CMRC

SEC source: 0001562180-21-006024 · primarydocument.xml · nonDerivative · entry 2

Alvarez Robert · CIK 0001819281 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Robert and Jackie Alvarez Revocable Trust

Disclosed balance after: 29,240

F1 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $56.91 to $57.9099, 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.

SEC source: 0001562180-21-006024 · primarydocument.xml · nonDerivative · entry 1

Alvarez Robert · CIK 0001819281 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Robert and Jackie Alvarez Revocable Trust

Disclosed balance after: 37,543

F1 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $55.89 to $56.8899, 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.

SEC source: 0001562180-21-006023 · primarydocument.xml · derivative · entry 5

Dhatt Brian Singh · CIK 0001602034 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,333

Underlying: Series 1 Common Stock · 10,000 shares

Expires 2029-02-27

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The stock option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F6 · derivative.exercise_date: Option was immediately exercisable on the date of grant.

SEC source: 0001562180-21-006023 · primarydocument.xml · nonDerivative · entry 4

Dhatt Brian Singh · CIK 0001602034 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 79,009

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $57.93 to $58.9299, 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 5 to this Form 4.

SEC source: 0001562180-21-006023 · primarydocument.xml · nonDerivative · entry 3

Dhatt Brian Singh · CIK 0001602034 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 80,009

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $56.92 to $57.9199, 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 4 to this Form 4.

SEC source: 0001562180-21-006023 · primarydocument.xml · nonDerivative · entry 2

Dhatt Brian Singh · CIK 0001602034 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 85,887

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $55.89 to $56.8899, 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 3 to this Form 4.

SEC source: 0001562180-21-006023 · primarydocument.xml · nonDerivative · entry 1

Dhatt Brian Singh · CIK 0001602034 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 89,009

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The stock option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

SEC source: 0001562180-21-006022 · primarydocument.xml · derivative · entry 5

Mengoli Jeff · CIK 0001819282 · Chief Legal Officer/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,000

Underlying: Series 1 Common Stock · 6,000 shares

Expires 2028-11-30

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The stock option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F5 · derivative.exercise_date: Option was immediately exercisable on the date of grant.

SEC source: 0001562180-21-006022 · primarydocument.xml · nonDerivative · entry 4

Mengoli Jeff · CIK 0001819282 · Chief Legal Officer/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 122,409

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

SEC source: 0001562180-21-006022 · primarydocument.xml · nonDerivative · entry 3

Mengoli Jeff · CIK 0001819282 · Chief Legal Officer/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 122,609

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $57.05 to $58.0499, 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 3 to this Form 4.

SEC source: 0001562180-21-006022 · primarydocument.xml · nonDerivative · entry 2

Mengoli Jeff · CIK 0001819282 · Chief Legal Officer/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 126,008

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $56.05 to $57.0499, 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 2 to this Form 4.

SEC source: 0001562180-21-006022 · primarydocument.xml · nonDerivative · entry 1

Mengoli Jeff · CIK 0001819282 · Chief Legal Officer/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 128,409

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The stock option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

SEC source: 0001562180-21-005968 · primarydocument.xml · derivative · entry 3

Mengoli Jeff · CIK 0001819282 · Chief Legal Officer/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 57,000

Underlying: Series 1 Common Stock · 2,000 shares

Expires 2028-11-30

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The stock option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 10, 2021.

F3 · derivative.exercise_date: Option was immediately exercisable on the date of grant.

SEC source: 0001562180-21-005968 · primarydocument.xml · nonDerivative · entry 2

Mengoli Jeff · CIK 0001819282 · Chief Legal Officer/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 122,409

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 10, 2021.

SEC source: 0001562180-21-005968 · primarydocument.xml · nonDerivative · entry 1

Mengoli Jeff · CIK 0001819282 · Chief Legal Officer/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 124,409

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The stock option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 10, 2021.

