Costamare Inc
Ownership
Ownership Structure
Who owns Costamare Inc (CMRE)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 37.6% of the shares are freely tradable; institutional investors hold 33.1%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Dimensional Fund Advisors, Inc. | 6.15 | 7,432,378 | +3.5 | 06/30/2026 |
| BlackRock Inc | 3.56 | 4,301,242 | -12.9 | 03/31/2026 |
| Acadian Asset Management LLC | 2.59 | 3,129,524 | +4,908.3 | 03/31/2026 |
| American Century Companies Inc | 1.66 | 2,012,530 | +43.4 | 06/30/2026 |
| Bridgeway Capital Management, LLC | 0.97 | 1,174,264 | +0.3 | 03/31/2026 |
| State Street Corp | 0.86 | 1,042,352 | +1.0 | 03/31/2026 |
| Qube Research & Technologies | 0.84 | 1,017,727 | +139.0 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Avantis US Small Cap Value ETF | 1.65 | 1,997,802 | +0.1 | 08/31/2026 |
| DFA US Small Cap Value I | 1.46 | 1,765,828 | +0.0 | 07/31/2026 |
| iShares Russell 2000 ETF | 0.99 | 1,193,666 | -0.6 | 08/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Konstantakopoulos Konstantinos | Chairman and CEO | 12,873,469 | 199,538,770 $ | Sep 15, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 15, 2026 | Konstantakopoulos Konstantinos | Chairman and CEO | Other | 1,100,000 | 0.00 | – |
| Jul 29, 2026 | Zikos Grigorios | Chief Financial Officer | Sell | 59,840 | 15.34 | 917,916 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 18, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.