CMDB · Costamare Bulkers Holdings Ltd · Shareholders & Ownership
$19.57
+0.25 (+1.29%)
At close · Oct 20
Return incl. dividend (before tax)
Market Cap
$475.58M
Shares
24.30M
Volume · Oct 20
39.31K
Avg daily vol (3M)
69.35K
Every disclosed holder of CMDB in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns CMDB
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positionsNo chart: shares outstanding cannot be set against these holders.
| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 5,112,509 | — |
| Insiders (Forms 3, 4, 5) | 0 | — |
| 13D/G-only blocks | 16,248,829 | — |
| Registered funds (N-PORT, not summed) | 842,196 | — |
% Out is unavailable: a foreign private issuer reports ordinary shares, a different unit from the listed shares.
Insiders are listed but not summed: the issuer has more than one class of common stock and Forms 3, 4 and 5 report one issuer-wide balance across them.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of CMDB
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
Konstantakopoulos, Konstantinos
13D
CIK 1513017 · Unknown · Oct 16, 2025
|
7,458,806 | ||
| 2 |
Konstantakopoulos, Achillefs
13D
CIK 1513021 · Unknown · Jul 17, 2026
Item 4 purpose: Passive investment
|
4,979,706 | ||
| 3 |
|
3,810,317 | ||
| 4 |
DIMENSIONAL FUND ADVISORS LP
13F
CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,294,494 | ||
| 4.1 |
Dimensional US Small Cap Value ETF
Fund
S000075151 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
106,926 | ||
| 4.2 |
Dimensional U.S. Targeted Value ETF
Fund
S000070901 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
101,433 | ||
| 4.3 |
Dimensional U.S. Small Cap ETF
Fund
S000070906 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
79,875 | ||
| 4.4 |
Dimensional U.S. Core Equity 2 ETF
Fund
S000070903 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
59,766 | ||
| 4.5 |
Dimensional U.S. Marketwide Value ETF
Fund
S000075030 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
15,106 | ||
| 5 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
556,263 | ||
| 6 |
AMERIPRISE FINANCIAL INC
13F
CIK 820027 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
425,412 | ||
| 7 |
AMERICAN CENTURY COMPANIES INC
13F
CIK 748054 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
317,984 | ||
| 8 |
Avantis U.S. Small Cap Value ETF
Fund
S000066459 · Registered fund · May 31, 2026
American Century ETF Trust, not summed
|
285,530 | ||
| 9 |
Oceanic Investment Management LTD
13F
CIK 1438258 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
277,778 | ||
| 10 |
RENAISSANCE TECHNOLOGIES LLC
13F
CIK 1037389 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
196,146 | ||
| 11 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
156,325 | ||
| 12 |
|
141,901 | ||
| 13 |
Qube Research & Technologies Ltd
13F
CIK 1729829 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
117,562 | ||
| 14 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
114,016 | ||
| 15 |
BOOTHBAY FUND MANAGEMENT, LLC
13F
CIK 1549230 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
111,340 | ||
| 16 |
|
99,495 | ||
| 16.1 |
College Retirement Equities Fund - Total Global Stock Account
Fund
S000005080 · Registered fund · Jun 30, 2026
College Retirement Equities Fund, not summed
|
76,894 | ||
| 16.2 |
Nuveen Small Cap Blend Index Fund
Fund
S000005367 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
10,044 | ||
| 16.3 |
Nuveen Equity Index Fund
Fund
S000005360 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
9,556 | ||
| 16.4 |
TIAA Separate Account VA-1 - Stock Index Account
Fund
S000005098 · Registered fund · Jun 30, 2026
TIAA Separate Account VA-1, not summed
|
206 | ||
| 16.5 |
Nuveen Life Stock Index Fund
Fund
S000005094 · Registered fund · Jun 30, 2026
TIAA-CREF Life Funds, not summed
|
153 | ||
| 17 |
Russell Investments Group, Ltd.
