Pinterest Co-Founder Benjamin Silbermann Files Form 144 to Sell $995K in Stock Under 10b5-1 Plan

Executive Summary

On September 2, 2026, Benjamin Silbermann, Co-Founder, Director, and 10% Stockholder of Pinterest, Inc. ($PINS), submitted a Form 144 notice proposing the sale of 46,875 shares of Class A Common Stock with an estimated aggregate market value of $995,093.00.

Transaction Analysis

• Security: Class A Common Stock
• Shares to Sell: 46,875 shares
• Aggregate Market Value: $995,093.00 (approx. $21.23 per share)
• Pre-set Trading Plan: The proposed sale is executed pursuant to a Rule 10b5-1 trading plan adopted on February 27, 2026.
• Ownership Structure: Indirect ownership via The Benjamin and Divya Silbermann Family Trust.
• Historical Activity: The filer has executed consistent sales of 46,875 shares at regular intervals across June, July, and August 2026 under the established trading plan.

Market Impact & Significance

Given that this proposed transaction is part of a pre-scheduled Rule 10b5-1 trading plan and represents a tiny fraction of the 492,198,008 total shares outstanding, this filing carries Low trading significance and reflects programmatic founder diversification rather than an unscripted sentiment shift.