American Century Companies Boosts Stake in Costamare Shipping Firm

Investment firm increases position in container shipping company by 13.5% in Q3 2025.

Published on Mar. 11, 2026

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American Century Companies Inc. raised its stake in Costamare Inc. (NYSE:CMRE), a container shipping firm, by 13.5% in the third quarter of 2025, according to a recent SEC filing. The investment firm now owns approximately 1.5 million shares, or 1.25% of Costamare's outstanding stock, valued at $17.87 million.

Why it matters

Costamare is a major player in the global container shipping industry, providing vital capacity to major shipping lines through a fleet of modern vessels. American Century's increased investment signals confidence in Costamare's business model and growth prospects, as the shipping industry navigates supply chain disruptions and evolving environmental regulations.

The details

American Century Companies purchased an additional 178,425 shares of Costamare in Q3 2025, bringing its total position to 1,500,464 shares. Other major institutional investors in Costamare include JPMorgan Chase & Co., Vanguard Group, and Arrowstreet Capital Limited Partnership.

  • American Century Companies filed its Q3 2025 13F report with the SEC on March 11, 2026.

The players

American Century Companies Inc.

A global investment management firm that provides a variety of mutual funds, exchange-traded funds, and other investment products to individual and institutional clients.

Costamare Inc.

A leading owner and manager of containerships, specializing in the acquisition, chartering, and operation of modern container vessels.

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The takeaway

American Century's increased stake in Costamare reflects the investment firm's confidence in the container shipping company's long-term growth potential, as the industry navigates supply chain challenges and environmental regulations.