X0206 3 2020-08-04 0 0001626450 BigCommerce Holdings, Inc. BIGC 0001094792 MCDONALD JOHN T C/O BIGCOMMERCE HOLDINGS, INC. 11305 FOUR POINTS DR, BLDG II, 3RD FLOOR AUSTIN TX 78726 1 0 0 0 Non-Qualified Stock Option (Right to Buy) 3.24 2019-08-22 2029-08-22 Series 1 Common Stock 73333 D Option was immediately exercisable on the date of grant. /s/ Jeff Mengoli as Attorney-in-Fact for John T. McDonald 2020-08-04