X0306 4 2017-02-01 0 0001652044 Alphabet Inc. GOOG 0001244892 MATHER ANN C/O ALPHABET INC., 1600 AMPHITHEATRE PKWY MOUNTAIN VIEW CA 94043 1 0 0 0 Class A Common Stock 2017-02-01 4 S 0 4 824.00 D 1668 D Class C Capital Stock 2017-02-01 4 S 0 18 799.86 D 2260 D Class C Google Stock Units 42 D Class C Google Stock Units 215 D Class A Google Stock Units 42 D Class C Google Stock Units 407 D Class C Google Stock Units 431 D 1/48th of the grant vested on July 25, 2013 and an additional 1/48th will vest monthly on the 25th day of each month thereafter, subject to continued service on the Board on the applicable vesting dates. 1/48th of the grant vested on June 25, 2014 and an additional 1/48th will vest on the 25th day of each month thereafter, subject to continued service on the Board on such vesting dates. 1/48th of the grant vested on July 25, 2013 and an additional 1/48th will vest monthly on the 25th day of each month thereafter, subject to continued service on the Board on the applicable vesting dates. 1/48th of GSUs vested on July 25, 2015 and an additional 1/48th of GSUs will vest monthly thereafter until the GSUs are fully vested, subject to continued service on such vesting dates. 1/48th of GSUs vested on July 25, 2016 and an additional 1/48th of GSUs will vest monthly thereafter until the GSUs are fully vested, subject to continued service on such vesting dates. All transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Trading Plan adopted by the Reporting Person. /s/ Valentina Margulis as Attorney-in-Fact for Ann Mather 2017-02-01