W

SEC source: 0001628280-23-033762 · wk-form4_1696383662.xml · nonDerivative · entry 11

Blotner Jon · CIK 0001994593 · Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,045

F1 · kind: Represents the number of shares sold by Wayfair Inc. on behalf of the reporting person, which sale is mandatory pursuant to Wayfair Inc.'s policies to cover necessary tax withholding obligations in connection with the vesting of the Restricted Stock Units RSUs listed in Table II. Such sales do not represent a discretionary trade by the reporting person.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $61.23 to $61.87, inclusive. The reporting person undertakes to provide to Wayfair Inc., any security holder of Wayfair Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0001628280-23-033762 · wk-form4_1696383662.xml · nonDerivative · entry 10

Blotner Jon · CIK 0001994593 · Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,420

F1 · kind: Represents the number of shares sold by Wayfair Inc. on behalf of the reporting person, which sale is mandatory pursuant to Wayfair Inc.'s policies to cover necessary tax withholding obligations in connection with the vesting of the Restricted Stock Units RSUs listed in Table II. Such sales do not represent a discretionary trade by the reporting person.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.72 to $60.03, inclusive. The reporting person undertakes to provide to Wayfair Inc., any security holder of Wayfair Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0001628280-23-033762 · wk-form4_1696383662.xml · nonDerivative · entry 9

Blotner Jon · CIK 0001994593 · Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,649

F1 · kind: Represents the number of shares sold by Wayfair Inc. on behalf of the reporting person, which sale is mandatory pursuant to Wayfair Inc.'s policies to cover necessary tax withholding obligations in connection with the vesting of the Restricted Stock Units RSUs listed in Table II. Such sales do not represent a discretionary trade by the reporting person.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.03 to $59.23, inclusive. The reporting person undertakes to provide to Wayfair Inc., any security holder of Wayfair Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0001628280-23-033762 · wk-form4_1696383662.xml · nonDerivative · entry 8

Blotner Jon · CIK 0001994593 · Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,849

F1 · kind: Represents the number of shares sold by Wayfair Inc. on behalf of the reporting person, which sale is mandatory pursuant to Wayfair Inc.'s policies to cover necessary tax withholding obligations in connection with the vesting of the Restricted Stock Units RSUs listed in Table II. Such sales do not represent a discretionary trade by the reporting person.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $57.46 to $57.98, inclusive. The reporting person undertakes to provide to Wayfair Inc., any security holder of Wayfair Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0001628280-23-033762 · wk-form4_1696383662.xml · nonDerivative · entry 7

Blotner Jon · CIK 0001994593 · Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 29,549

F1 · kind: Represents the number of shares sold by Wayfair Inc. on behalf of the reporting person, which sale is mandatory pursuant to Wayfair Inc.'s policies to cover necessary tax withholding obligations in connection with the vesting of the Restricted Stock Units RSUs listed in Table II. Such sales do not represent a discretionary trade by the reporting person.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $56.42 to $57.41, inclusive. The reporting person undertakes to provide to Wayfair Inc., any security holder of Wayfair Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0001628280-23-033762 · wk-form4_1696383662.xml · nonDerivative · entry 6

Blotner Jon · CIK 0001994593 · Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 31,097

F1 · kind: Represents the number of shares sold by Wayfair Inc. on behalf of the reporting person, which sale is mandatory pursuant to Wayfair Inc.'s policies to cover necessary tax withholding obligations in connection with the vesting of the Restricted Stock Units RSUs listed in Table II. Such sales do not represent a discretionary trade by the reporting person.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $55.41 to $56.37, inclusive. The reporting person undertakes to provide to Wayfair Inc., any security holder of Wayfair Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0001628280-23-033754 · wk-form4_1696382359.xml · nonDerivative · entry 12

Gulliver Kate · CIK 0001950170 · CFO and Chief Admin Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 58,614

