Mulliken John Champlin

SEC source: 0001616707-17-000686 · wf-form4_151207772190009.xml · nonDerivative · entry 2

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 183,895

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted 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 $67.90 to $68.15, 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: 0001616707-17-000686 · wf-form4_151207772190009.xml · nonDerivative · entry 1

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 184,595

F1 · kind: These shares were transferred to a donor advised charitable trust.

SEC source: 0001616707-17-000682 · wf-form4_151181819025919.xml · nonDerivative · entry 1

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 184,738

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

SEC source: 0001616707-17-000671 · wf-form4_151121201606612.xml · nonDerivative · entry 1

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 185,438

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

SEC source: 0001616707-17-000667 · wf-form4_151078433887196.xml · derivative · entry 5

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 2,000 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.

F1 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F1 · price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

SEC source: 0001616707-17-000667 · wf-form4_151078433887196.xml · derivative · entry 4

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,000

Underlying: Class A Common Stock · 2,000 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.

F1 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F1 · price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

SEC source: 0001616707-17-000667 · wf-form4_151078433887196.xml · derivative · entry 3

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,001

Underlying: Class B Common Stock · 2,000 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.

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Class B Common Stock when vested.

F4 · derivative.exercise_date: These RSUs vest upon the satisfaction of a service condition and an event condition and have no expiration date. The service condition is satisfied as to 1/5th of the shares on March 15, 2014 and as to an additional 1/60th of the shares for each month of continuous service thereafter. The event condition was satisfied on the closing of the issuer's initial public offering of Class A Common Stock.

F4 · derivative.expiration_date: These RSUs vest upon the satisfaction of a service condition and an event condition and have no expiration date. The service condition is satisfied as to 1/5th of the shares on March 15, 2014 and as to an additional 1/60th of the shares for each month of continuous service thereafter. The event condition was satisfied on the closing of the issuer's initial public offering of Class A Common Stock.

SEC source: 0001616707-17-000667 · wf-form4_151078433887196.xml · nonDerivative · entry 2

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 186,138

F2 · kind: Represents the number of shares required to be sold by the reporting person to cover tax withholding obligations in connection with the vesting of the RSUs listed in Table II and does not represent a discretionary trade by the reporting person.

SEC source: 0001616707-17-000667 · wf-form4_151078433887196.xml · nonDerivative · entry 1

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 187,128

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 · price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

SEC source: 0001616707-17-000656 · wf-form4_151060759174320.xml · nonDerivative · entry 1

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 185,128

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

SEC source: 0001616707-17-000650 · wf-form4_150965466765454.xml · nonDerivative · entry 3

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 185,828

F3 · kind: Represents sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

SEC source: 0001616707-17-000650 · wf-form4_150965466765454.xml · derivative · entry 6

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 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.

F1 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F1 · price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

SEC source: 0001616707-17-000650 · wf-form4_150965466765454.xml · derivative · entry 5

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 500

Underlying: Class A Common Stock · 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.

F1 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F1 · price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

SEC source: 0001616707-17-000650 · wf-form4_150965466765454.xml · derivative · entry 4

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,001

Underlying: Class B Common Stock · 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.

F4 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Class B Common Stock when vested.

F5 · derivative.exercise_date: These RSUs vest upon the satisfaction of a service condition and an event condition and have no expiration date. The service condition is satisfied as to 1/5th of the shares on March 1, 2014 and as to an additional 1/60th of the shares for each month of continuous service thereafter. The event condition was satisfied on the closing of the issuer's initial public offering of Class A Common Stock.

F5 · derivative.expiration_date: These RSUs vest upon the satisfaction of a service condition and an event condition and have no expiration date. The service condition is satisfied as to 1/5th of the shares on March 1, 2014 and as to an additional 1/60th of the shares for each month of continuous service thereafter. The event condition was satisfied on the closing of the issuer's initial public offering of Class A Common Stock.

