Airbnb's shareholder and Chief Strategy Officer Nathan Blecharczyk conducted two transactions on February 14, 2025, which included exercising 183,078 stock options and selling the same amount of common stock at a price of $158 per share. After these transactions, he still directly holds 164,850 shares of the company. Such sales by key executives and 10% owners are often viewed negatively by the market, and investors should stay cautious.