HWBK

EX-99.1

2 q22026earnings-ex991626.htm

EX-99.1

Document

Exhibit 99.1

Hawthorn Bancshares Reports Second Quarter 2026 Results

Jefferson City, MO — July 29, 2026 — Hawthorn Bancshares, Inc. (NASDAQ: HWBK), (the “Company”), the bank holding company for Hawthorn Bank, reported second quarter 2026 net income of $7.3 million, or earnings per diluted share (“EPS”) of $1.06.

Second Quarter 2026 Results

•Net income improved $1.2 million, or 20.1%, to $7.3 million from the second quarter 2025 (the "prior year quarter") and the efficiency ratio improved to 60.66% compared to 62.32% for the prior year quarter

•EPS of $1.06, an improvement of $0.18 per share, or 20%, from the prior year quarter

•Net interest margin, fully taxable equivalent ("FTE") improved in the second quarter 2026 to 4.16% compared to 4.07% for the first quarter 2026 (the "prior quarter”) and 3.89% for the prior year quarter

•Provision for credit losses was $0.2 million higher than the prior quarter

•Return on average assets and equity of 1.63% and 16.39%, respectively

•Loans decreased $37.8 million, or 2.6%, and deposits decreased $30.1 million, or 2.0%, compared to the prior quarter

•Investments increased $25.4 million, or 12.0%, compared to the prior quarter

•Credit quality remained stable with non-performing assets to total loans of 0.53% compared to 0.35% in the prior year quarter

•Remained "well capitalized" with total risk-based capital of 16.40%

•Book value per share was $26.50, an increase of $1.07, or 4.2%, compared to the prior quarter and $3.97, or 17.6%, compared to the prior year quarter

(unaudited)

1

$000, except per share data

June 30,March 31,June 30,

202620262025

Balance sheet information

Total assets$1,773,040$1,855,860$1,877,417

Loans held for investment1,416,3601,454,1711,462,898

Investment securities236,171210,808229,392

Deposits1,488,1891,518,3161,517,986

Total stockholders’ equity182,794175,386156,823

Market and per share data

Book value per share$26.50 $25.43 $22.53

Market price per share39.30 33.69 29.14

Diluted earnings per share (QTR) 1.06 0.83 0.88

Financial Results for the Second Quarter 2026

Earnings

Net income for the second quarter 2026 was $7.3 million, an increase of $1.58 million, or 27.6%, from the prior quarter, and an increase of $1.2 million, or 20.1%, from the prior year quarter. EPS improved to $1.06 for the second quarter 2026 compared to $0.83 for the prior quarter and $0.88 for the prior year quarter.

Net Interest Income and Net Interest Margin

Net interest income for the second quarter 2026 was $17.3 million, an increase of $0.2 million from the prior quarter, and an increase of $1.1 million from the prior year quarter.

Interest income increased $0.4 million compared to the prior year quarter, driven primarily by higher rates on earning assets in the current quarter, while interest expense decreased $0.7 million compared to the prior year quarter due to lower costs on deposits. Net interest margin, on an FTE basis, was 4.16% for the current quarter, compared to 4.07% for the prior quarter, and 3.89% for the prior year quarter.

The yield earned on average loans held for investment increased to 6.18%, on an FTE basis, for the second quarter 2026, compared to 6.11% for the prior quarter and 5.98% for the prior year quarter.

The average cost of deposits was 2.13% for the second quarter 2026, compared to 2.15% for the prior quarter and 2.35% for the prior year quarter. Non-interest bearing demand deposits as a percent of total deposits was 28.0% as of June 30, 2026, compared to 28.0% and 27.7% at March 31, 2026 and June 30, 2025, respectively.

2

Non-interest Income

Total non-interest income for the second quarter 2026 was $5.3 million, an increase of $2.2 million, or 72.1%, from the prior quarter, and an increase of $1.8 million, or 50.6%, from the prior year quarter. The increase during the quarter was primarily due the recognition of a gain the sale of a bank administrative office that was no longer being used.

Non-interest Expense

Total non-interest expense for the second quarter 2026 was $13.7 million, an increase of $0.7 million, or 5.4%, from the prior quarter, and an increase of $1.4 million, or 11.7%, from the prior year quarter.

