1stdibs.com, Inc. (DIBS) CFO nets shares after RSU vesting and tax withholding

Rhea-AI Filing Summary

1stdibs.com, Inc. Chief Financial Officer Thomas J. Etergino reported routine equity compensation activity. On June 8, 2026, he exercised restricted stock units into a total of 51,035 shares of common stock and used shares instead of cash to cover taxes.

The company retained 18,400 shares at a price of $4.01 per share via net share withholding to satisfy his tax withholding obligations, and none of these shares were sold in open-market transactions. Following the tax-withholding disposition, he held 333,420 common shares directly.

The footnotes describe multiple RSU grants from 2022 through 2026 that vest in quarterly installments, conditioned on his continued service, with each RSU representing the right to receive one share of common stock and having no expiration date.

Insights

Insider transactions analyst

CFO’s Form 4 shows routine RSU vesting, share settlement for taxes, and no open-market selling.

Thomas J. Etergino, CFO of 1stdibs.com, Inc., exercised restricted stock units on June 8, 2026, receiving 51,035 shares of common stock. These derivative exercises are compensation-related events, not open-market purchases, and reflect previously granted equity awards now vesting into common shares.

To meet tax withholding obligations from these vestings, the company retained 18,400 shares at $4.01 per share on a net withholding basis. Footnotes explicitly state that none of these shares were sold in open-market transactions, so there is no discretionary market sale signal here.

The filing shows he held 333,420 common shares directly after the tax-withholding disposition, with no remaining derivative positions listed. RSU grants from 2022 through 2026 vest in scheduled quarterly installments, subject to continued service. Overall, this points to standard executive compensation mechanics rather than a thesis-changing insider trade.

Insider Trade Summary

51,035 shares exercised/converted

Mixed 9 txns

Insider Etergino Thomas J

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	11,175	$0.00	--
Exercise	Restricted Stock Units	11,172	$0.00	--
Exercise	Restricted Stock Units	12,125	$0.00	--
Exercise	Restricted Stock Units	16,563	$0.00	--
Exercise	Common Stock	11,175	$0.00	--
Exercise	Common Stock	11,172	$0.00	--
Exercise	Common Stock	12,125	$0.00	--
Exercise	Common Stock	16,563	$0.00	--
Tax Withholding	Common Stock	18,400	$4.01	$74K

Holdings After Transaction: Restricted Stock Units — 78,225 shares (Direct, null); Common Stock — 311,960 shares (Direct, null)

Footnotes (1)

1. Each restricted stock unit represents a contingent right to receive one share of Issuer common stock. 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 June 2, 2022, March 14, 2023, March 15, 2025, and March 16, 2026. None of these shares were sold in an open market transaction. 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. 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. 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. 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.

Key Figures

RSU shares exercised: 51,035 shares Shares withheld for taxes: 18,400 shares Withholding share price: $4.01 per share +3 more

6 metrics

RSU shares exercised 51,035 shares Total derivative exercises (M code) on June 8, 2026

Shares withheld for taxes 18,400 shares Net share withholding to satisfy tax obligations

Withholding share price $4.01 per share Value used for tax-withholding disposition

Shares held after disposition 333,420 shares Direct common stock holding after tax withholding

Single RSU tranche size 16,563 RSUs One RSU grant converted into common stock

Additional RSU tranches 12,125; 11,172; 11,175 RSUs Three other RSU grants converted into common stock

Key Terms

Restricted Stock Units, net withholding basis, tax withholding obligations, derivative security, +1 more

5 terms

Restricted Stock Units financial

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

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

net withholding basis financial

"These shares were retained by Issuer via settlement on a net withholding basis in order to meet the tax withholding obligations..."

tax withholding obligations financial

"in order to meet the tax withholding obligations of the reporting person in connection with the vesting of an installment of restricted stock units"

derivative security financial

"transaction_code_description: Exercise or conversion of derivative security"

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

service relationship financial

"provided the Reporting Person continues to have a service relationship with the Issuer at such time."

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Form 4 Insider Transactions: What Each Field Means →

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 NEW YORK 10010

(City) (State) (Zip)

UNITED STATES

(Country)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/08/2026

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

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

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

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
Common Stock	06/08/2026		M		11,175	A	(1)	311,960	D
Common Stock	06/08/2026		M		11,172	A	(1)	323,132	D
Common Stock	06/08/2026		M		12,125	A	(1)	335,257	D
Common Stock	06/08/2026		M		16,563	A	(1)	351,820	D
Common Stock	06/08/2026		F		18,400	D	$4.01(2)	333,420	D

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)	06/08/2026		M			11,175	(3)	(3)	Common Stock	11,175	$0	78,225	D
Restricted Stock Units	(1)	06/08/2026		M			11,172	(4)	(4)	Common Stock	11,172	$0	122,891	D
Restricted Stock Units	(1)	06/08/2026		M			12,125	(5)	(5)	Common Stock	12,125	$0	133,375	D
Restricted Stock Units	(1)	06/08/2026		M			16,563	(6)	(6)	Common Stock	16,563	$0	0	D

Explanation of Responses:

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

2. 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 June 2, 2022, March 14, 2023, March 15, 2025, and March 16, 2026. None of these shares were sold in an open market transaction.

3. 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.

4. 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.

5. 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.

6. 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.

Remarks:

	/s/ Melanie Goins, Attorney-In-Fact for Thomas J Etergino	06/10/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transactions did 1stdibs (DIBS) report for its CFO?

The CFO of 1stdibs reported routine equity compensation activity, exercising restricted stock units into 51,035 common shares on June 8, 2026. These were scheduled RSU vestings converting into stock, not open‑market purchases, reflecting previously granted awards becoming shares.

Did the 1stdibs (DIBS) CFO sell any shares in the open market?

No open‑market sales were reported. The company retained 18,400 shares at $4.01 per share solely to satisfy the CFO’s tax withholding obligations on vested RSUs, and the footnotes clearly state that none of these shares were sold in open‑market transactions.

How many 1stdibs (DIBS) shares does the CFO hold after these transactions?

After the tax‑withholding disposition, the CFO held 333,420 shares of 1stdibs common stock directly. This figure reflects his position following the June 8, 2026 equity compensation events reported in the Form 4, based on the non‑derivative holdings table totals.

What is the nature of the RSUs reported by the 1stdibs (DIBS) CFO?

Each restricted stock unit represents a right to receive one share of 1stdibs common stock. The awards vest in scheduled quarterly installments over multi‑year periods, contingent on the CFO maintaining a service relationship with the company, and the RSUs themselves have no expiration date.

At what price were 1stdibs (DIBS) shares used to cover the CFO’s taxes?

Shares retained to cover taxes were valued at $4.01 per share. The company withheld 18,400 shares on a net basis to satisfy the CFO’s tax obligations related to RSU vesting, as described in the footnotes to the Form 4 filing.

Which RSU grant dates are involved in the 1stdibs (DIBS) CFO’s vesting schedule?

RSU vesting relates to grants dated June 2, 2022, March 14, 2023, March 15, 2025, and March 16, 2026. These awards vest in equal quarterly installments beginning June 8, 2023, June 8, 2024, June 8, 2025, or June 8, 2026, depending on the specific grant.