For the quarterly period ended December 31, 2018 OR ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Commission File No. 001-35226 IF Bancorp, Inc. (Exact name of registrant as specified in its charter) Washington, D.C. 20549 FORM 10-Q ☒ Quarterly Report Pursuant To Section 13 or 15(d) of the Securities Exchange Act of 1934 SECURITIES AND EXCHANGE COMMISSION (State or other jurisdiction of incorporation or organization) 201 East Che ...