F1 · kind: Represents the number of shares sold by Wayfair Inc. on behalf of the reporting person, which sale is mandatory pursuant to Wayfair Inc.'s policies to cover necessary tax withholding obligations in connection with the vesting of the RSUs listed in Table II. Such sales do not represent a discretionary trade by the reporting person.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $61.23 to $61.87, inclusive. The reporting person undertakes to provide to Wayfair Inc., any security holder of Wayfair Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0001628280-23-033754 · wk-form4_1696382359.xml · nonDerivative · entry 11

Gulliver Kate · CIK 0001950170 · CFO and Chief Admin Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 59,066

F1 · kind: Represents the number of shares sold by Wayfair Inc. on behalf of the reporting person, which sale is mandatory pursuant to Wayfair Inc.'s policies to cover necessary tax withholding obligations in connection with the vesting of the RSUs listed in Table II. Such sales do not represent a discretionary trade by the reporting person.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.49 to $59.92, inclusive. The reporting person undertakes to provide to Wayfair Inc., any security holder of Wayfair Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0001628280-23-033754 · wk-form4_1696382359.xml · nonDerivative · entry 10

Gulliver Kate · CIK 0001950170 · CFO and Chief Admin Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 59,526

F1 · kind: Represents the number of shares sold by Wayfair Inc. on behalf of the reporting person, which sale is mandatory pursuant to Wayfair Inc.'s policies to cover necessary tax withholding obligations in connection with the vesting of the RSUs listed in Table II. Such sales do not represent a discretionary trade by the reporting person.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $58.39 to $59.23, inclusive. The reporting person undertakes to provide to Wayfair Inc., any security holder of Wayfair Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0001628280-23-033754 · wk-form4_1696382359.xml · nonDerivative · entry 9

Gulliver Kate · CIK 0001950170 · CFO and Chief Admin Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 59,826

F1 · kind: Represents the number of shares sold by Wayfair Inc. on behalf of the reporting person, which sale is mandatory pursuant to Wayfair Inc.'s policies to cover necessary tax withholding obligations in connection with the vesting of the RSUs listed in Table II. Such sales do not represent a discretionary trade by the reporting person.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $57.34 to $57.98, inclusive. The reporting person undertakes to provide to Wayfair Inc., any security holder of Wayfair Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0001628280-23-033754 · wk-form4_1696382359.xml · nonDerivative · entry 8

Gulliver Kate · CIK 0001950170 · CFO and Chief Admin Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 61,626

F1 · kind: Represents the number of shares sold by Wayfair Inc. on behalf of the reporting person, which sale is mandatory pursuant to Wayfair Inc.'s policies to cover necessary tax withholding obligations in connection with the vesting of the RSUs listed in Table II. Such sales do not represent a discretionary trade by the reporting person.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $56.35 to $57.33, inclusive. The reporting person undertakes to provide to Wayfair Inc., any security holder of Wayfair Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0001628280-23-033754 · wk-form4_1696382359.xml · nonDerivative · entry 7

Gulliver Kate · CIK 0001950170 · CFO and Chief Admin Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 64,619

F1 · kind: Represents the number of shares sold by Wayfair Inc. on behalf of the reporting person, which sale is mandatory pursuant to Wayfair Inc.'s policies to cover necessary tax withholding obligations in connection with the vesting of the RSUs listed in Table II. Such sales do not represent a discretionary trade by the reporting person.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $55.37 to $56.33, inclusive. The reporting person undertakes to provide to Wayfair Inc., any security holder of Wayfair Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0001628280-23-033753 · wk-form4_1696381109.xml · derivative · entry 10

Netzer Thomas · CIK 0001783251 · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 19,869 shares

Expires not disclosed

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.

F8 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Class A Common Stock when vested.

F10 · derivative.exercise_date: These RSUs, which were granted on September 20, 2023, vest upon the satisfaction of a service condition and have no expiration date. The service condition was fully satisfied on October 1, 2023.

F10 · derivative.expiration_date: These RSUs, which were granted on September 20, 2023, vest upon the satisfaction of a service condition and have no expiration date. The service condition was fully satisfied on October 1, 2023.

