Thomas J. Etergino - 09 Jun 2025 Form 4 Insider Report for 1stdibs.com, Inc. (DIBS)

Role: Chief Financial Officer
Signature: /s/ Melanie Goins, Attorney-In-Fact for Thomas J Etergino
Issuer symbol: DIBS
Transactions as of: 09 Jun 2025
Net transactions value: -$56,383
Form type: 4
Filing time: 11 Jun 2025, 21:34:30 UTC
Previous filing: 17 Mar 2025
Next filing: 10 Sep 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Etergino Thomas J	Chief Financial Officer	300 PARK AVENUE SOUTH, 10TH FLOOR, NEW YORK	/s/ Melanie Goins, Attorney-In-Fact for Thomas J Etergino	11 Jun 2025	0001336088

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	DIBS	Common Stock	Options Exercise		+16,563	+9.6%		189,979	09 Jun 2025	Direct	F1
transaction	DIBS	Common Stock	Options Exercise		+14,103	+7.4%		204,082	09 Jun 2025	Direct	F1
transaction	DIBS	Common Stock	Options Exercise		+11,175	+5.5%		215,257	09 Jun 2025	Direct	F1
transaction	DIBS	Common Stock	Options Exercise		+11,171	+5.2%		226,428	09 Jun 2025	Direct	F1
transaction	DIBS	Common Stock	Tax liability	$56,383	-19,113	-8.4%	$2.95	207,315	09 Jun 2025	Direct	F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	DIBS	Restricted Stock Units	Options Exercise	$0	-16,563	-20%	$0.000000	66,250	09 Jun 2025	Common Stock	16,563		Direct	F1, F3
transaction	DIBS	Restricted Stock Units	Options Exercise	$0	-14,103	-25%	$0.000000	42,312	09 Jun 2025	Common Stock	14,103		Direct	F1, F4
transaction	DIBS	Restricted Stock Units	Options Exercise	$0	-11,175	-8.3%	$0.000000	122,925	09 Jun 2025	Common Stock	11,175		Direct	F1, F5
transaction	DIBS	Restricted Stock Units	Options Exercise	$0	-11,171	-6.2%	$0.000000	167,579	09 Jun 2025	Common Stock	11,171		Direct	F1, F6

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
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 granted to the reporting person on June 2, 2022, March 14, 2023, and March 15, 2025. None of these shares were sold in an open market transaction.
F3	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.
F4	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	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.
F6	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.