Costamare Bulkers Holdings Ltd - Common Stock, $0.0001 Par Value (CMDB)

Q: What does CUSIP Y2001C101 represent in this 13F holders report?

CUSIP Y2001C101 is the security identifier for CMDB - Costamare Bulkers Holdings Ltd - Common Stock, $0.0001 Par Value used to aggregate holder disclosures.

Q: How many institutions held CMDB - Costamare Bulkers Holdings Ltd - Common Stock, $0.0001 Par Value in Q1 2026?

96 institutional investors reported CMDB - Costamare Bulkers Holdings Ltd - Common Stock, $0.0001 Par Value for Q1 2026. Use the holders table for investor-level position and value details.

CUSIP: Y2001C101

Q1 2026 13F Holders as of 31 Mar 2026

Security type / class: Equity / Common Stock, $0.0001 Par Value
Total 13F shares: 5,104,683
Total 13F value: $78,968,161
Share change: +632,506
SEC-reported price per share: $15.47
Number of holders: 96
Value change: +$9,787,633
Number of buys: 43
Number of sells: 32
Shares outstanding: 24,138,531

Security key

Y2001C101

Report period

Q1 2026

Institutions

Top holders

CMDB full security history Ownership snapshot Full 13F holder table Previous quarter: Q4 2025 Costamare Bulkers Holdings Ltd SEC filings Costamare Bulkers Holdings Ltd company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP Y2001C101

Previous quarter: Q4 2025

Recent filing periods:

Q1 2026 Q4 2025 Q3 2025 Q2 2025

Ownership snapshot

Top reported holders of CMDB - Costamare Bulkers Holdings Ltd - Common Stock, $0.0001 Par Value (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

Konstantakopoulos Konstan...

Disclosed value leader

Konstantakopoulos Konstan...

Comparable rows

15/15

Latest evidence

27 Mar 2026

13D/G 13F 3/4/5 Lead comparable stake: 31% 13D/G row: Konstantakopoulos Konstantinos Showing 1-6 of 15 holder rows.

Quick read

Konstantakopoulos Konstantinos leads the comparable SEC ownership view at 31%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Konstantakopoulos Konstantinos's linked filing trail.

Comparable ownership Top 5

Konstantakopoulos Konstantinos 31%

Achillefs Konstantakopoulos 19%

Christos Konstantakopoulos 16%

DIMENSIONAL FUND ADVISORS LP 6.1%

Grigorios Zikos 0.1%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Konstantakopoulos Konstantinos	13D/G 13D/G	31%	$107,183,788 7,458,806 shares	+$3,667,925	16 Oct 2025
Achillefs Konstantakopoulos	13D/G Konstantakopoulos, Achillefs 13D/G	19%	— 4,523,506 shares	$0	06 May 2025
Christos Konstantakopoulos	13D/G Konstantakopoulos, Christos 13D/G	16%	— 3,810,317 shares	$0	06 May 2025
DIMENSIONAL FUND ADVISORS LP	13F 13D/G Company 13F 13D/G	6.1% from 13D/G	$20,943,133 1,359,048 shares	—	31 Dec 2025
Grigorios Zikos	3/4/5 Chief Executive Officer, Director 3/4/5	0.1%	$360,866 24,203 shares	—	18 Mar 2026
Lund Peter de Place	3/4/5 Director 3/4/5	0.02%	$55,733 3,738 shares	—	18 Mar 2026

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

5,104,683

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2026 vs Q4 2025 Across Filers

Q4 2025 holders

Q1 2026 holders

Holder diff

Investor	Q4 2025 Shares	Q1 2026 Shares	Share Diff	Share Chg %	Q4 2025 value	Q1 2026 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend