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CBSH
                   1000 Walnut Street / Suite 700 / Kansas City, Missouri 64106 / 816.234.2000
FOR IMMEDIATE RELEASE:
Tuesday, October 20, 2026

COMMERCE BANCSHARES, INC. REPORTS
THIRD QUARTER EARNINGS PER SHARE OF $1.08

Commerce Bancshares, Inc. announced earnings of $1.08 per share for the three months ended September 30, 2026, compared to $1.01 per share in the same quarter last year and $1.10 per share in the second quarter of 2026. Net income for the third quarter of 2026 amounted to $155.0 million, compared to $141.5 million in the third quarter of 2025 and $159.8 million in the prior quarter.

For the nine months ended September 30, 2026, earnings per share totaled $3.14 compared to $3.03 for the first nine months of 2025. Net income amounted to $456.4 million for the nine months ended September 30, 2026, compared to $425.6 million in the comparable period last year. For the year to date, the return on average assets was 1.75%, and the return on average equity was 14.03%.

In making this announcement, John Kemper, Chief Executive Officer, said, “Commerce delivered another solid quarter, with strong profitability, broad-based loan growth, continued momentum across our fee businesses and excellent credit quality. Ending loan balances grew at an annualized rate of more than 7% during the quarter, led by continued strength in our commercial and wealth segments. These results reflect the durability of our diversified business model and our team’s continued focus on serving our customers.

“Our underlying net interest margin expanded after excluding the TIPS inflation income recognized in the prior quarter. Fee income also increased, led by continued strength in our trust, bank card, and deposit fees. This balanced revenue mix remains an important source of strength for Commerce and supports consistent performance over time.

“Deposit balances performed in line with our expectations during the quarter. Our longstanding customer relationships, diverse deposit base and strong liquidity position continue to provide a solid foundation for growth. We also remained focused on disciplined capital management, repurchasing approximately 1.9 million shares while maintaining strong capital levels and supporting balance sheet growth. This balanced approach allows us to support customer growth, return capital to shareholders and maintain the strong balance sheet that has been a source of strength through economic cycles.”

Third Quarter 2026 Financial Highlights:

•Net interest income was $308.9 million, a $6.2 million decrease from the prior quarter. The net yield on interest earning assets decreased six basis points to 3.71%.

•Non-interest income totaled $185.5 million, an increase of $1.6 million, or .9%, over the prior quarter and was 37.5% of total revenue.

1

•Compared with the same period last year, trust fees grew $15.0 million, or 25.7%, while bank card fees increased $3.6 million, or 8.0%.

•Non-interest expense totaled $285.9 million, a decrease of $11.1 million, or 3.7%, from the prior quarter.

•Average loan balances totaled $20.7 billion, an increase of $172.3 million, or .8%, over the prior quarter.

•Total average available for sale debt securities decreased $473.7 million from the prior quarter to $8.2 billion, at fair value.

•Total average deposits decreased $361.6 million, or 1.3%, from the prior quarter to $27.2 billion.

•The ratio of annualized net loan charge-offs to average loans was .20% in the current quarter compared to .19% in the prior quarter.

•The allowance for credit losses on loans increased $2.5 million during the third quarter of 2026 to $197.8 million, and the ratio of the allowance for credit losses on loans to total loans was .93% at September 30, 2026, compared to .94% at June 30, 2026.

•The Company purchased approximately 1.9 million shares of its common stock during the current quarter at an average price of $58.84.

•Total assets on September 30, 2026 were $34.8 billion, a decrease of $445.8 million from the prior quarter.

•For the quarter, the return on average assets was 1.79%, the return on average equity was 14.17%, and the efficiency ratio was 56.69%.

Commerce Bancshares, Inc. is a regional bank holding company offering a full line of banking services through its subsidiaries, including payment solutions, wealth management and securities brokerage. Commerce Bank, its primary subsidiary, brings over 160 years of experience helping individuals and businesses through high-touch service and sophisticated, personalized financial solutions. Commerce maintains an extensive network of banking centers, wealth offices, and ATMs throughout the Midwest, as well as commercial offices in 11 states and offers payment solutions nationwide. The company also delivers financial planning, private banking, investment management and trust services to clients throughout a network of dedicated wealth offices across the country. Customers can conveniently access their account 24/7 using mobile and online platforms, as well as a customer service line.