The second quarter 2026 efficiency ratio was 60.66% compared to 64.29% and 62.32% for the prior quarter and prior year quarter, respectively. The improvement in the current quarter compared to the prior year quarter was primarily due to higher net interest margin and an increase in non-interest income.

Loans

Loans held for investment decreased $37.8 million, or 2.6%, to $1.42 billion as of June 30, 2026 compared to March 31, 2026, and decreased $46.5 million, or 3.2% from June 30, 2025.

Investments

Investments increased $25.4 million, or 12.0%, to $236.2 million as of June 30, 2026 compared to March 31, 2026, and increased $6.8 million, or 3.0%, from June 30, 2025.

Asset Quality

Non-performing assets to total loans was 0.53% at

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hwbk-202601280000893847FALSE132 East High StreetPO Box 688Jefferson CityMissouri6510200008938472026-01-282026-01-28

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): January 28, 2026

Hawthorn Bancshares, Inc. (Exact Name of Registrant as Specified in Charter)

Missouri0-2363643-1626350 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

132 East High Street, PO Box 688, Jefferson City, Missouri 65102 (Address of Principal Executive Offices) (Zip Code)

573-761-6100 (Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueHWBKThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 2.02 Results of Operations and Financial Condition. On January 28, 2026, Hawthorn Bancshares, Inc. issued a press release announcing its financial results for the fourth quarter and year ended December 31, 2025. 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 January 28, 2026, Hawthorn Bancshares, Inc. announced that its Board of Directors approved a quarterly cash dividend of $0.21 per common share, an increase of $0.01 per common share, or 5%, from the previous quarterly dividend. The dividend is payable on April 1, 2026 to shareholders of record at the close of business on March 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 NoDescription

99.1Press release, dated January 28, 2026, issued by Hawthorn Bancshares, Inc. announcing its financial results for the fourth quarter and year ended December 31, 2025.

99.2Press release, dated January 28, 2026, issued by Hawthorn Bancshares, Inc. announcing cash dividends.

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

2

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: January 28, 2026 Hawthorn Bancshares, Inc. By: /s/ Brent M. Giles Name: Brent M. Giles Title: Chief Executive Officer

3

hwbk-202510290000893847FALSE132 East High StreetPO Box 688Jefferson CityMissouri6510200008938472025-10-292025-10-29

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): October 29, 2025

Hawthorn Bancshares, Inc. (Exact Name of Registrant as Specified in Charter)

Missouri0-2363643-1626350 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

132 East High Street, PO Box 688, Jefferson City, Missouri 65102 (Address of Principal Executive Offices) (Zip Code)

573-761-6100 (Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueHWBKThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 2.02 Results of Operations and Financial Condition. On October 29, 2025, Hawthorn Bancshares, Inc. issued a press release announcing its financial results for the three and nine months ended September 30, 2025. 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 29, 2025, Hawthorn Bancshares, Inc. announced that its Board of Directors approved a quarterly cash dividend of $0.20 per common share, payable January 1, 2026 to shareholders of record at the close of business on December 15, 2025. 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 NoDescription

99.1Press release, dated October 29, 2025, issued by Hawthorn Bancshares, Inc. announcing its financial results for the three and nine months ended September 30, 2025.

99.2Press release, dated October 29, 2025, issued by Hawthorn Bancshares, Inc. announcing cash dividends.

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

2

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 29, 2025 Hawthorn Bancshares, Inc. By: /s/ Brent M. Giles Name: Brent M. Giles Title: Chief Executive Officer

3

hwbk-202507300000893847FALSE00008938472025-07-302025-07-30

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): July 30, 2025

Hawthorn Bancshares, Inc. (Exact Name of Registrant as Specified in Charter)

Missouri0-2363643-1626350 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

132 East High Street, PO Box 688, Jefferson City, Missouri 65102 (Address of Principal Executive Offices) (Zip Code)

573-761-6100 (Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueHWBKThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 2.02 Results of Operations and Financial Condition. On July 30, 2025, Hawthorn Bancshares, Inc. issued a press release announcing its financial results for the three and six months ended June 30, 2025. 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 July 30, 2025, Hawthorn Bancshares, Inc. announced that its Board of Directors approved a quarterly cash dividend of $0.20 per common share, payable October 1, 2025 to shareholders of record at the close of business on September 15, 2025. 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 NoDescription

99.1Press release, dated July 30, 2025, issued by Hawthorn Bancshares, Inc. announcing its financial results for the three and six months ended June 30, 2025.

