Capital Tankers Corp. Transaction by close associate of primary insider

Athens, Greece, 1 June 2026: Capital Maritime & Trading Corp., a close associate of Gerasimos (Jerry) Kalogiratos, CEO and primary insider in Capital Tankers Corp., has purchased shares as further set out in the attached notification of transaction. This information is published in accordance with the disclosure requirements pursuant to Article 19 of the EU Market Abuse Regulation (EU) No 596/2014 and Section 5-12 of the Norwegian Securities Trading Act. For more information, please contact: Brian Gallagher, Investor Relations and Business Development Telephone: +44 770 368 4996 Email: b.gallagher@capitalmaritime.com About Capital Tankers Corp. Capital Tankers Corp. (Euronext Growth Oslo: CAPT) is a Marshall Islands-incorporated owner of modern crude and product tankers primarily trading its vessels in the spot market. The Company owns a fleet of 30 super-eco vessels --- 12 VLCCs, 10 Suezmax tankers, and eight Aframax/LR2s --- comprising 12 sailing vessels and 18 newbuilds scheduled for delivery between 2026 and 2028, with options for 13 additional crude tankers. 23 of the 30 vessels have dual-fuel LNG capabilities, providing the Company with significant potential fuel and regulatory cost advantages.