X0306 4 2022-03-09 0 0001652044 Alphabet Inc. GOOG 0001295032 Sergey Brin C/O ALPHABET INC. 1600 AMPHITHEATRE PKWY MOUNTAIN VIEW CA 94043 1 0 1 0 Class A Common Stock 2022-03-09 4 S 0 100 2646.97 D 5720 D Class A Common Stock 2022-03-09 4 S 0 200 2653.00 D 5520 D Class A Common Stock 2022-03-09 4 S 0 100 2653.70 D 5420 D Class A Common Stock 2022-03-09 4 S 0 100 2655.23 D 5320 D Class A Common Stock 2022-03-09 4 S 0 300 2656.84 D 5020 D Class A Common Stock 2022-03-09 4 S 0 107 2658.0358 D 4913 D Class A Common Stock 2022-03-09 4 S 0 300 2659.01 D 4613 D Class A Common Stock 2022-03-09 4 S 0 500 2660.232 D 4113 D Class A Common Stock 2022-03-09 4 S 0 300 2661.1167 D 3813 D Class A Common Stock 2022-03-09 4 S 0 500 2662.784 D 3313 D Class A Common Stock 2022-03-09 4 S 0 600 2664.265 D 2713 D Class A Common Stock 2022-03-09 4 S 0 520 2665.6229 D 2193 D Class A Common Stock 2022-03-09 4 S 0 500 2666.478 D 1693 D Class A Common Stock 2022-03-09 4 S 0 593 2667.9961 D 1100 D Class A Common Stock 2022-03-09 4 S 0 300 2669.11 D 800 D Class A Common Stock 2022-03-09 4 S 0 300 2670.55 D 500 D Class A Common Stock 2022-03-09 4 S 0 300 2671.5667 D 200 D Class A Common Stock 2022-03-09 4 S 0 200 2673.32 D 0 D Class B Common Stock 0.00 Class A Common Stock 8635 8635 I SMB Pacific 2021 Charitable Remainder Unitrust II Class B Common Stock 0.00 Class A Common Stock 8635 8635 I SMB Pacific 2021 Charitable Remainder Unitrust I Class B Common Stock 0.00 Class A Common Stock 18551362 18551362 D Each share of Class A Common Stock was issued upon the conversion of one share of Class B Common Stock at the election of Reporting Person. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,653.39 to $2,654.38, inclusive. The Reporting Person undertakes to provide to any security holder of Alphabet Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (2) through (16) to this Form 4. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,656.33 to $2,657.32, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,657.69 to $2,658.68, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,658.90 to $2,659.89, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,659.94 to $2,660.93, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,661.04 to $2,662.03, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,663.38 to $2,664.37, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,663.72 to $2,664.71, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,665.14 to $2,666.13, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,666.15 to $2,667.14, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,667.67 to $2,668.66, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,668.79 to $2,669.78, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,670.07 to $2,671.06, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,671.43 to $2,672.42, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,673.08 to $2,674.07, inclusive. All shares are exercisable as of the transaction date. There is no expiration date for the Issuer's Class B Common Stock. All transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 Trading Plan adopted by the Reporting Person. Related transactions effected by the Reporting Person on March 9, 2022 are reported on additional Form 4. /s/ Valentina Margulis, as Attorney-in-Fact for Sergey Brin 2022-03-11