This financial news release and the supplementary Earnings Highlights presentation are available on the Company’s website at https://investor.commercebank.com/news-info/financial-news-releases/default.aspx.
* * * * * * * * * * * * * * *
For additional information, contact
Matt Burkemper, Investor Relations
(314) 746-7485
www.commercebank.com
matthew.burkemper@commercebank.com


2

COMMERCE BANCSHARES, INC. and SUBSIDIARIES
FINANCIAL HIGHLIGHTS

For the Three Months EndedFor the Nine Months Ended
(Unaudited)
(Dollars in thousands, except per share data)
Sep. 30, 2026Jun. 30, 2026Sep. 30, 2025Sep. 30, 2026Sep. 30, 2025
FINANCIAL SUMMARY
Net interest income$308,877 $315,085 $279,457 $923,802 $828,706 
Non-interest income185,466 183,828 161,511 545,145 486,073 
Total revenue494,343 498,913 440,968 1,468,947 1,314,779 
Investment securities gains (losses)4,097 12,830 7,885 28,574 731 
Provision for credit losses10,025 8,731 20,061 29,716 40,145 
Non-interest expense285,931 297,068 244,018 874,125 726,831 
Income before taxes202,484 205,944 184,774 593,680 548,534 
Income taxes44,408 45,775 41,152 131,064 120,516 
Non-controlling interest expense (income)3,086 379 2,104 6,213 2,429 
Net income attributable to Commerce Bancshares, Inc.$154,990 $159,790 $141,518 $456,403 $425,589 
Earnings per common share:
Net income — basic$1.08 $1.10 $1.01 $3.14 $3.03 
Net income — diluted$1.08 $1.10 $1.01 $3.14 $3.03 
Effective tax rate22.27%22.27%22.53%22.31%22.07%
Fully-taxable equivalent net interest income$311,255 $317,475 $281,770 $930,934 $835,614 
Average total interest earning assets (1)
$33,289,647 $33,779,032 $30,732,665 $33,730,139 $30,753,879 
Diluted wtd. average shares outstanding142,219,858 144,309,038 139,086,435 144,115,180 139,338,842 
RATIOS
Average loans to deposits (2)
76.06%74.44%70.61%74.65%70.08%
Return on total average assets1.79 1.84 1.78 1.75 1.81 
Return on average equity (3)
14.17 14.70 15.26 14.03 16.15 
Non-interest income to total revenue37.52 36.85 36.63 37.11 36.97 
Efficiency ratio (4)
56.69 58.40 55.26 58.34 55.21 
Net yield on interest earning assets3.71 3.77 3.64 3.69 3.63 
EQUITY SUMMARY
Cash dividends per share$.275 $.275 $.262 $.825 $.786 
Cash dividends on common stock$39,246 $39,861 $36,733 $119,462 $110,360 
Book value per share (5)
$29.68 $30.45 $27.15 
Market value per share (5)
$54.74 $57.75 $56.91 
High market value per share$60.92 $58.43 $63.18 
Low market value per share$54.68 $48.74 $55.16 
Common shares outstanding (5)
142,043,272 143,894,124 139,672,183 
Tangible common equity to tangible assets (6)
11.06%11.39%11.27%
Tier I leverage ratio13.04%12.81%12.95%
OTHER QTD INFORMATION
Assets under administration (shown in billions)$92.2 $94.5 $82.2 
Number of bank/ATM locations247 248 239 
Full-time equivalent employees4,969 4,976 4,666 
(1) Excludes allowance for credit losses on loans and unrealized gains/(losses) on available for sale debt securities.
(2) Includes loans held for sale.
(3) Annualized net income attributable to Commerce Bancshares, Inc. divided by average total equity.
(4) The efficiency ratio is calculated as non-interest expense (excluding intangibles amortization) as a percent of total revenue.
(5) As of period end.
(6) The tangible common equity ratio is a non-gaap ratio and is calculated as stockholders’ equity reduced by goodwill and other intangible assets (excluding mortgage servicing rights) divided by total assets reduced by goodwill and other intangible assets (excluding mortgage servicing rights).
All share and per share amounts have been restated to reflect the 5% stock dividend distributed in December 2025.
3

