Costamare Bulkers Holdings Limited (CMDB)
NYSE: CMDB · Water Transportation · Monaco, MC · filing with the SEC since 2024
Who owns Costamare Bulkers Holdings Limited
As filed with the SECHolders of 5% or more
4
Konstantakopoulos Konstantinos holds 30.9% of Common Stock, $0.0001 Par Value, as its SCHEDULE 13D/A filed Oct 20, 2025 says.
Directors and officers
6
report now, of 6 people on the record since 2026. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 4 named at left.
Holders of 5% or moreshare of the class, as filed
Konstantakopoulos Konstantinos
SCHEDULE 13D/A · filed Oct 20, 2025 · Common Stock, $0.0001 Par Value · 29.7% in Aug 28, 2025
Achillefs Konstantakopoulos
SCHEDULE 13D · filed Jul 20, 2026 · Common Stock, $0.0001 Par Value · 19.7% in Jul 6, 2026
Konstantakopoulos, Christos
SCHEDULE 13G · filed May 6, 2025 · Common Stock, $0.0001 Par Value
Dimensional Fund Advisors LP
SCHEDULE 13G · filed Jul 15, 2025 · Common Stock
What CMDB reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Costamare Bulkers Holdings Limited Predecessor
An entity · legal entity · owns, named in the 20-F filed Mar 30, 2026
69 subsidiaries in 2 countries, from the list filed with the 20-F filed Mar 30, 2026.
Insider tradesForm 4
1sales
1purchases
0sales on a scheduled plan
1people selling
$400,000sold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Sep 30, 2025 to Sep 30, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Sep 30, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window2 of 6 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Zikos Grigorios | Chief Executive Officer | 1 | $400,000 | 0 | 0 | $0 |
| Eleftheriou Katerina | director | 0 | $0 | 0 | 1 | $0 |