Pinterest Co-Founder Benjamin Silbermann Sells $2.13M Under Rule 10b5-1 Plan

Insider Filing Analysis: Pinterest, Inc. ($PINS)

Executive Summary

On October 21, 2026, Pinterest co-founder, director, and 10% owner Benjamin Silbermann reported the sale of 93,750 shares of Class A Common Stock across two consecutive trading days (October 20 and October 21, 2026) for an aggregate value of approximately $2.13 million. The transactions were pre-scheduled sales executed under a Rule 10b5-1 trading plan adopted on February 27, 2026.

Key Transaction Details

• Conversion & Sale Mechanism: Over October 20 and 21, 2026, the Benjamin and Divya Silbermann Family Trust converted an aggregate of 93,750 shares of Class B Common Stock to Class A Common Stock on a 1:1 basis (Code C) and sold them in the open market (Code S).
• October 20, 2026: Sold 46,875 shares at a weighted-average price of $22.5596 (range: $22.34 to $22.83), generating ~$1,057,481.
• October 21, 2026: Sold 46,875 shares at a weighted-average price of $22.9408 (range: $22.68 to $23.11), generating ~$1,075,350.
• Aggregate Proceeds: ~$2,132,831.25 at an average realized price of approximately $22.75 per share.

Context and Ownership Impact

• Pre-Arranged 10b5-1 Plan: Footnote 2 confirms the transactions were executed pursuant to a Rule 10b5-1 trading plan established on February 27, 2026, mitigating concerns regarding opportunistic timing or non-public information.
• Remaining Holdings: The disposition represents a fractional portion of Silbermann's total stake. Following these sales, Silbermann continues to hold substantial voting and economic control:
  • 33,955,638 Class B shares indirectly via the Benjamin and Divya Silbermann Family Trust.
  • 8,762,530 Class B shares indirectly held by SFTC, LLC.
  • 1,174,715 Class B shares held directly.
  • 13,996 Class A shares (unvested RSUs) held directly.
• Market Significance: Because the disposition represents less than 0.25% of his overall multi-class shareholdings and was conducted pursuant to an established 10b5-1 plan, this transaction is rated as Low significance.