Sec Form 4 Filing - SPURLOCK STEVEN M @ 1stdibs.com, Inc. - 2021-06-14

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

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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person SPURLOCK STEVEN M 2. Issuer Name and Ticker or Trading Symbol 1stdibs.com, Inc. [ DIBS] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 2965 WOODSIDE ROAD 3. Date of Earliest Transaction (MM/DD/YY) 06/14/2021 (Street) WOODSIDE, CA94062 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 06/14/2021 C 7,220,666 A 7,220,666 I See footnotes ( 2 ) ( 3 ) ( 4 ) Common Stock 06/14/2021 C 87,166 A 87,166 I See footnotes ( 2 ) ( 3 ) ( 6 )

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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 of Derivative Security: 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 Series A Preferred Stock ( 1 ) 06/14/2021 C 7,220,666 ( 1 ) ( 1 ) Common Stock 7,220,666 $ 0 0 I See footnotes ( 2 ) ( 3 ) ( 4 ) Series B Preferred Stock ( 5 ) 06/14/2021 C 87,166 ( 5 ) ( 5 ) Common Stock 87,166 $ 0 0 I See footnotes ( 2 ) ( 3 ) ( 6 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other SPURLOCK STEVEN M 2965 WOODSIDE ROAD WOODSIDE, CA94062 X BALKANSKI ALEXANDRE 2965 WOODSIDE ROAD WOODSIDE, CA94062 X KAGLE ROBERT 2965 WOODSIDE ROAD WOODSIDE, CA94062 X DUNLEVIE BRUCE 2965 WOODSIDE ROAD WOODSIDE, CA94062 X FENTON PETER H 2965 WOODSIDE ROAD WOODSIDE, CA94062 X GURLEY J WILLIAM 2965 WOODSIDE ROAD WOODSIDE, CA94062 X HARVEY KEVIN 2965 WOODSIDE ROAD WOODSIDE, CA94062 X LASKY MITCHELL 2965 WOODSIDE ROAD WOODSIDE, CA94062 X Signatures By: /s/ An-Yen Hu, by power of attorney for Steven M. Spurlock 06/16/2021 Signature of Reporting Person Date By: /s/ An-Yen Hu, by power of attorney for Alexandre Balkanski 06/16/2021 Signature of Reporting Person Date By: /s/ An-Yen Hu, by power of attorney for Robert C. Kagle 06/16/2021 Signature of Reporting Person Date By: /s/ An-Yen Hu, by power of attorney for Bruce W. Dunlevie 06/16/2021 Signature of Reporting Person Date By: /s/ An-Yen Hu, by power of attorney for Peter H. Fenton 06/16/2021 Signature of Reporting Person Date By: /s/ An-Yen Hu, by power of attorney for J. William Gurley 06/16/2021 Signature of Reporting Person Date By: /s/ An-Yen Hu, by power of attorney for Kevin R. Harvey 06/16/2021 Signature of Reporting Person Date By: /s/ An-Yen Hu, by power of attorney for Mitchell H. Lasky 06/16/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The Issuer's Series A Preferred Stock converted into Common Stock on a 1-for-1 basis immediately prior to the closing of the Issuer's initial public offering (the "IPO"). ( 2 )The shares are held directly by (i) Benchmark Capital Partners V, L.P. ("BCP V") for itself and as nominee for Benchmark Founders' Fund V, L.P. ("BFF V"), Benchmark Founders' Fund V-A, L.P. ("BFF V-A"), Benchmark Founders' Fund V-B, L.P. ("BFF V-B") and related individuals and (ii) Benchmark Capital Partners VII, L.P. ("BCP VII") for itself and as nominee for Benchmark Founders' Fund VII, L.P. ("BFF VII") and Benchmark Founders' Fund VII-B, L.P. ("BFF VII-B"). Benchmark Capital Management Co. V, L.L.C. ("BCMC V"), the general partner of BCP V, BFF V, BFF V-A and BFF V-B, and Benchmark Capital Management Co. VII, L.L.C. ("BCMC VII"), the general partner for BCP VII, BFF VII and BFF VII-B may be deemed to have sole voting and dispositive power over the securities. ( 3 )(Continued from Footnote 2) Alexandre Balkanski, Robert C. Kagle, Bruce W. Dunlevie, Peter H. Fenton, J. William Gurley, Kevin R. Harvey, Mitchell H. Lasky and Steven M. Spurlock are the managing members of BCMC V, and each of them may be deemed to share voting and dispositive power over the securities held by such entities. Matthew R. Cohler, a member of the Issuer's board of directors, Bruce W. Dunlevie, Peter H. Fenton, J. William Gurley, Kevin R. Harvey, Mitchell H. Lasky and Steven M. Spurlock are the managing members of BCMC VII, and each of them may be deemed to share voting and dispositive power over the securities held by such entities. Each such person and entity disclaims the existence of a "group" and disclaims beneficial ownership of the securities, except to the extent of such person's or entity's pecuniary interest in such securities. ( 4 )Consists of 3,610,333 shares held of record by BCP V and 3,610,333 shares held of record by BCP VII. ( 5 )The Issuer's Series B Preferred Stock converted into Common Stock on a 1-for-1 basis immediately prior to the closing of the Issuer's IPO. ( 6 )Consists of 43,583 shares held of record by BCP V and 43,583 shares held of record by BCP VII.

Remarks: This report is one of three reports, each on a separate Form 3, but relating to the same holdings being filed by entities affiliated with Benchmark and their applicable members. The filing of this statement shall not be deemed an admission that the reporting person is, for purposes of Section 16 of the Exchange Act or otherwise, the beneficial owner of any equity securities covered by this statement.

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).

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