1stdibs.com CFO granted 145,500 RSUs

Etergino Thomas J reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Etergino Thomas J reported acquisition or exercise transactions in this Form 4 filing.

1stdibs.com, Inc. Chief Financial Officer Thomas J. Etergino received a grant of 145,500 restricted stock units, each representing one share of common stock. This is a compensation-related award, not an open-market stock purchase or sale.

The RSUs will vest in 12 equal quarterly installments beginning on June 8, 2026, as long as he continues his service relationship with the company. Following this grant, his reported direct holdings of restricted stock units total 145,500 units.

Insider Trade Summary

Grant/Award: 145,500 shares

Grant/Award 1 txn

Insider Etergino Thomas J

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	145,500	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 145,500 contracts (Direct)

Footnotes (2)

1. F1. Each restricted stock unit represents a contingent right to receive one share of Issuer common stock.
2. 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.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did 1stdibs.com (DIBS) report in this Form 4 filing?

1stdibs.com reported a grant of 145,500 restricted stock units to its Chief Financial Officer, Thomas J. Etergino. The award is part of his compensation and represents a contingent right to receive the company’s common stock, rather than an open-market stock purchase.

How many RSUs did the 1stdibs.com (DIBS) CFO receive?

The Chief Financial Officer received 145,500 restricted stock units. Each unit represents a right to receive one share of 1stdibs.com common stock. These units were granted at no cash purchase price as an equity compensation award tied to ongoing service.

When do the newly granted 1stdibs.com (DIBS) RSUs vest?

The RSUs begin vesting on June 8, 2026. They vest in 12 equal quarterly installments, so portions of the award will settle over multiple years as long as the executive maintains a service relationship with 1stdibs.com throughout the vesting schedule.

Is the 1stdibs.com (DIBS) Form 4 transaction a stock purchase or sale?

No, this Form 4 reflects a grant of restricted stock units, not a market trade. The CFO did not buy or sell shares for cash; instead, he received an equity award that will convert into common stock over time if service conditions are met.

What are restricted stock units in the 1stdibs.com (DIBS) filing?

Restricted stock units are promises to deliver shares in the future if conditions are satisfied. In this case, each RSU equals one share of 1stdibs.com common stock, and the units vest over 12 quarterly installments starting June 8, 2026, contingent on continued service.

How many RSUs does the 1stdibs.com (DIBS) CFO hold after this grant?

After this grant, the CFO is reported to hold 145,500 restricted stock units directly. This entire reported position comes from the new equity award, which will convert into common shares only as the units vest according to the defined schedule.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 03/17/2026 - 07:56 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Etergino Thomas J

(Last) (First) (Middle)

300 PARK AVENUE SOUTH

10TH FLOOR

(Street)

NEW YORK NY 10010

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
1stdibs.com, Inc. [ DIBS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Financial Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/13/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	(1)	03/13/2026		A		145,500		(2)	(2)	Common Stock	145,500	$0	145,500	D

Explanation of Responses:

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

2. 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.

Remarks:

	/s/ Melanie Goins, Attorney-In-Fact for Thomas J Etergino	03/17/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.