Form 8-K

8-K — FNB CORP/PA/

Accession: 0000037808-26-000027

Filed: 2026-10-20

Period: 2026-10-19

CIK: 0000037808

SIC: 6021 (NATIONAL COMMERCIAL BANKS)

Item: Results of Operations and Financial Condition

Item: Financial Statements and Exhibits

Documents

8-K — fnb-20261019.htm (Primary)

EX-99.1 (fnbex991earningsreleaseq32.htm)

GRAPHIC (earningsheadera.jpg)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

Filename: fnb-20261019.htm · Sequence: 1

fnb-20261019

FNB CORP/PA/0000037808false00000378082026-10-192026-10-19

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT PURSUANT

TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): October 19, 2026

F.N.B. CORPORATION

(Exact name of registrant as specified in its charter)

Pennsylvania

(State or Other Jurisdiction of Incorporation)

001-31940 25-1255406

(Commission File Number) (IRS Employer Identification No.)

626 Washington Place, Pittsburgh, PA 15219

(Address of Principal Executive Offices) (Zip Code)

(800) 555-5455

(Registrant's telephone number, including area code)

N/A

(Former name or former address, if changed since last report)

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class Trading Symbol(s) Name of Exchange on which Registered

Common Stock, par value $0.01 per share FNB New York Stock Exchange

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

ITEM 2.02 RESULTS OF OPERATIONS AND FINANCIAL CONDITION

On October 19, 2026, F.N.B. Corporation announced financial results for the quarter ended September 30, 2026. A copy of the press release announcing our results for the quarter ended September 30, 2026 is attached hereto as Exhibit 99.1 and incorporated by reference herein.

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS

(d) Exhibits:

Exhibit Number Description

99.1

Press release dated October 19, 2026 announcing the financial results of F.N.B. Corporation for the quarter ended September 30, 2026.

104 Cover Page Interactive Data File (the cover page XBRL tags are embedded within the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

F.N.B. CORPORATION

(Registrant)

By: /s/ Vincent J. Calabrese, Jr.

Name: Vincent J. Calabrese, Jr.

Title: Chief Financial Officer

(Principal Financial Officer)

Dated: October 20, 2026

EX-99.1

Filename: fnbex991earningsreleaseq32.htm · Sequence: 2

Document

F.N.B. Corporation Reports Third Quarter 2026 Earnings

Record Net Interest Income Driven by Net Interest Margin (non-GAAP) Expansion and Loan and Deposit Annualized Growth of 8.5% and 8.9%, Respectively

PITTSBURGH, PA – October 19, 2026 – F.N.B. Corporation (NYSE: FNB) reported earnings for the third quarter of 2026 with net income of $152.9 million, or $0.43 per diluted common share. Comparatively, third quarter 2025 net income totaled $149.5 million, or $0.41 per diluted common share, and second quarter 2026 net income totaled $148.7 million, or $0.42 per diluted common share.

On an operating basis, there were no significant items impacting earnings for the third and second quarters of 2026. By comparison, third quarter of 2025 net income on an operating basis (non-GAAP) was $147.7 million, excluding $(2.3) million (pre-tax) of significant items impacting earnings.

“F.N.B. Corporation delivered another strong quarter with $0.43 earnings per diluted common share, bringing year-to-date earnings to $1.23 per diluted common share, a 13% increase over the same period in 2025. For the third quarter of 2026, we generated record net interest income, expanded net interest margin and increased tangible book value per common share (non-GAAP) 7% year over year, while continuing to return capital through share repurchase activity and an attractive dividend,” said F.N.B. Corporation Chairman, President and Chief Executive Officer, Vince Delie. “FNB continues to leverage technology investments to gain market share throughout our diverse geographic footprint with 8.5% annualized loan growth and 8.9% annualized deposit growth, both of which align with our long-term organic growth trajectory. Our consistent underwriting standards contributed to solid credit quality results for the quarter. By strategically investing in innovative technology to grow primary relationships and low-cost deposits, while also maintaining a focus on expanding high-value fee-based businesses to diversify revenue streams, we are building a stronger, more resilient franchise. The investments in these initiatives contributed to a strong third quarter performance and create sustainable value for the future.”

Third Quarter 2026 Highlights

(All comparisons refer to the third quarter of 2025, except as noted)

•Average loans and leases totaled $36.1 billion, an increase of $1.3 billion, or 3.7%, with growth of $1.2 billion in average consumer loans and $115.4 million in average commercial loans and leases.

•On a linked-quarter basis, period-end total loans and leases increased $768.0 million, or 8.5% annualized, with growth in consumer loans and commercial loans and leases of $435.3 million and $332.7 million, respectively.

•Average deposits totaled $38.8 billion, an increase of $914.1 million, or 2.4%, reflecting growth in average interest-bearing demand deposits of $640.6 million, average money market deposits of $443.8 million, average non-interest-bearing demand deposits of $134.0 million, and average savings deposits of $30.6 million more than offsetting the decline in average time deposits of $334.8 million.

•On a linked-quarter basis, period-end total deposits increased $870.6 million, or 8.9% annualized, driven by growth in money market deposits of $710.9 million, interest-bearing demand deposits of $239.0 million and non-interest-bearing demand deposits of $77.5 million more than offsetting the decline in time deposits of $121.4 million.

•The loan-to-deposit ratio was 92.4% at September 30, 2026, compared to 92.5% at June 30, 2026, and 90.9% at September 30, 2025.

•Net interest income totaled $376.5 million, a linked-quarter increase of $10.8 million, or 3.0%, primarily due to growth in earning assets, higher yields on earning assets (non-GAAP) and the

impact of one more day in the current quarter more than offsetting a slight increase in the cost of funds. Net interest margin (FTE) (non-GAAP) equaled 3.29%, an increase of 4 basis points from the second quarter 2026 level with stable interest-bearing deposit costs and higher yields on earning assets. The Federal Open Market Committee (FOMC) increased the target federal funds rate by 25 basis points in September 2026.

•Pre-provision net revenue (non-GAAP) totaled $212.2 million, with the 1.3% increase from the prior quarter driven by record net interest income.

•Provision for credit losses was $19.6 million, a decrease of $1.7 million from the prior quarter, with net charge-offs of $11.0 million, or 0.12% annualized of total average loans, compared to $17.0 million, or 0.19% annualized, in the prior quarter. The ratio of non-performing loans and other real estate owned (OREO) to total loans and leases and OREO increased 2 basis points from the prior quarter to 0.33%, and total delinquency increased 4 basis points from the prior quarter to 0.75%. The allowance for credit losses (ACL) to total loans and leases ratio remained stable at 1.25%. Overall asset quality metrics remain at satisfactory levels.

•The Common Equity Tier 1 (CET1) regulatory capital ratio ended the quarter at 11.3% (estimated), compared to 11.1% at September 30, 2025, and 11.4% at June 30, 2026. The tangible common equity to tangible assets ratio (non-GAAP) equaled 8.7%, compared to 8.7% at September 30, 2025, and 8.9% at June 30, 2026.

•Tangible book value per common share (non-GAAP) of $12.28 increased $0.80, or 7.0%, compared to September 30, 2025, and $0.04, or 0.3%, compared to June 30, 2026. Accumulated other comprehensive income/loss (AOCI) reduced the tangible book value per common share (non-GAAP) by $0.53 as of September 30, 2026, primarily due to the impact of higher interest rates on the fair value of available-for-sale (AFS) securities, compared to a reduction of $0.22 as of September 30, 2025, and $0.29 as of June 30, 2026.

•During the third quarter of 2026, the Company repurchased $51 million, or 2.7 million shares, of common stock at a weighted average share price of $18.69. Year-to-date, the Company repurchased $133 million, or 7.4 million shares, of common stock at a weighted average share price of $17.90, representing 2.1% of shares outstanding at the beginning of the year.

Non-GAAP financial measures referenced in this release are used by management to measure performance in operating the business that management believes enhances investors' ability to better understand the underlying business performance and trends related to core business activities. Reconciliations of non-GAAP financial measures to the most directly comparable GAAP financial measures are included in the tables at the end of this release. For more information regarding our use of non-GAAP measures, please refer to the discussion herein under the caption, "Use of Non-GAAP Financial Measures and Key Performance Indicators."

Quarterly Results Summary 3Q26 2Q26 3Q25

Reported results

Net income available to common shareholders (millions) $ 152.9 $ 148.7 $ 149.5

Earnings per diluted common share 0.43 0.42 0.41

Book value per common share 19.42 19.34 18.52

Pre-provision net revenue (non-GAAP) (millions) 212.2 209.4 213.9

Operating results (non-GAAP)

Operating net income available to common shareholders (millions) $ 152.9 $ 148.7 $ 147.7

Operating earnings per diluted common share 0.43 0.42 0.41

Operating pre-provision net revenue (millions) 212.2 209.4 211.6

Average diluted common shares outstanding (thousands) 354,965 357,414 361,670

Significant items impacting earnings(a) (millions)

FDIC special assessment reduction (pre-tax) $ — $ — $ 2.3

FDIC special assessment reduction (after-tax) — — 1.8

Total significant items (pre-tax) $ — $ — $ 2.3

Total significant items (after-tax) $ — $ — $ 1.8

Capital measures

Common equity tier 1 (b)

11.3 % 11.4 % 11.1 %

Tangible common equity to tangible assets (non-GAAP) 8.69 8.93 8.69

Tangible book value per common share (non-GAAP) $ 12.28 $ 12.24 $ 11.48

(a) Favorable (unfavorable) impact on earnings.

(b) Estimated for 3Q26.

Third Quarter 2026 Results – Comparison to Prior-Year Quarter

(All comparisons refer to the third quarter of 2025, except as noted.)

Net interest income totaled $376.5 million, an increase of $17.3 million, or 4.8%, reflecting growth in average earning assets and lower interest-bearing deposit costs, partially offset by lower yields on earning assets. The net interest margin (FTE) (non-GAAP) increased 4 basis points to 3.29%. The yield on earning assets (non-GAAP) decreased 18 basis points to 5.18%, driven by a 23 basis point decline in yields on loans to 5.56%. Total cost of funds decreased 22 basis points to 2.01%, with a 47 basis point decrease in total borrowing costs to 4.17%, and a 29 basis point decrease in interest-bearing deposit costs to 2.37%.

Average loans and leases totaled $36.1 billion, an increase of $1.3 billion, or 3.7%, including growth of $1.2 billion in consumer loans and $115.4 million in commercial loans and leases. Average commercial and industrial loans increased $856.0 million, or 11.3%, more than offsetting the decline in average commercial real estate loans of $735.7 million, or 5.8%. Solid commercial and industrial loan growth benefited from strong equipment finance production and growth in the Charlotte, Pittsburgh and other Pennsylvania markets. Average consumer loans included an $877.8 million, or 10.0%, increase in residential mortgage loans largely due to the long-standing strategy of serving the purchase market, partially offset by the sale of approximately $200 million of performing residential mortgage loans in February 2026. Average consumer lines of credit increased $187.8 million, or 12.9%, and indirect auto loans increased $135.3 million, or 17.4%, both reflecting solid organic growth in the respective portfolios.

Average deposits totaled $38.8 billion, an increase of $914.1 million, or 2.4%, with growth in average interest-bearing demand deposits of $640.6 million, average money market deposits of $443.8 million, average non-interest-bearing demand deposits of $134.0 million, and average savings deposits of $30.6 million more than offsetting the decline in average time deposits of $334.8 million. The mix of non-interest-bearing demand deposits to total deposits was stable at 26% at both September 30, 2026, and September 30, 2025. The loan-to-deposit ratio was 92.4% at September 30, 2026, compared to 90.9% at September 30, 2025.

Non-interest income totaled $92.6 million, a decrease of $5.6 million, or 5.7%. Service charges increased $1.3 million, or 5.7%, primarily from increased treasury management fee revenue and higher consumer transaction volumes. Wealth management revenues increased $0.8 million, or 3.7%, as trust services income and securities commissions and fees increased 4.3% and 2.9%, respectively, through continued strong contributions across the geographic footprint. Mortgage banking operations income decreased $3.6 million, or 39.4%, driven by tighter gain-on-sale margins and net fair value adjustments given the volatility of interest rates during the quarter. Capital markets income of $6.4 million reflected solid contributions from our numerous businesses while decreasing $1.5 million, or 18.4%, primarily due to the record debt capital markets and international banking income in the year-ago quarter. Other non-interest income decreased $5.5 million, or 59.5%, primarily due to a $5.4 million recovery in the year-ago quarter on an asset that was previously written off as part of a 2017 acquisition.

Non-interest expense totaled $256.9 million, increasing $13.4 million, or 5.5%. When adjusting for ($2.3) million1 of significant items in the third quarter of 2025, operating non-interest expense (non-GAAP) increased $11.1 million, or 4.5%. Net occupancy and equipment increased $6.2 million, or 13.9%,

1 Third quarter 2025 non-interest expense significant items impacting earnings included a ($2.3) million (pre-tax) reduction in the estimated Federal Deposit Insurance Company (FDIC) special assessment related to the 2023 bank failures.

primarily due to technology-related investments and higher occupancy costs. Outside services increased $4.0 million, or 15.3%, driven by higher third-party legal and consulting costs.

The ratio of non-performing loans and OREO to total loans and OREO decreased 4 basis points to 0.33%, and total delinquency increased 10 basis points to 0.75%. Overall asset quality metrics remain at satisfactory levels.

The provision for credit losses was $19.6 million, compared to $24.0 million. The third quarter of 2026 reflected net charge-offs of $11.0 million, or 0.12% annualized of total average loans, compared to $19.7 million, or 0.22% annualized of total average loans. The ACL was $455.5 million, an increase of $18.2 million, with the ratio of the ACL to total loans and leases remaining stable at 1.25%.

The effective tax rate was 20.6%, compared to 21.3% in the third quarter of 2025.

The CET1 regulatory capital ratio was 11.3% (estimated) at September 30, 2026, and 11.1% at September 30, 2025. Tangible book value per common share (non-GAAP) was $12.28 at September 30, 2026, an increase of $0.80, or 7.0%, from $11.48 at September 30, 2025. AOCI reduced tangible book value per common share (non-GAAP) by $0.53 as of September 30, 2026, primarily due to the impact of higher interest rates on the fair value of AFS securities, compared to a reduction of $0.22 at September 30, 2025.

Third Quarter 2026 Results – Comparison to Prior Quarter

(All comparisons refer to the second quarter of 2026, except as noted.)

Net interest income totaled $376.5 million, an increase of $10.8 million, or 3.0%, primarily due to growth in earning assets, higher yields on earning assets (non-GAAP) and the impact of one more day in the current quarter more than offsetting the slightly higher cost of funds. Net interest margin (FTE) (non-GAAP) was 3.29%, an increase of 4 basis points. The total yield on earning assets (non-GAAP) increased 5 basis points to 5.18%, and the total cost of funds increased 2 basis points to 2.01%. The cost of interest-bearing deposits was stable with only a 1 basis point increase to 2.37%. The FOMC increased the target federal funds rate by 25 basis points in September 2026.

Average loans and leases totaled $36.1 billion, an increase of $613.4 million, or 6.9% annualized, as average consumer loans increased $550.7 million and average commercial loans and leases increased $62.7 million. For consumer lending, average residential mortgages increased $403.9 million driven by seasonal growth in mortgage originations. Average indirect auto loans increased $88.6 million and average consumer lines of credit increased $52.0 million, both reflecting solid organic growth. Average commercial loans and leases growth reflected an increase of $237.4 million in average commercial and industrial loans, partially offset by a decline of $175.2 million in average commercial real estate loans due to continued expected payoff activity. Commercial and industrial loan growth was primarily driven by lower risk-rated, high-quality lending in the Cleveland and Pennsylvania markets.

Average deposits totaled $38.8 billion, an increase of $146.1 million, due to organic growth in new and existing customer relationships. The growth was primarily driven by average money market deposits of $133.2 million, average non-interest-bearing demand deposits of $97.0 million, and average interest-bearing demand deposits of $57.0 million, partially offset by a decline in average time deposits of $151.6 million caused by shifts in customer preferences from higher interest rate expectations. Period-end total deposits increased $870.6 million, or 8.9% annualized. The mix of non-interest-bearing demand deposits to total deposits was stable at 26% for both September 30, 2026, and June 30, 2026. The loan-to-deposit ratio was 92.4% at September 30, 2026, compared to 92.5% at June 30, 2026.

Non-interest income totaled $92.6 million, a decrease of $4.4 million, or 4.5%, from the prior quarter. Service charges increased $0.8 million, or 3.2%, and interchange and card transaction fees increased

$0.2 million, or 1.4%, both driven by strong treasury management activity and seasonally higher consumer transactions. Capital markets income of $6.4 million reflected solid contributions from our numerous businesses, while decreasing $1.6 million, or 19.9%, primarily due to strong debt capital markets income in the prior quarter. Other non-interest income decreased $3.3 million, or 46.8%, primarily due to higher residual gains on equipment leases in the prior quarter.

Non-interest expense totaled $256.9 million, an increase of $3.7 million, or 1.5%, compared to the prior quarter. Salaries and employee benefits expense declined $2.8 million, or 2.0%, primarily due to lower variable compensation in the current quarter. Outside services increased $1.8 million, or 6.3%, primarily due to higher third-party legal costs. Net occupancy and equipment increased $1.3 million, or 2.7%, primarily due to technology-related investments. The increase in linked-quarter other non-interest expense of $2.6 million, or 11.2%, reflected higher costs largely related to fraud losses. The efficiency ratio (non-GAAP) totaled 53.7%, stable to the prior quarter.

The ratio of non-performing loans and OREO to total loans and OREO increased 2 basis points to 0.33%, and delinquency increased 4 basis points to 0.75%. Overall asset quality metrics remain at satisfactory levels.

The provision for credit losses was $19.6 million, compared to $21.4 million. The third quarter of 2026 reflected net charge-offs of $11.0 million, or 0.12% annualized of total average loans, compared to $17.0 million, or 0.19% annualized. The ACL was $455.5 million, an increase of $8.1 million, with the ratio of the ACL to total loans and leases remaining stable at 1.25%.

The effective tax rate was 20.6%, compared to 20.9%.

The CET1 regulatory capital ratio was 11.3% (estimated), stable to 11.4% at June 30, 2026. Tangible book value per common share (non-GAAP) was $12.28 at September 30, 2026, an increase of $0.04 per share. AOCI reduced the current quarter-end tangible book value per common share (non-GAAP) by $0.53 as of September 30, 2026, primarily due to the impact of higher interest rates on the fair value of AFS securities, compared to $0.29 at June 30, 2026.

Use of Non-GAAP Financial Measures and Key Performance Indicators

To supplement our Consolidated Financial Statements presented in accordance with GAAP, we use certain non-GAAP financial measures, such as operating net income available to common shareholders,

operating earnings per diluted common share, return on average tangible common equity, return on average tangible assets, tangible book value per common share, the ratio of tangible common equity to tangible assets, pre-provision net revenue (reported), operating pre-provision net revenue, efficiency ratio, and net interest margin (FTE) to provide information useful to investors in understanding our operating performance and trends, and to facilitate comparisons with the performance of our peers. Management uses these measures internally to assess and better understand our underlying business performance and trends related to core business activities. The non-GAAP financial measures and key performance indicators we use may differ from the non-GAAP financial measures and key performance indicators other financial institutions use to assess their performance and trends.

These non-GAAP financial measures should be viewed as supplemental in nature, and not as a substitute for, or superior to, our reported results prepared in accordance with GAAP. Reconciliations of non-GAAP financial measures to the most directly comparable GAAP financial measures are included later in this release under the heading “Reconciliations of Non-GAAP Financial Measures and Key Performance Indicators to GAAP.”

Management believes certain items (e.g., FDIC special assessment) are not organic to running our operations and facilities. These items are considered significant items impacting earnings as they are deemed to be outside of ordinary banking activities. These costs are specific to each individual

transaction and may vary significantly based on the size and complexity of the transaction.

To facilitate peer comparisons of net interest margin and efficiency ratio, we use net interest income on a taxable-equivalent basis in calculating net interest margin by increasing the interest income earned on tax-exempt assets (loans and investments) to make it fully equivalent to interest income earned on taxable investments (this adjustment is not permitted under GAAP). Taxable-equivalent amounts for 2026 and 2025 were calculated using a federal statutory income tax rate of 21%.

Cautionary Statement Regarding Forward-Looking Information

This release contains “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Forward‑looking statements are those that do not relate to historical facts and that are based on current assumptions, beliefs, estimates, expectations and projections, many of which, by their nature, are inherently uncertain and beyond our control. Forward-looking statements may relate to various matters, including our financial condition, results of operations, plans, objectives, future performance, business or industry, and usually can be identified by the use of forward-looking words, such as “anticipates,” “assumes,” “believes,” “can,” “continues,” “could,” “enables,” “estimates,” “expects,” “forecasts,” “goal,” “intends,” “likely,” “may,” “might,” “objective,” “plans,” “positioned,” “potential,” “projects,” “remains,” “should,” “target,” “trend,” “will,” “would,” or similar words or expressions or variations thereof, and the negative thereof, but these terms are not the exclusive means of identifying such statements. You should not place undue reliance on forward-looking statements, as they are subject to risks and uncertainties, including, but not limited to, those described below. When considering these forward-looking statements, you should keep in mind these risks and uncertainties, as well as any cautionary statements we may make.

