1stdibs.com, Inc. — Director's Dealing 2026

Mar 18, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 1stdibs.com, Inc. (DIBS)
CIK: 0001600641
Period of Report: 2026-03-16

Reporting Person: ROSENBLATT DAVID S (Director, Chief Executive Officer)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-03-16	Restricted Stock Units	$	A	500000	Acquired		Common Stock (500000)	Direct

Footnotes

F1: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F2: The initial number of restricted stock units granted shall vest in 12 equal quarterly installments starting on June 8, 2026, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.