99.2Press release, dated July 30, 2025, issued by Hawthorn Bancshares, Inc. announcing cash dividends.

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

2

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: July 30, 2025 Hawthorn Bancshares, Inc. By: /s/ Brent M. Giles Name: Brent M. Giles Title: Chief Executive Officer

3

hwbk-202504300000893847FALSE00008938472025-04-302025-04-30

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): April 30, 2025

Hawthorn Bancshares, Inc. (Exact Name of Registrant as Specified in Charter)

Missouri0-2363643-1626350 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

132 East High Street, PO Box 688, Jefferson City, Missouri 65102 (Address of Principal Executive Offices) (Zip Code)

573-761-6100 (Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueHWBKThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 2.02 Results of Operations and Financial Condition. On April 30, 2025, Hawthorn Bancshares, Inc. issued a press release announcing its financial results for the three months ended March 31, 2025. 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 April 30, 2025, Hawthorn Bancshares, Inc. announced that its Board of Directors approved a quarterly cash dividend of $0.20 per common share, payable July 1, 2025 to shareholders of record at the close of business on June 15, 2025. 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 NoDescription

99.1Press release, dated April 30, 2025, issued by Hawthorn Bancshares, Inc. announcing its financial results for the three months ended March 31, 2025.

99.2Press release, dated April 30, 2025, issued by Hawthorn Bancshares, Inc. announcing cash dividends.

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

2

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: April 30, 2025 Hawthorn Bancshares, Inc. By: /s/ Brent M. Giles Name: Brent M. Giles Title: Chief Executive Officer

3

hwbk-202501220000893847FALSE00008938472025-01-222025-01-22

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): January 22, 2025

Hawthorn Bancshares, Inc. (Exact Name of Registrant as Specified in Charter)

Missouri0-2363643-1626350 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

132 East High Street, PO Box 688, Jefferson City, Missouri 65102 (Address of Principal Executive Offices) (Zip Code)

573-761-6100 (Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueHWBKThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 2.02 Results of Operations and Financial Condition. On January 22, 2025, Hawthorn Bancshares, Inc. issued a press release announcing its financial results for the fourth quarter and the year ended December 31, 2024. 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 January 22, 2025, Hawthorn Bancshares, Inc. announced that its Board of Directors approved a quarterly cash dividend of $0.19 per common share, payable April 1, 2025 to shareholders of record at the close of business on March 15, 2025. 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 NoDescription

99.1Press release, dated January 22, 2025, issued by Hawthorn Bancshares, Inc. announcing its financial results for the fourth quarter and the year ended December 31, 2024.

99.2Press release, dated January 22, 2025, issued by Hawthorn Bancshares, Inc. announcing cash dividends.

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

2

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: January 22, 2025 Hawthorn Bancshares, Inc. By: /s/ Brent M. Giles Name: Brent M. Giles Title: Chief Executive Officer

3

hwbk-202410300000893847FALSE00008938472024-10-302024-10-30

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): October 30, 2024

Hawthorn Bancshares, Inc. (Exact Name of Registrant as Specified in Charter)

Missouri0-2363643-1626350 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

132 East High Street, PO Box 688, Jefferson City, Missouri 65102 (Address of Principal Executive Offices) (Zip Code)

573-761-6100 (Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueHWBKThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 2.02 Results of Operations and Financial Condition. On October 30, 2024, Hawthorn Bancshares, Inc. issued a press release announcing its financial results for the three and nine months ended September 30, 2024. 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, 2024, Hawthorn Bancshares, Inc. announced that its Board of Directors approved a quarterly cash dividend of $0.19 per common share, payable January 1, 2025 to shareholders of record at the close of business on December 15, 2024. 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 NoDescription

99.1Press release, dated October 30, 2024, issued by Hawthorn Bancshares, Inc. announcing its financial results for the three and nine months ended September 30, 2024.

