ROSENBLATT DAVID S 4

What Happened
David S. Rosenblatt, CEO of 1stdibs.com, had restricted stock units (RSUs) convert into 174,166 shares on June 8, 2026 (four separate vesting/conversion entries: 47,500; 47,500; 41,666; 37,500). The company withheld 96,228 of those shares to satisfy tax withholding obligations at $4.01 per share, valued at roughly $385,874. After the net withholding, Rosenblatt received 77,938 newly issued shares. These were vesting/settlement actions (awards/RSU conversions), not open-market purchases or sales.

Key Details

• Transaction date: June 8, 2026; Form 4 filed June 10, 2026.
• Gross shares converted/issued: 174,166 (in four tranches: 47,500; 47,500; 41,666; 37,500).
• Shares withheld for taxes: 96,228 at $4.01 each = ~$385,874 (retained by issuer via net settlement; not sold in the open market).
• Net shares delivered to Rosenblatt: 77,938.
• Footnotes: RSUs represent contingent rights to one share each and vest on quarterly schedules from grants made in 2023–2026 (see F1–F6). Withholding was done via net share settlement (F2).
• Filing appears timely (filed two days after the transaction).

Context
These entries reflect RSU vesting/settlement (derivative conversion/award), not an open-market trade. The withholding is a routine tax-withholding/net-settlement step and should not be read as a buy or sell signal about the CEO’s market view.