There are various important factors that could cause future results to differ materially from historical performance and any forward-looking statements. Factors that might cause such differences, include, but are not limited to:

•the credit risk associated with the substantial amount of commercial loans and leases in our loan portfolio;

•the volatility of the mortgage banking business and real estate values, which can be influenced by economic conditions or trends, interest rates, and local market trends;

•changes in market interest rates, U.S. federal government shutdowns and the unpredictability of monetary, tax and other policies of government agencies, including tariffs or the imposition and enforceability of tariffs, trade wars, barriers or restrictions, threats of such actions or related uncertainties;

•the impact of changes in interest rates on the value of our investment securities portfolios;

•the impact that shifts in local and regional commercial real estate market conditions, interest rate fluctuations, geographic commercial office space availability and tenant demand and independent appraisal revisions and other factors beyond our control may have on our branch and headquarters properties and other real estate we own;

•changes in our ability to obtain liquidity as and when needed to fund our obligations as they come due, including as a result of adverse changes to our credit ratings;

•the risk associated with uninsured deposit account balances;

•regulatory limits on our ability to receive dividends from our subsidiaries and pay dividends to our shareholders;

•our ability to recruit and retain qualified banking professionals;

•the financial soundness of other financial institutions and the impact of volatility in the banking sector on us;

•changes and instability in economic conditions and financial markets, in the regions in which we operate or otherwise, including a contraction of economic activity, economic downturn or uncertainty and international conflict, including in the Middle East, disruption of supply chain and energy supply markets and capital markets, changes to inflation expectations and other related uncertainties;

•our ability to continue to invest in technological improvements and artificial intelligence solutions as they become appropriate or necessary;

•any interruption in or breach in security of our information systems, or other cybersecurity risks;

•risks associated with reliance on third-party vendors and related to our use of artificial intelligence in connection with business and operations;

•our capability to effectively deploy multi-layered defense strategies to mitigate risks associated with evolving artificial intelligence sourced fraud schemes;

•risks associated with the use of models, estimations and assumptions in our business;

•the effects of adverse weather events and public health emergencies;

•the risks associated with acquiring other banks and financial services businesses, including integration into our existing operations;

•the extensive federal and state regulations, supervision and examination governing almost every aspect of our operations, and potential expenses associated with complying with such regulations;

•our ability to comply with the consent orders entered into by First National Bank of Pennsylvania with the Department of Justice and the North Carolina State Department of Justice, and related costs and potential reputational harm;

•changes in federal, state or local tax rules and regulations or interpretations, or accounting policies, standards and interpretations;

•the effects of climate change and related legislative and regulatory initiatives; and

•any reputation, credit, interest rate, market, operational, litigation, legal, liquidity, regulatory and compliance risk resulting from developments related to any of the risks discussed above.

FNB cautions that the risks identified here are not exhaustive of the types of risks that may adversely impact FNB and actual results may differ materially from those expressed or implied as a result of these risks and uncertainties, including, but not limited to, the risk factors and other uncertainties described under Item 1A. Risk Factors and the Risk Management sections of our 2025 Annual Report on Form 10-K (including the MD&A section), our subsequent 2026 Quarterly Reports on Form 10-Q (including the risk factors and risk management discussions) and our other filings with the Securities and Exchange Commission (SEC), which are available on our corporate website at https://www.fnb-online.com/about-us/investor-information/reports-and-filings or the SEC’s website at www.sec.gov. We have included our web address as an inactive textual reference only. Information on our website is not part of our SEC filings.

You should treat forward-looking statements as speaking only as of the date they are made and based only on information then actually known to FNB. FNB does not undertake, and specifically disclaims any obligation to update, or revise any forward-looking statements to reflect the occurrence of events or circumstances after the date of such statements except as required by law.

Conference Call

F.N.B. Corporation (NYSE: FNB) announced the financial results for the third quarter of 2026 after the market close on Monday, October 19, 2026. Chairman, President and Chief Executive Officer, Vincent J. Delie, Jr., Chief Financial Officer, Vincent J. Calabrese, Jr., and Chief Credit Officer, Gary L. Guerrieri, plan to host a conference call to discuss the Company’s financial results on Tuesday, October 20, 2026, at 8:30 AM ET.

A live listen-only webcast of the conference call will be available under the Investor Relations section of the Corporation’s website at www.fnbcorporation.com. Participants can access the link under the “About Us” tab and clicking on “Investor Relations” then “Investor Conference Calls.” The live webcast will open approximately 30 minutes prior to the start of the call.

To participate in the Q&A portion of the call, dial 844-802-2440 (for domestic callers) or 412-317-5133 (for international callers). Pre-registration can be accessed at https://dpregister.com/sreg/10212076/104ea4927f4. Callers who pre-register will be provided a conference passcode and unique PIN to bypass the live operator and gain immediate access to the call.

Presentation slides and the earnings release will also be available under the Investor Relations section of the Corporation’s website at www.fnbcorporation.com.

Following the call, a replay of the conference call will be available via the webcast link under the Investor Relations section of the Corporation’s website at www.fnbcorporation.com.

About F.N.B. Corporation

F.N.B. Corporation (NYSE: FNB), headquartered in Pittsburgh, Pennsylvania, is a diversified financial services company operating in seven states and the District of Columbia. FNB’s market coverage spans several major metropolitan areas including: Pittsburgh, Pennsylvania; Baltimore, Maryland; Cleveland, Ohio; Washington, D.C.; Charlotte, Raleigh, Durham and the Piedmont Triad (Winston-Salem, Greensboro and High Point) in North Carolina; and Charleston, South Carolina. The Company has total assets of $52 billion and more than 355 banking offices throughout Pennsylvania, Ohio, Maryland, West Virginia, North Carolina, South Carolina, Washington, D.C. and Virginia.

FNB provides a full range of commercial banking, consumer banking and wealth management solutions through its subsidiary network which is led by its largest affiliate, First National Bank of Pennsylvania, founded in 1864. Commercial banking solutions include corporate banking, small business banking, investment real estate financing, government banking, business credit, capital markets and lease financing. The consumer banking segment provides a full line of consumer banking products and services, including deposit products, mortgage lending, consumer lending and a complete suite of mobile and online banking services. FNB's wealth management and advisory services include asset management, private banking and insurance.

The common stock of F.N.B. Corporation trades on the New York Stock Exchange under the symbol "FNB" and is included in Standard & Poor's MidCap 400 Index with the Global Industry Classification Standard (GICS) Regional Banks Sub-Industry Index. Customers, shareholders and investors can learn more about this regional financial institution by visiting the F.N.B. Corporation website at www.fnbcorporation.com.

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Analyst/Institutional Investor Contact:

Lisa Hajdu, 412-385-4773

hajdul@fnb-corp.com

Media Contact:

Jennifer Reel, 724-983-4856, 724-699-6389 (cell)

reel@fnb-corp.com

F.N.B. CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF INCOME

(Dollars in thousands, except per share data)

(Unaudited)

% Variance

3Q26 3Q26 For the Nine Months Ended

September 30, %

3Q26 2Q26 3Q25 2Q26 3Q25 2026 2025 Var.

