DIBS

SEC source: 0001600641-24-000139 · wk-form4_1718235751.xml · nonDerivative · entry 1

Rubinger Matthew · CIK 0001898365 · Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,542

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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

SEC source: 0001600641-24-000133 · wk-form4_1718235676.xml · derivative · entry 2

Robb Andrew George · CIK 0001863194 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 28,533 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F2 · derivative.expiration_date: The restricted stock units have no expiration date.

SEC source: 0001600641-24-000133 · wk-form4_1718235676.xml · nonDerivative · entry 1

Robb Andrew George · CIK 0001863194 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,238

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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

SEC source: 0001600641-24-000136 · wk-form4_1718235715.xml · derivative · entry 2

Volent Paula · CIK 0001801717 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 28,533 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F2 · derivative.expiration_date: The restricted stock units have no expiration date.

SEC source: 0001600641-24-000136 · wk-form4_1718235715.xml · nonDerivative · entry 1

Volent Paula · CIK 0001801717 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,238

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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

SEC source: 0001600641-24-000134 · wk-form4_1718235689.xml · derivative · entry 6

ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 712,500

Underlying: Common Stock · 47,500 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F4 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

F4 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

SEC source: 0001600641-24-000134 · wk-form4_1718235689.xml · derivative · entry 5

ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 412,500

Underlying: Common Stock · 37,500 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F3 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

F3 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

SEC source: 0001600641-24-000134 · wk-form4_1718235689.xml · nonDerivative · entry 2

ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,599,943

F2 · shares: These shares were retained by 1stdibs, Inc. ("1stdibs") via settlement on a net withholding basis in order to meet the tax withholding obligations of the reporting person in connection with the vesting of an installment of restricted stock units ("RSUs") granted to the reporting person on March 15, 2023 and March 8, 2024. None of these shares were sold in an open market transaction.

SEC source: 0001600641-24-000134 · wk-form4_1718235689.xml · nonDerivative · entry 1

ROSENBLATT DAVID S · CIK 0001237860 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,646,906

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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

SEC source: 0001600641-24-000140 · wk-form4_1718235764.xml · derivative · entry 2

HICKOK LORI A · CIK 0001186944 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 28,533 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F2 · derivative.expiration_date: The restricted stock units have no expiration date.

SEC source: 0001600641-24-000140 · wk-form4_1718235764.xml · nonDerivative · entry 1

HICKOK LORI A · CIK 0001186944 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,238

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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

SEC source: 0001600641-24-000135 · wk-form4_1718235701.xml · derivative · entry 5

Etergino Thomas J · CIK 0001336088 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 167,625

Underlying: Common Stock · 11,175 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F5 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

F5 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

SEC source: 0001600641-24-000135 · wk-form4_1718235701.xml · derivative · entry 4

Etergino Thomas J · CIK 0001336088 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 98,727

Underlying: Common Stock · 14,103 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F4 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 12 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

F4 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 12 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

SEC source: 0001600641-24-000135 · wk-form4_1718235701.xml · derivative · entry 3

Etergino Thomas J · CIK 0001336088 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 132,500

Underlying: Common Stock · 16,563 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F3 · derivative.exercise_date: Twenty-five percent (25%) of the restricted stock units shall vest on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. Thereafter, the remaining seventy-five percent (75%) of the restricted stock units shall vest in 12 equal quarterly installments starting on September 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

F3 · derivative.expiration_date: Twenty-five percent (25%) of the restricted stock units shall vest on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. Thereafter, the remaining seventy-five percent (75%) of the restricted stock units shall vest in 12 equal quarterly installments starting on September 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

SEC source: 0001600641-24-000135 · wk-form4_1718235701.xml · nonDerivative · entry 2

Etergino Thomas J · CIK 0001336088 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 115,700

F2 · shares: These shares were retained by 1stdibs, Inc. ("1stdibs") via settlement on a net withholding basis in order to meet the tax withholding obligations of the reporting person in connection with the vesting of an installment of restricted stock units ("RSUs") granted to the reporting person on June 2, 2022 ,March 14, 2023, and March 15, 2024. None of these shares were sold in an open market transaction.

