Airbnb Co-Founder & CSO Nathan Blecharczyk Sells $2.14M Under 10b5-1 Plan

Executive Summary

On September 28, 2026, Nathan Blecharczyk, Chief Strategy Officer, Director, and 10% Owner of Airbnb, Inc. ($ABNB), executed a series of open-market sales totaling 13,615 shares of Class A Common Stock, yielding gross proceeds of approximately $2,135,172.15. In addition, Blecharczyk disposed of 4,077 shares by bona fide gift at $0 per share. These dispositions followed the conversion of 17,692 shares of Class B Common Stock to Class A Common Stock on a 1-to-1 basis.

Transaction Breakdown

• Conversion (Code C): Converted 17,692 shares of Class B Common Stock into 17,692 shares of Class A Common Stock held indirectly through a trust.
• Gifts (Code G): 4,077 shares gifted at $0.00.
• Open Market Sales (Code S):
  • 481 shares at a weighted-average price of $154.4515 (range: $154.318 – $154.99)
  • 1,231 shares at a weighted-average price of $155.7389 (range: $155.05 – $155.97)
  • 5,684 shares at a weighted-average price of $156.5352 (range: $156.00 – $156.985)
  • 6,085 shares at a weighted-average price of $157.4703 (range: $157.00 – $157.97)
  • 134 shares at a price of $158.3100
• Total Sale Shares: 13,615 shares
• Effective Weighted Average Sale Price: ~$156.83

Context & Trading Plan

Both the gift and sales were executed pursuant to a pre-arranged Rule 10b5-1 trading plan adopted on August 28, 2025. Following the transactions, Blecharczyk continues to hold substantial equity in Airbnb:

• Class A Common Stock (Direct): 74,808.445 shares
• Class A Common Stock (Indirect by Trust): 20,567 shares
• Class B Common Stock (Indirect by Trust): 44,366,472 shares (convertible 1-for-1 into Class A Common Stock)

Significance

The trading significance is rated Low. The disposition represents less than 0.04% of Blecharczyk's overall beneficial ownership in the company and was carried out systematically under an established 10b5-1 trading plan.