Interest Income

Loans and leases, including fees $ 509,020 $ 493,541 $ 511,045 3.1 (0.4) $ 1,488,474 $ 1,492,386 (0.3)

Securities:

Taxable 66,947 63,808 59,718 4.9 12.1 191,895 171,736 11.7

Tax-exempt 6,646 6,685 6,923 (0.6) (4.0) 20,234 20,781 (2.6)

Other 13,367 13,979 18,286 (4.4) (26.9) 42,671 53,147 (19.7)

Total Interest Income 595,980 578,013 595,972 3.1 — 1,743,274 1,738,050 0.3

Interest Expense

Deposits 172,122 169,114 187,567 1.8 (8.2) 509,917 554,585 (8.1)

Short-term borrowings 24,999 19,522 17,764 28.1 40.7 62,455 51,999 20.1

Long-term borrowings 22,337 23,654 31,369 (5.6) (28.8) 69,379 101,153 (31.4)

Total Interest Expense 219,458 212,290 236,700 3.4 (7.3) 641,751 707,737 (9.3)

Net Interest Income 376,522 365,723 359,272 3.0 4.8 1,101,523 1,030,313 6.9

Provision for credit losses 19,640 21,361 23,991 (8.1) (18.1) 59,463 67,081 (11.4)

Net Interest Income After

Provision for Credit Losses 356,882 344,362 335,281 3.6 6.4 1,042,060 963,232 8.2

Non-Interest Income

Service charges 24,515 23,749 23,191 3.2 5.7 71,034 68,476 3.7

Interchange and card transaction fees 13,494 13,303 13,424 1.4 0.5 39,284 39,048 0.6

Trust services 12,151 12,574 11,647 (3.4) 4.3 37,556 35,638 5.4

Insurance commissions and fees 5,388 5,410 4,495 (0.4) 19.9 17,022 15,396 10.6

Securities commissions and fees 9,129 9,503 8,868 (3.9) 2.9 27,614 26,570 3.9

Capital markets income 6,423 8,014 7,875 (19.9) (18.4) 21,238 20,095 5.7

Mortgage banking operations 5,569 5,319 9,183 4.7 (39.4) 17,233 22,482 (23.3)

Dividends on non-marketable equity securities 7,489 6,733 6,110 11.2 22.6 20,467 17,838 14.7

Bank owned life insurance 4,668 5,331 4,208 (12.4) 10.9 14,109 13,396 5.3

Net securities gains (losses) 58 27 — 114.8 — 87 58 50.0

Other 3,715 6,988 9,169 (46.8) (59.5) 14,891 17,954 (17.1)

Total Non-Interest Income 92,599 96,951 98,170 (4.5) (5.7) 280,535 276,951 1.3

Non-Interest Expense

Salaries and employee benefits 132,848 135,603 131,575 (2.0) 1.0 404,158 396,552 1.9

Net occupancy 20,700 20,755 19,161 (0.3) 8.0 64,092 58,218 10.1

Equipment 30,338 28,962 25,662 4.8 18.2 87,391 79,535 9.9

Outside services 30,024 28,246 26,033 6.3 15.3 84,731 77,691 9.1

Marketing 4,332 3,954 5,517 9.6 (21.5) 11,887 15,107 (21.3)

FDIC insurance 8,677 8,278 6,351 4.8 36.6 24,405 23,756 2.7

Bank shares tax 4,443 4,442 3,959 — 12.2 13,462 12,055 11.7

Other 25,581 23,009 25,277 11.2 1.2 77,931 73,657 5.8

Total Non-Interest Expense 256,943 253,249 243,535 1.5 5.5 768,057 736,571 4.3

Income Before Income Taxes 192,538 188,064 189,916 2.4 1.4 554,538 503,612 10.1

Income tax expense (benefit) 39,676 39,343 40,407 0.8 (1.8) 115,909 106,918 8.4

Net Income $ 152,862 $ 148,721 $ 149,509 2.8 2.2 $ 438,629 $ 396,694 10.6

Earnings per Common Share

Basic $ 0.43 $ 0.42 $ 0.41 2.4 4.9 $ 1.23 $ 1.10 11.8

Diluted 0.43 0.42 0.41 2.4 4.9 1.23 1.09 12.8

Cash Dividends per Common Share 0.13 0.13 0.12 — 8.3 0.38 0.36 5.6

F.N.B. CORPORATION AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(Dollars in millions)

(Unaudited)

% Variance

3Q26 3Q26

3Q26 2Q26 3Q25 2Q26 3Q25

Assets

Cash and due from banks $ 416 $ 426 $ 474 (2.3) (12.2)

Interest-bearing deposits with banks 2,110 1,949 1,939 8.3 8.8

Cash and Cash Equivalents 2,526 2,375 2,413 6.4 4.7

Securities available for sale 3,747 3,758 3,620 (0.3) 3.5

Securities held to maturity 4,404 4,251 4,049 3.6 8.8

Loans held for sale 237 290 278 (18.3) (14.7)

Loans and leases, net of unearned income 36,537 35,769 34,957 2.1 4.5

Allowance for credit losses on loans and leases (456) (447) (437) 2.0 4.3

Net Loans and Leases 36,081 35,322 34,520 2.1 4.5

Premises and equipment, net 585 564 557 3.7 5.0

Goodwill 2,480 2,480 2,480 — —

Core deposit and other intangible assets, net 27 30 40 (10.0) (32.5)

Bank owned life insurance 676 674 668 0.3 1.2

Other assets 1,290 1,255 1,264 2.8 2.1

Total Assets $ 52,053 $ 50,999 $ 49,889 2.1 4.3

Liabilities

Deposits:

Non-interest-bearing $ 10,134 $ 10,056 $ 9,969 0.8 1.7

Interest-bearing 29,416 28,623 28,472 2.8 3.3

Total Deposits 39,550 38,679 38,441 2.3 2.9

Short-term borrowings 3,001 2,681 1,905 11.9 57.5

Long-term borrowings 1,803 2,002 2,099 (9.9) (14.1)

Other liabilities 886 798 808 11.0 9.7

Total Liabilities 45,240 44,160 43,253 2.4 4.6

Shareholders' Equity

Common stock 4 4 4 — —

Additional paid-in capital 4,694 4,691 4,693 0.1 —

Retained earnings 2,646 2,539 2,218 4.2 19.3

Accumulated other comprehensive loss (187) (103) (77) 81.6 142.9

Treasury stock (344) (292) (202) 17.8 70.3

Total Shareholders' Equity 6,813 6,839 6,636 (0.4) 2.7

Total Liabilities and Shareholders' Equity $ 52,053 $ 50,999 $ 49,889 2.1 4.3

F.N.B. CORPORATION AND SUBSIDIARIES

(Dollars in thousands)

(Unaudited)

3Q26 2Q26 3Q25

Interest Interest Interest

Average Income/ Yield/ Average Income/ Yield/ Average Income/ Yield/

Balance Expense Rate Balance Expense Rate Balance Expense Rate

Assets

Interest-bearing deposits with banks $ 1,546,215 $ 13,367 3.43 % $ 1,611,087 $ 13,979 3.48 % $ 1,738,570 $ 18,286 4.17 %

Taxable investment securities (1)

7,094,947 66,751 3.76 7,011,619 63,611 3.63 6,611,222 59,506 3.60

Tax-exempt investment securities (1) (2)

