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 C Capital Stock 2022-03-09 4 S 0 200 2663.245 D 18617059 D Class C Capital Stock 2022-03-09 4 S 0 300 2665.4367 D 18616759 D Class C Capital Stock 2022-03-09 4 S 0 300 2666.7367 D 18616459 D Class C Capital Stock 2022-03-09 4 S 0 300 2667.93 D 18616159 D Class C Capital Stock 2022-03-09 4 S 0 507 2669.3453 D 18615652 D Class C Capital Stock 2022-03-09 4 S 0 500 2670.534 D 18615152 D Class C Capital Stock 2022-03-09 4 S 0 300 2671.7067 D 18614852 D Class C Capital Stock 2022-03-09 4 S 0 597 2672.8562 D 18614255 D Class C Capital Stock 2022-03-09 4 S 0 600 2673.7567 D 18613655 D Class C Capital Stock 2022-03-09 4 S 0 471 2674.7912 D 18613184 D Class C Capital Stock 2022-03-09 4 S 0 500 2676.60 D 18612684 D Class C Capital Stock 2022-03-09 4 S 0 200 2677.395 D 18612484 D Class C Capital Stock 2022-03-09 4 S 0 353 2678.5476 D 18612131 D Class C Capital Stock 2022-03-09 4 S 0 600 2679.90 D 18611531 D Class C Capital Stock 2022-03-09 4 S 0 100 2680.49 D 18611431 D Class C Capital Stock 8635 I SMB Pacific 2021 Charitable Remainder Unitrust I Class C Capital Stock 8635 I SMB Pacific 2021 Charitable Remainder Unitrust II The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,662.84 to $2,663.83, 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 (1) through (14) 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 $2,665.00 to $2,665.99, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,666.41 to $2,667.40, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,667.61 to $2,668.60, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,669.05 to $2,670.04, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,670.14 to $2,671.13, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,671.37 to $2,672.36, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,672.37 to $2,673.36, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,673.38 to $2,674.37, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,674.46 to $2,675.45, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,676.08 to $2,677.07, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,677.09 to $2,678.08, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,678.13 to $2,679.12, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,679.33 to $2,680.32, inclusive. 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