X0606 TA-2 2021-12-31 085-05375 0000865956 XXXXXXXX LIVE OLD SECOND BANCORP INC /IL /TA None N Board of Governors of the Federal Reserve System Not applicable 117 872 872 0 288 100.00 0.00 0.00 0.00 0.00 0.00 3 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 4695652.01 0 0.00 0 0.00 0 Yes 0 0 12/31/2021 0 0 0 /s/ Shirley Cantrell 630-906-2303 Shareholder Relations Manager 01/20/2022