Executives at crypto-friendly bank Signature Bank have sold more than $100 million of the company's stock in the past three years, and Signature Bank's chairman, former CEO and their successors have sold about half of the total amount in the past three years, according to a Wall Street Journal analysis. Among the executives had sold many shares in 2021 at around $220, and the stock reached an all-time high of $366 in early 2022