PB Bancorp, Inc. Contracts & Agreements

Form of Voting Agreement (Filed With SEC on October 23, 2019)

Agreement and Plan of Merger among Centreville Bank, PB Bancorp, Inc. and Putnam Bank dated as of October 22, 2019 (Filed With SEC on October 23, 2019)

Change in Control Agreement by and between PB Bancorp, Inc., Putnam Bank and Thomas A. Borner (Filed With SEC on February 12, 2019)

Change in Control Agreement by and between PB Bancorp, Inc., Putnam Bank and Robert J. Halloran, Jr (Filed With SEC on February 12, 2019)

PUTNAM BANK Putnam, Connecticut SENIOR MANAGEMENTSHORT TERM INCENTIVE PLAN (Filed With SEC on June 23, 2017)

INCENTIVE STOCK OPTION AWARD AGREEMENT StockOption Granted by PBBANCORP, INC. under the PB BANCORP, INC. 2017 EQUITY INCENTIVE PLAN (Filed With SEC on April 4, 2017)

NON-QUALIFIED STOCK OPTION AWARD AGREEMENT StockOption Granted by PBBANCORP, INC. under the PB BANCORP, INC. 2017 EQUITY INCENTIVE PLAN (Filed With SEC on April 4, 2017)

RestrictedStock Award Granted by PBBANCORP, INC. under the PB BANCORP, INC. 2017 EQUITY INCENTIVE PLAN (Filed With SEC on April 4, 2017)

PB BANCORP, INC. (a Maryland corporation) Up to 3,953,125 Shares (Subject to increase to up to 4,546,094 shares) COMMON STOCK ($0.01 Par Value) Offering Price $8.00 Per Share... (Filed With SEC on November 17, 2015)

PB BANCORP, INC. (a Maryland corporation) Up to 3,953,125 Shares (Subject to increase to up to 4,546,094shares) COMMON STOCK ($0.01 Par Value) Offering Price $8.00 Per Share... (Filed With SEC on October 30, 2015)

Keefe, Bruyette & Woods • 70 WestMadison, Suite 2401 • Chicago, IL 60602 ###-###-#### • 800 ###-###-#### •Fax ###-###-#### • www.kbw.com (Filed With SEC on September 11, 2015)

PB BANCORP, INC. (a Maryland corporation) Up to 3,953,125 Shares (Subject to increase to up to 4,546,094shares) COMMON STOCK ($0.01 Par Value) Offering Price $8.00 Per Share... (Filed With SEC on September 11, 2015)

PUTNAM BANK EMPLOYEE STOCK OWNERSHIP PLAN (Filed With SEC on September 11, 2015)