Isabella Bank Corporation (ISBA) came out with quarterly earnings of $0.55 per share, in line with the Zacks Consensus Estimate . This compares to earnings of $0.46 per share a year ago. These figures are adjusted for non-recurring items. A quarter ago, it was expected that this company would post earnings of $0.52 per share when it actually produced earnings of $0.57, delivering a surprise of +9.62%.Over the last four quarters, the company has surpassed consensus EPS estimates three times.Isabella Bank, wh ...

Exhibit 99.1 Isabella Bank Corporation Reports Second Quarter 2025 Results MT. PLEASANT, MICHIGAN — July 24, 2025 — Isabella Bank Corporation (Nasdaq: ISBA) ("Isabella" or the "Company") reported second quarter 2025 net income of $5.0 million, or $0.68 per diluted share, compared to $3.5 million, or $0.46 per diluted share, in the same quarter of 2024. Core net income (non-GAAP) in the second quarter of 2025 totaled $4.1 million, or $0.55 per diluted share, compared to $3.5 million, or $0.46 per diluted sha ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ Quarterly Report Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 For the quarterly period ended March 31, 2025 or ☐ Transition Report Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 For the transition period from to Commission File Number: 0-18415 Isabella Bank Corporation (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or orga ...

Exhibit 99.1 Isabella Bank Corporation Reports First Quarter 2025 Results MT. PLEASANT, MICHIGAN — April 17, 2025 — Isabella Bank Corporation (OTCQX: ISBA) (the "Company" or "we") reported first quarter 2025 net income of $3.9 million, or $0.53 per diluted share, compared to $3.1 million, or $0.42 per diluted share in the same quarter of 2024. The non-GAAP measure of core earnings in the first quarter 2025 totaled $4.3 million, or $0.57 per diluted share, compared to $3.1 million, or $0.41 per diluted share ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 0-18415 Isabella Bank Corporation (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorpor ...

Exhibit 99.1 Isabella Bank Corporation Reports Fourth Quarter 2024 Results MT. PLEASANT, MICHIGAN — January 30, 2025 — Isabella Bank Corporation (OTCQX: ISBA) (the "Company" or "we") reported fourth quarter 2024 net income of $4.0 million, or $0.54 per diluted share, an increase compared to $3.8 million, or $0.51 per diluted share in the same quarter of 2023. The non-GAAP measure of core earnings in the fourth quarter 2024 totaled $3.9 million, or $0.52 per diluted share, an increase compared to $3.8 millio ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ Quarterly Report Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 For the quarterly period ended September 30, 2024 or ☐ Transition Report Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 For the transition period from to Commission File Number: 0-18415 Isabella Bank Corporation (Exact name of registrant as specified in its charter) Indicate by check mark whether the registrant (1) ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ Quarterly Report Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 For the quarterly period ended June 30, 2024 or ☐ Transition Report Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 For the transition period from to Commission File Number: 0-18415 Isabella Bank Corporation (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or organ ...

For the quarterly period ended March 31, 2024 or ☐ Transition Report Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 For the transition period from to Washington, D.C. 20549 FORM 10-Q UNITED STATES SECURITIES AND EXCHANGE COMMISSION ☒ Quarterly Report Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Commission File Number: 0-18415 Isabella Bank Corporation (Exact name of registrant as specified in its charter) Michigan 38-2830092 (State or other jurisdiction of i ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 0-18415 Isabella Bank Corporation (Exact name of registrant as specified in its charter) (State or other jurisdiction of incorporation or organization) Michigan 38-2830092 (I.R.S. Employer identification No.) For the fiscal year ended December 31, 2023 OR ☐ TRANSITIO ...