COMMERCE BANCSHARES, INC. and SUBSIDIARIES
CONSOLIDATED STATEMENTS OF INCOME

 (Unaudited)
(In thousands, except per share data)
For the Three Months EndedFor the Nine Months Ended
Sep. 30, 2026Jun. 30, 2026Mar. 31, 2026Dec. 31, 2025Sep. 30, 2025Sep. 30, 2026Sep. 30, 2025
Interest income$402,695 $407,331 $396,507 $373,617 $374,105 $1,206,533 $1,110,106 
Interest expense93,818 92,246 96,667 90,465 94,648 282,731 281,400 
Net interest income308,877 315,085 299,840 283,152 279,457 923,802 828,706 
Provision for credit losses10,025 8,731 10,960 15,993 20,061 29,716 40,145 
Net interest income after credit losses298,852 306,354 288,880 267,159 259,396 894,086 788,561 
NON-INTEREST INCOME
Trust fees73,418 71,512 71,049 62,125 58,412 215,979 170,575 
Bank card transaction fees49,182 48,121 45,585 46,761 45,551 142,888 137,506 
Deposit account charges and other fees29,651 29,259 28,578 27,949 27,427 87,488 80,297 
Consumer brokerage services6,345 5,862 5,444 5,185 6,698 17,651 16,866 
Capital market fees4,034 5,667 5,338 4,230 5,138 15,039 16,425 
Loan fees and sales3,566 3,274 3,243 3,594 3,465 10,083 10,288 
Other19,270 20,133 16,614 16,364 14,820 56,017 54,116 
Total non-interest income185,466 183,828 175,851 166,208 161,511 545,145 486,073 
INVESTMENT SECURITIES GAINS (LOSSES), NET4,097 12,830 11,647 2,929 7,885 28,574 731 
NON-INTEREST EXPENSE
Salaries and employee benefits181,566 179,954 180,787 162,889 157,461 542,307 465,564 
Data processing and software38,849 38,241 38,328 35,273 33,555 115,418 98,697 
Professional and other services14,645 16,506 18,792 14,573 11,284 49,943 34,283 
Net occupancy15,068 14,638 15,308 13,172 13,474 45,014 41,148 
Marketing6,824 6,413 6,957 6,201 6,670 20,194 18,487 
Equipment5,707 5,870 5,671 5,682 5,421 17,248 15,826 
Supplies and communication5,492 5,484 5,238 4,841 4,837 16,214 14,845 
Deposit Insurance3,789 3,841 3,914 (81)3,074 11,544 10,130 
Other13,991 26,121 16,131 10,445 8,242 56,243 27,851 
Total non-interest expense285,931 297,068 291,126 252,995 244,018 874,125 726,831 
Income before income taxes202,484 205,944 185,252 183,301 184,774 593,680 548,534 
Less income taxes44,408 45,775 40,881 40,620 41,152 131,064 120,516 
Net income158,076 160,169 144,371 142,681 143,622 462,616 428,018 
Less non-controlling interest expense (income)3,086 379 2,748 2,019 2,104 6,213 2,429 
Net income attributable to Commerce Bancshares, Inc.$154,990 $159,790 $141,623 $140,662 $141,518 $456,403 $425,589 
Net income per common share — basic$1.08 $1.10 $0.96 $1.01 $1.01 $3.14 $3.03 
Net income per common share — diluted$1.08 $1.10 $0.96 $1.01 $1.01 $3.14 $3.03 
OTHER INFORMATION
Return on total average assets1.79%1.84%1.62%1.73%1.78%1.75%1.81%
Return on average equity (1)
14.1714.7013.2214.7015.2614.0316.15
Efficiency ratio (2)
56.6958.4060.0056.2355.2658.3455.21
Effective tax rate22.2722.2722.4022.4122.5322.3122.07
Net yield on interest earning assets3.713.773.593.603.643.693.63
Fully-taxable equivalent net interest income$311,255 $317,475 $302,204 $285,830 $281,770 $930,934 $835,614 
(1) Annualized net income attributable to Commerce Bancshares, Inc. divided by average total equity.
(2) The efficiency ratio is calculated as non-interest expense (excluding intangibles amortization) as a percent of total revenue.
4

COMMERCE BANCSHARES, INC. and SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS - PERIOD END

(Unaudited)
(In thousands)
Sep. 30, 2026Jun. 30, 2026Sep. 30, 2025
ASSETS
Loans
     Business $7,262,310 $7,115,984 $6,414,792 
     Real estate — construction and land1,451,704 1,493,455 1,433,652 
     Real estate — business4,227,627 4,064,253 3,745,000 
     Real estate — personal4,335,991 4,369,077 3,070,980 
     Consumer2,712,153 2,527,448 2,171,599 
     Revolving home equity662,277 649,332 364,241 
     Consumer credit card556,558 561,277 575,317 
     Overdrafts3,321 52,655 11,186 
Total loans21,211,941 20,833,481 17,786,767 
Allowance for credit losses on loans(197,840)(195,375)(175,671)
Net loans21,014,101 20,638,106 17,611,096 
Loans held for sale2,165 3,799 2,538 
Investment securities:
Available for sale debt securities7,928,567 8,322,634 8,998,586 
Trading debt securities43,700 57,651 56,282 
Equity securities41,492 114,724 53,193 
Other securities239,001 242,737 227,430 
Total investment securities8,252,760 8,737,746 9,335,491 
Federal funds sold515 2,010 — 
Securities purchased under agreements to resell1,150,000 1,150,000 850,000 
Interest earning deposits with banks1,773,409 2,260,162 2,477,668 
Cash and due from banks624,151 645,674 476,441 
Premises and equipment — net554,527 527,679 483,000 
Goodwill253,805 253,805 146,539 
Other intangible assets — net135,087 140,482 13,329 
Other assets1,062,864 909,704 892,586 
Total assets$34,823,384 $35,269,167 $32,288,688 
LIABILITIES AND STOCKHOLDERS’ EQUITY
Deposits:
Non-interest bearing$8,217,972 $8,172,552 $7,489,645 
Savings, interest checking and money market16,741,629 17,320,654 15,551,799 
Certificates of deposit of less than $100,000991,028 1,017,503 1,002,640 
Certificates of deposit of $100,000 and over1,297,238 1,364,993 1,413,965 
Total deposits27,247,867 27,875,702 25,458,049 
Federal funds purchased and securities sold under agreements to repurchase2,696,103 2,428,291 2,473,065 
Other borrowings16,164 26,291 9,270 
Other liabilities647,826 557,078 555,257 
Total liabilities30,607,960 30,887,362 28,495,641 
Stockholders’ equity:
Common stock742,606 742,606 676,054 
Capital surplus3,999,745 3,993,098 3,390,526 
Retained earnings468,767 353,023 360,723 
Treasury stock(343,578)(232,318)(121,972)
Accumulated other comprehensive income (loss)(678,958)(498,731)(533,666)
Total stockholders’ equity4,188,582 4,357,678 3,771,665 
Non-controlling interest26,842 24,127 21,382 
Total equity4,215,424 4,381,805 3,793,047 
Total liabilities and equity$34,823,384 $35,269,167 $32,288,688 