SEC source: 0001616707-17-000650 · wf-form4_150965466765454.xml · nonDerivative · entry 2

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 186,528

F2 · kind: Represents the number of shares required to be sold by the reporting person to cover tax withholding obligations in connection with the vesting of the RSUs listed in Table II and does not represent a discretionary trade by the reporting person.

SEC source: 0001616707-17-000650 · wf-form4_150965466765454.xml · nonDerivative · entry 1

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 186,769

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 · price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

SEC source: 0001616707-17-000638 · wf-form4_150939470558153.xml · nonDerivative · entry 1

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 186,269

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted 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 $64.72 to $64.80, 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: 0001616707-17-000630 · wf-form4_150887599390080.xml · nonDerivative · entry 1

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 186,969

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted 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 $67.56 to $67.90, 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: 0001616707-17-000614 · wf-form4_150818470580524.xml · nonDerivative · entry 3

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 187,669

F4 · kind: Represents the number of shares required to be sold by the reporting person to cover tax withholding obligations in connection with the vesting of the RSUs listed in Table II and does not represent a discretionary trade by the reporting person.

SEC source: 0001616707-17-000614 · wf-form4_150818470580524.xml · derivative · entry 6

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 2,000 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.

F3 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F3 · price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F3 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F3 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

SEC source: 0001616707-17-000614 · wf-form4_150818470580524.xml · derivative · entry 5

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,000

Underlying: Class A Common Stock · 2,000 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.

F3 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F3 · price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F3 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F3 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

SEC source: 0001616707-17-000614 · wf-form4_150818470580524.xml · derivative · entry 4

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,001

Underlying: Class B Common Stock · 2,000 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.

F5 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Class B Common Stock when vested.

F6 · derivative.exercise_date: These RSUs vest upon the satisfaction of a service condition and an event condition and have no expiration date. The service condition is satisfied as to 1/5th of the shares on March 15, 2014 and as to an additional 1/60th of the shares for each month of continuous service thereafter. The event condition was satisfied on the closing of the issuer's initial public offering of Class A Common Stock.

F6 · derivative.expiration_date: These RSUs vest upon the satisfaction of a service condition and an event condition and have no expiration date. The service condition is satisfied as to 1/5th of the shares on March 15, 2014 and as to an additional 1/60th of the shares for each month of continuous service thereafter. The event condition was satisfied on the closing of the issuer's initial public offering of Class A Common Stock.

SEC source: 0001616707-17-000614 · wf-form4_150818470580524.xml · nonDerivative · entry 2

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 188,642

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.

F3 · price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

SEC source: 0001616707-17-000614 · wf-form4_150818470580524.xml · nonDerivative · entry 1

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 186,642

F1 · kind: Represents sales effected pursuant to a Rule 10b5-1 trading plan adopted 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 $66.02 to $66.36, 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: 0001616707-17-000608 · wf-form4_150732098091658.xml · nonDerivative · entry 1

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 187,342

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted 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 $71.36 to $71.38, 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: 0001616707-17-000602 · wf-form4_150697471183143.xml · nonDerivative · entry 3

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 188,042

F3 · kind: Represents the number of shares required to be sold by the reporting person to cover tax withholding obligations in connection with the vesting of the RSUs listed in Table II and does not represent a discretionary trade by the reporting person.

SEC source: 0001616707-17-000602 · wf-form4_150697471183143.xml · derivative · entry 6

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 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.

F2 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F2 · price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F2 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F2 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

SEC source: 0001616707-17-000602 · wf-form4_150697471183143.xml · derivative · entry 5

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 500

Underlying: Class A Common Stock · 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.

F2 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F2 · price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F2 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F2 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

SEC source: 0001616707-17-000602 · wf-form4_150697471183143.xml · derivative · entry 4

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,501

Underlying: Class B Common Stock · 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.

F4 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Class B Common Stock when vested.

