1stdibs.com (DIBS) CEO awarded 500,000 RSUs in equity grant

Rhea-AI Filing Summary

ROSENBLATT DAVID S reported acquisition or exercise transactions in this Form 4 filing.

1stdibs.com, Inc. reported that Chief Executive Officer David S. Rosenblatt received a grant of 500,000 restricted stock units (RSUs), each representing a contingent right to one share of common stock. Following this award, he holds 500,000 RSUs directly.

The RSUs are designed as long-term compensation and vest in 12 equal quarterly installments starting on June 8, 2026, as long as he continues his service relationship with the company. The RSUs have no expiration date, reinforcing long-term alignment between the CEO and shareholders.

Insights

Executive compensation analyst

CEO receives large time-based RSU grant, aligning pay with future performance.

The CEO of 1stdibs.com, Inc., David S. Rosenblatt, was granted 500,000 RSUs as equity compensation. RSUs are promises of future shares that only convert if vesting conditions are met, so there is no immediate cash transaction.

These units vest in 12 equal quarterly installments beginning on June 8, 2026, contingent on his continued service. This structure encourages leadership stability and long-term focus, since value to the CEO depends on both remaining with the company and the future share price.

There are no remaining derivative positions disclosed beyond this grant. Future company filings can show how much of this award ultimately vests, which will reflect both tenure and long-term equity performance.

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

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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^*

ROSENBLATT DAVID S

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
03/16/2026

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)	03/16/2026		A		500,000		(2)	(2)	Common Stock	500,000	$0	500,000	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 David S. Rosenblatt	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.

FAQ

What did 1stdibs.com (DIBS) CEO David Rosenblatt report in this Form 4?

David S. Rosenblatt reported receiving a grant of 500,000 restricted stock units (RSUs) of 1stdibs.com common stock. This is an equity compensation award, not an open-market stock purchase or sale, and represents potential future shares if vesting conditions are met.

How many restricted stock units were granted to the 1stdibs.com (DIBS) CEO?

The CEO was granted 500,000 restricted stock units. Each RSU represents a contingent right to receive one share of 1stdibs.com common stock, so the award corresponds to 500,000 potential future shares if the vesting schedule and service conditions are fully satisfied.

What is the vesting schedule for the 1stdibs.com (DIBS) CEO’s 500,000 RSUs?

The 500,000 RSUs vest in 12 equal quarterly installments starting on June 8, 2026. Vesting requires that David S. Rosenblatt continue his service relationship with 1stdibs.com, so the award is spread over three years to promote leadership retention.

Do the 1stdibs.com (DIBS) CEO’s RSUs have an expiration date?

The filing states that these restricted stock units have no expiration date. While they do not expire on a fixed calendar date, they only convert into shares as they vest, provided the CEO continues his service relationship with 1stdibs.com through each vesting date.

Did the 1stdibs.com (DIBS) CEO buy or sell shares in the market in this Form 4?

No market buy or sell occurred in this Form 4. Instead, David S. Rosenblatt acquired 500,000 RSUs as a grant of equity compensation. The transaction code is an award, not an open-market purchase or sale of existing shares.

How many RSUs does the 1stdibs.com (DIBS) CEO hold after this reported transaction?

After this reported transaction, the CEO holds 500,000 restricted stock units directly. This figure reflects the total RSUs reported following the grant in the filing and represents his current RSU position linked to future common stock.