SEC source: 0001628280-23-033753 · wk-form4_1696381109.xml · derivative · entry 9

Netzer Thomas · CIK 0001783251 · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,491

Underlying: Class A Common Stock · 4,410 shares

Expires not disclosed

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.

F8 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Class A Common Stock when vested.

F9 · derivative.exercise_date: These RSUs, which were granted on April 18, 2022, vest upon the satisfaction of a service condition and have no expiration date. The service condition was initially partially satisfied on July 1, 2022 as to 5,051 shares and vest as to varying amounts thereafter for every subsequent three months of continuous service over a period of five years. With respect to the number of shares that have not vested, subject to continued service on each applicable vesting date, 4,410 shares will vest on each of January 1, 2024 and April 1, 2024, 11,555 shares will vest in substantially equal quarterly amounts commencing July 1, 2024, 3,321 shares will vest in substantially equal quarterly amounts commencing July 1, 2025, and 4,795 shares will vest in substantially equal quarterly amounts commencing July 1, 2026.

F9 · derivative.expiration_date: These RSUs, which were granted on April 18, 2022, vest upon the satisfaction of a service condition and have no expiration date. The service condition was initially partially satisfied on July 1, 2022 as to 5,051 shares and vest as to varying amounts thereafter for every subsequent three months of continuous service over a period of five years. With respect to the number of shares that have not vested, subject to continued service on each applicable vesting date, 4,410 shares will vest on each of January 1, 2024 and April 1, 2024, 11,555 shares will vest in substantially equal quarterly amounts commencing July 1, 2024, 3,321 shares will vest in substantially equal quarterly amounts commencing July 1, 2025, and 4,795 shares will vest in substantially equal quarterly amounts commencing July 1, 2026.

SEC source: 0001628280-23-033753 · wk-form4_1696381109.xml · nonDerivative · entry 2

Netzer Thomas · CIK 0001783251 · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 129,747

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.

SEC source: 0001628280-23-033753 · wk-form4_1696381109.xml · nonDerivative · entry 1

Netzer Thomas · CIK 0001783251 · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 109,878

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.

SEC source: 0001628280-23-033763 · wf-form4_169638430876025.xml · derivative · entry 13

Tan Fiona · CIK 0001867558 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 19,856 shares

Expires not disclosed

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.

F9 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Class A Common Stock when vested.

F12 · derivative.exercise_date: These RSUs, which were granted on September 20, 2023, vest upon the satisfaction of a service condition and have no expiration date. The service condition was fully satisfied on October 1, 2023.

F12 · derivative.expiration_date: These RSUs, which were granted on September 20, 2023, vest upon the satisfaction of a service condition and have no expiration date. The service condition was fully satisfied on October 1, 2023.

SEC source: 0001628280-23-033763 · wf-form4_169638430876025.xml · derivative · entry 12

Tan Fiona · CIK 0001867558 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 14,000

Underlying: Class A Common Stock · 4,500 shares

Expires not disclosed

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.

F9 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Class A Common Stock when vested.

F11 · derivative.exercise_date: These RSUs, which were granted on November 12, 2020, vest upon the satisfaction of a service condition and have no expiration date. With respect to the number of shares that have not vested, subject to continued service on each applicable vesting date, 14,000 shares will vest in equal quarterly amounts commencing January 1, 2024.

F11 · derivative.expiration_date: These RSUs, which were granted on November 12, 2020, vest upon the satisfaction of a service condition and have no expiration date. With respect to the number of shares that have not vested, subject to continued service on each applicable vesting date, 14,000 shares will vest in equal quarterly amounts commencing January 1, 2024.

SEC source: 0001628280-23-033763 · wf-form4_169638430876025.xml · derivative · entry 11

Tan Fiona · CIK 0001867558 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 20,522

Underlying: Class A Common Stock · 1,791 shares

Expires not disclosed

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.

F9 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Class A Common Stock when vested.