951,728 8,405 3.53 958,948 8,460 3.53 1,003,661 8,742 3.48

Loans held for sale 281,326 5,172 7.35 327,705 5,974 7.29 312,034 5,480 7.02

Loans and leases (2) (3)

36,114,741 505,434 5.56 35,501,370 489,113 5.52 34,814,280 507,107 5.79

Total Interest Earning Assets (2)

45,988,957 599,129 5.18 45,410,729 581,137 5.13 44,479,767 599,121 5.36

Cash and due from banks 385,202 377,777 415,030

Allowance for credit losses (459,294) (452,987) (440,868)

Premises and equipment 575,001 567,661 560,685

Other assets 4,488,218 4,490,908 4,504,231

Total Assets $ 50,978,084 $ 50,394,088 $ 49,518,845

Liabilities

Deposits:

Interest-bearing demand $ 6,674,309 19,270 1.15 $ 6,617,287 18,393 1.11 $ 6,033,758 15,893 1.05

Money market 11,824,440 86,798 2.91 11,691,192 84,878 2.91 11,380,618 95,708 3.34

Savings 3,106,539 6,924 0.88 3,096,095 6,421 0.83 3,075,982 7,557 0.97

Certificates and other time 7,160,868 59,129 3.28 7,312,462 59,422 3.26 7,495,691 68,409 3.62

Total interest-bearing deposits 28,766,156 172,121 2.37 28,717,036 169,114 2.36 27,986,049 187,567 2.66

Short-term borrowings 2,644,489 24,999 3.75 2,106,129 19,522 3.71 1,682,747 17,764 4.16

Long-term borrowings 1,851,978 22,338 4.79 2,001,579 23,654 4.74 2,511,652 31,369 4.96

Total Interest-Bearing Liabilities 33,262,623 219,458 2.62 32,824,744 212,290 2.59 32,180,448 236,700 2.92

Non-interest-bearing demand deposits 10,039,263 9,942,298 9,905,230

Total Deposits and Borrowings 43,301,886 2.01 42,767,042 1.99 42,085,678 2.23

Other liabilities 814,313 806,700 856,542

Total Liabilities 44,116,199 43,573,742 42,942,220

Shareholders' Equity 6,861,885 6,820,346 6,576,625

Total Liabilities and Shareholders' Equity $ 50,978,084 $ 50,394,088 $ 49,518,845

Net Interest Earning Assets $ 12,726,334 $ 12,585,985 $ 12,299,319

Net Interest Income (FTE) (2)

379,671 368,847 362,421

Tax Equivalent Adjustment (3,149) (3,124) (3,149)

Net Interest Income $ 376,522 $ 365,723 $ 359,272

Net Interest Spread 2.56 % 2.54 % 2.44 %

Net Interest Margin (2)

3.29 % 3.25 % 3.25 %

(1) The average balances and yields earned on securities are based on historical cost.

(2) The interest income amounts are reflected on an FTE basis (non-GAAP), which adjusts for the tax benefit of income on certain tax-exempt loans and investments using the federal statutory tax rate of 21%. The yield on earning assets and the net interest margin are presented on an FTE basis (non-GAAP).

(3) Average loans and leases consist of average total loans, including non-accrual loans, less average unearned income.

F.N.B. CORPORATION AND SUBSIDIARIES

(Dollars in thousands)

(Unaudited)

Nine Months Ended September 30,

2026 2025

Interest Interest

Average Income/ Yield/ Average Income/ Yield/

Balance Expense Rate Balance Expense Rate

Assets

Interest-bearing deposits with banks $ 1,634,508 $ 42,671 3.49 % $ 1,734,300 $ 53,147 4.10 %

Taxable investment securities (1)

6,995,234 191,298 3.65 6,546,054 171,096 3.48

Tax-exempt investment securities (1) (2)

967,382 25,600 3.53 1,006,126 26,243 3.48

Loans held for sale 348,135 18,718 7.17 247,438 13,519 7.29

Loans and leases (2) (3)

35,509,872 1,474,405 5.55 34,458,648 1,483,204 5.75

Total Interest Earning Assets (2)

45,455,131 1,752,692 5.15 43,992,566 1,747,209 5.31

Cash and due from banks 378,783 401,509

Allowance for credit losses (453,116) (435,677)

Premises and equipment 570,226 551,738

Other assets 4,494,763 4,529,221

Total Assets $ 50,445,787 $ 49,039,357

Liabilities

Deposits:

Interest-bearing demand $ 6,611,504 55,837 1.13 $ 6,135,852 51,093 1.11

Money market 11,739,220 256,706 2.92 11,001,664 278,008 3.38

Savings 3,101,693 20,132 0.87 3,083,456 22,497 0.98

Certificates and other time 7,222,049 177,241 3.28 7,321,336 202,987 3.71

Total interest-bearing deposits 28,674,466 509,916 2.38 27,542,308 554,585 2.69

Short-term borrowings 2,245,532 62,455 3.71 1,645,644 51,999 4.21

Long-term borrowings 1,945,677 69,380 4.77 2,692,580 101,153 5.02

Total Interest-Bearing Liabilities 32,865,675 641,751 2.61 31,880,532 707,737 2.97

Non-interest-bearing demand deposits 9,937,391 9,789,501

Total Deposits and Borrowings 42,803,066 2.00 41,670,033 2.27

Other liabilities 812,575 892,612

Total Liabilities 43,615,641 42,562,645

Shareholders' Equity 6,830,146 6,476,712

Total Liabilities and Shareholders' Equity $ 50,445,787 $ 49,039,357

Net Interest Earning Assets $ 12,589,456 $ 12,112,034

Net Interest Income (FTE) (2)

1,110,941 1,039,472

Tax Equivalent Adjustment (9,418) (9,159)

Net Interest Income $ 1,101,523 $ 1,030,313

Net Interest Spread 2.54 % 2.34 %

Net Interest Margin (2)

3.26 % 3.16 %

(1) The average balances and yields earned on securities are based on historical cost.

(3) Average loans and leases consist of average total loans, including non-accrual loans, less average unearned income.

F.N.B. CORPORATION AND SUBSIDIARIES

(Unaudited)

For the Nine Months Ended

September 30,

3Q26 2Q26 3Q25 2026 2025

Performance Ratios

Return on average equity 8.84 % 8.75 % 9.02 % 8.59 % 8.19 %

Return on average tangible

common equity (1)

14.15 14.07 14.94 13.81 13.74

Return on average assets 1.19 1.18 1.20 1.16 1.08

Return on average tangible assets (1)

1.27 1.27 1.29 1.24 1.17

Net interest margin (FTE) (2)

3.29 3.25 3.25 3.26 3.16

Yield on earning assets (FTE) (2)

5.18 5.13 5.36 5.15 5.31

Cost of interest-bearing deposits 2.37 2.36 2.66 2.38 2.69

Cost of interest-bearing liabilities 2.62 2.59 2.92 2.61 2.97

Cost of funds 2.01 1.99 2.23 2.00 2.27

Efficiency ratio (1)

53.71 53.68 52.38 54.47 55.13

Effective tax rate 20.61 20.92 21.28 20.90 21.23

Capital Ratios

Equity / assets 13.09 13.41 13.30

Common equity tier 1 (3)

11.3 11.4 11.1

Leverage 9.26 9.24 8.92

Tangible common equity / tangible assets (1)

8.69 8.93 8.69

Common Stock Data

Average diluted common shares outstanding 354,965,353 357,413,941 361,669,618 357,521,422 362,329,469

Period end common shares outstanding 350,838,483 353,560,084 358,381,940

Book value per common share $ 19.42 $ 19.34 $ 18.52

Tangible book value per common share (1)

12.28 12.24 11.48

Dividend payout ratio (common) 30.14 % 31.23 % 29.05 % 31.00 % 33.02 %

(1) See non-GAAP financial measures section of this Press Release for additional information relating to the calculation of this item.