5

COMMERCE BANCSHARES, INC. and SUBSIDIARIES
AVERAGE BALANCE SHEETS

(Unaudited)
(In thousands)
For the Three Months Ended
Sep. 30, 2026Jun. 30, 2026Mar. 31, 2026Dec. 31, 2025Sep. 30, 2025
ASSETS:
Loans:
Business$6,934,517 $6,864,328 $6,687,131 $6,317,805 $6,230,019 
Real estate — construction and land1,471,171 1,545,640 1,592,328 1,408,339 1,396,977 
Real estate — business4,077,981 4,062,672 4,045,670 3,730,679 3,715,597 
Real estate — personal4,343,967 4,386,681 4,417,131 3,058,834 3,059,913 
Consumer2,653,454 2,472,965 2,421,541 2,200,500 2,160,637 
Revolving home equity653,614 630,034 611,101 372,194 360,820 
Consumer credit card545,441 544,688 555,697 565,896 563,351 
Overdrafts6,449 7,291 7,144 6,592 7,037 
Total loans
20,686,594 20,514,299 20,337,743 17,660,839 17,494,351 
Allowance for credit losses on loans(194,777)(198,032)(201,769)(175,129)(164,623)
Net loans20,491,817 20,316,267 20,135,974 17,485,710 17,329,728 
Loans held for sale1,909 1,462 2,361 2,532 2,369 
Investment securities:
U.S. government and federal agency obligations3,495,551 3,365,011 3,190,796 3,197,720 2,693,327 
Government-sponsored enterprise obligations54,554 54,593 54,800 54,955 55,014 
State and municipal obligations673,412 695,988 709,332 724,737 756,137 
Mortgage-backed securities3,444,269 4,015,292 4,211,068 4,316,799 4,461,056 
Asset-backed securities1,015,185 1,056,932 1,201,187 1,336,859 1,466,770 
Other debt securities
165,446 171,284 176,676 196,633 204,281 
Unrealized gain (loss) on debt securities(656,125)(693,080)(630,778)(645,595)(766,025)
Total available for sale debt securities8,192,292 8,666,020 8,913,081 9,182,108 8,870,560 
Trading debt securities
50,797 53,144 97,801 61,160 56,032 
Equity securities66,468 92,386 50,378 52,387 50,823 
Other securities 241,759 247,335 250,641 227,395 220,041 
Total investment securities8,551,316 9,058,885 9,311,901 9,523,050 9,197,456 
Federal funds sold901 733 862 — 23 
Securities purchased under agreements to resell1,150,000 934,617 850,000 850,000 850,000 
Interest earning deposits with banks2,242,802 2,575,956 2,997,340 2,786,891 2,422,441 
Other assets1,950,335 1,986,886 2,074,538 1,700,147 1,709,247 
Total assets$34,389,080 $34,874,806 $35,372,976 $32,348,330 $31,511,264 
LIABILITIES AND EQUITY:
Non-interest bearing deposits$8,065,085 $8,034,747 $7,874,488 $7,592,431 $7,345,156 
Savings1,299,729 1,330,292 1,301,768 1,261,285 1,283,671 
Interest checking and money market15,486,834 15,770,092 16,019,323 14,335,613 13,740,770 
Certificates of deposit of less than $100,0001,006,309 1,026,185 1,035,130 1,015,617 991,877 
Certificates of deposit of $100,000 and over1,341,305 1,399,523 1,465,168 1,389,149 1,416,572 
Total deposits27,199,262 27,560,839 27,695,877 25,594,095 24,778,046 
Borrowings:
Federal funds purchased176,809 250,160 141,888 130,487 130,622 
Securities sold under agreements to repurchase2,243,167 2,299,180 2,674,484 2,429,746 2,519,660 
Other borrowings1,119 1,362 90,796 1,230 1,860 
Total borrowings2,421,095 2,550,702 2,907,168 2,561,463 2,652,142 
Other liabilities429,744 403,831 423,998 395,336 402,265 
Total liabilities30,050,101 30,515,372 31,027,043 28,550,894 27,832,453 
Equity4,338,979 4,359,434 4,345,933 3,797,436 3,678,811 
Total liabilities and equity$34,389,080 $34,874,806 $35,372,976 $32,348,330 $31,511,264 

