X0609 4 2026-08-26 0 0000893847 HAWTHORN BANCSHARES, INC. HWBK 0001949215 Hettinger Shawna M. false C/O HAWTHORN BANCSHARES, INC. PO BOX 688 JEFFERSON CITY MO 65102-0688 1 0 0 0 0 Common Stock 2026-08-26 4 P 0 645.161 38.75 A 4769.161 D Common Stock 2026-08-27 4 P 0 654.448 38.20 A 5423.609 D Common Stock 500 D The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions ranging from $38.62 to $38.75 inclusive. The reporting person undertakes to provide to Hawthorn Bancshares, Inc. any security holding of Hawthorn Bancshares, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions ranging from $38.20 to $38.28 inclusive. The reporting person undertakes to provide to Hawthorn Bancshares, Inc. any security holding of Hawthorn Bancshares, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth above. Represents unvested restricted stock units ("RSUs") granted under the Hawthorn Bancshares, Inc. Equity Incentive Plan that can be settled only in shares of Common Stock. The RSUs will fully vest on June 2, 2027. /s/ Arla R. Surls, Attorney-in-Fact, for Shawna M. Hettinger 2026-08-28