X0206 3 2016-06-14 0 0001667161 Randolph Bancorp, Inc. RNDB 0001675900 Dwyer Martie M. C/O RANDOLPH BANCORP, INC. 10 CABOT PLACE STOUGHTON MA 02072 0 1 0 0 See Remarks Common Stock 0 D Senior Vice President, Senior Commercial Loan Officer No securities are beneficially owned /s/ Martie M. Dwyer 2016-06-14