InsiderTrades

Form 4 for DIBS 1stdibs.com, Inc.

Accepted 2025-11-26 00:00:00 ET · period of report 2025-11-24 · accession 0001237860-25-000007 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
D 2025-11-26 2025-11-24 DIBS ROSENBLATT DAVID S CEO, Dir M - OptEx $3.87 +666.7K 2.51M +36% +$2.58M
D 2025-11-26 2025-11-24 DIBS ROSENBLATT DAVID S CEO, Dir S - Sale+OE $5.09 -595.1K 1.92M -24% -$3.03M
D 2025-11-26 2025-11-24 DIBS ROSENBLATT DAVID S CEO, Dir M - OptEx $0.00 -666.7K 0 -100% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2025-11-24 M A 666,666 $3.87 2,512,564 D — —
2 Common Common Stock 2025-11-24 S D 595,071 $5.09 1,917,493 D — — (F1) The transactions reported herein represent a net exercise of outstanding stock options. The reporting person received 666,666 shares of common stock on a net exercise of an option to purchase 666,666 shares of common stock. The Issuer withheld 595,071 shares of common stock underlying the option for payment of the aggregate exercise price of $2,579,997.42 and to meet the tax withholding obligations of the reporting person, using the stock price on November 24, 2025 of $5.09, pursuant to the terms of the 2011 Stock Option and Grant Plan.
3 Derivative Employee Stock Option (right to buy) 2025-11-24 M D 666,666 $0.00 0 D $3.87 · — to 2026-02-11 666,666 Common Stock (F2) Option vests over four years with 1/48th of the shares vesting on each monthly anniversary of November 1, 2015, subject to the reporting person's continued service with the Issuer through the applicable vesting date.