COINBASE (COIN) CEO BRIAN ARMSTRONG ADOPTS 10B5-1 PLAN TO SELL UP TO 8.17M SHARES (~$1.31B) THROUGH OCT 2027 *COINBASE (COIN) INSIDERS EHRSAM, COO CHOI ALSO ENTER 10B5-1 SHARE SALE PLANS FOR UP TO 3.87M AND 1.56M SHARES 29-OCT-2026 04:16 PM ET