(2) The net interest margin and yield on earning assets (all non-GAAP measures) are presented on a fully taxable equivalent (FTE) basis, which adjusts for the tax benefit of income on certain tax-exempt loans and investments using the federal statutory tax rate of 21%.

(3)

September 30, 2026 Common Equity Tier 1 Capital ratio is an estimate.

F.N.B. CORPORATION AND SUBSIDIARIES

(Dollars in millions)

(Unaudited)

% Variance

3Q26 3Q26

3Q26 2Q26 3Q25 2Q26 3Q25

Balances at period end

Loans and Leases:

Commercial real estate (1)

$ 11,945 $ 12,035 $ 12,568 (0.7) (5.0)

Commercial and industrial

8,601 8,194 7,590 5.0 13.3

Commercial leases 799 802 829 (0.4) (3.6)

Other 159 140 153 13.6 3.9

Commercial loans and leases 21,504 21,171 21,140 1.6 1.7

Direct installment 2,654 2,654 2,678 — (0.9)

Residential mortgages 9,738 9,471 8,888 2.8 9.6

Indirect installment 964 852 767 13.1 25.7

Consumer LOC 1,677 1,621 1,484 3.5 13.0

Consumer loans 15,033 14,598 13,817 3.0 8.8

Total loans and leases $ 36,537 $ 35,769 $ 34,957 2.1 4.5

Note: Loans held for sale were $237, $290 and $278 at 3Q26, 2Q26, and 3Q25, respectively.

(1) Commercial real estate is made up of 67% non-owner occupied and 33% owner-occupied at September 30, 2026.

% Variance

Average balances 3Q26 3Q26 For the Nine Months Ended

September 30, %

Loans and Leases: 3Q26 2Q26 3Q25 2Q26 3Q25 2026 2025 Var.

Commercial real estate $ 11,924 $ 12,099 $ 12,659 (1.4) (5.8) $ 12,067 $ 12,714 (5.1)

Commercial and industrial 8,429 8,192 7,573 2.9 11.3 8,168 7,581 7.7

Commercial leases 788 797 789 (1.1) (0.2) 791 777 1.7

Other 149 140 153 6.8 (2.4) 145 153 (5.8)

Commercial loans and leases 21,290 21,227 21,174 0.3 0.5 21,170 21,225 (0.3)

Direct installment 2,655 2,649 2,671 0.2 (0.6) 2,657 2,667 (0.4)

Residential mortgages 9,614 9,210 8,736 4.4 10.0 9,251 8,381 10.4

Indirect installment 912 823 777 10.8 17.4 842 772 9.0

Consumer LOC 1,644 1,592 1,456 3.3 12.9 1,591 1,413 12.6

Consumer loans 14,825 14,274 13,640 3.9 8.7 14,340 13,234 8.4

Total loans and leases $ 36,115 $ 35,501 $ 34,814 1.7 3.7 $ 35,510 $ 34,459 3.1

F.N.B. CORPORATION AND SUBSIDIARIES

(Dollars in millions)

(Unaudited)

% Variance

3Q26 3Q26

Asset Quality Data 3Q26 2Q26 3Q25 2Q26 3Q25

Non-Performing Assets

Non-performing loans $ 119 $ 110 $ 125 8.2 (4.8)

Other real estate owned (OREO) 2 2 3 — (33.3)

Non-performing assets $ 121 $ 112 $ 128 8.0 (5.5)

Non-performing loans / total loans and leases 0.33 % 0.31 % 0.36 %

Non-performing assets plus 90+ days past due / total loans and leases plus OREO

0.47 0.46 0.40

Non-performing loans plus OREO / total loans and leases plus OREO 0.33 0.31 0.37

Delinquency

Loans 30-89 days past due $ 105 $ 92 $ 89 14.1 18.0

Loans 90+ days past due 52 51 13 2.0 300.0

Non-accrual loans 119 110 125 8.2 (4.8)

Past due and non-accrual loans $ 276 $ 253 $ 227 9.1 21.6

Past due and non-accrual loans / total loans and leases 0.75 % 0.71 % 0.65 %

F.N.B. CORPORATION AND SUBSIDIARIES

(Dollars in millions)

% Variance

(Unaudited) 3Q26 3Q26 For the Nine Months Ended

September 30, %

Allowance on Loans and Leases and Allowance for Unfunded Loan Commitments Rollforward 3Q26 2Q26 3Q25 2Q26 3Q25 2026 2025 Var.

Allowance for Credit Losses on Loans and Leases

Balance at beginning of period $ 447.3 $ 443.0 $ 432.1 1.0 3.5 $ 439.5 $ 422.8 4.0

Provision for credit losses 19.2 21.3 24.9 (10.0) (23.0) 59.8 68.5 (12.6)

Net loan (charge-offs) / recoveries (11.0) (17.0) (19.7) (35.2) (44.0) (43.9) (54.0) (18.8)

Allowance for credit losses on loans and leases $ 455.5 $ 447.3 $ 437.3 1.8 4.2 $ 455.5 $ 437.3 4.2

Allowance for Unfunded Loan Commitments

Allowance for unfunded loan commitments balance at beginning of period $ 19.1 $ 19.2 $ 21.0 (0.4) (8.9) $ 20.1 $ 21.4 (5.9)

Provision (reduction in allowance) for unfunded loan commitments / other adjustments 0.4 (0.1) (0.9) 546.3 142.6 (0.6) (1.3) 49.7

Allowance for unfunded loan commitments $ 19.5 $ 19.1 $ 20.1 1.9 (3.1) $ 19.5 $ 20.1 (3.1)

Total allowance for credit losses on loans and leases and allowance for unfunded loan commitments $ 475.0 $ 466.4 $ 457.4 1.8 3.8 $ 475.0 $ 457.4 3.8

Allowance for credit losses on loans and leases / total loans and leases 1.25 % 1.25 % 1.25 %

Allowance for credit losses on loans and leases / total non-performing loans 382.1 404.3 349.9

Net loan charge-offs (annualized) / total average loans and leases 0.12 0.19 0.22 0.17 % 0.21 %

F.N.B. CORPORATION AND SUBSIDIARIES

(Unaudited)

RECONCILIATIONS OF NON-GAAP FINANCIAL MEASURES AND KEY PERFORMANCE INDICATORS TO GAAP

We believe the following non-GAAP financial measures provide information useful to investors in understanding our operating performance and trends, and facilitate comparisons with the performance of our peers. The non-GAAP financial measures we use may differ from the non-GAAP financial measures other financial institutions use to measure their results of operations. Non-GAAP financial measures should be viewed in addition to, and not as an alternative for, our reported results prepared in accordance with U.S. GAAP. The following tables summarize the non-GAAP financial measures included in this press release and derived from amounts reported in our financial statements.

