X0306 4/A 2021-05-20 2021-05-21 0 0001127537 Pulmonx Corp LUNG 0001805624 French Glendon E. III C/O PULMONX CORPORATION 700 CHESAPEAKE DRIVE REDWOOD CITY CA 94063 1 1 0 0 President and CEO Common Stock 2021-05-20 4 M 0 10000 2.20 A 1259884 D Common Stock 2021-05-20 4 S 0 5059 41.01 D 1254825 D Common Stock 2021-05-20 4 S 0 19941 42.19 D 1234884 D Stock Option (Right to Buy) 2.20 2021-05-20 4 M 0 10000 0.00 D 2030-08-27 Common Stock 10000 174999 D The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 14, 2020. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $40.71 to $41.25, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, 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 range. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $41.85 to $42.70, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, 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 range. The shares subject to the option are immediately exercisable and vest in 48 equal monthly installments beginning on August 28, 2020, subject to the Reporting Person's continuous service through each such vesting date. This amendment is filed to correct the inadvertent omission of the option exercise transaction and the amount of securities beneficially owned following the reported transactions in columns 9 and 5 of each of the reported row in Table II and Table I, respectively. The error in columns 9 and 5 also appears in subsequent Forms 4 filed through November 22, 2021. /s/ Lauren Cristina, Attorney-in-Fact for Glendon E. French 2021-12-03