6

COMMERCE BANCSHARES, INC. and SUBSIDIARIES
AVERAGE RATES

(Unaudited)For the Three Months Ended
Sep. 30, 2026Jun. 30, 2026Mar. 31, 2026Dec. 31, 2025Sep. 30, 2025
ASSETS:
Loans:
Business (1)
5.39%5.39%5.41%5.48%5.72%
Real estate — construction and land6.42 6.40 6.59 7.05 7.37 
Real estate — business5.61 5.70 5.75 5.76 5.92 
Real estate — personal4.85 4.79 4.82 4.38 4.34 
Consumer5.97 6.12 6.20 6.23 6.42 
Revolving home equity7.21 7.27 7.29 7.25 7.94 
Consumer credit card12.54 12.58 12.64 12.81 13.21 
Overdrafts— — — — — 
Total loans5.71 5.73 5.79 5.84 6.02 
Loans held for sale6.23 6.31 4.98 5.01 6.03 
Investment securities:
U.S. government and federal agency obligations4.04 4.76 3.60 4.07 4.06 
Government-sponsored enterprise obligations2.35 2.38 2.40 2.36 2.35 
State and municipal obligations (1)
2.06 2.07 2.10 2.06 2.05 
Mortgage-backed securities2.06 2.10 2.12 2.05 2.01 
Asset-backed securities3.83 3.77 3.80 3.78 3.69 
Other debt securities3.15 3.16 3.17 2.97 2.97 
Total available for sale debt securities3.07 3.26 2.85 2.96 2.86 
Trading debt securities (1)
4.51 4.37 3.14 4.61 4.67 
Equity securities (1)
3.46 3.27 6.49 6.35 6.09 
Other securities (1)
7.84 9.28 6.81 9.08 7.29 
Total investment securities3.20 3.42 2.97 3.12 2.99 
Federal funds sold3.96 3.28 3.29 — — 
Securities purchased under agreements to resell4.04 4.03 4.03 4.00 4.00 
Interest earning deposits with banks3.74 3.70 3.70 3.95 4.45 
Total interest earning assets4.83 4.87 4.74 4.74 4.86 
LIABILITIES AND EQUITY:
Interest bearing deposits:
Savings.06 .06 .07 .05 .05 
Interest checking and money market1.54 1.45 1.48 1.45 1.54 
Certificates of deposit of less than $100,0002.96 3.07 3.17 3.25 3.33 
Certificates of deposit of $100,000 and over3.17 3.27 3.35 3.60 3.71 
Total interest bearing deposits1.63 1.57 1.61 1.62 1.71 
Borrowings:
Federal funds purchased3.73 3.67 3.66 3.92 4.34 
Securities sold under agreements to repurchase2.41 2.35 2.39 2.54 2.88 
Other borrowings1.06 .88 3.88 .65 1.71 
Total borrowings2.51 2.48 2.50 2.61 2.95 
Total interest bearing liabilities1.73%1.68%1.72%1.75%1.87%
Net yield on interest earning assets3.71%3.77%3.59%3.60%3.64%
(1) Stated on a fully taxable-equivalent basis using a federal income tax rate of 21%.