SEC source: 0001562180-21-005634 · primarydocument.xml · nonDerivative · entry 2

Siminoff Ellen F · CIK 0001386430 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By The D & E Living Trust

Disclosed balance after: 58,333

F1 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $57.98 to $58.9799, 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 3 to this Form 4.

SEC source: 0001562180-21-005634 · primarydocument.xml · nonDerivative · entry 1

Siminoff Ellen F · CIK 0001386430 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By The D & E Living Trust

Disclosed balance after: 58,739

F1 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $56.97 to $57.9699, 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.

SEC source: 0001562180-21-005525 · primarydocument.xml · derivative · entry 6

Alvarez Robert · CIK 0001819281 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 84,743

Underlying: Series 1 Common Stock · 20,000 shares

Expires 2022-06-22

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The stock option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

SEC source: 0001562180-21-005525 · primarydocument.xml · nonDerivative · entry 3

Alvarez Robert · CIK 0001819281 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 116,310

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $54.32 to $55.3199, 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 4 to this Form 4.

SEC source: 0001562180-21-005525 · primarydocument.xml · nonDerivative · entry 2

Alvarez Robert · CIK 0001819281 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 126,088

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $53.32 to $54.3199, 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 3 to this Form 4.

SEC source: 0001562180-21-005525 · primarydocument.xml · nonDerivative · entry 1

Alvarez Robert · CIK 0001819281 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 136,310

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The stock option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

SEC source: 0001562180-21-005503 · primarydocument.xml · derivative · entry 5

EGGERTON LISA · CIK 0001617333 · Chief Marketing Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 80,334

Underlying: Series 1 Common Stock · 2,000 shares

Expires 2028-09-20

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The stock option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F6 · derivative.exercise_date: Option was immediately exercisable on the date of grant.

SEC source: 0001562180-21-005503 · primarydocument.xml · nonDerivative · entry 4

EGGERTON LISA · CIK 0001617333 · Chief Marketing Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 69,294

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $56.71 to $57.7099, 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 5 to this Form 4.

SEC source: 0001562180-21-005503 · primarydocument.xml · nonDerivative · entry 3

EGGERTON LISA · CIK 0001617333 · Chief Marketing Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 69,494

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $55.60 to $56.5999, 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 4 to this Form 4.

SEC source: 0001562180-21-005503 · primarydocument.xml · nonDerivative · entry 2

EGGERTON LISA · CIK 0001617333 · Chief Marketing Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 70,732

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $54.45 to $55.4499, 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 3 to this Form 4.

SEC source: 0001562180-21-005503 · primarydocument.xml · nonDerivative · entry 1

EGGERTON LISA · CIK 0001617333 · Chief Marketing Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 71,294

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The stock option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

SEC source: 0001562180-21-005436 · primarydocument.xml · derivative · entry 6

Ostryniec Marc · CIK 0001819274 · Chief Sales Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 185,896

Underlying: Series 1 Common Stock · 10,000 shares

Expires 2028-12-31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The stock option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F7 · derivative.exercise_date: Option was immediately exercisable on the date of grant.

SEC source: 0001562180-21-005436 · primarydocument.xml · nonDerivative · entry 5

Ostryniec Marc · CIK 0001819274 · Chief Sales Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 58,157

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $62.27 to $63.2699, 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.

SEC source: 0001562180-21-005436 · primarydocument.xml · nonDerivative · entry 4

Ostryniec Marc · CIK 0001819274 · Chief Sales Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 58,566

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $61.26 to $62.2599, 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 5 to this Form 4.

SEC source: 0001562180-21-005436 · primarydocument.xml · nonDerivative · entry 3

Ostryniec Marc · CIK 0001819274 · Chief Sales Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 59,666

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $60.25 to $61.2499, 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 4 to this Form 4.

SEC source: 0001562180-21-005436 · primarydocument.xml · nonDerivative · entry 2

Ostryniec Marc · CIK 0001819274 · Chief Sales Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 62,156

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.00 to $59.9999, 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 3 to this Form 4.

