X0306 4 2017-09-15 false 0001109546 PACIFIC MERCANTILE BANCORP PMBC 0001666930 Chamberlain Kittridge 949 SOUTH COAST DRIVE THIRD FLOOR COSTA MESA CA 92626 false true false false EVP Chief Banking Officer Common Stock 2017-09-15 4 D false 1232.00 0.00 D 16344.00 D Common Stock 2017-09-15 4 D false 4777.00 0.00 D 11567.00 D These are forfeitures related to the departure of Ms. Chamberlain on September 15, 2017. /s/ Nancy Gray, attorney in fact for KITTRIDGE M CHAMBERLAIN 2017-09-19