Latest Period
Q1 2026
Security Snapshot
Costamare Bulkers Holdings Ltd - Common Stock, $0.0001 Par Value (CMDB) Institutional Ownership
CUSIP: Y2001C101
13F Institutional Holders and Ownership History from Q2 2025 to Q1 2026
Institutions Reporting
95
Shares (Excl. Options)
5,104,661
Price
$15.47
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- Security type / class
- Equity / Common Stock, $0.0001 Par Value
- Symbol
- CMDB on NYSE
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 5,104,661
- Total 13F value
- $78,967,821
- Portfolio coverage rank
- 0%
- Share change
- +632,506
- Value change
- +$9,787,633
- Number of holders
- 95
- Shares outstanding
- 24,138,531
- SEC-reported price per share
- $18.69
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
2 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- CMDB - Costamare Bulkers Holdings Ltd - Common Stock, $0.0001 Par Value is tracked under CUSIP Y2001C101.
- 95 institutions reported positions in Q1 2026.
- 4 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 89 to 95 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $68,906,713 to $78,967,821.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 95 institutions filings for Q1 2026.
Security key
Y2001C101
Latest holder period
Q1 2026
13F holders
95
13D/G owners
4
CIK / CUSIP context first
Open Q1 2026 holders
CMDB full holder history
Costamare Bulkers Holdings Ltd SEC filings
Costamare Bulkers Holdings Ltd company facts
Costamare Bulkers Holdings Ltd insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP Y2001C101:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
4
Security
CMDB
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Konstantakopoulos Konstantinos | 31% | +4% | $107,183,788 | +$3,667,925 | 7,458,806 | +3.5% | Konstantakopoulos Konstantinos | 16 Oct 2025 |
| Konstantakopoulos Achillefs | 19% | 4,523,506 | Konstantakopoulos, Achillefs | 06 May 2025 | ||||
| Konstantakopoulos Christos | 16% | 3,810,317 | Konstantakopoulos, Christos | 06 May 2025 | ||||
| DIMENSIONAL FUND ADVISORS LP | 6.1% | $12,710,914 | 1,465,556 | Dimensional Fund Advisors LP | 30 Jun 2025 |
As of 31 Mar 2026, 95 institutional investors reported holding 5,104,661 shares of Costamare Bulkers Holdings Ltd - Common Stock, $0.0001 Par Value (CMDB). This represents 21% of the company’s total 24,138,531 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
19%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| DIMENSIONAL FUND ADVISORS LP | 5.4% | 1,308,857 | -3.7% | 0% | $20,247,985 |
| BlackRock, Inc. | 2.2% | 539,696 | +0.48% | 0% | $8,349,098 |
| AMERIPRISE FINANCIAL INC | 1.6% | 377,401 | 0% | $5,838,393 | |
| AMERICAN CENTURY COMPANIES INC | 1.3% | 320,746 | +17% | 0% | $4,961,941 |
| Oceanic Investment Management LTD | 1.1% | 255,677 | +25% | 3.4% | $3,955,323 |
| RENAISSANCE TECHNOLOGIES LLC | 0.85% | 204,439 | +48% | 0% | $3,162,671 |
| MORGAN STANLEY | 0.66% | 158,850 | -11% | 0% | $2,457,411 |
| STATE STREET CORP | 0.59% | 142,891 | +0.8% | 0% | $2,210,524 |
| Qube Research & Technologies Ltd | 0.51% | 121,900 | +3.6% | 0% | $1,885,793 |
| Walleye Capital LLC | 0.47% | 114,577 | +256% | 0.01% | $1,772,506 |
| GEODE CAPITAL MANAGEMENT, LLC | 0.44% | 106,689 | +1.2% | 0% | $1,650,478 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 0.42% | 101,830 | -15% | 0.03% | $1,575,310 |
| Nuveen, LLC | 0.42% | 101,545 | -17% | 0% | $1,570,902 |
| Russell Investments Group, Ltd. | 0.39% | 94,425 | +10% | 0% | $1,460,755 |
| BOOTHBAY FUND MANAGEMENT, LLC | 0.37% | 89,239 | +35% | 0.03% | $1,380,527 |
| GOLDMAN SACHS GROUP INC | 0.31% | 74,299 | -7% | 0% | $1,149,405 |
| Quantinno Capital Management LP | 0.26% | 62,104 | +25% | 0% | $960,749 |
| BANK OF AMERICA CORP /DE/ | 0.25% | 59,990 | +121% | 0% | $928,045 |
| CITADEL ADVISORS LLC | 0.24% | 58,156 | -1.9% | 0% | $899,673 |
| MARSHALL WACE, LLP | 0.24% | 56,859 | 0% | $879,609 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.23% | 54,921 | -4.3% | 0% | $849,628 |
| NORTHERN TRUST CORP | 0.22% | 53,274 | +7.7% | 0% | $824,148 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 0.21% | 51,058 | 0% | 0% | $789,867 |
| Schonfeld Strategic Advisors LLC | 0.19% | 45,371 | -51% | 0.01% | $701,889 |
| JANE STREET GROUP, LLC | 0.18% | 44,392 | +19% | 0% | $686,744 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
4
Latest
Q1 2026
Rows shown
1-4 of 4