TSAKOS ENERGY NAVIGATION LIMITED Common Shares ($5.00 par value per share) Series D Cumulative Redeemable Perpetual Preferred Shares ($1.00 par value per share) Series E Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Shares ($1.00...At-the-Market Equity Offering Sales Agreement • May 5th, 2021 • Tsakos Energy Navigation LTD • Deep sea foreign transportation of freight • New York
