M&T BANK CORP

Interest income earned on certain of the Company's assets is exempt from federal income tax. Taxable-equivalent net interest income is a non-GAAP measure that adjusts income earned on a tax-exempt asset to present it on an equivalent basis to interest income earned on a fully taxable asset.

The Company's average balance sheets accompanied by the annualized taxable-equivalent interest income and expense and the average rate on the Company's earning assets and interest-bearing liabilities are presented as follows.

AVERAGE BALANCE SHEETS AND ANNUALIZED TAXABLE-EQUIVALENT RATES

(a)Includes nonaccrual loans.

(b)Includes available-for-sale securities at amortized cost.

(c)Primarily government issued or guaranteed.

(d)The yield on state and political subdivision investment securities for the three-month period ended June 30, 2025 reflects $20 million of lower taxable-equivalent interest income resulting from an alignment of amortization periods for certain municipal bonds obtained from the acquisition of People's United.

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AVERAGE BALANCE SHEETS AND ANNUALIZED TAXABLE-EQUIVALENT RATES (CONTINUED)

(a)Includes nonaccrual loans.

(b)Includes available-for-sale securities at amortized cost.

(c)Primarily government issued or guaranteed.

(d)The yield on state and political subdivision investment securities for the nine-month period ended September 30, 2025 reflects $18 million of lower taxable-equivalent interest income resulting from an alignment of amortization periods for certain municipal bonds obtained from the acquisition of People's United.

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Taxable-equivalent net interest income can be impacted by changes in the composition of the Company's earning assets and interest-bearing liabilities, as discussed herein, as well as changes in interest rates and spreads. The FOMC lowered its federal funds target interest rate by a total of 100 basis points in the last four months of 2024 and by 25 basis points in September 2025.

Taxable-equivalent net interest income increased $51 million in the recent quarter as compared with the second quarter of 2025 reflecting an additional day of earnings, favorable earning assets and interest-bearing liabilities repricing and the impact of $20 million of lower taxable-equivalent interest income in the second quarter of 2025 resulting from an alignment of amortization periods for certain municipal bonds obtained from the acquisition of People’s United. The net interest margin increased 6 basis points over that same time period. The FOMC reduction in its federal funds target interest rate in September 2025 had little impact on the Company's taxable-equivalent net interest income for the three months ended September 30, 2025.

Taxable-equivalent net interest income for the first nine months of 2025 increased $40 million as compared with the same 2024 period. That increase reflects an 8 basis-point widening of the net interest margin driven by a decrease of 53 basis points in the cost of interest-bearing liabilities, partially offset by a 25 basis-point decline in the yield received on earning assets and a 20 basis-point reduction in the contribution of net interest-free funds. Contributing to lower yields on earning assets and rates paid on interest-bearing liabilities in the first nine months of 2025 as compared with the similar 2024 period was the impact of the FOMC's cumulative 100 basis-point reduction in its federal funds target interest rate during the last four months of 2024. Partially offsetting the decline in yields received on earning assets was an increase in the yields received on investment securities from the deployment of liquidity into fixed rate investment securities from early 2024 through September 2025 that yielded higher rates than maturing investment securities.

Future changes in market interest rates or spreads, as well as changes in the composition of the Company’s portfolios of earning assets and interest-bearing liabilities that result in changes to spreads, could impact the Company’s net interest income and net interest margin. Future changes in the levels of net interest-free funds and the interest rates used to value such funds could also impact the Company's net interest margin.

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Interest rate swap agreements

Management assesses the potential impact of future changes in interest rates and spreads by projecting net interest income under several interest rate scenarios. In managing interest rate risk, the Company has utilized interest rate swap agreements to modify the repricing characteristics of certain portions of its earning assets and interest-bearing liabilities. Under the terms of those interest rate swap agreements, the Company generally received payments based on the outstanding notional amount at fixed rates and made payments at variable rates. Periodic settlement amounts arising from these agreements are reflected in either the yields received on earning assets or the rates paid on interest-bearing liabilities. The Company enters into forward-starting interest rate swap agreements predominantly to hedge interest rate exposures expected in future periods. The following table summarizes information about interest rate swap agreements entered into for interest rate risk management purposes at September 30, 2025 and December 31, 2024.