SEC source: 0001562180-21-005436 · primarydocument.xml · nonDerivative · entry 1

Ostryniec Marc · CIK 0001819274 · Chief Sales Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 68,157

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The stock option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

SEC source: 0001562180-21-005435 · primarydocument.xml · derivative · entry 11

Mengoli Jeff · CIK 0001819282 · Chief Legal Officer/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 59,000

Underlying: Series 1 Common Stock · 2,000 shares

Expires 2028-11-30

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: The stock option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 10, 2021.

F12 · derivative.exercise_date: Option was immediately exercisable on the date of grant.

SEC source: 0001562180-21-005435 · primarydocument.xml · derivative · entry 10

Mengoli Jeff · CIK 0001819282 · Chief Legal Officer/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 61,000

Underlying: Series 1 Common Stock · 3,000 shares

Expires 2028-11-30

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The stock option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F12 · derivative.exercise_date: Option was immediately exercisable on the date of grant.

SEC source: 0001562180-21-005435 · primarydocument.xml · nonDerivative · entry 9

Mengoli Jeff · CIK 0001819282 · Chief Legal Officer/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 122,409

F8 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 10, 2021.

F11 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $62.02 to $63.0199, 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 11 to this Form 4.

SEC source: 0001562180-21-005435 · primarydocument.xml · nonDerivative · entry 8

Mengoli Jeff · CIK 0001819282 · Chief Legal Officer/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 122,709

F8 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 10, 2021.

F10 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $60.77 to $61.7699, 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 10 to this Form 4.

SEC source: 0001562180-21-005435 · primarydocument.xml · nonDerivative · entry 7

Mengoli Jeff · CIK 0001819282 · Chief Legal Officer/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 123,215

F8 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 10, 2021.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $58.68 to $59.6799, 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 9 to this Form 4.

SEC source: 0001562180-21-005435 · primarydocument.xml · nonDerivative · entry 6

Mengoli Jeff · CIK 0001819282 · Chief Legal Officer/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 124,409

F3 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $62.03 to $63.0299, 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.

SEC source: 0001562180-21-005435 · primarydocument.xml · nonDerivative · entry 5

Mengoli Jeff · CIK 0001819282 · Chief Legal Officer/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 124,709

F3 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $60.77 to $61.7699, 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.

SEC source: 0001562180-21-005435 · primarydocument.xml · nonDerivative · entry 4

Mengoli Jeff · CIK 0001819282 · Chief Legal Officer/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 125,512

F3 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.75 to $60.7499, 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 5 to this Form 4.

SEC source: 0001562180-21-005435 · primarydocument.xml · nonDerivative · entry 3

Mengoli Jeff · CIK 0001819282 · Chief Legal Officer/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 125,812

F3 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $58.69 to $59.6899, 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 4 to this Form 4.

SEC source: 0001562180-21-005435 · primarydocument.xml · nonDerivative · entry 2

Mengoli Jeff · CIK 0001819282 · Chief Legal Officer/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 127,409

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: The stock option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 10, 2021.

SEC source: 0001562180-21-005435 · primarydocument.xml · nonDerivative · entry 1

Mengoli Jeff · CIK 0001819282 · Chief Legal Officer/Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 125,409

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The stock option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 30, 2020.

SEC source: 0001062993-21-007476 · form4.xml · nonDerivative · entry 6

BOHN LAWRENCE S · CIK 0001135369 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 54,116

F8 · kind: Represents shares previously reported as held through General Catalyst Partners IV, LP and which are now owned directly.

SEC source: 0001062993-21-007476 · form4.xml · nonDerivative · entry 5

BOHN LAWRENCE S · CIK 0001135369 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By General Catalyst Partners IV, LP

Disclosed balance after: 0

F7 · kind: Effective August 13, 2021, General Catalyst Partners IV, L.P., a venture capital partnership, distributed in-kind, without consideration, a total of 521,349 shares of Series 1 Common Stock of the Issuer to its general and limited partners.

