X0306 5 2021-12-31 0 0 0 0001652044 Alphabet Inc. GOOG 0001182057 MULALLY ALAN R C/O ALPHABET INC., 1600 AMPHITHEATRE PKWY MOUNTAIN VIEW CA 94043 1 0 0 0 Class C Capital Stock 3834 D Class C Google Stock Units 32 D Class C Google Stock Units 113 D Class C Google Stock Units 149 D Class C Google Stock Units 120 D Includes 282 shares of Class C Capital Stock issued upon vesting of Class C GSUs during 2021, the grants of which were previously reported on Form 4s. The Class C Google Stock Units (GSU) entitle the Reporting Person to receive one share of Alphabet Inc. Class C Capital Stock for each share underlying the GSU as GSU vest. 1/48th of GSU grant vested on July 25, 2021 and an additional 1/48th of GSUs will vest monthly thereafter, subject to continued service on the Board on the applicable vesting dates. 1/48th of GSU grant vested on July 25, 2019 and an additional 1/48th of GSUs will vest monthly thereafter, subject to continued service on the Board on the applicable vesting dates. 1/48th of GSU grant vested on July 25, 2020 and an additional 1/48th of GSUs will vest monthly thereafter, subject to continued service on the Board on the applicable vesting dates. 1/48th of GSU grant vested on July 25, 2021 and an additional 1/48th of GSUs will vest monthly thereafter, subject to continued service on the Board on the applicable vesting dates. /s/ Valentina Margulis, as Attorney-in-Fact for Alan Mulally 2022-02-11