99.2Press release, dated October 30, 2024, issued by Hawthorn Bancshares, Inc. announcing cash dividends.

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2

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, 2024 Hawthorn Bancshares, Inc. By: /s/ Brent M. Giles Name: Brent M. Giles Title: Chief Executive Officer

3

hwbk-202407300000893847FALSE00008938472024-07-302024-07-30

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): July 30, 2024

Hawthorn Bancshares, Inc. (Exact Name of Registrant as Specified in Charter)

Missouri0-2363643-1626350 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

132 East High Street, PO Box 688, Jefferson City, Missouri 65102 (Address of Principal Executive Offices) (Zip Code)

573-761-6100 (Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueHWBKThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 2.02 Results of Operations and Financial Condition. On July 30, 2024, Hawthorn Bancshares, Inc. issued a press release announcing its financial results for the three and six months ended June 30, 2024. 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 July 30, 2024, Hawthorn Bancshares, Inc. announced that its Board of Directors approved a quarterly cash dividend of $0.19 per common share, payable October 1, 2024 to shareholders of record at the close of business on September 15, 2024. 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 NoDescription

99.1Press release, dated July 30, 2024, issued by Hawthorn Bancshares, Inc. announcing its financial results for the three and six months ended June 30, 2024.

99.2Press release, dated July 30, 2024, issued by Hawthorn Bancshares, Inc. announcing cash dividends.

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2

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: July 30, 2024 Hawthorn Bancshares, Inc. By: /s/ Brent M. Giles Name: Brent M. Giles Title: Chief Executive Officer

3

hwbk-202404240000893847FALSE00008938472024-04-242024-04-24

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): April 24, 2024

Hawthorn Bancshares, Inc. (Exact Name of Registrant as Specified in Charter)

Missouri0-2363643-1626350 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

132 East High Street, PO Box 688, Jefferson City, Missouri 65102 (Address of Principal Executive Offices) (Zip Code)

573-761-6100 (Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueHWBKThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 2.02 Results of Operations and Financial Condition. On April 24, 2024, Hawthorn Bancshares, Inc. issued a press release announcing its financial results for the three months ended March 31, 2024. 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 April 24, 2024, Hawthorn Bancshares, Inc. announced that its Board of Directors approved a quarterly cash dividend of $0.19 per common share, payable July 1, 2024 to shareholders of record at the close of business on June 15, 2024. 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 NoDescription

99.1Press release, dated April 24, 2024, issued by Hawthorn Bancshares, Inc. announcing its financial results for the three months ended March 31, 2024.

99.2Press release, dated April 24, 2024, issued by Hawthorn Bancshares, Inc. announcing cash dividends.

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2

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: April 24, 2024 Hawthorn Bancshares, Inc. By: /s/ Brent M. Giles Name: Brent M. Giles Title: Chief Executive Officer

3

hwbk-202401300000893847FALSE00008938472024-01-302024-01-30

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): January 30, 2024

Hawthorn Bancshares, Inc. (Exact Name of Registrant as Specified in Charter)

Missouri0-2363643-1626350 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

132 East High Street, PO Box 688, Jefferson City, Missouri 65102 (Address of Principal Executive Offices) (Zip Code)

573-761-6100 (Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueHWBKThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 2.02 Results of Operations and Financial Condition. On January 30, 2024, Hawthorn Bancshares, Inc. issued a press release announcing its financial results for the year ended December 31, 2023. A copy of the press release is attached to this report as an 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 January 30, 2024, Hawthorn Bancshares, Inc. announced that its Board of Directors approved a quarterly cash dividend of 0.17 per common share, payable April 1, 2024 to shareholders of record at the close of business on March 15, 2024. A copy of the press release relating to such announcement is attached to this report as an Exhibit 99.2. Item 9.01 Financial Statements and Exhibits.

