X0306 4 2021-04-09 false 0001626450 BigCommerce Holdings, Inc. BIGC 0001819287 Duvall Jimmy C/O BIGCOMMERCE HOLDINGS, INC. 11305 FOUR POINTS DR, BLDG II 3RD FLOOR AUSTIN TX 78726 false true false false Chief Product Officer Series 1 Common Stock 2021-04-09 4 M false 5000.00 0.39 A 104415.00 D Series 1 Common Stock 2021-04-09 4 S false 5000.00 57.51 D 99415.00 D Series 1 Common Stock 7000.00 I By Ex-Spouse Incentive Stock Option (Right to Buy) 0.39 2021-04-09 4 M false 5000.00 0.00 D 2017-11-07 2026-11-07 Series 1 Common Stock 5000.00 75009.00 D The stock option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020. This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $57.17 to $58.11, 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 2 to this Form 4. Includes 79,415 Restricted Stock Units which are subject to forfeiture until they vest. The shares were acquired pursuant to a previous option exercise at the direction of, and are held for the benefit of, the insider's former spouse pursuant to a divorce decree. The reporting person disclaims beneficial ownership of these shares. 1/4 of the option shares became exercisable on 11/07/2017, with an additional 1/48 of the option shares becoming exercisable every month thereafter. /s /Jeff Mengoli, Attorney-in-Fact for Jimmy Duvall 2021-04-13