Costamare Bulkers Holdings Limited (CMDB) Ownership
CMDB ownership summary
as of October 18, 2026- Institutions
- 21.4% of shares outstanding
- Insiders
- 65.66% of shares outstanding
- Shares outstanding
- 24.3M
- Float
- 11.9M shares available to trade
- Short interest
- 3.49% 292K shares short
- Days to cover
- 4.75 short interest up 19.6% vs prior month
- Institutions 21.36%
- Insiders 65.66%
- Other investors 12.98%
CMDB top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Dimensional Fund Advisors, Inc. | 5.33% | 1.3M | $25.3M | −14,363 (−1.1%) | June 30, 2026 |
| 2 | BlackRock Inc | 2.29% | 556K | $10.9M | +16,567 (+3.1%) | June 30, 2026 |
| 3 | Ameriprise Financial Inc | 1.75% | 425K | $8.3M | +48,011 (+12.7%) | June 30, 2026 |
| 4 | American Century Companies Inc | 1.31% | 318K | $6.2M | −2,762 (−0.9%) | June 30, 2026 |
| 5 | Oceanic Investment Management LTD | 1.14% | 278K | $5.4M | +22,101 (+8.6%) | June 30, 2026 |
| 6 | Renaissance Technologies Corp | 0.81% | 196K | $3.8M | −8,293 (−4.1%) | June 30, 2026 |
| 7 | Morgan Stanley - Brokerage Accounts | 0.64% | 156K | $3.1M | −2,525 (−1.6%) | June 30, 2026 |
| 8 | State Street Corp | 0.58% | 142K | $2.8M | −990 (−0.7%) | June 30, 2026 |
| 9 | Qube Research & Technologies | 0.48% | 118K | $2.3M | −4,338 (−3.6%) | June 30, 2026 |
| 10 | Geode Capital Management, LLC | 0.47% | 114K | $2.2M | +7,327 (+6.9%) | June 30, 2026 |
| 11 | BOOTHBAY FUND MANAGEMENT, LLC | 0.46% | 111K | $2.2M | +22,101 (+24.8%) | June 30, 2026 |
| 12 | Nuveen, LLC | 0.41% | 99K | $1.9M | −2,050 (−2.0%) | June 30, 2026 |
| 13 | Quantinno Capital Management LP | 0.31% | 75K | $1.5M | +12,653 (+20.4%) | June 30, 2026 |
| 14 | Bridgeway Capital Management, LLC | 0.30% | 73K | $1.4M | −29,000 (−28.5%) | June 30, 2026 |
| 15 | Two Sigma Investments LLC | 0.26% | 64K | $1.3M | +36,131 (+129.1%) | June 30, 2026 |
| 16 | Walleye Trading Advisors, LLC | 0.25% | 61K | $1.2M | −53,899 (−47.0%) | June 30, 2026 |
| 17 | Vanguard Portfolio Management, LLC | 0.24% | 58K | $1.1M | +7,001 (+13.7%) | June 30, 2026 |
| 18 | Charles Schwab Investment Management Inc | 0.23% | 55K | $1.1M | +73 (+0.1%) | June 30, 2026 |
| 19 | The Goldman Sachs Group Inc | 0.22% | 54K | $1.1M | −19,956 (−26.9%) | June 30, 2026 |
| 20 | Northern Trust Corp | 0.22% | 53K | $1.0M | −287 (−0.5%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 9 holders added 172K shares and 11 cut 138K.
CMDB top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | DFA US Small Cap Value I | 1.45% | 353K | $6.9M | — | August 31, 2026 |
| 2 | Columbia Small Cap Value Discv A | 1.23% | 300K | $5.9M | +1,800 (+0.6%) | August 31, 2026 |
| 3 | Avantis US Small Cap Value ETF | 1.17% | 283K | $5.5M | — | September 30, 2026 |
| 4 | iShares Russell 2000 ETF | 0.91% | 221K | $4.3M | −2,560 (−1.1%) | September 30, 2026 |
| 5 | Dimensional US Small Cap Value ETF | 0.44% | 107K | $2.1M | — | September 24, 2026 |
| 6 | DFA US Small Cap I | 0.44% | 106K | $2.1M | — | August 31, 2026 |
| 7 | DFA US Micro Cap I | 0.43% | 105K | $2.1M | — | August 31, 2026 |
| 8 | Fidelity Small Cap Index | 0.37% | 90K | $1.8M | +616 (+0.7%) | July 31, 2026 |
| 9 | Dimensional US Targeted Value ETF | 0.37% | 89K | $1.7M | — | September 30, 2026 |
| 10 | DFA US Targeted Value I | 0.36% | 87K | $1.7M | −6,049 (−6.5%) | August 31, 2026 |
| 11 | iShares Russell 2000 Value ETF | 0.33% | 80K | $1.6M | +122 (+0.2%) | September 30, 2026 |
| 12 | Dimensional US Small Cap ETF | 0.33% | 80K | $1.6M | — | September 30, 2026 |
| 13 | Russell Inv Tax-Managed US Mid&Sm Cap S | 0.33% | 79K | $1.5M | — | August 31, 2026 |
| 14 | CREF Total Global Stock Account R3 | 0.32% | 77K | $1.5M | — | July 31, 2026 |
| 15 | Dimensional US Core Equity 2 ETF | 0.25% | 60K | $1.2M | — | September 30, 2026 |
| 16 | Columbia VP Small Cap Value Discovery 1 | 0.22% | 53K | $1.0M | −200 (−0.4%) | August 31, 2026 |
| 17 | Bridgeway Omni Small-Cap Value N | 0.20% | 50K | $973,590 | −10,000 (−16.7%) | June 30, 2026 |
| 18 | Vanguard Russell 2000 ETF | 0.20% | 49K | $960,374 | +1,509 (+3.2%) | August 31, 2026 |
| 19 | DFA US Core Equity 2 I | 0.18% | 44K | $863,719 | — | August 31, 2026 |
| 20 | DFA US Core Equity 1 I | 0.17% | 41K | $810,641 | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
Who owns CMDB
Institutional investors own 21.4% of Costamare Bulkers's shares and insiders 65.66%. The largest holder is Dimensional Fund Advisors, Inc. with 5.33% of the shares (1.3M), as of June 30, 2026. Among the top 20 institutions, 9 added shares and 11 reduced their stake in the latest filings. Short interest is 3.49% of the float, or 4.75 days of average trading volume.
Related: CMDB key metrics. See the CMDB stock overview for the latest quote and news.
CMDB ownership FAQ
Who owns the most Costamare Bulkers stock?
The largest shareholders of Costamare Bulkers are Dimensional Fund Advisors, Inc. (5.33%), BlackRock Inc (2.29%), Ameriprise Financial Inc (1.75%), American Century Companies Inc (1.31%), Oceanic Investment Management LTD (1.14%).
What percentage of Costamare Bulkers is owned by institutions?
Institutions hold 21.4% of Costamare Bulkers's shares outstanding; insiders hold 65.66%.
Which funds own Costamare Bulkers?
The largest fund holders of Costamare Bulkers are DFA US Small Cap Value I (1.45%), Columbia Small Cap Value Discv A (1.23%), Avantis US Small Cap Value ETF (1.17%), iShares Russell 2000 ETF (0.91%), Dimensional US Small Cap Value ETF (0.44%).
What is Costamare Bulkers's short interest?
292K shares of Costamare Bulkers were sold short, 3.49% of the float; at the average daily volume it would take 4.75 days to cover.
How many shares of Costamare Bulkers are outstanding?
Costamare Bulkers has 24.3M shares outstanding, of which 11.9M are in the public float.