F10 · derivative.exercise_date: These RSUs, which were granted on April 18, 2022, vest upon the satisfaction of a service condition and have no expiration date. The service condition was initially partially satisfied on July 1, 2022 as to 3,822 shares and vest as to varying amounts thereafter for every subsequent three months of continuous service over a period of five years. With respect to the number of shares that have not vested, subject to continued service on each applicable vesting date, 1,791 shares will vest on April 1, 2024, 5,602 shares will vest in substantially equal quarterly amounts commencing July 1, 2024, 6,542 shares will vest in substantially equal quarterly amounts commencing July 1, 2025, and 4,795 shares will vest in substantially equal quarterly amounts commencing July 1, 2026.

F10 · derivative.expiration_date: These RSUs, which were granted on April 18, 2022, vest upon the satisfaction of a service condition and have no expiration date. The service condition was initially partially satisfied on July 1, 2022 as to 3,822 shares and vest as to varying amounts thereafter for every subsequent three months of continuous service over a period of five years. With respect to the number of shares that have not vested, subject to continued service on each applicable vesting date, 1,791 shares will vest on April 1, 2024, 5,602 shares will vest in substantially equal quarterly amounts commencing July 1, 2024, 6,542 shares will vest in substantially equal quarterly amounts commencing July 1, 2025, and 4,795 shares will vest in substantially equal quarterly amounts commencing July 1, 2026.

SEC source: 0001628280-23-033763 · wf-form4_169638430876025.xml · nonDerivative · entry 3

Tan Fiona · CIK 0001867558 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 103,385

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.

SEC source: 0001628280-23-033763 · wf-form4_169638430876025.xml · nonDerivative · entry 2

Tan Fiona · CIK 0001867558 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 83,529

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.

SEC source: 0001628280-23-033763 · wf-form4_169638430876025.xml · nonDerivative · entry 1

Tan Fiona · CIK 0001867558 · Chief Technology Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 79,029

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.

SEC source: 0001628280-23-033762 · wk-form4_1696383662.xml · derivative · entry 16

Blotner Jon · CIK 0001994593 · Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 7,532 shares

Expires not disclosed

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.

F8 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Class A Common Stock when vested.

F13 · derivative.exercise_date: These RSUs, which were granted on September 20, 2023, vest upon the satisfaction of a service condition and have no expiration date. The service condition was fully satisfied on October 1, 2023.

F13 · derivative.expiration_date: These RSUs, which were granted on September 20, 2023, vest upon the satisfaction of a service condition and have no expiration date. The service condition was fully satisfied on October 1, 2023.

SEC source: 0001628280-23-033762 · wk-form4_1696383662.xml · derivative · entry 15

Blotner Jon · CIK 0001994593 · Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,896

Underlying: Class A Common Stock · 735 shares

Expires not disclosed

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.

F8 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Class A Common Stock when vested.

F12 · derivative.exercise_date: These RSUs, which were granted in multiple awards on April 18, 2022, vest upon the satisfaction of a service condition and have no expiration date. With respect to the number of shares that have not vested, subject to continued service on each applicable vesting date, 735 shares will vest on January 1, 2024, 736 shares will vest on April 1, 2024, 1,973 shares will vest in substantially equal quarterly amounts commencing July 1, 2024, 723 shares will vest in substantially equal quarterly amounts commencing July 1, 2025, and 729 shares will vest in substantially equal quarterly amounts commencing July 1, 2026.

F12 · derivative.expiration_date: These RSUs, which were granted in multiple awards on April 18, 2022, vest upon the satisfaction of a service condition and have no expiration date. With respect to the number of shares that have not vested, subject to continued service on each applicable vesting date, 735 shares will vest on January 1, 2024, 736 shares will vest on April 1, 2024, 1,973 shares will vest in substantially equal quarterly amounts commencing July 1, 2024, 723 shares will vest in substantially equal quarterly amounts commencing July 1, 2025, and 729 shares will vest in substantially equal quarterly amounts commencing July 1, 2026.

