X0306 4 2021-03-08 0 0001652044 Alphabet Inc. GOOG 0001198046 HENNESSY JOHN L C/O ALPHABET INC. 1600 AMPHITHEATRE PKWY MOUNTAIN VIEW CA 94043 1 0 0 0 Class C Capital Stock 2021-03-08 4 S 0 4 2041.26 D 537 I By Trust Class C Capital Stock 2021-03-08 4 S 0 1 2042.49 D 536 I By Trust Class C Capital Stock 2021-03-08 4 S 0 2 2050.12 D 534 I By Trust Class C Capital Stock 2021-03-08 4 S 0 5 2054.168 D 529 I By Trust Class C Capital Stock 2021-03-08 4 S 0 3 2055.7067 D 526 I By Trust Class C Capital Stock 2021-03-08 4 S 0 2 2056.76 D 524 I By Trust Class C Capital Stock 2021-03-08 4 S 0 1 2064.26 D 523 I By Trust Class C Capital Stock 2021-03-08 4 S 0 1 2067.28 D 522 I By Trust Class C Capital Stock 2021-03-08 4 S 0 2 2070.37 D 520 I By Trust Class C Capital Stock 2021-03-08 4 S 0 2 2073.01 D 518 I By Trust Class C Capital Stock 2021-03-08 4 S 0 7 2075.9229 D 511 I By Trust Class C Capital Stock 2021-03-08 4 S 0 5 2081.51 D 506 I By Trust Class C Capital Stock 2021-03-08 4 S 0 3 2082.57 D 503 I By Trust Class C Capital Stock 2021-03-08 4 S 0 3 2083.51 D 500 I By Trust Class C Capital Stock 2021-03-08 4 S 0 2 2092.87 D 498 I By Trust Class C Capital Stock 2021-03-08 4 S 0 2 2094.82 D 496 I By Trust Class C Capital Stock 2021-03-08 4 S 0 3 2096.42 D 493 I By Trust Class C Capital Stock 2021-03-08 4 S 0 6 2100.79 D 487 I By Trust Class C Capital Stock 2021-03-08 4 S 0 2 2104.91 D 485 I By Trust Class C Capital Stock 2021-03-08 4 S 0 2 2108.785 D 483 I By Trust Class C Capital Stock 2021-03-08 4 S 0 4 2114.71 D 479 I By Trust Class C Capital Stock 2021-03-08 4 S 0 2 2119.67 D 477 I By Trust Class C Capital Stock 2021-03-08 4 S 0 4 2121.405 D 473 I By Trust Class C Capital Stock 2021-03-08 4 S 0 2 2123.24 D 471 I By Trust Class C Google Stock Units 33 D Class C Google Stock Units 117 D Class C Google Stock Units 263 D Class C Google Stock Units 292 D Class A Common Stock 3243 I By Trust The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,041.15 to $2,041.70, 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 (11) 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 $2,054.08 to $2,054.12, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,055.08 to $2,055.89, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,075.77 to $2,076.76, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,081.35 to $2,081.68, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,082.19 to $2,082.96, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,083.27 to $2,083.99, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,096.12 to $2,097.02, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,100.38 to $2,101.00, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,108.60 to $2,108.97, inclusive. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $2,120.92 to $2,121.89, inclusive. 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, 2017 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, 2018 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 GSUs 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 GSUs 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. 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 John L. Hennessy 2021-03-09