Exhibit NoDescription

99.1Press release, dated January 30, 2024, issued by Hawthorn Bancshares, Inc. announcing its financial results for the year ended December 31, 2023.

99.2Press release, dated January 30, 2024, issued by Hawthorn Bancshares, Inc. announcing cash dividends.

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2

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: January 30, 2024 Hawthorn Bancshares, Inc. By: /s/ Brent M. Giles Name: Brent M. Giles Title: Chief Executive Officer

3

hwbk-202310250000893847FALSE00008938472023-10-252023-10-25

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): October 25, 2023

Hawthorn Bancshares, Inc. (Exact Name of Registrant as Specified in Charter)

Missouri0-2363643-1626350 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

132 East High Street, PO Box 688, Jefferson City, Missouri 65102 (Address of Principal Executive Offices) (Zip Code)

573-761-6100 (Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueHWBKThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 2.02 Results of Operations and Financial Condition. On October 25, 2023, Hawthorn Bancshares, Inc. issued a press release announcing its financial results for the three and nine months ended September 30, 2023. A copy of the press release is attached to this report as an 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 25, 2023, Hawthorn Bancshares, Inc. announced that its Board of Directors approved a quarterly cash dividend of $0.17 per common share, payable January 1, 2024 to shareholders of record at the close of business on December 15, 2023. A copy of the press release relating to such announcement is attached to this report as an Exhibit 99.2. Item 9.01 Financial Statements and Exhibits.

Exhibit NoDescription

99.1Press release, dated October 25, 2023, issued by Hawthorn Bancshares, Inc. announcing its financial results for the three and nine months ended September 30, 2023.

99.2Press release, dated October 25, 2023, issued by Hawthorn Bancshares, Inc. announcing cash dividends.

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2

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 25, 2023 Hawthorn Bancshares, Inc. By: /s/ Brent M. Giles Name: Brent M. Giles Title: Chief Executive Officer

3

hwbk-202307260000893847FALSE00008938472023-04-262023-04-26

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): July 26, 2023

Hawthorn Bancshares, Inc. (Exact Name of Registrant as Specified in Charter)

Missouri0-2363643-1626350 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

132 East High Street, PO Box 688, Jefferson City, Missouri 65102 (Address of Principal Executive Offices) (Zip Code)

573-761-6100 (Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueHWBKThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 2.02 Results of Operations and Financial Condition. On July 26, 2023, Hawthorn Bancshares, Inc. issued a press release announcing its financial results for the three and six months ended June 30, 2023. A copy of the press release is attached to this report as an exhibit. 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 July 26, 2023, Hawthorn Bancshares, Inc. announced that its Board of Directors approved a quarterly cash dividend of $0.17 per common share, payable October 1, 2023 to shareholders of record at the close of business on September 15, 2023. A copy of the press release relating to such announcement is attached to this report as an exhibit. Item 9.01 Financial Statements and Exhibits.

Exhibit NoDescription

99.1Press release, dated July 26, 2023, issued by Hawthorn Bancshares, Inc. announcing its financial results for the three and six months ended June 30, 2023.

99.2Press release, dated July 26, 2023, issued by Hawthorn Bancshares, Inc. announcing cash dividends.

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2

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: July 26, 2023 Hawthorn Bancshares, Inc. By: /s/ Brent M. Giles Name: Brent M. Giles Title: Chief Executive Officer

3

hwbk-202304260000893847FALSE00008938472023-04-262023-04-26

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): April 26, 2023

Hawthorn Bancshares, Inc. (Exact Name of Registrant as Specified in Charter)

Missouri0-2363643-1626350 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

132 East High Street, PO Box 688, Jefferson City, Missouri 65102 (Address of Principal Executive Offices) (Zip Code)

573-761-6100 (Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueHWBKThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 2.02 Results of Operations and Financial Condition. On April 26, 2023, Hawthorn Bancshares, Inc. issued a press release announcing its financial results for the three months ended March 31, 2023. A copy of the press release is attached to this report as an exhibit. 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 April 26, 2023, Hawthorn Bancshares, Inc. announced that its Board of Directors approved a quarterly cash dividend of $0.17 per common share, payable July 1, 2023 to shareholders of record at the close of business on June 15, 2023, and a special stock dividend of 4% per common share payable July 1, 2023 to shareholders of record at the close of business on June 15, 2023. A copy of the press release relating to such announcement is attached to this report as an exhibit. Item 9.01 Financial Statements and Exhibits.

