X0607 3 2026-03-18 0 0001341170 EUROSEAS LTD. ESEA 0002127406 Taniskidis George true 4 MESSOGEIOU & EVROPIS STREET MAROUSSI J3 151 24 1 0 0 0 Common stock 6200 D Common stock 2589 I Friends Investment Ltd. Common stock 42821 I Containers Shareholders Trinity Ltd. Includes 2,100 shares of unvested incentive stock awards, of which 700 will vest on July 1, 2026, 700 shares will vest onNovember 13, 2026 and 700 shares will vest on July 1, 2027. Includes 2,589 of common stock held by Friends Investment Company Inc. by virtue of ownership interest in the above entities. The reporting person disclaims beneficial ownership in this Form 3, except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all the reported shares for purposes of Section 16 or for other purposes. Includes 42,821 shares of common stock held by Containers Shareholders Trinity Ltd. by virtue of ownership interest in the above entities. The reporting person disclaims beneficial ownership in this Form 3, except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all the reported shares for purposes of Section 16 or for other purposes. George Taniskidis 2026-04-07