X0306 4 2021-08-11 0 0001652044 Alphabet Inc. GOOG 0001295032 Brin Sergey C/O ALPHABET INC. 1600 AMPHITHEATRE PKWY MOUNTAIN VIEW CA 94043 1 0 1 0 Class C Capital Stock 2021-08-11 4 S 0 700 2748.345 D 19075057 D Class C Capital Stock 2021-08-11 4 S 0 300 2749.6003 D 19074757 D Class C Capital Stock 2021-08-11 4 S 0 406 2750.9944 D 19074351 D Class C Capital Stock 2021-08-11 4 S 0 1100 2751.8527 D 19073251 D Class C Capital Stock 2021-08-11 4 S 0 1183 2752.9123 D 19072068 D Class C Capital Stock 2021-08-11 4 S 0 1848 2754.38 D 19070220 D Class C Capital Stock 2021-08-11 4 S 0 1807 2755.5117 D 19068413 D Class C Capital Stock 2021-08-11 4 S 0 1582 2756.2669 D 19066831 D Class C Capital Stock 2021-08-11 4 S 0 1001 2757.4712 D 19065830 D Class C Capital Stock 2021-08-11 4 S 0 762 2758.9117 D 19065068 D Class C Capital Stock 2021-08-11 4 S 0 100 2760.60 D 19064968 D Class C Capital Stock 2021-08-11 4 S 0 100 2762.14 D 19064868 D Class C Capital Stock 2021-08-11 4 S 0 300 2764.2833 D 19064568 D Class C Capital Stock 2021-08-11 4 S 0 300 2766.83 D 19064268 D Class C Capital Stock 2021-08-11 4 S 0 600 2767.9667 D 19063668 D Class C Capital Stock 2021-08-11 4 S 0 300 2769.36 D 19063368 D Class C Capital Stock 2021-08-11 4 S 0 300 2770.665 D 19063068 D Class C Capital Stock 2021-08-11 4 S 0 200 2771.665 D 19062868 D Class C Capital Stock 2021-08-11 4 S 0 200 2773.355 D 19062668 D Class C Capital Stock 2021-08-11 4 S 0 200 2774.965 D 19062468 D Class C Capital Stock 2021-08-11 4 S 0 600 2759.665 D 19061868 D Class B Common Stock 0.00 Class A Common Stock 19001799 19001799 D The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,747.95 to $2,748.94, 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 (19) 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 $2,749.15 to $2,750.14, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,750.29 to $2,751.28, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,751.30 to $2,752.30, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,752.51 to $2,753.50, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,753.97 to $2,754.96, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,754.97 to $2,755.96, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,755.99 to $2,756.98, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,756.99 to $2,757.98, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,758.44 to $2,759.43, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,764.10 to $2,765.09, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,766.20 to $2,767.19, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,767.79 to $2,768.78, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,768.83 to $2,769.82, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,770.14 to $2,771.13, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,771.33 to $2,772.32, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,773.33 to $2,774.32, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,774.67 to $2,775.66, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,759.50 to $2,760.49, inclusive. All shares are exercisable as of transaction date. There is no expiration date for the Issuer's Class B Common Stock. Related transactions effected by the Reporting Person on August 11, 2021 are reported on additional Form 4s. All transactions were effected pursuant to a Rule 10b5-1 Trading Plan adopted by the Reporting Person. /s/ Valentina Margulis as Attorney-in-Fact for Sergey Brin 2021-08-11