Form4insider filings, from the source

Company · CIK 0001600641 · SIC 5961 — Retail-Catalog & Mail-Order Houses · Nasdaq

1stdibs.com, Inc. · DIBS

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 8, 2026 FMForm 4 →Sep 10, 6:15 pm EDTThomas J EterginoChief Financial Officer52,071$4.73$83,243350,293—
Sep 8, 2026 FMForm 4 →Sep 10, 6:14 pm EDTMelanie F GoinsGeneral Counsel and CPO39,527$4.73$42,428264,692—
Sep 8, 2026 FMForm 4 →Sep 10, 6:14 pm EDTDavid S RosenblattChief Executive Officer, Director270,396$4.73$455,1632,203,074—

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 8, 2026 MForm 4 →Sep 10, 6:15 pm EDTThomas J EterginoChief Financial Officer34,472——67,050—
Sep 8, 2026 MForm 4 →Sep 10, 6:14 pm EDTMelanie F GoinsGeneral Counsel and CPO30,557——115,250—
Sep 8, 2026 MForm 4 →Sep 10, 6:14 pm EDTDavid S RosenblattChief Executive Officer, Director174,167——416,667—