SEC source: 0001600641-24-000135 · wk-form4_1718235701.xml · nonDerivative · entry 1

Etergino Thomas J · CIK 0001336088 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 137,061

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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

SEC source: 0001600641-24-000138 · wk-form4_1718235739.xml · derivative · entry 3

Cohler Matt · CIK 0001572685 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 28,533 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F3 · derivative.expiration_date: The restricted stock units have no expiration date.

SEC source: 0001600641-24-000138 · wk-form4_1718235739.xml · nonDerivative · entry 1

Cohler Matt · CIK 0001572685 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,238

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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

SEC source: 0001600641-24-000144 · wk-form4_1718235813.xml · derivative · entry 2

Schipper Brian · CIK 0001600116 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 28,533 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F2 · derivative.expiration_date: The restricted stock units have no expiration date.

SEC source: 0001600641-24-000144 · wk-form4_1718235813.xml · nonDerivative · entry 1

Schipper Brian · CIK 0001600116 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,238

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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

SEC source: 0001600641-24-000143 · wk-form4_1718235801.xml · derivative · entry 6

Lipman Alison K. · CIK 0001844468 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,291

Underlying: Common Stock · 2,097 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F6 · derivative.exercise_date: Fifty percent (50%) of the initial number of restricted stock units granted shall vest in 4 equal quarterly installments starting on June 8, 2022, provided the Reporting Person continues to have a service relationship with the Issuer at such time. Thereafter, fifty percent (50%) of the initial number of restricted stock units granted shall vest in 8 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

F6 · derivative.expiration_date: Fifty percent (50%) of the initial number of restricted stock units granted shall vest in 4 equal quarterly installments starting on June 8, 2022, provided the Reporting Person continues to have a service relationship with the Issuer at such time. Thereafter, fifty percent (50%) of the initial number of restricted stock units granted shall vest in 8 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

SEC source: 0001600641-24-000143 · wk-form4_1718235801.xml · derivative · entry 5

Lipman Alison K. · CIK 0001844468 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,357

Underlying: Common Stock · 4,193 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F5 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2022, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

F5 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2022, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

SEC source: 0001600641-24-000143 · wk-form4_1718235801.xml · derivative · entry 4

Lipman Alison K. · CIK 0001844468 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,590

Underlying: Common Stock · 8,370 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F4 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 12 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

F4 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 12 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

SEC source: 0001600641-24-000143 · wk-form4_1718235801.xml · derivative · entry 3

Lipman Alison K. · CIK 0001844468 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 84,975

Underlying: Common Stock · 7,725 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F3 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 12 equal quarterly installments starting on June 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

F3 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 12 equal quarterly installments starting on June 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

SEC source: 0001600641-24-000143 · wk-form4_1718235801.xml · nonDerivative · entry 2

Lipman Alison K. · CIK 0001844468 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 72,217

F2 · shares: These shares were retained by 1stdibs, Inc. ("1stdibs") via settlement on a net withholding basis in order to meet the tax withholding obligations of the reporting person in connection with the vesting of an installment of restricted stock units ("RSUs") granted to the reporting person on March 15, 2022, March 14, 2023, and March 15, 2024. None of these shares were sold in an open market transaction.

SEC source: 0001600641-24-000143 · wk-form4_1718235801.xml · nonDerivative · entry 1

Lipman Alison K. · CIK 0001844468 · Chief People Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,288

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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

SEC source: 0001600641-24-000142 · wk-form4_1718235788.xml · derivative · entry 6

Hood Nancy · CIK 0001661732 · Chief Marketing Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100,403

Underlying: Common Stock · 9,127 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F6 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 12 equal quarterly installments starting on June 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

F6 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 12 equal quarterly installments starting on June 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

SEC source: 0001600641-24-000142 · wk-form4_1718235788.xml · derivative · entry 5

Hood Nancy · CIK 0001661732 · Chief Marketing Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,513

Underlying: Common Stock · 8,787 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F5 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 12 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

F5 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 12 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

SEC source: 0001600641-24-000142 · wk-form4_1718235788.xml · derivative · entry 4

Hood Nancy · CIK 0001661732 · Chief Marketing Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,316

