. government: Non-accrual loans guaranteed $ 9,716 $ 8,417 $ 9,862 15.4 % (1.5 )% Past due loans 90 days or more and still accruing interest guaranteed — — — —% —% Total non-performing loans guaranteed $ 9,716 $ 8,417 $ 9,862 15.4 % (1.5 )% Total non-performing loans and leases not guaranteed as a percentage of total loans and leases 0.82 % 0.74 % 0.76 % Total non-performing assets not guaranteed as a percentage of total assets 0.67 % 0.60 % 0.60 % The following table presents the composition of deposits at the dates indicated: December 31, 2025 Change from (dollars in thousands) December 31, 2025 September 30, 2025 December 31, 2024 September 30, 2025 December 31, 2024 Non-interest-bearing demand deposits $ 1,818,888 $ 1,932,869 $ 1,756,098 (5.9 )% 3.6 % Interest-bearing checking accounts 878,638 868,922 767,835 1.1 % 14.4 % Money market demand accounts 2,942,927 2,957,995 2,518,157 (0.5 )% 16.9 % Other savings 489,504 488,894 483,650 0.1 % 1.2 % Time deposits (below $250,000) 1,096,015 1,151,764 1,498,277 (4.8 )% (26.8 )% Time deposits ($250,000 and above) 421,471 427,753 434,611 (1.5 )% (3.0 )% Total deposits $ 7,647,443 $ 7,828,197 $ 7,458,628 (2.3 )% 2.5 % BYLINE BANCORP, INC. AND SUBSIDIARIES RECONCILIATION OF NON-GAAP FINANCIAL MEASURES (unaudited) Non-GAAP Financial Measures This release contains certain financial information determined by methods other than in accordance with accounting principles generally accepted in the United States of America (“GAAP”). These measures include adjusted net income, adjusted diluted earnings per share, adjusted non-interest expense, adjusted non-interest expense excluding amortization of intangible assets, adjusted efficiency ratio, adjusted non-interest expense to average assets, tax equivalent net interest income, tax-equivalent net interest margin, total revenue, non-interest income to total revenues, adjusted return on average stockholders’ equity, adjusted return on average assets, pre-tax pre-provision net income, adjusted pre-tax pre-provision net income, pre-tax pre-provision return on average assets, adjusted pre-tax pre-provision return on average assets, tangible common equity, tangible assets, tangible net income available to common stockholders, adjusted tangible net income available to common stockholders, tangible book value per common share, tangible common equity to tangible assets, return on average tangible common stockholders' equity, and adjusted return on average tangible common stockholders' equity. Management believes that these non-GAAP financial measures provide useful information to management and investors that is supplementary to the Company’s financial condition, results of operations and cash flows computed in accordance with GAAP; however, management acknowledges that our non-GAAP financial measures have a number of limitations. As such, these disclosures should not be viewed as a substitute for results determined in accordance with GAAP financial measures that we and other companies use. Management also uses these measures for peer comparison. See below in the financial schedules included in this press release for a reconciliation of the non-GAAP financial measures to the comparable GAAP financial measures. Additionally, please refer to the Company’s Annual Report on Form 10-K for the detailed definitions of these non-GAAP financial measures. As of or For the Three Months Ended As of or For the Year Ended December 31, 2025 September 30, 2025 December 31, 2024 December 31, 2025 December 31, 2024 (dollars in thousands, except per share data) Net income and earnings per share excluding significant items: Reported Net Income $ 34,521 $ 37,200 $ 30,320 $ 130,051 $ 120,759 Significant items: Impairment charges on assets held for sale and ROU assets 195 — — 195 194 Merger-related expenses — — 218 5,087 629 Secondary public offering of common stock expenses — — — 413 — Loss on extinguishment of debt — 843 — 843 — Tax benefit (50 ) (221 ) (1 ) (1,522 ) (85 ) Adjusted Net Income $ 34,666 $ 37,822 $ 30,537 $ 135,067 $ 121,497 Reported Diluted Earnings per Share $ 0.76 $ 0.82 $ 0.69 $ 2.89 $ 2.75 Significant items: Impairment charges on assets