SEC source: 0001628280-23-033762 · wk-form4_1696383662.xml · derivative · entry 14

Blotner Jon · CIK 0001994593 · Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 6,085

Underlying: Class A Common Stock · 966 shares

Expires not disclosed

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.

F8 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Class A Common Stock when vested.

F11 · derivative.exercise_date: These RSUs, which were granted in multiple awards on November 11, 2021, vest upon the satisfaction of a service condition and have no expiration date. With respect to the number of shares that have not vested, subject to continued service on each applicable vesting date, 3,730 shares will vest in substantially equal quarterly amounts commencing January 1, 2024, 1,049 shares will vest in substantially equal quarterly amounts commencing January 1, 2025, and 1,306 shares will vest in substantially equal quarterly amounts commencing on January 1, 2026.

F11 · derivative.expiration_date: These RSUs, which were granted in multiple awards on November 11, 2021, vest upon the satisfaction of a service condition and have no expiration date. With respect to the number of shares that have not vested, subject to continued service on each applicable vesting date, 3,730 shares will vest in substantially equal quarterly amounts commencing January 1, 2024, 1,049 shares will vest in substantially equal quarterly amounts commencing January 1, 2025, and 1,306 shares will vest in substantially equal quarterly amounts commencing on January 1, 2026.

SEC source: 0001628280-23-033762 · wk-form4_1696383662.xml · derivative · entry 13

Blotner Jon · CIK 0001994593 · Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 670

Underlying: Class A Common Stock · 320 shares

Expires not disclosed

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.

F8 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Class A Common Stock when vested.

F10 · derivative.exercise_date: These RSUs, which were granted on November 12, 2020, vest upon the satisfaction of a service condition and have no expiration date. With respect to the number of shares that have not vested, subject to continued service on each applicable vesting date, 670 shares will vest in substantially equal quarterly amounts commencing January 1, 2025.

F10 · derivative.expiration_date: These RSUs, which were granted on November 12, 2020, vest upon the satisfaction of a service condition and have no expiration date. With respect to the number of shares that have not vested, subject to continued service on each applicable vesting date, 670 shares will vest in substantially equal quarterly amounts commencing January 1, 2025.

SEC source: 0001628280-23-033762 · wk-form4_1696383662.xml · derivative · entry 12

Blotner Jon · CIK 0001994593 · Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,261

Underlying: Class A Common Stock · 375 shares

Expires not disclosed

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.

F8 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Class A Common Stock when vested.

F9 · derivative.exercise_date: These RSUs, which were granted in multiple awards on November 5, 2019, vest upon the satisfaction of a service condition and have no expiration date. With respect to the number of shares that have not vested, subject to continued service on each applicable vesting date, 1,261 shares will vest in substantially equal quarterly amounts commencing January 1, 2024.

F9 · derivative.expiration_date: These RSUs, which were granted in multiple awards on November 5, 2019, vest upon the satisfaction of a service condition and have no expiration date. With respect to the number of shares that have not vested, subject to continued service on each applicable vesting date, 1,261 shares will vest in substantially equal quarterly amounts commencing January 1, 2024.

SEC source: 0001628280-23-033762 · wk-form4_1696383662.xml · nonDerivative · entry 5

Blotner Jon · CIK 0001994593 · Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 32,300

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.

SEC source: 0001628280-23-033762 · wk-form4_1696383662.xml · nonDerivative · entry 4

Blotner Jon · CIK 0001994593 · Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,768

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.

SEC source: 0001628280-23-033762 · wk-form4_1696383662.xml · nonDerivative · entry 3

Blotner Jon · CIK 0001994593 · Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 24,033

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.

SEC source: 0001628280-23-033762 · wk-form4_1696383662.xml · nonDerivative · entry 2

Blotner Jon · CIK 0001994593 · Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,067

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.

SEC source: 0001628280-23-033762 · wk-form4_1696383662.xml · nonDerivative · entry 1

Blotner Jon · CIK 0001994593 · Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,747

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.