Underlying: Common Stock · 1,772 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F4 · derivative.exercise_date: Fifty percent (50%) of the initial number of restricted stock units granted shall vest in 4 equal quarterly installments starting on June 8, 2022, provided the Reporting Person continues to have a service relationship with the Issuer at such time. Thereafter, fifty percent (50%) of the initial number of restricted stock units granted shall vest in 8 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

F4 · derivative.expiration_date: Fifty percent (50%) of the initial number of restricted stock units granted shall vest in 4 equal quarterly installments starting on June 8, 2022, provided the Reporting Person continues to have a service relationship with the Issuer at such time. Thereafter, fifty percent (50%) of the initial number of restricted stock units granted shall vest in 8 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

SEC source: 0001600641-24-000142 · wk-form4_1718235788.xml · derivative · entry 3

Hood Nancy · CIK 0001661732 · Chief Marketing Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,807

Underlying: Common Stock · 3,543 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F3 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2022, provided the Reporting Person continues to have a service relationship with the Issuerat such time. The restricted stock units have no expiration date.

F3 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2022, provided the Reporting Person continues to have a service relationship with the Issuerat such time. The restricted stock units have no expiration date.

SEC source: 0001600641-24-000142 · wk-form4_1718235788.xml · nonDerivative · entry 2

Hood Nancy · CIK 0001661732 · Chief Marketing Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 86,624

F2 · shares: These shares were retained by 1stdibs, Inc. ("1stdibs") via settlement on a net withholding basis in order to meet the tax withholding obligations of the reporting person in connection with the vesting of an installment of restricted stock units ("RSUs") granted to the reporting person on March 15, 2022, March 14, 2023, and March 15, 2024. None of these shares were sold in an open market transaction.

SEC source: 0001600641-24-000142 · wk-form4_1718235788.xml · nonDerivative · entry 1

Hood Nancy · CIK 0001661732 · Chief Marketing Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 95,976

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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

SEC source: 0001600641-24-000141 · wk-form4_1718235776.xml · derivative · entry 4

Beauchamp Ryan · CIK 0001968904 · Chief Product Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 87,588

Underlying: Common Stock · 7,962 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F4 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 12 equal quarterly installments starting on June 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

F4 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 12 equal quarterly installments starting on June 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

SEC source: 0001600641-24-000141 · wk-form4_1718235776.xml · derivative · entry 3

Beauchamp Ryan · CIK 0001968904 · Chief Product Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 165,000

Underlying: Common Stock · 55,000 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F3 · derivative.exercise_date: Twenty-five percent (25%) of the restricted stock units shall vest on June 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. Thereafter, the remaining seventy-five percent (75%) of the restricted stock units shall vest in 12 equal quarterly installments starting on September 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

F3 · derivative.expiration_date: Twenty-five percent (25%) of the restricted stock units shall vest on June 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. Thereafter, the remaining seventy-five percent (75%) of the restricted stock units shall vest in 12 equal quarterly installments starting on September 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

SEC source: 0001600641-24-000141 · wk-form4_1718235776.xml · nonDerivative · entry 2

Beauchamp Ryan · CIK 0001968904 · Chief Product Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,263

F2 · shares: These shares were retained by 1stdibs, Inc. ("1stdibs") via settlement on a net withholding basis in order to meet the tax withholding obligations of the reporting person in connection with the vesting of an installment of restricted stock units ("RSUs") granted to the reporting person on June 14, 2023 and March 15, 2024. None of these shares were sold in an open market transaction.

SEC source: 0001600641-24-000141 · wk-form4_1718235776.xml · nonDerivative · entry 1

Beauchamp Ryan · CIK 0001968904 · Chief Product Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,962

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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

SEC source: 0001600641-24-000137 · wk-form4_1718235727.xml · derivative · entry 6

Goins Melanie F · CIK 0001775877 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 98,890

Underlying: Common Stock · 8,990 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F6 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 12 equal quarterly installments starting on June 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

F6 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 12 equal quarterly installments starting on June 8, 2024, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

SEC source: 0001600641-24-000137 · wk-form4_1718235727.xml · derivative · entry 5

Goins Melanie F · CIK 0001775877 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,819

Underlying: Common Stock · 8,831 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F5 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 12 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

F5 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 12 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