INTEREST RATE SWAP AGREEMENTS - DESIGNATED AS HEDGES

Information regarding the fair value of interest rate swap agreements designated as fair value hedges and cash flow hedges is presented in note 11 of Notes to Financial Statements. The average notional amounts of interest rate swap agreements entered into for interest rate risk management purposes (excluding forward-starting interest rate swap agreements not in effect during the quarter), the related effect on net interest income and margin, and the weighted-average interest rates paid or received on those swap agreements are presented in the table that follows.

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INTEREST RATE SWAP AGREEMENTS - EFFECT ON NET INTEREST INCOME

(a)Computed as an annualized percentage of average earning assets or interest-bearing liabilities.

(b)Excludes forward-starting interest rate swap agreements not in effect during the period.

(c)Weighted-average rate paid or received on interest rate swap agreements in effect during the period.

Lending activities

The Company's lending activities reflect a shift in portfolio composition as the Company executed various strategies to lessen its relative concentration of commercial real estate loans throughout 2024 and to reduce the amount of criticized loans in this category through 2025. The following table summarizes changes in the components of average loans.

AVERAGE LOANS

Average loans totaled $136.5 billion in the third quarter of 2025, up $1.1 billion from the second quarter of 2025.

•Average commercial and industrial loans grew $680 million reflecting growth in loans to the financial and insurance industry. Loans to that industry include credit facilities to investment funds, mortgage lenders, real estate investment trusts and corporate and institutional borrowers.

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•Commercial real estate loans decreased $980 million, reflecting a reduction of $1.1 billion of average construction commercial real estate loans, partially offset by a modest increase of average permanent commercial real estate loans. Contributing to the decline in average commercial real estate construction loans were payoffs and the full quarter impact of the sale of $661 million of out-of-footprint residential builder and developer loans in June 2025.

•Average residential real estate loans increased $675 million reflecting the retention of originated residential mortgage loans and purchases.

•Average consumer loans increased $745 million reflecting higher average balances of recreational finance loans of $663 million and home equity loans and lines of credit of $76 million.

In the first nine months of 2025, average loans increased $1.2 billion from the corresponding 2024 period.

•Average commercial and industrial loans increased $3.0 billion reflecting higher average balances of loans to financial and insurance companies and motor vehicle and recreational finance dealers.

•Average commercial real estate loans declined $5.8 billion as the Company executed various strategies to reduce its relative concentration of such loans. Average permanent and construction commercial real estate loans decreased by $3.8 billion and $1.9 billion, respectively.

•Average residential real estate loans grew $699 million reflecting the retention of originated residential mortgage loans and purchases.

•Average consumer loans increased $3.3 billion reflecting recreational finance and automobile average loan growth of $2.4 billion and $712 million, respectively.

Investing activities

The Company's investment securities portfolio is largely comprised of government-issued or guaranteed residential and commercial mortgage-backed securities and U.S. Treasury securities, but also includes municipal and other securities. When purchasing investment securities, the Company considers its liquidity position and its overall interest rate risk profile as well as the adequacy of expected returns relative to risks assumed, including prepayments. The Company may occasionally sell investment securities as a result of movements in interest rates and spreads, changes in liquidity needs, actual or anticipated prepayments, credit risk associated with a particular security, or as a result of restructuring its investment securities portfolio. The amounts of investment securities held by the Company are influenced by such factors as available yield in comparison with alternative investments, demand for loans, which generally yield more than investment securities, ongoing repayments, the levels of deposits, and management of liquidity and balance sheet size and resulting capital ratios. Information about the Company's average investment securities portfolio is presented in the following table.

AVERAGE INVESTMENT SECURITIES

(a)Primarily government issued or guaranteed.

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The investment securities portfolio averaged $36.6 billion in the third quarter of 2025, up $1.2 billion from the second quarter of 2025, and $35.5 billion for the nine months ended September 30, 2025, an increase of $5.7 billion from the similar 2024 period. Those increases reflect the deployment of liquidity into primarily fixed rate mortgage-backed investment securities classified in the Company's available-for-sale investment securities portfolio. As a result of the purchases of higher-yielding securities and the maturities of lower-yielding securities, the weighted-average current yield for total investment securities available for sale increased to 4.65% at September 30, 2025 and 4.50% at June 30, 2025 as compared with 4.08% at September 30, 2024. The weighted-average duration of the available-for-sale investment securities portfolio was 2.5 years at September 30, 2025 as compared with 2.6 years and 2.3 years at June 30, 2025 and September 30, 2024, respectively. The Company routinely adjusts its holdings of capital stock of the FHLB of New York and the FRB of New York based on amounts of outstanding borrowings and available lines of credit with those entities.

