Chairman Achillefs Konstantakopoulos Discloses $6.6M Open-Market Buying Spree, Lifting Stake to 20.5%
CMDB has more than doubled off its 52-week low of $8.81.
Summary
Chairman Achillefs Konstantakopoulos bought $6.6 million worth of Costamare Bulkers shares in a month-long buying spree, increasing his beneficial ownership to 20.5%.
Key Events · Ownership and Investor Activity · CMDB
-
Chairman Buys $6.6M in Stock
Achillefs Konstantakopoulos acquired 350,682 shares in open-market purchases from June 22 to July 17, 2026, at prices ranging from $17.34 to $19.92, totaling approximately $6.6 million.
-
Stake Rises to 20.5%
Following the purchases, Konstantakopoulos beneficially owns 4,979,706 shares, or 20.5% of the 24,301,490 shares outstanding, including shares held by his spouse and his 50% interest in Costamare Shipping Services Ltd.
-
Purchases Under 10b5-1 Plan
The buying was conducted under a Rule 10b5-1 plan adopted May 21, 2026, which authorizes purchases of up to 500,000 shares, indicating a systematic accumulation strategy.
-
Service Provider Also Receives Shares
Costamare Shipping Services Ltd., 50% owned by Konstantakopoulos, received 60,509 shares on June 30, 2026, as compensation for services, bringing its total holdings to 810,612 shares (3.3%).
Analysis · CMDB · Energy & Transportation
Achillefs Konstantakopoulos, the company's chairman and largest shareholder, has been aggressively buying shares in the open market over the past month, acquiring 350,682 shares for roughly $6.6 million. The purchases were executed under a pre-existing 10b5-1 plan, but the sheer scale—representing about 1.4% of the company's outstanding shares—signals strong conviction from the insider with the deepest knowledge of the business. The buying occurred at prices between $17.34 and $19.92, near the current $18.81 level, suggesting he sees value at these levels. Combined with his spouse's holdings and his indirect stake through Costamare Shipping Services, his total beneficial ownership now stands at 20.5%, reinforcing his alignment with shareholders.
At the time of this filing, CMDB was trading at $18.81 on NYSE in the Energy & Transportation sector, with a market capitalization of approximately $454.8M. The 52-week trading range was $8.81 to $20.50. This filing was assessed with positive market sentiment and an importance score of 8 out of 10.