SEC source: 0001600641-24-000137 · wk-form4_1718235727.xml · derivative · entry 4

Goins Melanie F · CIK 0001775877 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,997

Underlying: Common Stock · 2,666 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F4 · derivative.exercise_date: Fifty percent (50%) of the initial number of restricted stock units granted shall vest in 4 equal quarterly installments starting on June 8, 2022, provided the Reporting Person continues to have a service relationship with the Issuer at such time. Thereafter, fifty percent (50%) of the initial number of restricted stock units granted shall vest in 8 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

F4 · derivative.expiration_date: Fifty percent (50%) of the initial number of restricted stock units granted shall vest in 4 equal quarterly installments starting on June 8, 2022, provided the Reporting Person continues to have a service relationship with the Issuer at such time. Thereafter, fifty percent (50%) of the initial number of restricted stock units granted shall vest in 8 equal quarterly installments starting on June 8, 2023, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

SEC source: 0001600641-24-000137 · wk-form4_1718235727.xml · derivative · entry 3

Goins Melanie F · CIK 0001775877 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,319

Underlying: Common Stock · 5,331 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F3 · derivative.exercise_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2022, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

F3 · derivative.expiration_date: The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2022, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

SEC source: 0001600641-24-000137 · wk-form4_1718235727.xml · nonDerivative · entry 2

Goins Melanie F · CIK 0001775877 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 94,928

F2 · shares: These shares were retained by 1stdibs, Inc. ("1stdibs") via settlement on a net withholding basis in order to meet the tax withholding obligations of the reporting person in connection with the vesting of an installment of restricted stock units ("RSUs") granted to the reporting person on March 15, 2022, March 14, 2023, and March 15, 2024. None of these shares were sold in an open market transaction.

SEC source: 0001600641-24-000137 · wk-form4_1718235727.xml · nonDerivative · entry 1

Goins Melanie F · CIK 0001775877 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 102,507

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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

SEC source: 0000899140-24-000647 · form4.xml · nonDerivative · entry 4

Insight Holdings Group, LLC · CIK 0001305473 · 10% owner

Insight Venture Associates IX, L.P. · CIK 0001745334 · 10% owner

Insight Venture Associates IX, Ltd. · CIK 0001745335 · 10% owner

Insight Venture Partners (Cayman) IX, L.P. · CIK 0001629399 · 10% owner

Insight Venture Partners (Delaware) IX, L.P. · CIK 0001629396 · 10% owner

Insight Venture Partners IX (Co-Investors), L.P. · CIK 0001629402 · 10% owner

Insight Venture Partners IX, L.P. · CIK 0001629398 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 0

F5 · price: See Exhibit 99.1

F4 · ownership.nature: See Exhibit 99.1

SEC source: 0000899140-24-000647 · form4.xml · nonDerivative · entry 3

Insight Holdings Group, LLC · CIK 0001305473 · 10% owner

Insight Venture Associates IX, L.P. · CIK 0001745334 · 10% owner

Insight Venture Associates IX, Ltd. · CIK 0001745335 · 10% owner

Insight Venture Partners (Cayman) IX, L.P. · CIK 0001629399 · 10% owner

Insight Venture Partners (Delaware) IX, L.P. · CIK 0001629396 · 10% owner

Insight Venture Partners IX (Co-Investors), L.P. · CIK 0001629402 · 10% owner

Insight Venture Partners IX, L.P. · CIK 0001629398 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 0

F5 · price: See Exhibit 99.1

F3 · ownership.nature: See Exhibit 99.1

SEC source: 0000899140-24-000647 · form4.xml · nonDerivative · entry 2

Insight Holdings Group, LLC · CIK 0001305473 · 10% owner

Insight Venture Associates IX, L.P. · CIK 0001745334 · 10% owner

Insight Venture Associates IX, Ltd. · CIK 0001745335 · 10% owner

Insight Venture Partners (Cayman) IX, L.P. · CIK 0001629399 · 10% owner

Insight Venture Partners (Delaware) IX, L.P. · CIK 0001629396 · 10% owner

Insight Venture Partners IX (Co-Investors), L.P. · CIK 0001629402 · 10% owner

Insight Venture Partners IX, L.P. · CIK 0001629398 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 0