F5 · derivative.exercise_date: These RSUs vest upon the satisfaction of a service condition and an event condition and have no expiration date. The service condition is satisfied as to 1/5th of the shares on March 1, 2014 and as to an additional 1/60th of the shares for each month of continuous service thereafter. The event condition was satisfied on the closing of the issuer's initial public offering of Class A Common Stock.

F5 · derivative.expiration_date: These RSUs vest upon the satisfaction of a service condition and an event condition and have no expiration date. The service condition is satisfied as to 1/5th of the shares on March 1, 2014 and as to an additional 1/60th of the shares for each month of continuous service thereafter. The event condition was satisfied on the closing of the issuer's initial public offering of Class A Common Stock.

SEC source: 0001616707-17-000602 · wf-form4_150697471183143.xml · nonDerivative · entry 2

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 188,278

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 · price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

SEC source: 0001616707-17-000602 · wf-form4_150697471183143.xml · nonDerivative · entry 1

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 187,778

F1 · kind: Represents sales effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

SEC source: 0001616707-17-000596 · wf-form4_150637415777944.xml · nonDerivative · entry 1

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 188,478

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted 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 $81.90 to $82.11, 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: 0001616707-17-000578 · wf-form4_150577016245008.xml · derivative · entry 12

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 70,000

Underlying: Class A Common Stock · 5,000 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 vest upon the satisfaction of a service condition and have no expiration date. The service condition is satisfied as to 1/5th of the shares on March 15, 2017 and as to an additional 1/20th of the shares for every three months of continuous service thereafter.

F11 · derivative.expiration_date: These RSUs vest upon the satisfaction of a service condition and have no expiration date. The service condition is satisfied as to 1/5th of the shares on March 15, 2017 and as to an additional 1/20th of the shares for every three months of continuous service thereafter.

SEC source: 0001616707-17-000578 · wf-form4_150577016245008.xml · derivative · entry 11

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,418

Underlying: Class A Common Stock · 452 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 vest upon the satisfaction of a service condition and have no expiration date. The service condition is satisfied as to 1/5th of the shares on September 15, 2016 and as to an additional 1/20th of the shares for every three months of continuous service thereafter.

F10 · derivative.expiration_date: These RSUs vest upon the satisfaction of a service condition and have no expiration date. The service condition is satisfied as to 1/5th of the shares on September 15, 2016 and as to an additional 1/20th of the shares for every three months of continuous service thereafter.

SEC source: 0001616707-17-000578 · wf-form4_150577016245008.xml · derivative · entry 10

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,000

Underlying: Class A Common Stock · 2,500 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.

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 vest upon the satisfaction of a service condition. The service condition is satisfied as to 20% of the shares on March 15, 2016 and as to an additional 5% of the shares for each 3-month period of continuous service thereafter.

F9 · derivative.expiration_date: These RSUs vest upon the satisfaction of a service condition. The service condition is satisfied as to 20% of the shares on March 15, 2016 and as to an additional 5% of the shares for each 3-month period of continuous service thereafter.

SEC source: 0001616707-17-000578 · wf-form4_150577016245008.xml · derivative · entry 9

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 2,000 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.

F3 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F3 · price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F3 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F3 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

SEC source: 0001616707-17-000578 · wf-form4_150577016245008.xml · derivative · entry 8

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,000

Underlying: Class A Common Stock · 2,000 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.

F3 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F3 · price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F3 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F3 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

SEC source: 0001616707-17-000578 · wf-form4_150577016245008.xml · derivative · entry 7

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,001

Underlying: Class B Common Stock · 2,000 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.

F6 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Class B Common Stock when vested.

F7 · derivative.exercise_date: These RSUs vest upon the satisfaction of a service condition and an event condition and have no expiration date. The service condition is satisfied as to 1/5th of the shares on March 15, 2014 and as to an additional 1/60th of the shares for each month of continuous service thereafter. The event condition was satisfied on the closing of the issuer's initial public offering of Class A Common Stock.

