X0202 4 2005-12-27 0 0000799166 MASSBANK CORP MASB 0001235354 BUFFERD ALLAN S C/O MASSBANK CORP 123 HAVEN STREET READING MA 01867 1 0 0 0 common stock 2005-12-27 4 J 0 1500 15.50 A 2100 D Option (right to buy) 15.50 2005-12-27 4 J 0 1500 15.50 D 1996-01-16 2006-01-15 common 1500 0 D Exercise of stock option granted under the MASSBANK Corp. Stock Option & Incentive Plan Allan S. Bufferd 2005-12-31