Exhibit NoDescription

99.1Press release, dated April 26, 2023, issued by Hawthorn Bancshares, Inc. announcing its financial results for the three months ended March 31, 2023.

99.2Press release, dated April 26, 2023, issued by Hawthorn Bancshares, Inc. announcing cash and stock dividends.

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2

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: April 26, 2023 Hawthorn Bancshares, Inc. By: /s/ David T. Turner Name: David T. Turner Title: Chairman, CEO & President

3

hwbk-202301300000893847FALSE00008938472023-01-302023-01-30

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): January 30, 2023

Hawthorn Bancshares, Inc. (Exact Name of Registrant as Specified in Charter)

Missouri0-2363643-1626350 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

132 East High Street, PO Box 688, Jefferson City, Missouri 65102 (Address of Principal Executive Offices) (Zip Code)

573-761-6100 (Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueHWBKThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 2.02 Results of Operations and Financial Condition. On January 30, 2023, Hawthorn Bancshares, Inc. issued a press release announcing its financial results for the year ended December 31, 2022. A copy of the press release is attached to this report as an exhibit. 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 January 30, 2023, Hawthorn Bancshares, Inc. announced that its Board of Directors approved a quarterly cash dividend of $0.17 per common share, payable April 1, 2023 to shareholders of record at the close of business on March 15, 2023. A copy of the press release relating to such announcement is attached to this report as an exhibit. Item 9.01 Financial Statements and Exhibits.

Exhibit NoDescription

99.1Press release, dated January 30, 2023, issued by Hawthorn Bancshares, Inc. announcing its financial results for the year ended December 31, 2022.

99.2Press release, dated January 30, 2023, issued by Hawthorn Bancshares, Inc. announcing cash dividends.

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2

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: January 30, 2023 Hawthorn Bancshares, Inc. By: /s/ David T. Turner Name: David T. Turner Title: Chairman, CEO & President

3

hwbk-202210260000893847FALSE00008938472022-10-262022-10-26

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): October 26, 2022

Hawthorn Bancshares, Inc. (Exact Name of Registrant as Specified in Charter)

Missouri0-2363643-1626350 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

132 East High Street, PO Box 688, Jefferson City, Missouri 65102 (Address of Principal Executive Offices) (Zip Code)

573-761-6100 (Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueHWBKThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 2.02 Results of Operations and Financial Condition. On October 26, 2022, Hawthorn Bancshares, Inc. issued a press release announcing its financial results for the three and nine months ended September 30, 2022. A copy of the press release is attached to this report as an exhibit. 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 26, 2022, Hawthorn Bancshares, Inc. announced that its Board of Directors approved a quarterly cash dividend of $0.17 per common share, payable January 1, 2023 to shareholders of record at the close of business on December 15, 2022. A copy of the press release relating to such announcement is attached to this report as an exhibit. Item 9.01 Financial Statements and Exhibits.

Exhibit NoDescription

99.1Press release, dated October 26, 2022, issued by Hawthorn Bancshares, Inc. announcing its financial results for the three and nine months ended September 30, 2022.

99.2Press release, dated October 26, 2022, issued by Hawthorn Bancshares, Inc. announcing cash dividends.

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2

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 26, 2022 Hawthorn Bancshares, Inc. By: /s/ David T. Turner Name: David T. Turner Title: Chairman, CEO & President

3

hwbk-202207270000893847FALSE00008938472022-07-272022-07-27

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): July 27, 2022

Hawthorn Bancshares, Inc. (Exact Name of Registrant as Specified in Charter)

Missouri0-2363643-1626350 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

132 East High Street, PO Box 688, Jefferson City, Missouri 65102 (Address of Principal Executive Offices) (Zip Code)

573-761-6100 (Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueHWBKThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 2.02 Results of Operations and Financial Condition. On July 27, 2022, Hawthorn Bancshares, Inc. issued a press release announcing its financial results for the three and six months ended June 30, 2022. A copy of the press release is attached to this report as an exhibit. 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 July 27, 2022, Hawthorn Bancshares, Inc. announced that its Board of Directors approved a quarterly cash dividend of $0.17 per common share, payable October 1, 2022 to shareholders of record at the close of business on September 15, 2022. A copy of the press release relating to such announcement is attached to this report as an exhibit. Item 9.01 Financial Statements and Exhibits.

