According to Coinbase's Q3 SEC filing, CEO Brian Armstrong, co-founder Fred Ehrsam, and President Emilie Choi have adopted Rule 10b5-1 trading plans, allowing for the potential sale of up to 13.6 million shares of COIN stock, valued at approximately $2.2 billion based on the October 29 closing price. Specifically, Armstrong's plan covers up to 8.17 million shares between November 16, 2026, and October 2027, with actual sales subject to predetermined price thresholds. These are planned transactions, not completed sales.