PB Bancorp (PBBI) 10-Q 2018 Q2 Quarterly report

EXHIBIT 32.2

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of PB Bancorp, Inc. (the “Company”) on Form 10-Q for the period ended December 31, 2017 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Robert J. Halloran, Jr., Executive Vice President, Chief Financial Officer and Treasurer of the Company, certify, pursuant to 18 U.S.C. Section 1350 that to the best of my knowledge:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods covered by the report.

February 12, 2018

/s/ Robert J. Halloran, Jr.

Robert J. Halloran, Jr.

Executive Vice President, Chief Financial Officer and Treasurer