Melanie F. Goins - 09 Mar 2026 Form 4 Insider Report for 1stdibs.com, Inc. (DIBS)

Role
General Counsel and CPO
Signature
/s/ Melanie Goins
Issuer symbol
DIBS
Transactions as of
09 Mar 2026
Net transactions value
-$82,002
Form type
4
Filing time
11 Mar 2026, 20:05:59 UTC
Previous filing
10 Dec 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Goins Melanie F General Counsel and CPO 300 PARK AVENUE SOUTH, 10TH FLOOR, NEW YORK /s/ Melanie Goins 11 Mar 2026 0001775877

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction DIBS Common Stock Options Exercise +5,332 +2.5% 218,400 09 Mar 2026 Direct F1
transaction DIBS Common Stock Options Exercise +8,990 +4.1% 227,390 09 Mar 2026 Direct F1
transaction DIBS Common Stock Options Exercise +10,041 +4.4% 237,431 09 Mar 2026 Direct F1
transaction DIBS Common Stock Options Exercise +8,832 +3.7% 246,263 09 Mar 2026 Direct F1
transaction DIBS Common Stock Tax liability -9,745 -4% 236,518 09 Mar 2026 Direct F2
transaction DIBS Common Stock Sale $67,364 -12,248 -5.2% $5.50 224,270 09 Mar 2026 Direct F3, F4
transaction DIBS Common Stock Sale $14,440 -2,616 -1.2% $5.52 221,654 10 Mar 2026 Direct F3, F5
transaction DIBS Common Stock Sale $198 -36 -0.02% $5.50 221,618 11 Mar 2026 Direct F3

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 -5,332 -100% $0.000000* 0 09 Mar 2026 Common Stock 5,332 Direct F1, F6
transaction DIBS Restricted Stock Units Options Exercise -8,832 -100% $0.000000* 0 09 Mar 2026 Common Stock 8,832 Direct F1, F7
transaction DIBS Restricted Stock Units Options Exercise -8,990 -20% $0.000000* 35,960 09 Mar 2026 Common Stock 8,990 Direct F1, F8
transaction DIBS Restricted Stock Units Options Exercise -10,041 -11% $0.000000* 80,334 09 Mar 2026 Common Stock 10,041 Direct F1, F9
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

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).

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 ("RSUs") granted to the reporting person on March 15, 2022, March 14, 2023, March 15, 2024 and March 13, 2025. None of these shares were sold in an open market transaction.
F3 This transaction was effected pursuant to a Rule 10b5-1 trading plan, adopted December 9, 2025.
F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.50 to $5.52, inclusive. The reporting person undertakes to provide to Issuer, any security holder of Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F5 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.50 to $5.56, inclusive. The reporting person undertakes to provide to Issuer, any security holder of Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F6 The initial number of restricted stock units granted shall vest in 16 equal quarterly installments starting on June 8, 2022, provided the Reporting Person continues to have a service relationship with the Issuer at such time. The restricted stock units have no expiration date.
F7 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.
F8 The initial number of restricted stock units granted shall vest in 12 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.
F9 The initial number of restricted stock units granted shall vest in 12 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.