Material Event Form 8 K

Item 8.01 Other Events

Old Second Bancorp, Inc. (the "Company", "we," "us" and "our") will release financial results for the third quarter of 2024 after the market closes on October 16, 2024.

​

We will also host an earnings call on Thursday, October 17, 2024 at 10:00 a.m. Eastern Time (9:00 a.m. Central Time). Investors may listen to our earnings call via telephone by dialing 888-506-0062, using Entry Code: 232873. Investors should call into the dial-in number set forth above at least 10 minutes prior to the scheduled start of the call.

​

A replay of the earnings call will be available until 10:00 a.m. Eastern Time (9:00 a.m. Central Time) October 24, 2024, by dialing 877-481-4010, using Replay PIN: 51325.

​

​