13F
CIK 1692234 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
95,867 | ||
| 18 |
Quantinno Capital Management LP
13F
CIK 1759654 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
74,757 | ||
| 19 |
BRIDGEWAY CAPITAL MANAGEMENT, LLC
13F
CIK 1107261 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
72,830 | ||
| 20 |
TWO SIGMA INVESTMENTS, LP
13F
CIK 1179392 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
64,121 | ||
| 21 |
Walleye Capital LLC
13F
CIK 1758720 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
60,678 | ||
| 22 |
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
58,059 | ||
| 23 |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
54,994 | ||
| 24 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
54,343 | ||
| 25 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
52,987 | ||
| 25.1 |
Small Cap Index Fund
Fund
S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
4,299 | ||
| 26 |
BANK OF AMERICA CORP /DE/
13F
CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
51,874 | ||
| 27 |
MARSHALL WACE, LLP
13F
CIK 1318757 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
49,515 | ||
| 28 |
LOS ANGELES CAPITAL MANAGEMENT LLC
13F
CIK 1177206 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
39,781 | ||
| 29 |
JACOBS LEVY EQUITY MANAGEMENT, INC
13F
CIK 884414 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
37,842 | ||
| 30 |
STRS OHIO
13F
CIK 820478 · Pension or benefit plan · Jun 30, 2026
carried, not yet filed for the newest quarter
|
36,500 | ||
| 31 |
JPMORGAN CHASE & CO
13F
CIK 19617 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
34,181 | ||
| 32 |
CITADEL ADVISORS LLC
13F
CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
33,458 | ||
| 33 |
MILLENNIUM MANAGEMENT LLC
13F
CIK 1273087 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
30,811 | ||
| 34 |
|
29,958 | ||
| 35 |
HORIZON KINETICS ASSET MANAGEMENT LLC
13F
CIK 1056823 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
27,580 | ||
| 36 |
Moran Wealth Management, LLC
13F
CIK 1965334 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
26,700 | ||
| 37 |
AQR CAPITAL MANAGEMENT LLC
13F
CIK 1167557 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
25,235 | ||
| 38 |
Bank of New York Mellon Corp
13F
CIK 1390777 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
24,693 | ||
| 39 |
Avantis U.S. Small Cap Equity ETF
Fund
S000074835 · Registered fund · May 31, 2026
American Century ETF Trust, not summed
|
24,183 | ||
| 40 |
PRELUDE CAPITAL MANAGEMENT, LLC
13F
CIK 1387508 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
23,334 | ||
| 41 |
Empowered Funds, LLC
13F
CIK 1592828 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
23,030 | ||
| 42 |
Arax Advisory Partners
13F
CIK 1586767 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
22,803 | ||
| 43 |
Creative Planning
13F
CIK 1540235 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
18,964 | ||
| 44 |
XTX Topco Ltd
13F
CIK 1828301 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
15,053 | ||
| 45 |
Trexquant Investment LP
13F
CIK 1633445 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
14,326 | ||
| 46 |
WINTON GROUP Ltd
13F
CIK 1612063 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
13,323 | ||
| 47 |
Point72 Asset Management, L.P.
13F
CIK 1603466 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
12,859 | ||
| 48 |
RHUMBLINE ADVISERS
13F
CIK 1115418 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
12,256 | ||
| 49 |
ALLIANCEBERNSTEIN L.P.
13F
CIK 1109448 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
12,172 | ||
| 50 |
SIIT SMALL CAP II FUND
Fund
S000036633 · Registered fund · May 31, 2026
SEI INSTITUTIONAL INVESTMENTS TRUST, not summed
|
11,098 |
5 more nested rows are not shown here; Every filing lists them all.
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.
Showing 1–50 of 127 holders
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Key facts
CIK
2033535
CUSIP
Y2001C101
13F (30d)
12 filings
12 filers
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