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Costamare Bulkers Holdings

US · CMDB #3743 by market cap Listed 2025
21.38 +0.51 +2.44%
Live - 5344 symbols - heartbeat 303s ago · 2026-10-08 10:04
After-hours 20.87 0.00%
Market cap
519.57M
P/B
0.76
EPS
-1.55
Reader sentiment Are you bullish or bearish on CMDB?

Anonymous reader poll. Unscientific, not investment advice.

✦ Quant Ownership Signal how this is computed

Mixed / stable
  • The number of reporting institutions increased by 1 in the most recent period (2026/Q3).
  • Total institutional ownership (as a % of shares) was little changed.

Institutional ownership

Held by institutions
21.25% -0.01pp
Institutions
130 +1
As of
2026/Q3 vs. prior period

Ownership vs. money flow

Diverging

Institutions trimmed shares last reporting period, and the stock has seen net inflows in main-fund flow over the last 20 trading sessions - the two are pointing in different directions.

Institutional ownership changes are reported quarterly with a lag; fund-flow data is daily. Treat this as a directional cross-check, not a precise timing signal.

Holder types

Individual/Insider50.90%
Mutual Fund16.40%
Hedge Fund3.84%
Public Company0.68%
Government Pension Fund0.17%
Other27.84%

Top holders as of 2026-06-30

Achillefs Konstantakopoulos 18.05% · 4.39M sh
Konstantinos Konstantakopoulos 17.16% · 4.17M sh
Christos Konstantakopoulos 15.68% · 3.81M sh
Dimensional Fund Advisors 5.33% · 1.29M sh
BlackRock 2.29% · 556.26K sh
Columbia Management Investment Advisers, LLC 1.75% · 425.41K sh
American Century Investment Management 1.31% · 317.98K sh
Oceanic Investment Management Limited 1.14% · 277.78K sh
Renaissance Technologies Corp. 0.81% · 196.15K sh
State Street Global Advisors 0.58% · 141.90K sh

Bar length is relative to the largest holder shown here, not to 100% of the company.

Insiders

6 filings tracked · 1 buys · 1 sells

NameRoleStake
Peter Lund Director 0.02%
Katerina Eleftheriou Independent Director 0.00%
David Grant Independent Director 0.00%
Gregory Zikos Chief Executive Officer --

Insider transactions most recent Form 4 filings

DateNameRoleTypeSharesPrice
2026-08-05 Gregory Zikos Chief Executive Officer Open Market Disposition -24,203 $18.30
2026-03-26 Katerina Eleftheriou Independent Director Open Market Acquisition +65 $15.11
2026-03-17 Gregory Zikos Chief Executive Officer Initial Statement of Beneficial 0 --
2026-03-17 Katerina Eleftheriou Independent Director Initial Statement of Beneficial 0 --
2026-03-17 Peter Lund Director Initial Statement of Beneficial 0 --
2026-03-17 David Grant Independent Director Initial Statement of Beneficial 0 --

Form 4 filings, most recent per company. "Other Derivative Acquisition" rows are mostly RSU/option vesting, not open-market buying - the Type column says which.

Quote time 2026-10-08 10:04:31 · For reference only, not investment advice and not tailored to your situation.