F7 · derivative.expiration_date: These RSUs vest upon the satisfaction of a service condition and an event condition and have no expiration date. The service condition is satisfied as to 1/5th of the shares on March 15, 2014 and as to an additional 1/60th of the shares for each month of continuous service thereafter. The event condition was satisfied on the closing of the issuer's initial public offering of Class A Common Stock.

SEC source: 0001616707-17-000578 · wf-form4_150577016245008.xml · nonDerivative · entry 6

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 189,178

F4 · kind: Represents the number of shares required to be sold by the reporting person to cover tax withholding obligations in connection with the vesting of the RSUs listed in Table II and does 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 $79.39 to $79.56, 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: 0001616707-17-000578 · wf-form4_150577016245008.xml · nonDerivative · entry 5

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 194,053

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: 0001616707-17-000578 · wf-form4_150577016245008.xml · nonDerivative · entry 4

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 189,053

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: 0001616707-17-000578 · wf-form4_150577016245008.xml · nonDerivative · entry 3

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 188,601

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: 0001616707-17-000578 · wf-form4_150577016245008.xml · nonDerivative · entry 2

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 186,101

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.

F3 · price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

SEC source: 0001616707-17-000578 · wf-form4_150577016245008.xml · nonDerivative · entry 1

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 184,101

F1 · kind: Represents sales effected pursuant to a Rule 10b5-1 trading plan adopted 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 $80.54 to $80.72, 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: 0001616707-17-000572 · wf-form4_150490143894384.xml · nonDerivative · entry 1

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 184,801

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted 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 $73.38 to $73.83, 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: 0001616707-17-000568 · wf-form4_150464297864204.xml · derivative · entry 6

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 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.

F3 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F3 · price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F3 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F3 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

SEC source: 0001616707-17-000568 · wf-form4_150464297864204.xml · derivative · entry 5

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 500

Underlying: Class A Common Stock · 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.

F3 · derivative.exercise_price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F3 · price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F3 · derivative.exercise_date: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

F3 · derivative.expiration_date: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.

SEC source: 0001616707-17-000568 · wf-form4_150464297864204.xml · derivative · entry 4

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,001

Underlying: Class B Common Stock · 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.

F5 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Class B Common Stock when vested.

F6 · derivative.exercise_date: These RSUs vest upon the satisfaction of a service condition and an event condition and have no expiration date. The service condition is satisfied as to 1/5th of the shares on March 1, 2014 and as to an additional 1/60th of the shares for each month of continuous service thereafter. The event condition was satisfied on the closing of the issuer's initial public offering of Class A Common Stock.

F6 · derivative.expiration_date: These RSUs vest upon the satisfaction of a service condition and an event condition and have no expiration date. The service condition is satisfied as to 1/5th of the shares on March 1, 2014 and as to an additional 1/60th of the shares for each month of continuous service thereafter. The event condition was satisfied on the closing of the issuer's initial public offering of Class A Common Stock.

SEC source: 0001616707-17-000568 · wf-form4_150464297864204.xml · nonDerivative · entry 3

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 185,501

F4 · kind: Represents the number of shares required to be sold by the reporting person to cover tax withholding obligations in connection with the vesting of the RSUs listed in Table II and does not represent a discretionary trade by the reporting person.

SEC source: 0001616707-17-000568 · wf-form4_150464297864204.xml · nonDerivative · entry 2

Mulliken John Champlin · CIK 0001620147 · Chief Technology Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 185,743

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.

F3 · price: Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock (a) upon transfer thereof, subject to certain exceptions, (b) upon the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate number of shares of the then outstanding Class A Common Stock and Class B Common Stock, or (c) in the event that holders of at least 66 2/3% of the then outstanding shares of Class B Common Stock elect to convert all shares of Class B Common Stock into shares of Class A Common Stock.