7

COMMERCE BANCSHARES, INC. and SUBSIDIARIES
CREDIT QUALITY

For the Three Months EndedFor the Nine Months Ended
(Unaudited)
(In thousands, except ratios)
Sep. 30, 2026Jun. 30, 2026Mar. 31, 2026Dec. 31, 2025Sep. 30, 2025Sep. 30, 2026Sep. 30, 2025
ALLOWANCE FOR CREDIT LOSSES ON LOANS
Balance at beginning of period$195,375 $198,605 $179,468 $175,671 $165,260 $179,468 $162,742 
     Initial allowance for credit loss at acquisition— — 22,828 — — 22,828 — 
     Provision for credit losses on loans13,068 6,311 11,283 13,660 20,739 30,662 43,753 
     Net charge-offs (recoveries):
        Commercial portfolio:
     Business763 224 241 222 826 1,228 1,304 
     Real estate — construction and land — — — 16 — — 24 
     Real estate — business(7)(7)5,405 (24)(23)5,391 (71)
756 217 5,646 214 803 6,619 1,257 
        Personal banking portfolio:
     Consumer credit card6,323 7,029 7,139 6,488 6,515 20,491 20,567 
     Consumer2,893 1,598 1,768 2,498 2,310 6,259 7,330 
     Overdraft493 411 413 485 432 1,317 1,287 
     Real estate — personal139 203 2 180 269 344 376 
     Revolving home equity(1)83 6 (2)(1)88 7 
9,847 9,324 9,328 9,649 9,525 28,499 29,567 
     Total net loan charge-offs10,603 9,541 14,974 9,863 10,328 35,118 30,824 
Balance at end of period$197,840 $195,375 $198,605 $179,468 $175,671 $197,840 $175,671 
LIABILITY FOR UNFUNDED LENDING COMMITMENTS$17,076 $20,119 $17,699 $17,660 $15,327 
NET CHARGE-OFF RATIOS (1)
Commercial portfolio:
     Business.04%.01%.01%.01%.05%.02%.03%
     Real estate — construction and land— — — — — — — 
     Real estate — business— — .54 — — .18 — 
.02 .01 .19 .01 .03 .07 .01 
Personal banking portfolio:
     Consumer credit card4.60 5.18 5.21 4.55 4.59 4.99 4.90 
     Consumer.43 .26 .30 .45 .42 .33 .46 
     Overdraft30.33 22.61 23.45 29.19 24.36 25.30 27.79 
     Real estate — personal.01 .02 — .02 .03 .01 .02 
     Revolving home equity— .05 — — — .02 — 
.48 .47 .47 .62 .61 .47 .65 
Total.20%.19%.30%.22%.23%.23%.24%
CREDIT QUALITY RATIOS
Non-accrual loans to total loans.05%.06%.05%.09%.09%
Allowance for credit losses on loans to total loans.93 .94 .97 1.01 .99 
NON-ACCRUAL AND PAST DUE LOANS
  Non-accrual loans:
     Business$268 $92 $201 $123 $255 
     Real estate — construction and land— — — — 191 
     Real estate — business9,135 9,365 9,369 14,785 14,940 
     Real estate — personal2,070 2,128 1,316 842 867 
     Revolving home equity32 33 34 — — 
   Total 11,505 11,618 10,920 15,750 16,253 
Loans past due 90 days and still accruing interest$26,409 $23,703 $22,824 $24,659 $21,536 
(1) Net charge-offs are annualized and calculated as a percentage of average loans (excluding loans held for sale).
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COMMERCE BANCSHARES, INC.
Management Discussion of Third Quarter Results
September 30, 2026
For the quarter ended September 30, 2026, net income amounted to $155.0 million, compared to $159.8 million in the previous quarter and $141.5 million in the same quarter last year. The decrease in net income from the previous quarter was primarily the result of lower net interest income and net securities gains, partly offset by lower non-interest expense. The net yield on interest earning assets decreased six basis points from the previous quarter to 3.71%. Average loans increased $172.3 million, while average deposits and available for sale investment securities, at fair value, decreased $361.6 million and $473.7 million, respectively, compared to the prior quarter. For the quarter, the return on average assets was 1.79%, the return on average equity was 14.17%, and the efficiency ratio was 56.69%.

Balance Sheet Review
During the 3rd quarter of 2026, average loans totaled $20.7 billion, an increase of $172.3 million over the prior quarter, and an increase of $3.2 billion over the same quarter last year. The increase in average balances over same quarter last year was primarily due to the acquisition of FineMark, which added $2.7 billion in loan balances on January 1, 2026. Compared to the previous quarter, average balances of consumer and business loans grew $180.5 million and $70.2 million, respectively, while average construction and personal real estate loan balances declined $74.5 million and $42.7 million, respectively. During the current quarter, the Company sold certain fixed rate personal real estate loans totaling $24.1 million, compared to $15.9 million in the prior quarter.

Total average available for sale debt securities decreased $473.7 million from the previous quarter to $8.2 billion, at fair value. The decrease in available for sale debt securities was mainly the result of lower average balances of mortgage-backed securities, partly offset by higher average balances of U.S. government and federal agency obligations. During the 3rd quarter of 2026, the unrealized loss on available for sale debt securities increased $228.8 million to $847.4 million, at period end. Also, during the 3rd quarter of 2026, purchases of available for sale debt securities totaled $263.8 million with a weighted average yield of approximately 4.88%. Sales, maturities and pay downs of available for sale debt securities were $432.3 million. On September 30, 2026, the duration of the available for sale investment portfolio was 4.1 years, and maturities and pay downs of approximately $1.1 billion are expected to occur during the next 12 months.

