Director Brian Schipper's Restricted Stock Units Vesting and Common Stock Acquisition

This Form 4 filing reports that Brian Schipper, a director of 1stdibs.com, Inc., had 40,926 restricted stock units vest on June 8, 2026. The restricted stock units, which represented a contingent right to receive one share of common stock each, were disposed of upon vesting. Concurrently, Schipper acquired 40,926 shares of common stock at a price of $0 per share, representing the conversion of the vested restricted stock units. Following this transaction, Schipper's total holdings of common stock increased to 115,544 shares. The filing notes that the restricted stock units had no expiration date. This transaction represents a routine equity compensation event for a company director rather than a market purchase or sale.