13F reference period
Q2 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 Q3 2026
Institutions Reporting
97
Shares (Excl. Options)
5.11M
Full value: 5,111,949 · shares · 30 Jun 2026Price
$17.56
The headline uses the Q2 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended. Newer periods in the history table contain incoming reports and may be incomplete.
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- Security type / class
- Equity / Common Stock, $0.0001 Par Value
- Symbol
- CMDB on NYSE
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 5,111,949
- Total 13F value
- $89,756,402
- Portfolio coverage rank
- 0%
- Share change
- +9,201
- Value change
- +$382,349
- Number of holders
- 97
- Shares outstanding
- 24,291,249
- SEC-reported price per share
- $21.82
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
Filing notes and source
Key facts
- CMDB - Costamare Bulkers Holdings Ltd - Common Stock, $0.0001 Par Value is tracked under CUSIP Y2001C101.
- 97 institutions reported positions in Q2 2026.
- 4 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 96 to 97 between Q1 2026 and Q2 2026.
- SEC-reported value moved from to
$78.97M
Full value: $78,968,161 · USD · 31 Mar 2026.$89.76M
Full value: $89,756,402 · USD · 30 Jun 2026
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 97 institutions filings for Q2 2026.
Security key
Y2001C101
13F reference period
Q2 2026
13F holders
97
13D/G owners
4
CIK / CUSIP context first
Open Q2 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 | 20% | +4% | $87,456,087 | +$3,314,764 | 4,979,706 | +3.9% | Achillefs Konstantakopoulos | 17 Jul 2026 |
| 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 30 Jun 2026,
97
institutional investors reported holding
shares of
Costamare Bulkers Holdings Ltd - Common Stock, $0.0001 Par Value (CMDB).
This represents
21%
of the company’s total
outstanding shares.
5.11M
Full value: 5,111,949 · shares · 30 Jun 202624.29M
Full value: 24,291,249 · shares · Stored outstanding share count13F 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 | 5.3% | 1,294,494 | -1.1% | 0% | $22,732,559 |
| BlackRock, Inc. | 2.3% | 556,263 | +3.1% | 0% | $9,767,978 |
| AMERIPRISE FINANCIAL INC | 1.8% | 425,412 | +13% | 0% | $7,470,233 |
| AMERICAN CENTURY COMPANIES INC | 1.3% | 317,984 | -0.86% | 0% | $5,583,799 |
| Oceanic Investment Management LTD | 1.1% | 277,778 | +8.6% | 6.3% | $4,877,781 |
| RENAISSANCE TECHNOLOGIES LLC | 0.81% | 196,146 | -4.1% | 0% | $3,444,324 |
| MORGAN STANLEY | 0.64% | 156,325 | -1.6% | 0% | $2,745,067 |
| STATE STREET CORP | 0.58% | 141,901 | -0.69% | 0% | $2,491,782 |
| Qube Research & Technologies Ltd | 0.48% | 117,562 | -3.6% | 0% | $2,064,389 |
| GEODE CAPITAL MANAGEMENT, LLC | 0.47% | 114,016 | +6.9% | 0% | $2,002,120 |
| BOOTHBAY FUND MANAGEMENT, LLC | 0.46% | 111,340 | +25% | 0.04% | $1,955,130 |
| Nuveen, LLC | 0.41% | 99,495 | -2% | 0% | $1,747,133 |
| Russell Investments Group, Ltd. | 0.39% | 95,867 | +1.5% | 0% | $1,683,424 |
| Quantinno Capital Management LP | 0.31% | 74,757 | +20% | 0% | $1,312,733 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 0.3% | 72,830 | -28% | 0.02% | $1,278,895 |
| TWO SIGMA INVESTMENTS, LP | 0.26% | 64,121 | +129% | 0% | $1,125,965 |
| Walleye Capital LLC | 0.25% | 60,678 | -47% | 0.01% | $1,065,506 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 0.24% | 58,059 | +14% | 0% | $1,019,516 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.23% | 54,994 | +0.13% | 0% | $965,695 |
| GOLDMAN SACHS GROUP INC | 0.22% | 54,343 | -27% | 0% | $954,264 |
| NORTHERN TRUST CORP | 0.22% | 52,987 | -0.54% | 0% | $930,452 |
| BANK OF AMERICA CORP /DE/ | 0.21% | 51,874 | -14% | 0% | $910,908 |
| MARSHALL WACE, LLP | 0.2% | 49,515 | -13% | 0% | $869,482 |
| LOS ANGELES CAPITAL MANAGEMENT LLC | 0.16% | 39,781 | +22% | 0% | $698,554 |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 0.16% | 37,842 | 0% | $664,506 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
6
Headline period
Q2 2026
Rows shown
1-6 of 6
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q3 | 34,076 | $743,332 | +$33,138 | $21.82 | 18 |
| 2026 Q2 | 5,111,949 | $89,756,402 | +$382,349 | $17.56 | 97 |
| 2026 Q1 | 5,104,683 | $78,968,161 | +$9,787,633 | $15.47 | 96 |
| 2025 Q4 | 4,471,553 | $68,907,052 | -$1,553,724 | $15.41 | 90 |
| 2025 Q3 | 4,381,609 | $62,959,408 | -$7,442,642 | $14.37 | 90 |
| 2025 Q2 | 5,120,666 | $44,389,627 | +$44,382,266 | $8.67 | 84 |