Total average deposits decreased $361.6 million this quarter compared to the previous quarter and increased $2.4 billion over the same quarter last year. The decrease in average balances compared to the prior quarter was primarily due to a decline of $283.3 million in interest checking and money market deposits, while the increase in average balances over the same quarter last year was primarily due to the FineMark acquisition.

Compared to the previous quarter, total average commercial deposits grew $103.9 million, while wealth and retail banking deposits declined $295.2 million and $145.8 million, respectively. The average loans to deposits ratio was 76.1% in the current quarter and 74.4% in the prior quarter. The Company’s average borrowings, which included average customer repurchase agreements of $2.2 billion, decreased $129.6 million to $2.4 billion in the 3rd quarter of 2026.

Net Interest Income
Net interest income in the 3rd quarter of 2026 amounted to $308.9 million, a decrease of $6.2 million from the previous quarter. On a fully taxable-equivalent (FTE) basis, net interest income for the current quarter decreased $6.2 million from the previous quarter to $311.3 million. The decrease in net interest income was mostly due to lower interest income on investment securities and deposits with banks and higher interest expense on deposits, partly offset by higher interest income on loans and securities purchased under resell agreements. Accretion income on FineMark’s loans resulting from purchase accounting adjustments totaled $5.0 million in the current quarter. The net yield (FTE) on earning assets decreased to 3.71%, from 3.77% in the prior quarter. The Company sold its portfolio of Treasury inflation-protected securities (TIPS) in the previous quarter. Excluding TIPS inflation income, the net yield (FTE) on interest earning assets was 3.66% in the previous quarter compared to 3.71% in the current quarter.

Compared to the previous quarter, interest income on loans (FTE) increased $4.5 million, mostly due to higher average balances of consumer loans and higher average rates earned on personal real estate loans. These increases were partly offset by lower average balances of construction loans and lower average rates earned on consumer loans. The average yield (FTE) on the loan portfolio decreased two basis points to 5.71% this quarter.

Interest income on investment securities (FTE) decreased $8.9 million from the prior quarter, mostly due to lower rates earned on U.S. government and federal agency obligations, which included TIPS inflation income of $9.1 million in the prior quarter, and lower average balances of mortgage-backed securities. Additionally, the Company recorded a $955 thousand adjustment to premium amortization at September 30, 2026, which increased interest income to reflect slower forward prepayment speed estimates on mortgage-backed securities. This increase was lower than the $1.1 million adjustment that increased interest income in the prior quarter. The average yield (FTE) on total investment securities was 3.20% in the current quarter, compared to 3.42% in the previous quarter.

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COMMERCE BANCSHARES, INC.                                
Management Discussion of Third Quarter Results
September 30, 2026
Compared to the previous quarter, interest income on deposits with banks decreased $2.6 million due to lower average balances, partly offset by higher average rates earned.

Interest expense increased $1.6 million compared to the previous quarter, mainly due to higher rates paid on interest checking and money market deposit accounts, partly offset by lower interest checking and short-term certificate of deposit balances. Interest expense on borrowings decreased $481 thousand mostly due to lower average balances of federal funds purchased and securities sold under repurchase agreements, partly offset by higher rates paid on securities sold under repurchase agreements. The average rate paid on interest bearing deposits was 1.63% in the current quarter compared to 1.57% in the prior quarter. The overall rate paid on interest bearing liabilities was 1.73% in the current quarter and 1.68% in the prior quarter.

Non-Interest Income
In the 3rd quarter of 2026, total non-interest income amounted to $185.5 million, an increase of $24.0 million, or 14.8%, over the same period last year and an increase of $1.6 million, or .9%, over the prior quarter. The increase in non-interest income over the same period last year was mainly due to higher trust fees, bank card fees and deposit account fees. The increase in non-interest income compared to the prior quarter was mainly due to higher trust fees and bank card fees, partially offset by lower capital market fees.

Total net bank card fees in the current quarter increased over the same period last year and the prior quarter by $3.6 million, or 8.0%, and $1.1 million, or 2.2%, respectively. Compared to the same period last year, net corporate card fees increased $3.6 million, or 14.2%, primarily due to higher interchange fees, partly offset by higher rewards expense. Net merchant fees increased $241 thousand, or 4.3%, while net debit card fees decreased $265 thousand, or 2.4%. Total net bank card fees this quarter were comprised of fees on corporate card ($28.7 million), debit card ($11.0 million), merchant ($5.8 million) and credit card ($3.7 million) transactions.