F6 · ownership.nature: The reported securities were held directly by General Catalyst Partners IV, L.P. General Catalyst GP IV, LLC is the general partner of General Catalyst Partners 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 Partners IV, L.P. The Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest in such securities.

SEC source: 0001562180-21-007393 · primarydocument.xml · nonDerivative · entry 2

Bellm Brent · CIK 0001513984 · Director · President Chief Exec Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Hilary Bellm through her partnership interests in Elkmont Ltd.

Disclosed balance after: 419,680

F1 · shares: In connection with the reporting person's estate plan, the reporting person and the reporting person's spouse each transferred 659,907 shares to Elkmont Ltd. ("Elkmont"), a limited partnership of which the reporting person and the reporting person's spouse are the sole limited partners. The reporting person is the sole manager of Elkmont Investment Management, LLC, a limited liability company that is the sole general partner of Elkmont and wholly owned by the reporting person and the reporting person's spouse.

F2 · shares: In connection with the reporting person's estate plan, the reporting person and the reporting person's spouse gifted 18.0% and 18.2%, respectively, of the limited partnership interests in Elkmont to intentionally defective grantor trusts ("IDGT"), the sole beneficiaries of which are the reporting person or the reporting person's spouse and the reporting person's children. The reporting person is the sole trustee of the IDGTs.

SEC source: 0001562180-21-007393 · primarydocument.xml · nonDerivative · entry 1

Bellm Brent · CIK 0001513984 · Director · President Chief Exec Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · By Brent Bellm through his partnership interests in Elkmont Ltd.

Disclosed balance after: 422,319

F1 · shares: In connection with the reporting person's estate plan, the reporting person and the reporting person's spouse each transferred 659,907 shares to Elkmont Ltd. ("Elkmont"), a limited partnership of which the reporting person and the reporting person's spouse are the sole limited partners. The reporting person is the sole manager of Elkmont Investment Management, LLC, a limited liability company that is the sole general partner of Elkmont and wholly owned by the reporting person and the reporting person's spouse.

F2 · shares: In connection with the reporting person's estate plan, the reporting person and the reporting person's spouse gifted 18.0% and 18.2%, respectively, of the limited partnership interests in Elkmont to intentionally defective grantor trusts ("IDGT"), the sole beneficiaries of which are the reporting person or the reporting person's spouse and the reporting person's children. The reporting person is the sole trustee of the IDGTs.

SEC source: 0001062993-21-007476 · form4.xml · nonDerivative · entry 4

BOHN LAWRENCE S · CIK 0001135369 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By General Catalyst Partners IV, LP

Disclosed balance after: 521,349

F5 · kind: Represents shares previously reported as held through General Catalyst Group IV, LP.

F6 · ownership.nature: The reported securities were held directly by General Catalyst Partners IV, L.P. General Catalyst GP IV, LLC is the general partner of General Catalyst Partners 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 Partners IV, L.P. The Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest in such securities.

SEC source: 0001062993-21-007476 · form4.xml · nonDerivative · entry 3

BOHN LAWRENCE S · CIK 0001135369 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By General Catalyst Partners IV, LP

Disclosed balance after: 521,014

F5 · kind: Represents shares previously reported as held through General Catalyst Group IV, LP.

F6 · ownership.nature: The reported securities were held directly by General Catalyst Partners IV, L.P. General Catalyst GP IV, LLC is the general partner of General Catalyst Partners 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 Partners IV, L.P. The Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest in such securities.

SEC source: 0001062993-21-007476 · form4.xml · nonDerivative · entry 2

BOHN LAWRENCE S · CIK 0001135369 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By GC Entrepreneurs Fund IV, L.P.

Disclosed balance after: 0

F3 · kind: Effective August 11, 2021, GC Entrepreneurs Fund IV, L.P., a venture capital partnership, distributed in-kind, without consideration, a total of 67,176 shares of Series 1 Common Stock of the Issuer to its general and limited partners.

F4 · ownership.nature: 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 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 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.