SEC source: 0001628280-23-033754 · wk-form4_1696382359.xml · derivative · entry 18

Gulliver Kate · CIK 0001950170 · CFO and Chief Admin Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 14,071 shares

Expires not disclosed

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.

F8 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Class A Common Stock when vested.

F14 · derivative.exercise_date: These RSUs vest upon the satisfaction of a service condition and have no expiration date. The service condition was fully satisfied on October 1, 2023.

F14 · derivative.expiration_date: These RSUs vest upon the satisfaction of a service condition and have no expiration date. The service condition was fully satisfied on October 1, 2023.

SEC source: 0001628280-23-033754 · wk-form4_1696382359.xml · derivative · entry 17

Gulliver Kate · CIK 0001950170 · CFO and Chief Admin Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,522

Underlying: Class A Common Stock · 750 shares

Expires not disclosed

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.

F8 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Class A Common Stock when vested.

F13 · derivative.exercise_date: These RSUs, which were granted on November 5, 2019, vest upon the satisfaction of a service condition and have no expiration date. With respect to the number of shares that have not vested, subject to continued service on each applicable vesting date, 2,522 shares will vest in substantially equal quarterly amounts commencing January 1, 2024.

F13 · derivative.expiration_date: These RSUs, which were granted on November 5, 2019, vest upon the satisfaction of a service condition and have no expiration date. With respect to the number of shares that have not vested, subject to continued service on each applicable vesting date, 2,522 shares will vest in substantially equal quarterly amounts commencing January 1, 2024.

SEC source: 0001628280-23-033754 · wk-form4_1696382359.xml · derivative · entry 16

Gulliver Kate · CIK 0001950170 · CFO and Chief Admin Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 13,771

Underlying: Class A Common Stock · 2,084 shares

Expires not disclosed

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.

F8 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Class A Common Stock when vested.

F12 · derivative.exercise_date: These RSUs, which were granted on February 1, 2023, vest upon the satisfaction of a service condition and have no expiration date. The service condition was initially partially satisfied on April 1, 2023 as to 6,731 shares and vest as to varying amounts thereafter for every subsequent three months of continuous service over a period of four years. With respect to the number of shares that have not vested, subject to continued service on each applicable vesting date, 2,083 shares will vest on January 1, 2024, 2,084 shares will vest on April 1, 2024, 5,556 shares will vest in equal quarterly amounts commencing July 1, 2024, 2,336 shares will vest in equal quarterly amounts commencing July 1, 2025, and 1,712 shares will vest in equal quarterly amounts commencing July 1, 2026.

F12 · derivative.expiration_date: These RSUs, which were granted on February 1, 2023, vest upon the satisfaction of a service condition and have no expiration date. The service condition was initially partially satisfied on April 1, 2023 as to 6,731 shares and vest as to varying amounts thereafter for every subsequent three months of continuous service over a period of four years. With respect to the number of shares that have not vested, subject to continued service on each applicable vesting date, 2,083 shares will vest on January 1, 2024, 2,084 shares will vest on April 1, 2024, 5,556 shares will vest in equal quarterly amounts commencing July 1, 2024, 2,336 shares will vest in equal quarterly amounts commencing July 1, 2025, and 1,712 shares will vest in equal quarterly amounts commencing July 1, 2026.

SEC source: 0001628280-23-033754 · wk-form4_1696382359.xml · derivative · entry 15

Gulliver Kate · CIK 0001950170 · CFO and Chief Admin Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 5,830

Underlying: Class A Common Stock · 870 shares

Expires not disclosed

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.

F8 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Class A Common Stock when vested.

F11 · derivative.exercise_date: These RSUs, which were granted on April 18, 2022, vest upon the satisfaction of a service condition and have no expiration date. The service condition was initially partially satisfied on July 1, 2022 as to 1,811 shares and vest as to varying amounts thereafter for every subsequent three months of continuous service over a period of five years. With respect to the number of shares that have not vested, subject to continued service on each applicable vesting date, 870 shares will vest on January 1, 2024, 871 shares will vest on April 1, 2024, 2,346 shares will vest in substantially equal quarterly amounts commencing July 1, 2024, 868 shares will vest in equal quarterly amounts commencing July 1, 2025, and 875 shares will vest in substantially equal quarterly amounts commencing July 1, 2026.

