X0508 4 2026-01-15 0 0001412665 MidWestOne Financial Group, Inc. MOFG 0001632460 Ray Barry S 102 S. CLINTON STREET P.O. BOX 1700 IOWA CITY IA 52244-1700 0 1 0 0 Senior EVP, CFO and Treasurer 0 Common Stock 2026-01-15 4 A 0 2663 0 A 25925.443 D Common Stock 1866.121 I By 401(k) Represents restricted stock units acquired pursuant to a grant of time-based restricted stock units which vest on January 15, 2027, or on the legal close date of the merger announced October 23, 2025, of MidWestOne Financial Group, Inc. with and into Nicolet Bankshares, Inc., with Nicolet Bankshares, Inc. as the surviving corporation, whichever comes first. Includes 26.617 Dividend Equivalents credited to unvested time-based RSUs in lieu of a cash dividend payment since the reporting person's last required Form filing. Each whole Dividend Equivalent is the economic equivalent of one share of MidWestOne Financial Group, Inc. common stock. Shares held in the reporting person's account from within the MidWestOne Financial Group, Inc.. 401(k) Plan, as of December 31, 2025. Reported shares have increased by 286.701 shares since the date of the reporting person's previous Form filing due to allocations to his account. The MidWestOne Financial Group, Inc. Employee Stock Ownership Plan (formerly the "ESOP") was merged into the MidWestOne Financial Group, Inc. 401(k) Plan (the "401(k)") on May 7, 2025. Shares from the reporting person's ESOP account were merged into the reporting person's account in the 401(k). Kenneth R. Urmie, Deputy Corporate Secretary, for Barry S. Ray under Power of Attorney dated April 21, 2023 2026-01-16