X0306 4 2021-11-16 false 0001626450 BigCommerce Holdings, Inc. BIGC 0001578466 Aylor Thomas C/O BIGCOMMERCE HOLDINGS, INC. 11305 FOUR POINTS DR, BLDG II 3RD FLOOR AUSTIN TX 78726 false true false false VP - Prin. Accounting Officer Series 1 Common Stock 2021-11-16 4 M false 12000.00 17.34 A 15530.00 D Series 1 Common Stock 2021-11-16 4 S false 12000.00 56.87 D 3530.00 D Non-Qualified Stock Option (Right to Buy) 17.34 2021-11-16 4 M false 12000.00 0.00 D 2021-07-13 2030-07-23 Series 1 Common Stock 12000.00 30899.00 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $56.69 to $57.07, inclusive. The reporting person undertakes to provide to BigCommerce Holdings, Inc., any security holder of BigCommerce Holdings, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price with the ranges set forth in Footnote 1 to this Form 4. 1/4 of the option shares became exercisable on July 13, 2021, with an additional 1/48 of the option shares becoming exercisable every month thereafter. /s /Jeff Mengoli, Attorney-in-Fact for Thomas Aylor 2021-11-18