In the current quarter, trust fees increased $15.0 million, or 25.7%, over the same period last year, and increased $1.9 million, or 2.7%, over the prior quarter, mostly resulting from higher private client fees. Compared to the same period last year, deposit account fees increased $2.2 million, or 8.1%, mostly due to higher corporate cash management fees. In the current quarter, the Company recorded a $2.0 million gain on the sale of assets.

For the 3rd quarter of 2026, non-interest income comprised 37.5% of the Company’s total revenue.

Investment Securities Gains and Losses
The Company recorded net securities gains of $4.1 million in the current quarter, compared to net gains of $12.8 million in the prior quarter and $7.9 million in the 3rd quarter of 2025. Net securities gains in the current quarter resulted primarily from net gains of $13.4 million on the Company’s portfolio of private equity investments, driven by $8.1 million in fair value adjustments and a $5.5 million gain on the sale of an investment. In addition, gains of $3.1 million resulted from the Company’s sale of 206 thousand shares of Visa, Inc. (“Visa”) Class A common stock (converted from 51 thousand shares of Visa Class C common stock). As of September 30, 2026, the Company has sold all the Visa Class C shares it received from the 2026 Visa exchange offer. These gains were partly offset by losses of $12.4 million on sales of available for sale debt securities.

Non-Interest Expense
Non-interest expense for the current quarter amounted to $285.9 million, compared to $244.0 million in the same period last year and $297.1 million in the prior quarter. The increase in non-interest expense over the same period last year was mainly due to higher salaries and benefits expense, data processing and software expense, professional and other services expense, and intangible amortization expense. The decrease in non-interest expense from the prior quarter was mainly due to lower litigation expense and professional and other services expense, partly offset by higher healthcare expense.

Compared to the 3rd quarter of 2025, salaries and employee benefits expense increased $24.1 million, or 15.3%, mostly due to the onboarding of FineMark’s team members at the beginning of 2026. Acquisition-related salaries and benefits expense was $3.3 million in the current quarter. In addition, healthcare expense increased $4.1 million over the same period last year. Full-time equivalent employees totaled 4,969 and 4,666 at September 30, 2026 and 2025, respectively.

Compared to the same period last year, data processing and software expense increased $5.3 million mainly due to higher costs for service providers. Professional and other services expense increased $3.4 million compared to the 3rd quarter of 2025 and included $1.2 million in acquisition-related legal and professional services expense. The increase in other non-interest expense was mainly due to an increase of $5.4 million in intangible amortization expense related to the FineMark acquisition.

Income Taxes
The effective tax rate for the Company was 22.3% in the current quarter, 22.3% in the prior quarter, and 22.5% in the 3rd quarter of 2025.

Credit Quality
Net loan charge-offs in the 3rd quarter of 2026
10

COMMERCE BANCSHARES, INC.                                
Management Discussion of Third Quarter Results
September 30, 2026
amounted to $10.6 million, compared to $9.5 million in the prior quarter, and $10.3 million in the same period last year. The ratio of annualized net charge-offs to total average loans was .20% in the current quarter, .19% in the previous quarter, and .23% in the same quarter of last year. Compared to the prior quarter, net charge-offs on consumer and business loans increased $1.3 million and $539 thousand, respectively, while net charge-offs on consumer credit card loans decreased $706 thousand.

In the 3rd quarter of 2026, annualized net charge-offs on average consumer credit card loans were 4.60% compared to 5.18% in the previous quarter and 4.59% in the same quarter last year. Consumer loan net charge-offs were .43% of average consumer loans in the current quarter, .26% in the prior quarter, and .42% in the same quarter last year.

At September 30, 2026, the allowance for credit losses on loans totaled $197.8 million, or .93% of total loans, and increased $2.5 million compared to the prior quarter. Additionally, the liability for unfunded lending commitments on September 30, 2026 was $17.1 million, a decrease of $3.0 million compared to the liability on June 30, 2026.

At September 30, 2026, total non-accrual loans amounted to $11.5 million, a decrease of $113 thousand compared to the previous quarter. At September 30, 2026, the balance of non-accrual loans, which represented .05% of loans outstanding, included business real estate loans of $9.1 million, personal real estate loans of $2.1 million and business loans of $268 thousand. Loans more than 90 days past due and still accruing interest totaled $26.4 million at September 30, 2026.

Other
During the 3rd quarter of 2026, the Company paid a cash dividend of $.275 per common share, representing a 5% increase over the same period last year. The Company purchased approximately 1.9 million shares of treasury stock during the current quarter at an average price of $58.84.

Forward Looking Information
This information contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements include future financial and operating results, expectations, intentions, and other statements that are not historical facts. Such statements are based on current beliefs and expectations of the Company’s management and are subject to significant risks and uncertainties. Actual results may differ materially from those set forth in the forward-looking statements. Additional information about risks and uncertainties is included in the “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” sections within the Company's Annual Report on Form 10-K.
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