The Company regularly reviews its debt investment securities for declines in value below amortized cost that might be indicative of credit-related losses. There were no credit-related losses on debt investment securities recognized in each of the nine months ended September 30, 2025 and 2024. A further discussion of fair values of investment securities is included herein under the heading "Capital." Additional information about the investment securities portfolio is included in notes 3 and 13 of Notes to Financial Statements.

Other earning assets include interest-bearing deposits at banks and trading account assets. Those other earning assets in the aggregate averaged $17.8 billion and $19.8 billion for the three-month periods ended September 30, 2025 and June 30, 2025, respectively, and $19.1 billion and $28.6 billion for the nine months ended September 30, 2025 and 2024, respectively. The amounts of other earning assets at those respective dates were primarily comprised of deposits held at the FRB of New York. In general, the levels of those deposits often fluctuate due to changes in deposits of retail and commercial customers, trust-related deposits, brokered deposits and additions to or maturities of investment securities or borrowings.

Funding activities - deposits

The most significant source of funding for the Company is core deposits. The Company considers noninterest-bearing deposits, savings and interest-checking deposits and time deposits of $250,000 or less as core deposits. The Company’s branch network is its principal source of core deposits, which generally carry lower interest rates than wholesale funds of comparable maturities. Average core deposits represented 78% and 79% of average earning assets for the quarters ended September 30, 2025 and June 30, 2025, respectively, and 78% and 77% for the nine months ended September 30, 2025 and 2024, respectively. The Company also includes brokered deposits as a component of its wholesale funding strategy. Depending on market conditions, including demand by customers and other investors, and the cost of funds available from alternative sources, the Company may change the amount or composition of brokered deposits in the future. The following table provides an analysis of changes in the components of average deposits.

AVERAGE DEPOSITS

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Total deposits averaged $162.7 billion in the recent quarter, down $700 million from the second quarter of 2025.

•Average core deposits decreased $853 million reflecting lower noninterest-bearing deposits largely driven by a single commercial customer, partially offset by higher average savings and interest-checking deposits.

•Average brokered deposits increased $205 million reflecting an increase in brokered savings and interest-checking deposits, partially offset by maturities of brokered time deposits.

In the first nine months of 2025, total average deposits decreased $565 million from the corresponding 2024 period.

•Average core deposits grew $1.2 billion due to higher average balances of savings and interest-checking deposits that reflected a shift in customer funds from noninterest-bearing accounts to interest-bearing products. Lower average balances of core time deposits reflected comparatively lower rates paid on those products.

•Average brokered deposits declined $1.4 billion reflecting a decrease in average brokered time deposits of $3.1 billion as those products matured. That decrease was partially offset by an increase in average brokered savings and interest-bearing transaction accounts of $1.7 billion reflecting changes in the Company's wholesale funding strategy.

The accompanying table summarizes the components of average total deposits by reportable segment for the three months ended September 30, 2025 and June 30, 2025 and the nine months ended September 30, 2025 and 2024.

AVERAGE DEPOSITS BY REPORTABLE SEGMENT

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Funding activities - borrowings

The following table summarizes the average balances utilized from the Company's short-term and long-term borrowing facilities and note programs.

AVERAGE BORROWINGS

The Company uses borrowing capacity from banks, the FHLBs, the FRB of New York and others as sources of funding. Short-term borrowings represent arrangements that at the time they were entered into had a contractual maturity of one year or less. Average short-term borrowings in the third quarter of 2025 as compared with the second quarter of 2025, as well as for the nine months ended September 30, 2025 as compared with the similar 2024 period, were lower as a result of the Company's management of liquidity, including reductions in certain short-term wholesale funding sources.

The levels of long-term borrowings reflect the Company's strategies to diversify its wholesale funding sources to provide long-term funding stabilization and prepare for proposed regulations enumerating certain long-term debt requirements as described in Part I, Item 1, "Resolution Planning and Resolution-Related Requirements" of M&T's 2024 Annual Report. The following table provides a summary of the Company's issuances, maturities and redemptions of long-term borrowings for the three-month and nine-month periods ended September 30, 2025.

LONG-TERM BORROWING ISSUANCES, MATURITIES AND REDEMPTIONS

(a)At par value.

(b)Excludes paydowns of asset-backed notes.

Additional information regarding borrowings is provided in notes 5 and 12 of Notes to Financial Statements.

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