X0306 4 2021-05-28 false 0001626450 BigCommerce Holdings, Inc. BIGC 0001819274 Ostryniec Marc 11305 FOUR POINTS DRIVE BUILDING II, THIRD FLOOR AUSTIN TX 78726 false true false false Chief Sales Officer Series 1 Common Stock 2021-05-28 4 S false 5847.00 55.4644 D 66425.00 D Reflects units sold by the reporting person to cover tax withholding obligations in connection with the vesting and settlement of RSUs granted on May 27, 2020. The sale was to satisfy tax withholding obligations to be funded by a mandatory "sell to cover" transaction and does not represent a discretionary transaction by the reporting person. /s /Jeff Mengoli, Attorney-in-Fact for Marc Ostryniec 2021-06-02