F11 · derivative.expiration_date: These RSUs, which were granted on April 18, 2022, vest upon the satisfaction of a service condition and have no expiration date. The service condition was initially partially satisfied on July 1, 2022 as to 1,811 shares and vest as to varying amounts thereafter for every subsequent three months of continuous service over a period of five years. With respect to the number of shares that have not vested, subject to continued service on each applicable vesting date, 870 shares will vest on January 1, 2024, 871 shares will vest on April 1, 2024, 2,346 shares will vest in substantially equal quarterly amounts commencing July 1, 2024, 868 shares will vest in equal quarterly amounts commencing July 1, 2025, and 875 shares will vest in substantially equal quarterly amounts commencing July 1, 2026.

SEC source: 0001628280-23-033754 · wk-form4_1696382359.xml · derivative · entry 14

Gulliver Kate · CIK 0001950170 · CFO and Chief Admin Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,340

Underlying: Class A Common Stock · 503 shares

Expires not disclosed

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.

F8 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Class A Common Stock when vested.

F10 · derivative.exercise_date: These RSUs, which were granted on November 12, 2020, vest upon the satisfaction of a service condition and have no expiration date. With respect to the number of shares that have not vested, subject to continued service on each applicable vesting date, 1,340 shares will vest in equal quarterly amounts commencing January 1, 2025.

F10 · derivative.expiration_date: These RSUs, which were granted on November 12, 2020, vest upon the satisfaction of a service condition and have no expiration date. With respect to the number of shares that have not vested, subject to continued service on each applicable vesting date, 1,340 shares will vest in equal quarterly amounts commencing January 1, 2025.

SEC source: 0001628280-23-033754 · wk-form4_1696382359.xml · derivative · entry 13

Gulliver Kate · CIK 0001950170 · CFO and Chief Admin Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 5,666

Underlying: Class A Common Stock · 711 shares

Expires not disclosed

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.

F8 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Class A Common Stock when vested.

F9 · derivative.exercise_date: These RSUs, which were granted on November 11, 2021, vest upon the satisfaction of a service condition and have no expiration date. With respect to the number of shares that have not vested, subject to continued service on each applicable vesting date, 3,376 shares will vest in substantially equal quarterly amounts commencing January 1, 2024, 723 shares will vest in substantially equal quarterly amounts commencing January 1, 2025, and 1,567 shares will vest in substantially equal quarterly amounts commencing on January 1, 2026.

F9 · derivative.expiration_date: These RSUs, which were granted on November 11, 2021, vest upon the satisfaction of a service condition and have no expiration date. With respect to the number of shares that have not vested, subject to continued service on each applicable vesting date, 3,376 shares will vest in substantially equal quarterly amounts commencing January 1, 2024, 723 shares will vest in substantially equal quarterly amounts commencing January 1, 2025, and 1,567 shares will vest in substantially equal quarterly amounts commencing on January 1, 2026.

SEC source: 0001628280-23-033754 · wk-form4_1696382359.xml · nonDerivative · entry 6

Gulliver Kate · CIK 0001950170 · CFO and Chief Admin Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 66,775

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.

SEC source: 0001628280-23-033754 · wk-form4_1696382359.xml · nonDerivative · entry 5

Gulliver Kate · CIK 0001950170 · CFO and Chief Admin Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 52,704

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.

SEC source: 0001628280-23-033754 · wk-form4_1696382359.xml · nonDerivative · entry 4

Gulliver Kate · CIK 0001950170 · CFO and Chief Admin Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 51,954

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.

SEC source: 0001628280-23-033754 · wk-form4_1696382359.xml · nonDerivative · entry 3

Gulliver Kate · CIK 0001950170 · CFO and Chief Admin Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 51,451

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.