held for sale and ROU assets — — — — — Merger-related expenses — — — 0.11 0.01 Secondary public offering of common stock expenses — — — 0.01 — Loss on extinguishment of debt — 0.02 — 0.02 — Tax benefit — (0.01 ) — (0.03 ) — Adjusted Diluted Earnings per Share $ 0.76 $ 0.83 $ 0.69 $ 3.00 $ 2.76 BYLINE BANCORP, INC. AND SUBSIDIARIES RECONCILIATION OF NON-GAAP FINANCIAL MEASURES (continued) (unaudited) As of or For the Three Months Ended As of or For the Year Ended (dollars in thousands, except per share data, December 31, 2025 September 30, 2025 December 31, 2024 December 31, 2025 December 31, 2024 ratios annualized, where applicable) Adjusted non-interest expense: Non-interest expense $ 60,369 $ 60,518 $ 57,431 $ 236,918 $ 218,777 Less: Impairment charges on assets held for sale and ROU assets 195 — — 195 194 Less: Merger-related expenses — — 218 5,087 629 Less: Secondary public offering of common stock expenses — — — 413 — Less: Loss on extinguishment of debt — 843 — 843 — Adjusted non-interest expense $ 60,174 $ 59,675 $ 57,213 $ 230,380 $ 217,954 Adjusted non-interest expense excluding amortization of intangible assets: Adjusted non-interest expense $ 60,174 $ 59,675 $ 57,213 $ 230,380 $ 217,954 Less: Amortization of intangible assets 1,494 1,494 1,345 5,605 5,380 Adjusted non-interest expense excluding amortization of intangible assets $ 58,680 $ 58,181 $ 55,868 $ 224,775 $ 212,574 Pre-tax pre-provision net income: Pre-tax income $ 46,934 $ 49,919 $ 40,364 $ 173,253 $ 161,079 Add: Provision for credit losses 9,702 5,298 6,878 36,102 27,041 Pre-tax pre-provision net income $ 56,636 $ 55,217 $ 47,242 $ 209,355 $ 188,120 Adjusted pre-tax pre-provision net income: Pre-tax pre-provision net income $ 56,636 $ 55,217 $ 47,242 $ 209,355 $ 188,120 Add: Impairment charges on assets held for sale and ROU assets 195 — — 195 194 Add: Merger-related expenses — — 218 5,087 629 Add: Secondary public offering of common stock expenses — — — 413 — Add: Loss on extinguishment of debt — 843 — 843 — Adjusted pre-tax pre-provision net income $ 56,831 $ 56,060 $ 47,460 $ 215,893 $ 188,943 Tax equivalent net interest income: Net interest income $ 101,255 $ 99,890 $ 88,524 $ 385,348 $ 348,046 Add: Tax-equivalent adjustment 213 228 230 901 921 Net interest income, fully taxable equivalent $ 101,468 $ 100,118 $ 88,754 $ 386,249 $ 348,967 Total revenue: Net interest income $ 101,255 $ 99,890 $ 88,524 $ 385,348 $ 348,046 Add: Non-interest income 15,750 15,845 16,149 60,925 $ 58,851 Total revenue $ 117,005 $ 115,735 $ 104,673 $ 446,273 $ 406,897 Tangible common stockholders' equity: Total stockholders' equity $ 1,267,906 $ 1,237,682 $ 1,091,497 $ 1,267,906 $ 1,091,497 Less: Goodwill and other intangibles 200,520 202,014 198,098 200,520 198,098 Tangible common stockholders' equity $ 1,067,386 $ 1,035,668 $ 893,399 $ 1,067,386 $ 893,399 Tangible assets: Total assets $ 9,652,676 $ 9,812,375 $ 9,496,529 $ 9,652,676 $ 9,496,529 Less: Goodwill and other intangibles 200,520 202,014 198,098 200,520 198,098 Tangible assets $ 9,452,156 $ 9,610,361 $ 9,298,431 $ 9,452,156 $ 9,298,431 Average tangible common stockholders' equity: Average total stockholders' equity $ 1,290,789 $ 1,208,290 $ 1,094,025 $ 1,197,476 $ 1,040,515 Less: Average goodwill and other intangibles 201,251 202,723 198,697 201,328 200,740 Average tangible common stockholders' equity $ 1,089,538 $ 1,005,567 $ 895,328 $ 996,148 $ 839,775 Average tangible assets: Average total assets $ 9,683,103 $ 9,716,920 $ 9,201,635 $ 9,556,954 $ 9,187,342 Less: Average goodwill and other intangibles 201,251 202,723 198,697 201,328 200,740 Average tangible assets $ 9,481,852 $ 9,514,197 $ 9,002,938 $ 9,355,626 $ 8,986,602 Tangible net income: Net income available to common stockholders $ 34,521 $ 37,200 $ 30,320 $ 130,051 $ 120,759 Add: After-tax intangible asset amortization 1,104 1,103 1,015 4,140 3,974 Tangible net income $ 35,625 $ 38,303 $ 31,335 $ 134,191 $ 124,733 Adjusted tangible net income: Tangible net income $ 35,625 $ 38,303 $ 31,335 $ 134,191 $ 124,733 Add: Impairment charges on assets held for sale and ROU assets 195 — — 195 194 Add: Merger-related expenses — — 218 5,087 629 Add: Secondary public offering of common stock expenses — — — 413 — Add: Loss on extinguishment of debt — 843 — 843 — Add: Tax benefit on significant items (50 ) (221 ) (1 ) (1,522 ) (85 ) Adjusted tangible net income $ 35,770 $ 38,925 $ 31,552 $ 139,207 $ 125,471 BYLINE BANCORP, INC. AND SUBSIDIARIES RECONCILIATION OF NON-GAAP FINANCIAL MEASURES (continued) (unaudited) As of or For the Three Months Ended As of or For the Year Ended (dollars in thousands, except share and per share December 31, 2025 September 30, 2025 December 31, 2024 December 31, 2025 December 31, 2024 data, ratios annualized, where applicable) Pre-tax pre-provision return on average assets: Pre-tax pre-provision net income $ 56,636 $ 55,217 $ 47,242 $ 209,355 $ 188,120 Average total assets 9,683,103 9,716,920 9,201,635 9,556,954 9,187,342 Pre-tax pre-provision return on average assets 2.32 % 2.25 % 2.04 % 2.19 % 2.05 % Adjusted pre-tax pre-provision return on average assets: Adjusted pre-tax pre-provision net income $ 56,831 $ 56,060 $ 47,460 $ 215,893 $ 188,943 Average total assets 9,683,103 9,716,920 9,201,635 9,556,954 9,187,342 Adjusted pre-tax pre-provision return on average assets 2.33 % 2.29 % 2.05 % 2.26 % 2.06 % Net interest margin, fully taxable equivalent: Net interest income, fully taxable equivalent $ 101,468 $ 100,118 $ 88,754 $ 386,249 $ 348,967 Total average interest-earning assets 9,230,799 9,288,078 8,785,176 9,130,196 8,774,014 Net interest margin, fully taxable equivalent 4.36 % 4.28 % 4.02 % 4.23 % 3.98 % Non-interest income to total revenues: Non-interest income $ 15,750 $ 15,845 $ 16,149 $ 60,925 $ 58,851 Total revenues 117,005 115,735 104,673 446,273 406,897 Non-interest income to total revenues 13.46 % 13.69 % 15.43 % 13.65 % 14.46 % Adjusted non-interest expense to average assets: Adjusted non-interest expense $ 60,174 $ 59,675 $ 57,213 $ 230,380 $ 217,954 Average total assets 9,683,103 9,716,920 9,201,635 9,556,954 9,187,342 Adjusted non-interest expense to average assets 2.47 % 2.44 % 2.47 % 2.41 % 2.37 % Adjusted efficiency ratio: Adjusted non-interest expense excluding amortization of intangible assets $ 58,680 $ 58,181 $ 55,868 $ 224,775 $ 212,574 Total revenues 117,005 115,735 104,673 446,273 406,897 Adjusted efficiency ratio 50.15 % 50.27 % 53.37 % 50.37 % 52.24 % Adjusted return on average assets: Adjusted net income $ 34,666 $ 37,822 $ 30,537 $ 135,067 $ 121,497 Average total assets 9,683,103 9,716,920 9,201,635 9,556,954 9,187,342 Adjusted return on average assets 1.42 % 1.54 % 1.32 % 1.41 % 1.32 % Adjusted return on average stockholders' equity: Adjusted net income $ 34,666 $ 37,822 $ 30,537 $ 135,067 $ 121,497 Average stockholders' equity 1,290,789 1,208,290 1,094,025 1,197,476 1,040,515 Adjusted return on average stockholders' equity 10.65 % 12.42 % 11.10 % 11.28 % 11.68 % Tangible common equity to tangible assets: Tangible common equity $ 1,067,386 $ 1,035,668 $ 893,399 $ 1,067,386 $ 893,399 Tangible assets 9,452,156 9,610,361 9,298,431 9,452,156 9,298,431 Tangible common equity to tangible assets 11.29 % 10.78 % 9.61 % 11.29 % 9.61 % Return on average tangible common stockholders' equity: Tangible net income available to common stockholders $ 35,625 $ 38,303 $ 31,335 $ 134,191 $ 124,733 Average tangible common stockholders' equity 1,089,538 1,005,567 895,328 996,148 839,775 Return on average tangible common stockholders' equity 12.97 % 15.11 % 13.92 % 13.47 % 14.85 % Adjusted return on average tangible common stockholders' equity: Adjusted tangible net income available to common stockholders $ 35,770 $ 38,925 $ 31,552 $ 139,207 $ 125,471 Average tangible common stockholders' equity 1,089,538 1,005,567 895,328 996,148 839,775 Adjusted return on average tangible common stockholders' equity 13.02 % 15.36 % 14.02 % 13.97 % 14.94 % Tangible book value per share: Tangible common equity $ 1,067,386 $ 1,035,668 $ 893,399 $ 1,067,386 $ 893,399 Common shares outstanding 45,545,928 45,859,977 44,459,584 45,545,928 44,459,584 Tangible book value per share $ 23.44 $ 22.58 $ 20.09 $ 23.44 $ 20.09 Investors / Media: Brooks O. Rennie Investor Relations Director (312) 660-5805 [email protected] Source: Byline Bancorp, Inc.