AUBURN NATIONAL BANCORPORATION, INC

Consolidated Balance Sheets (Unaudited) as of June 30, 2026 and December 31, 2025

Consolidated Statements of Earnings (Unaudited) for the quarter and six months ended June 30, 2026

Consolidated Statements of Comprehensive Income (Unaudited) for the quarter and six months ended

June 30, 2026 and 2025

Consolidated Statements of Stockholders’ Equity (Unaudited) for the quarter and six months ended

June 30, 2026 and 2025

Consolidated Statements of Cash Flows (Unaudited) for the six months ended June 30, 2026 and 2025

Notes to Consolidated Financial Statements (Unaudited

)

Management’s Discussion and Analysis of Financial Condition and Results of Operations

Table 1 – Explanation of Non-GAAP Financial Measures

Table 2 – Selected Quarterly Financial Data

Table 3 – Selected Financial Data

Table 4 – Average Balances and Net Interest Income Analysis – for the quarter ended June 30, 2026

Table 5 – Average Balances and Net Interest Income Analysis – for the six months ended June 30, 2026

Table 6 – Volume and Rate Variance Analysis for the quarter and six months ended June 30, 2026

Table 7 – Loan Maturities

Table 8 – Loan Sensitivities to Changes in Interest Rates on Loans Maturing in More Than One Year

Quantitative and Qualitative Disclosures About Market Risk

Controls and Procedures

PART II. OTHER INFORMATION

Legal Proceedings

Risk Factors

Unregistered Sales of Equity Securities and Use of Proceeds

Defaults Upon Senior Securities

Mine Safety Disclosures

Other Information

Exhibits

PART

I.

FINANCIAL INFORMATION

Consolidated Balance Sheets

(Dollars in thousands, except share data)

Assets:

$

20,009

$

22,335

37,953

21,322

153,687

104,175

Cash and cash equivalents

211,649

147,832

Securities available-for-sale

220,744

233,259

579,589

565,354

(6,586)

(7,176)

573,003

558,178

Premises and equipment, net

44,856

45,600

17,955

17,927

16,880

15,829

$

$

Liabilities:

Noninterest-bearing

$

258,351

$

268,026

Interest-bearing

729,967

654,900

988,318

922,926

Accrued expenses and other liabilities

3,611

3,818

Total liabilities

991,929

926,744

Stockholders' equity:

Preferred stock of $

.01

par value; authorized

200,000

shares;

no shares issued

—

—

Common stock of $

.01

par value; authorized

8,500,000

shares; issued

3,959,302

shares at June 30, 2026 and

3,957,135

shares at December 31, 2025, respectively

Additional paid-in capital

3,871

3,864

Retained earnings

121,852

119,241

Accumulated other comprehensive loss, net

(19,390)

Less treasury stock, at cost -

471,472

shares and

463,436

shares at June 30, 2026

and December 31, 2025, respectively

Total stockholders’

equity

93,874

92,053

Total liabilities and stockholders’

equity

$

$

S