ROSENBLATT DAVID S 4

4 · 1stdibs.com, Inc. · Filed Dec 10, 2025

Form 4

Period: 2025-12-08

DirectorChief Executive Officer

Transactions

Exercise/Conversion
Common Stock
2025-12-08+37,500→ 1,954,993 total
Exercise/Conversion
Common Stock
2025-12-08+47,500→ 2,002,493 total
Sale
Common Stock
2025-12-08$5.96/sh−73,207$436,314→ 1,976,786 total
Exercise/Conversion
Restricted Stock Units
2025-12-08−37,500→ 187,500 total
→ Common Stock (37,500 underlying)
Exercise/Conversion
Restricted Stock Units
2025-12-08−47,500→ 427,500 total
→ Common Stock (47,500 underlying)

Holdings

Footnotes (5)

[F1]Each restricted stock unit represents a contingent right to receive one share of Issuer common stock.
[F2]These shares were retained by Issuer 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, March 8, 2024 and March 14, 2025. None of these shares were sold in an open market transaction.
[F3]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.
[F4]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]The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2025, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.

Documents

1 file