X0306 4 2020-08-07 0 0001626450 BigCommerce Holdings, Inc. BIGC 0001135369 BOHN LAWRENCE S C/O GENERAL CATALYST PARTNERS 20 UNIVERSITY ROAD 4TH FLOOR CAMBRIDGE MA 02138 1 0 0 0 Series 1 Common Stock 2020-08-07 4 C 0 3628722 A 3628722 I By General Catalyst Group IV, LP Series 1 Common Stock 2020-08-07 4 C 0 96279 A 96279 I By GC Entrepreneurs Fund IV, L.P. Series 1 Common Stock 2020-08-07 4 C 0 1951156 A 1951156 I By General Catalyst Group V, L.P. Series 1 Common Stock 2020-08-07 4 C 0 117331 A 117331 I By GC Entrepreneurs Fund V, L.P. Series 1 Common Stock 2020-08-07 4 C 0 3669890 A 3669890 I By General Catalyst Group V Supplemental, L.P. Series A Preferred Stock 2020-08-07 4 C 0 10886166 D Series 1 Common Stock 3628722 0 I By General Catalyst Group IV, LP Series A Preferred Stock 2020-08-07 4 C 0 288838 D Series 1 Common Stock 96279 0 I By GC Entrepreneurs Fund IV, L.P. Series A Preferred Stock 2020-08-07 4 C 0 3648838 D Series 1 Common Stock 1216279 0 I By General Catalyst Group V, L.P. Series B Preferred Stock 2020-08-07 4 C 0 1831316 D Series 1 Common Stock 610438 0 I By General Catalyst Group V, L.P. Series D Preferred Stock 2020-08-07 4 C 0 182448 D Series 1 Common Stock 64165 0 I By General Catalyst Group V, L.P. Series F Preferred Stock 2020-08-07 4 C 0 180823 D Series 1 Common Stock 60274 0 I By General Catalyst Group V, L.P. Series A Preferred Stock 2020-08-07 4 C 0 76164 D Series 1 Common Stock 25388 0 I By GC Entrepreneurs Fund V, L.P. Series B Preferred Stock 2020-08-07 4 C 0 214973 D Series 1 Common Stock 71657 0 I By GC Entrepreneurs Fund V, L.P. Series D Preferred Stock 2020-08-07 4 C 0 16251 D Series 1 Common Stock 5715 0 I By GC Entrepreneurs Fund V, L.P. Series E Preferred Stock 2020-08-07 4 C 0 39939 D Series 1 Common Stock 13313 0 I By GC Entrepreneurs Fund V, L.P. Series F Preferred Stock 2020-08-07 4 C 0 3774 D Series 1 Common Stock 1258 0 I By GC Entrepreneurs Fund V, L.P. Series B Preferred Stock 2020-08-07 4 C 0 8467400 D Series 1 Common Stock 2822466 0 I By General Catalyst Group V Supplemental, L.P. Series D Preferred Stock 2020-08-07 4 C 0 596098 D Series 1 Common Stock 209642 0 I By General Catalyst Group V Supplemental, L.P. Series E Preferred Stock 2020-08-07 4 C 0 1913347 D Series 1 Common Stock 637782 0 I By General Catalyst Group V Supplemental, L.P. Each share of Series A Preferred Stock, Series B Preferred Stock, Series D Preferred Stock, Series E Preferred Stock, and Series F Preferred Stock (a) automatically converted into shares of the Issuer's Series 1 Common Stock at the applicable conversion ratio set forth in the Issuer's certificate of incorporation immediately prior to the completion of the Issuer's initial public offering of Series 1 Common Stock and (b) had no expiration date The reported securities are held directly by General Catalyst Group IV, L.P. General Catalyst GP IV, LLC is the general partner of General Catalyst Partners IV, L.P., which is the general partner of General Catalyst Group IV, L.P. and GC Entrepreneurs Fund IV, L.P. The Reporting Person is a managing director of General Catalyst GP IV, LLC, and, as a result, may be deemed to have voting and dispositive power over the shares held by General Catalyst Group IV, L.P. and GC Entrepreneurs Fund IV, L.P. The Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest in such securities. The reported securities are held directly by GC Entrepreneurs Fund IV, L.P. General Catalyst GP IV, LLC is the general partner of General Catalyst Partners IV, L.P., which is the general partner of General Catalyst Group IV, L.P. and GC Entrepreneurs Fund IV, L.P. The Reporting Person is a managing director of General Catalyst GP IV, LLC, and, as a result, may be deemed to have voting and dispositive power over the shares held by General Catalyst Group IV, L.P. and GC Entrepreneurs Fund IV, L.P. The Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest in such securities. The reported securities are held directly by General Catalyst Group V, L.P. General Catalyst GP V, LLC is the general partner of General Catalyst Partners V, L.P., which is the general partner of General Catalyst Group V, L.P., GC Entrepreneurs Fund V, L.P. and General Catalyst Group V Supplemental, L.P. The Reporting Person is a managing director of General Catalyst GP V, LLC, and, as a result, may be deemed to have voting and dispositive power over the shares held by General Catalyst Group V, L.P., GC Entrepreneurs Fund V, L.P., and General Catalyst Group V Supplemental, L.P. GCGM Investment Holdings, L.P. is a limited partner of General Catalyst Partners V, L.P. with a pecuniary interest in the reported securities. (Continued from Footnote 4) GC Partners Holdings, L.P. is a limited partner of GCGM Investment Holdings, L.P. with a pecuniary interest in the reported securities. The Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest in such securities. The reported securities are held directly by GC Entrepreneurs Fund V, L.P. General Catalyst GP V, LLC is the general partner of General Catalyst Partners V, L.P., which is the general partner of General Catalyst Group V, L.P., GC Entrepreneurs Fund V, L.P. and General Catalyst Group V Supplemental, L.P. The Reporting Person is a managing director of General Catalyst GP V, LLC, and, as a result, may be deemed to have voting and dispositive power over the shares held by General Catalyst Group V, L.P., GC Entrepreneurs Fund V, L.P., and General Catalyst Group V Supplemental, L.P. GCGM Investment Holdings, L.P. is a limited partner of General Catalyst Partners V, L.P. with a pecuniary interest in the reported securities. (Continued from Footnote 6) GC Partners Holdings, L.P. is a limited partner of GCGM Investment Holdings, L.P. with a pecuniary interest in the reported securities. The Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest in such securities. The reported securities are held directly by General Catalyst Group V Supplemental, L.P. General Catalyst GP V, LLC is the general partner of General Catalyst Partners V, L.P., which is the general partner of General Catalyst Group V, L.P., GC Entrepreneurs Fund V, L.P. and General Catalyst Group V Supplemental, L.P. The Reporting Person is a managing director of General Catalyst GP V, LLC, and, as a result, may be deemed to have voting and dispositive power over the shares held by General Catalyst Group V, L.P., GC Entrepreneurs Fund V, L.P., and General Catalyst Group V Supplemental, L.P. GCGM Investment Holdings, L.P. is a limited partner of General Catalyst Partners V, L.P. with a pecuniary interest in the reported securities. (Continued from Footnote 8) GC Partners Holdings, L.P. is a limited partner of GCGM Investment Holdings, L.P. with a pecuniary interest in the reported securities. The Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest in such securities. /s/ Jeff Mengoli as Attorney-in-Fact for Lawrence S. Bohn 2020-08-11