F5 · price: See Exhibit 99.1

F2 · ownership.nature: See Exhibit 99.1

SEC source: 0000899140-24-000647 · form4.xml · nonDerivative · entry 1

Insight Holdings Group, LLC · CIK 0001305473 · 10% owner

Insight Venture Associates IX, L.P. · CIK 0001745334 · 10% owner

Insight Venture Associates IX, Ltd. · CIK 0001745335 · 10% owner

Insight Venture Partners (Cayman) IX, L.P. · CIK 0001629399 · 10% owner

Insight Venture Partners (Delaware) IX, L.P. · CIK 0001629396 · 10% owner

Insight Venture Partners IX (Co-Investors), L.P. · CIK 0001629402 · 10% owner

Insight Venture Partners IX, L.P. · CIK 0001629398 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 0

F5 · price: See Exhibit 99.1

F1 · ownership.nature: See Exhibit 99.1

SEC source: 0000899140-24-000631 · form4.xml · nonDerivative · entry 4

Insight Holdings Group, LLC · CIK 0001305473 · 10% owner

Insight Venture Associates IX, L.P. · CIK 0001745334 · 10% owner

Insight Venture Associates IX, Ltd. · CIK 0001745335 · 10% owner

Insight Venture Partners (Cayman) IX, L.P. · CIK 0001629399 · 10% owner

Insight Venture Partners (Delaware) IX, L.P. · CIK 0001629396 · 10% owner

Insight Venture Partners IX (Co-Investors), L.P. · CIK 0001629402 · 10% owner

Insight Venture Partners IX, L.P. · CIK 0001629398 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 48,984

F5 · price: See Exhibit 99.1

F4 · ownership.nature: See Exhibit 99.1

SEC source: 0000899140-24-000631 · form4.xml · nonDerivative · entry 3

Insight Holdings Group, LLC · CIK 0001305473 · 10% owner

Insight Venture Associates IX, L.P. · CIK 0001745334 · 10% owner

Insight Venture Associates IX, Ltd. · CIK 0001745335 · 10% owner

Insight Venture Partners (Cayman) IX, L.P. · CIK 0001629399 · 10% owner

Insight Venture Partners (Delaware) IX, L.P. · CIK 0001629396 · 10% owner

Insight Venture Partners IX (Co-Investors), L.P. · CIK 0001629402 · 10% owner

Insight Venture Partners IX, L.P. · CIK 0001629398 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 260,009

F5 · price: See Exhibit 99.1

F3 · ownership.nature: See Exhibit 99.1

SEC source: 0000899140-24-000631 · form4.xml · nonDerivative · entry 2

Insight Holdings Group, LLC · CIK 0001305473 · 10% owner

Insight Venture Associates IX, L.P. · CIK 0001745334 · 10% owner

Insight Venture Associates IX, Ltd. · CIK 0001745335 · 10% owner

Insight Venture Partners (Cayman) IX, L.P. · CIK 0001629399 · 10% owner

Insight Venture Partners (Delaware) IX, L.P. · CIK 0001629396 · 10% owner

Insight Venture Partners IX (Co-Investors), L.P. · CIK 0001629402 · 10% owner

Insight Venture Partners IX, L.P. · CIK 0001629398 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 1,219,371

F5 · price: See Exhibit 99.1

F2 · ownership.nature: See Exhibit 99.1

SEC source: 0000899140-24-000631 · form4.xml · nonDerivative · entry 1

Insight Holdings Group, LLC · CIK 0001305473 · 10% owner

Insight Venture Associates IX, L.P. · CIK 0001745334 · 10% owner

Insight Venture Associates IX, Ltd. · CIK 0001745335 · 10% owner

Insight Venture Partners (Cayman) IX, L.P. · CIK 0001629399 · 10% owner

Insight Venture Partners (Delaware) IX, L.P. · CIK 0001629396 · 10% owner

Insight Venture Partners IX (Co-Investors), L.P. · CIK 0001629402 · 10% owner

Insight Venture Partners IX, L.P. · CIK 0001629398 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 2,454,082

F5 · price: See Exhibit 99.1

F1 · ownership.nature: See Exhibit 99.1