Hawthorn Bancshares announces Q3 2026 results and dividend

Item 2.02 Results of Operations and Financial Condition.

On October 30, 2026, Hawthorn Bancshares, Inc. issued a press release announcing its financial results for the three and nine months ended September 30, 2026. A copy of the press release is attached to this report as Exhibit 99.1.

The information set forth in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1, is being "furnished" and shall not be deemed "filed" for the purposes of or otherwise subject to liabilities under Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be deemed to be incorporated by reference into the filings of Hawthorn Bancshares, Inc. under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended.

Item 8.01 Other Events.

On October 30, 2026, Hawthorn Bancshares, Inc. announced that on October 28, 2026 its Board of Directors approved a quarterly cash dividend of $0.21 per common share. The dividend is payable on January 1, 2027 to shareholders of record at the close of business on December 15, 2026. A copy of the press release relating to such announcement is attached to this report as Exhibit 99.2.

Item 9.01 Financial Statements and Exhibits.

Exhibit No Description

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

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SIGNATURES

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

Dated: October 30, 2026

Hawthorn Bancshares, Inc.

By: /s/ Brent M. Giles

Name: Brent M. Giles

Title: Chief Executive Officer

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Hawthorn Bancshares Reports Third Quarter 2026 Results

Jefferson City, MO — October 30, 2026 — Hawthorn Bancshares, Inc. (NASDAQ: HWBK) , (the "Company"), the bank holding company for Hawthorn Bank, reported third quarter 2026 net income of $7.1 million, or earnings per diluted share ("EPS") of $1.01.

Third Quarter 2026 Results

• Net income improved $0.9 million, or 15.2%, to $7.1 million from the third quarter 2025 (the "prior year quarter"). Adjusted net income (a) for the third quarter 2026 was $8.6 million. The efficiency ratio was 65.00% compared to 62.30% for the prior year quarter. The adjusted efficiency ratio (a) for the third quarter 2026 was 55.64%.

• EPS of $1.01, an improvement of $0.13 per share, or 15%, from the prior year quarter. Adjusted EPS (a) for the third quarter 2026 was $1.23, an increase of 38.2% over the prior year quarter.

• Net interest margin, fully taxable equivalent ("FTE") improved in the third quarter 2026 to 4.41% compared to 4.16% for the second quarter 2026 (the "prior quarter") and 3.97% for the prior year quarter

• Provision for credit losses was $0.1 million higher than the prior quarter

• Return