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1stdibs.com, Inc.

DIBS
Exchange
Nasdaq
Industry
Retail-Catalog & Mail-Order Houses
SEC CIK
0001600641

No open-market purchases or sales by 1stdibs.com, Inc. insiders were filed in the last 90 days; 86 institutions reported holding it in 13F filings for Q2 2026, worth $64.4M in total; no superinvestor holds it.

Holders of 5% or more of DIBS

Holders whose latest Schedule 13D or 13G filing reports 5% or more of 1stdibs.com, Inc., largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of DIBS
HolderLatest formStakeChangeFirst filedLatest filingFiling
Benchmark Capital Partners V L P13G/A20.00%7.31M shares–Feb 14, 20224 filingsFeb 14, 2025SEC
Rosenblatt David S13G/A10.50%3.70M shares+0.70 ppfrom 9.80%Feb 14, 20229 filingsAug 14, 2026SEC
Beck Mack & Oliver LLC13G8.30%3.30M sharesNewNov 7, 20241 filingNov 7, 2024SEC
Philotimo Fund, LP13G5.30%1.94M sharesNewFeb 6, 20261 filingFeb 6, 2026SEC
Catsimatidis John A. Jr13D5.10%1.87M sharesNewNov 21, 20251 filingNov 21, 2025SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

23 Schedule 13D and 13G filings on 1stdibs.com, Inc., newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on DIBS
Filed (ET)FilerFormStakeChangeEvent dateFiling
Aug 14, 20269:35 AM ETRosenblatt David Sand 2 others13G/A10.50%3.70M shares+0.70 ppfrom 9.80%Jun 30, 2026SEC
May 15, 202611:42 AM ETRosenblatt David Sand 2 others13G/A9.80%3.62M shares+0.50 ppfrom 9.30%Mar 31, 2026SEC
Feb 13, 20262:09 PM ETRosenblatt David Sand 2 others13G/A9.30%3.54M shares−1.10 ppfrom 10.40%Dec 31, 2025SEC
Feb 6, 20263:48 PM ETPhilotimo Fund, LPand 3 others13G5.30%1.94M sharesNewFeb 2, 2026SEC
Jan 15, 20261:11 PM ETSofina Capital S.A.and 1 other13G0.00%0 sharesNewBelow 5%Nov 14, 2025SEC
Nov 21, 20259:50 PM ETCatsimatidis John A. Jrand 4 others13D5.10%1.87M sharesNewNov 14, 2025SEC
Nov 14, 20255:54 PM ETRosenblatt David Sand 2 others13G/A10.40%4.02M shares+0.20 ppfrom 10.20%Sep 30, 2025SEC
Aug 14, 20255:21 PM ETRosenblatt David Sand 2 others13G/A10.20%3.90M shares+1.10 ppfrom 9.10%Jun 30, 2025SEC
Feb 14, 20254:15 PM ETBenchmark Capital Partners V L Pand 16 others13G/A20.00%7.31M shares–Dec 31, 2024SEC
Nov 14, 20248:19 PM ETRosenblatt David Sand 2 others13G/A9.10%3.52M shares–Sep 30, 2024SEC
Nov 7, 202412:43 PM ETBeck Mack & Oliver LLC13G8.30%3.30M sharesNewNov 1, 2024SEC
Jun 6, 2024Insight Holdings Group, LLC13G/AOld format–––SEC
Feb 14, 2024Rosenblatt David S13G/AOld format–––SEC
Feb 14, 2024Foxhaven Asset Management, LP13G/AOld format–––SEC
Feb 13, 2024Benchmark Capital Partners V L P13G/AOld format–––SEC
Feb 9, 2024Insight Holdings Group, LLC13G/AOld format–––SEC
Feb 14, 2023Foxhaven Asset Management, LP13G/AOld format–––SEC
Feb 14, 2023Benchmark Capital Partners V L P13G/AOld format–––SEC
Feb 10, 20234:51 PM ETRosenblatt David S13GOld format–––SEC
Apr 18, 2022Foxhaven Asset Management, LP13GOld format–New–SEC
Feb 14, 20225:08 PM ETRosenblatt David S13GOld format–New–SEC
Feb 14, 2022Benchmark Capital Partners V L P13GOld format–New–SEC
Feb 10, 2022Insight Venture Partners IX, L.P.13GOld format–New–SEC

Form 144: proposed insider sales

15 notices from officers, directors and other affiliates planning to sell 1stdibs.com, Inc. shares, newest first.

Form 144 notices for DIBS
Filed (ET)SellerShares to sellMarket valuePlanned saleBrokerFiling
Sep 14, 20236:20 PM ETRubinger MatthewOfficer9.98K$40.4KSep 14, 2023Fidelity Brokerage Services LLCSEC
Sep 11, 202312:06 PM ETGoins Melanie FOfficer5.97K$25.5KSep 11, 2023Fidelity Brokerage Services LLCSEC
Sep 8, 20233:07 PM ETRubinger MatthewOfficer5.34K$23.1KSep 8, 2023Fidelity Brokerage Services LLCSEC
Sep 8, 20232:56 PM ETEtergino Thomas JOfficer13.5K$58.3KSep 8, 2023Fidelity Brokerage Services LLCSEC
Sep 8, 20232:52 PM ETRosenblatt David SOfficer · Director18.4K$79.3KSep 8, 2023Fidelity Brokerage Services LLCSEC
Sep 8, 20232:40 PM ETLipman Alison K.Officer6.48K$28.0KSep 8, 2023Fidelity Brokerage Services LLCSEC
Sep 8, 20232:40 PM ETHood NancyOfficer6.93K$29.9KSep 8, 2023Fidelity Brokerage Services LLCSEC
Jun 6, 20235:28 PM ETThomas EterginoChief Financial Officer30.9K$110.4KJun 8, 2023CARTA SECURITIES LLCSEC
Jun 6, 20235:25 PM ETRoss PaulOfficer - Chief Technology Officer14.3K$51.0KJun 8, 2023CARTA SECURITIES LLCSEC
Jun 6, 20235:21 PM ETNancy HoodChief Marketing Officer7.61K$27.2KJun 8, 2023CARTA SECURITIES LLCSEC
Jun 6, 20235:18 PM ETMelanie GoinsOffice - General Counsel6.93K$24.7KJun 8, 2023CARTA SECURITIES LLCSEC
Jun 6, 20235:13 PM ETMatthew RubingerChief Commercial Officer6.42K$22.9KJun 8, 2023CARTA SECURITIES LLCSEC
Jun 6, 20235:09 PM ETDavid RosenblattChief Executive Officer15.5K$55.3KJun 8, 2023CARTA SECURITIES LLCSEC
Jun 6, 20235:03 PM ETCarol LattoufOfficer - SVP, Operations5.42K$19.4KJun 8, 2023CARTA SECURITIES LLCSEC
Jun 6, 20234:32 PM ETAlison LipmanChief People Officer7.22K$25.8KJun 8, 2023CARTA SECURITIES LLCSEC