X0306 4 2021-09-20 false 0001626450 BigCommerce Holdings, Inc. BIGC 0001617333 EGGERTON LISA 11305 FOUR POINTS DRIVE BUILDING II, THIRD FLOOR AUSTIN TX 78726 false true false false Chief Marketing Officer Series 1 Common Stock 2021-09-20 4 M false 2000.00 2.70 A 71294.00 D Series 1 Common Stock 2021-09-20 4 S false 2000.00 55.98 D 69294.00 D Series 1 Common Stock 2021-09-20 4 M false 9365.00 2.70 A 9365.00 I By Ex-Spouse Series 1 Common Stock 2021-09-20 4 S false 3512.00 53.478 D 5853.00 I By Ex-Spouse Series 1 Common Stock 2021-09-20 4 S false 4653.00 54.4922 D 1200.00 I By Ex-Spouse Series 1 Common Stock 2021-09-20 4 S false 1200.00 55.4808 D 0.00 I By Ex-Spouse Non-Qualified Stock Option (Right to Buy) 2.70 2021-09-20 4 M false 2000.00 0.00 D 2018-09-20 2028-09-20 Series 1 Common Stock 2000.00 78334.00 D Non-Qualified Stock Option (Right to Buy) 2.70 2021-09-20 4 M false 9365.00 0.00 D 2018-09-20 2028-09-20 Series 1 Common Stock 9365.00 37819.00 I By Ex-Spouse The stock option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020 and modified on August 18, 2021. Options, which, pursuant to the terms of the Issuers equity incentive plan, are not transferable pursuant to a divorce decree, are held in the name of the reporting person for the benefit of the reporting persons ex-spouse pursuant to a divorce decree. This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person November 30, 2020 and modified on August 18, 2021. The stock option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020. The shares underlying this sale are held in the name of the reporting person for the benefit of the reporting persons ex-spouse pursuant to a divorce decree. 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 $52.95 to $53.9499, 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 6 to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $54.04 to $55.0399, 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 7 to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $55.05 to $56.0499, 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 8 to this Form 4. Option was immediately exercisable on the date of grant. /s /Jeff Mengoli, Attorney-in-Fact for Lisa Eggerton 2021-09-22