% Variance

3Q26 3Q26 For the Nine Months Ended

September 30, %

3Q26 2Q26 3Q25 2Q26 3Q25 2026 2025 Var.

Operating net income available to common shareholders

(dollars in thousands)

Net income available to common shareholders $ 152,862 $ 148,721 $ 149,509 $ 438,629 $ 396,694

FDIC special assessment — — (2,272) — (2,272)

Tax expense (benefit) of FDIC special assessment — — 477 — 477

Operating net income available to common shareholders (non-GAAP) $ 152,862 $ 148,721 $ 147,714 2.8 3.5 $ 438,629 $ 394,899 11.1

Operating earnings per diluted common share

Earnings per diluted common share $ 0.43 $ 0.42 $ 0.41 $ 1.23 $ 1.09

FDIC special assessment — — (0.01) — (0.01)

Tax expense (benefit) of FDIC special assessment — — — — —

Operating earnings per diluted common share (non-GAAP) $ 0.43 $ 0.42 $ 0.41 2.4 4.9 $ 1.23 $ 1.09 12.8

F.N.B. CORPORATION AND SUBSIDIARIES

(Unaudited)

For the Nine Months Ended

September 30,

3Q26 2Q26 3Q25 2026 2025

Return on average tangible common equity

(dollars in thousands)

Net income available to common shareholders (annualized) $ 606,465 $ 596,518 $ 593,162 $ 586,445 $ 530,379

Amortization of intangibles, net of tax (annualized) 9,552 9,761 12,507 10,012 12,578

Tangible net income available to common shareholders (annualized) (non-GAAP) $ 616,017 $ 606,279 $ 605,669 $ 596,457 $ 542,957

Average total shareholders' equity $ 6,861,885 $ 6,820,346 $ 6,576,625 $ 6,830,146 $ 6,476,712

Less: Average intangible assets (1)

(2,508,078) (2,511,122) (2,522,022) (2,511,147) (2,524,978)

Average tangible common equity (non-GAAP) $ 4,353,807 $ 4,309,224 $ 4,054,603 $ 4,318,999 $ 3,951,734

Return on average tangible common equity (non-GAAP) 14.15 % 14.07 % 14.94 % 13.81 % 13.74 %

Return on average tangible assets

(dollars in thousands)

Net income (annualized) $ 606,465 $ 596,518 $ 593,162 $ 586,445 $ 530,379

Amortization of intangibles, net of tax (annualized) 9,552 9,761 12,507 10,012 12,578

Tangible net income (annualized) (non-GAAP) $ 616,017 $ 606,279 $ 605,669 $ 596,457 $ 542,957

Average total assets $ 50,978,084 $ 50,394,088 $ 49,518,845 $ 50,445,787 $ 49,039,357

Less: Average intangible assets (1)

(2,508,078) (2,511,122) (2,522,022) (2,511,147) (2,524,978)

Average tangible assets (non-GAAP) $ 48,470,006 $ 47,882,966 $ 46,996,823 $ 47,934,640 $ 46,514,379

Return on average tangible assets (non-GAAP) 1.27 % 1.27 % 1.29 % 1.24 % 1.17 %

(1) Excludes loan servicing rights.

F.N.B. CORPORATION AND SUBSIDIARIES

(Unaudited)

3Q26 2Q26 3Q25

Tangible book value per common share

(dollars in thousands, except per share data)

Total shareholders' equity $ 6,813,263 $ 6,838,456 $ 6,635,620

Less: Intangible assets (1)

(2,506,602) (2,509,651) (2,520,013)

Tangible common equity (non-GAAP) $ 4,306,661 $ 4,328,805 $ 4,115,607

Common shares outstanding 350,838,483 353,560,084 358,381,940

Tangible book value per common share (non-GAAP) $ 12.28 $ 12.24 $ 11.48

Tangible common equity to tangible assets

(dollars in thousands)

Total shareholders' equity $ 6,813,263 $ 6,838,456 $ 6,635,620

Less: Intangible assets (1)

(2,506,602) (2,509,651) (2,520,013)

Tangible common equity (non-GAAP) $ 4,306,661 $ 4,328,805 $ 4,115,607

Total assets $ 52,053,325 $ 50,998,603 $ 49,888,522

Less: Intangible assets (1)

(2,506,602) (2,509,651) (2,520,013)

Tangible assets (non-GAAP) $ 49,546,723 $ 48,488,952 $ 47,368,509

Tangible common equity to tangible assets (non-GAAP) 8.69 % 8.93 % 8.69 %

(1) Excludes loan servicing rights.

F.N.B. CORPORATION AND SUBSIDIARIES

(Unaudited)

For the Nine Months Ended

September 30,

3Q26 2Q26 3Q25 2026 2025

Pre-provision net revenue

(in thousands)

Net interest income $ 376,522 $ 365,723 $ 359,272 $ 1,101,523 $ 1,030,313

Non-interest income 92,599 96,951 98,170 280,535 276,951

Less: Non-interest expense (256,943) (253,249) (243,535) (768,057) (736,571)

Pre-provision net revenue (reported) (non-GAAP) $ 212,178 $ 209,425 $ 213,907 $ 614,001 $ 570,693

Pre-provision net revenue (reported) (annualized) (non-GAAP) $ 841,792 $ 840,000 $ 848,651 $ 820,918 $ 763,015

Adjustments:

Add (Less): FDIC special assessment (non-interest expense) — — (2,272) — (2,272)

Operating pre-provision net revenue (non-GAAP) $ 212,178 $ 209,425 $ 211,635 $ 614,001 $ 568,421

Operating pre-provision net revenue (annualized) (non-GAAP) $ 841,792 $ 840,000 $ 839,637 $ 820,918 $ 759,977

Efficiency ratio (FTE)

(dollars in thousands)

Total non-interest expense $ 256,943 $ 253,249 $ 243,535 $ 768,057 $ 736,571

Less: Amortization of intangibles (3,048) (3,081) (3,991) (9,479) (11,909)

Less: OREO expense (251) (147) (578) (634) (1,209)

Add (Less): FDIC special assessment — — 2,272 — 2,272

Adjusted non-interest expense $ 253,644 $ 250,021 $ 241,238 $ 757,944 $ 725,725

Net interest income $ 376,522 $ 365,723 $ 359,272 $ 1,101,523 $ 1,030,313

Taxable equivalent adjustment 3,149 3,124 3,149 9,418 9,159

Non-interest income 92,599 96,951 98,170 280,535 276,951

Less: Net securities losses (gains) (58) (27) — (87) (58)

Adjusted net interest income (FTE) + non-interest income $ 472,212 $ 465,771 $ 460,591 $ 1,391,389 $ 1,316,365

Efficiency ratio (FTE) (non-GAAP) 53.71 % 53.68 % 52.38 % 54.47 % 55.13 %

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Cover

Oct. 19, 2026

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Document Period End Date

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FNB CORP/PA/

Entity Incorporation, State or Country Code

Entity File Number

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Entity Tax Identification Number

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Entity Address, Address Line One

626 Washington Place,

Entity Address, City or Town

Pittsburgh,

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