X0306 4 2017-06-19 0001303942 BankFinancial CORP BFIN 0001382541 Manos John G 15W060 NORTH FRONTAGE ROAD BURR RIDGE IL 60527 1 President - Affiliate Common Stock 2017-06-19 4 I 0 5004.678 14.9571 D 15961.7151 I By 401(k) Common Stock 2017-06-20 4 I 0 2509.1816 14.8671 D 13452.5335 I By 401(k) Common Stock 14572.843 D Common Stock 17573.8914 I By Employee Stock Ownership Plan The information in this report is based on the 401(k) report dated June 21, 2017. Reflects ESOP allocations that occurred as of December 31, 2016. /s/ F. Morgan Gasior, pursuant to power of attorney 2017-06-21