David S. Rosenblatt Files Amendment No. 6 to Schedule 13G for 1stdibs.com, Inc.

This Amendment No. 6 to Schedule 13G, filed with the SEC, reports the beneficial ownership of David S. Rosenblatt and associated trusts in 1stdibs.com, Inc. As of the event date of March 31, 2026, David S. Rosenblatt is reported to beneficially own 3,623,864 shares of Common Stock, representing approximately 9.8% of the company's outstanding shares. The filing also includes the 2012 David Rosenblatt Family Trust, which holds 665,302 shares (1.9%), and the 2024 Laura Thalheimer Rosenblatt Family Trust, which holds 22,500 shares (0.1%). Notably, Mr. Rosenblatt disclaims beneficial ownership of the shares held by these trusts, as he lacks voting or dispositive power over them. The calculations are based on an outstanding share count of 35,445,599. The filing serves as a routine update to the reporting group's holdings under Rule 13d-1(d). All reporting persons are classified under group 'b' for membership purposes.