Pinterest Co-Founder Benjamin Silbermann Files Form 144 Notice for $940K Stock Sale

Form 144 Filing Analysis: Pinterest, Inc. (NYSE: PINS)

Executive Summary

On September 8, 2026, Benjamin Silbermann, Co-Founder, Director, and 10% Stockholder of Pinterest, Inc., filed a Form 144 notice covering the proposed sale of 46,875 shares of Class A Common Stock with an estimated aggregate market value of $940,561.00 (approximately $20.07 per share).

Transaction Details

• Security: Class A Common Stock
• Broker: Charles Schwab & Co., Inc.
• Shares to be Sold: 46,875
• Aggregate Market Value: $940,561.00
• Shares Outstanding: 492,198,008
• Nature of Holding: Held via The Benjamin and Divya Silbermann Family Trust
• Original Acquisition: April 18, 2019 (Founders Shares)

Rule 10b5-1 Trading Plan & Past Activity

• Plan Adoption Date: February 27, 2026
• Historical Selling Pattern: The insider has executed recurring sales of exactly 46,875 shares on a weekly/bi-weekly cadence over the past 3 months under this trading plan, totaling over 20 separate tranches between June and September 2026.

Market & Trading Impact Assessment

• Significance Level: Low
• Rationale: The proposed transaction represents less than 0.01% of total shares outstanding and is executed pursuant to a pre-arranged Rule 10b5-1 trading plan established in February 2026. Because this is part of an ongoing, programmatic diversification plan by the co-founder, it does not convey any new operational or fundamental signals regarding Pinterest's financial performance.