Exhibit NoDescription

99.1Press release, dated July 27, 2022, issued by Hawthorn Bancshares, Inc. announcing its financial results for the three and six months ended June 30, 2022.

99.2Press release, dated July 27, 2022, issued by Hawthorn Bancshares, Inc. announcing cash dividends.

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2

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: July 27, 2022 Hawthorn Bancshares, Inc. By: /s/ David T. Turner Name: David T. Turner Title: Chairman, CEO & President

3

hwbk-202204290000893847FALSE00008938472022-04-292022-04-29

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): April 29, 2022

Hawthorn Bancshares, Inc. (Exact Name of Registrant as Specified in Charter)

Missouri0-2363643-1626350 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

132 East High Street, PO Box 688, Jefferson City, Missouri 65102 (Address of Principal Executive Offices) (Zip Code)

573-761-6100 (Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueHWBKThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 2.02 Results of Operations and Financial Condition. On April 29, 2022, Hawthorn Bancshares, Inc. issued a press release announcing its financial results for the three months ended March 31, 2022. A copy of the press release is attached to this report as an exhibit. 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 April 29, 2022, Hawthorn Bancshares, Inc. announced that its Board of Directors approved a quarterly cash dividend of $0.17 per common share, payable July 1, 2022 to shareholders of record at the close of business on June 15, 2022, and a special stock dividend of 4% per common share payable July 1, 2022 to shareholders of record at the close of business on June 15, 2022. A copy of the press release relating to such announcement is attached to this report as an exhibit. Item 9.01 Financial Statements and Exhibits.

Exhibit NoDescription

99.1Press release, dated April 29, 2022, issued by Hawthorn Bancshares, Inc. announcing its financial results for the three months ended March 31, 2022.

99.2Press release, dated April 29, 2022, issued by Hawthorn Bancshares, Inc. announcing cash and stock dividends.

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2

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: April 29, 2022 Hawthorn Bancshares, Inc. By: /s/ David T. Turner Name: David T. Turner Title: Chairman, CEO & President

3

hwbk-202201280000893847FALSE00008938472022-01-282022-01-28

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): January 28, 2022

Hawthorn Bancshares, Inc. (Exact Name of Registrant as Specified in Charter)

Missouri0-2363643-1626350 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)

132 East High Street, PO Box 688, Jefferson City, Missouri 65102 (Address of Principal Executive Offices) (Zip Code)

573-761-6100 (Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ☐    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)

Securities registered pursuant to Section 12(b) of the Act:

Title of each classTrading Symbol(s)Name of each exchange on which registered Common Stock, $1.00 par valueHWBKThe Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 2.02 Results of Operations and Financial Condition. On January 28, 2022, Hawthorn Bancshares, Inc. issued a press release announcing its financial results for the year ended December 31, 2021. A copy of the press release is attached to this report as an exhibit. 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 January 28, 2022, Hawthorn Bancshares, Inc. announced that its Board of Directors approved a quarterly cash dividend of $0.15 per common share, payable April 1, 2022 to shareholders of record at the close of business on March 15, 2022. A copy of the press release relating to such announcement is attached to this report as an exhibit. Item 9.01 Financial Statements and Exhibits.

Exhibit NoDescription

99.1Press release, dated January 28, 2022, issued by Hawthorn Bancshares, Inc. announcing its financial results for the year ended December 31, 2021.

99.2Press release, dated January 28, 2022, issued by Hawthorn Bancshares, Inc. announcing cash dividend.

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

2

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: January 28, 2022 Hawthorn Bancshares, Inc. By: /s/ David T. Turner Name: David T. Turner Title: Chairman, CEO & President

3