SEC source: 0001628280-23-033754 · wk-form4_1696382359.xml · nonDerivative · entry 2

Gulliver Kate · CIK 0001950170 · CFO and Chief Admin Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 49,367

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.

SEC source: 0001628280-23-033754 · wk-form4_1696382359.xml · nonDerivative · entry 1

Gulliver Kate · CIK 0001950170 · CFO and Chief Admin Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 48,497

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.

SEC source: 0001628280-23-032882 · wf-form4_169542530480823.xml · derivative · entry 1

Netzer Thomas · CIK 0001783251 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,869

Underlying: Class A Common Stock · 19,869 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Class A Common Stock when vested.

F2 · derivative.exercise_date: These RSUs vest upon the satisfaction of a service condition and have no expiration date. The service condition is fully satisfied on October 1, 2023.

F2 · derivative.expiration_date: These RSUs vest upon the satisfaction of a service condition and have no expiration date. The service condition is fully satisfied on October 1, 2023.

SEC source: 0001628280-23-032884 · wf-form4_169542570336158.xml · derivative · entry 1

Tan Fiona · CIK 0001867558 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,856

Underlying: Class A Common Stock · 19,856 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Class A Common Stock when vested.

F2 · derivative.exercise_date: These RSUs vest upon the satisfaction of a service condition and have no expiration date. The service condition is fully satisfied on October 1, 2023.

F2 · derivative.expiration_date: These RSUs vest upon the satisfaction of a service condition and have no expiration date. The service condition is fully satisfied on October 1, 2023.

SEC source: 0001628280-23-032883 · wf-form4_169542560353651.xml · derivative · entry 1

Oblak Steve · CIK 0001620159 · Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,505

Underlying: Class A Common Stock · 14,505 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Class A Common Stock when vested.

F2 · derivative.exercise_date: These RSUs vest upon the satisfaction of a service condition and have no expiration date. The service condition is fully satisfied on October 1, 2023.

F2 · derivative.expiration_date: These RSUs vest upon the satisfaction of a service condition and have no expiration date. The service condition is fully satisfied on October 1, 2023.

SEC source: 0001628280-23-032881 · wf-form4_169542492212637.xml · derivative · entry 1

Gulliver Kate · CIK 0001950170 · CFO and Chief Admin Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,071

Underlying: Class A Common Stock · 14,071 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Class A Common Stock when vested.

F2 · derivative.exercise_date: These RSUs vest upon the satisfaction of a service condition and have no expiration date. The service condition is fully satisfied on October 1, 2023.

F2 · derivative.expiration_date: These RSUs vest upon the satisfaction of a service condition and have no expiration date. The service condition is fully satisfied on October 1, 2023.

SEC source: 0001783251-23-000002 · wf-form4_169516782232701.xml · nonDerivative · entry 2

Netzer Thomas · CIK 0001783251 · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 105,468

F1 · kind: Represents the number of shares sold by Wayfair Inc. on behalf of the reporting person, which sale is mandatory pursuant to Wayfair Inc.'s policies to cover necessary tax withholding obligations in connection with the vesting of the RSUs listed in Table II. Such sales do not represent a discretionary trade by the reporting person.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $69.41 to $69.61, inclusive. The reporting person undertakes to provide to Wayfair Inc., any security holder of Wayfair Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

SEC source: 0001620159-23-000001 · wf-form4_169516794389828.xml · nonDerivative · entry 2

Oblak Steve · CIK 0001620159 · Chief Commercial Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 244,587

F1 · kind: Represents the number of shares sold by Wayfair Inc. on behalf of the reporting person, which sale is mandatory pursuant to Wayfair Inc.'s policies to cover necessary tax withholding obligations in connection with the vesting of the RSUs listed in Table II. Such sales do not represent a discretionary trade by the reporting person.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $69.29 to $69.45, inclusive. The reporting person undertakes to provide to Wayfair Inc., any security holder of Wayfair Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.