CMDB Costamare Bulkers (CMDB) Insider Trading, Ownership & Congress Trades
Transport · Water transportation · CIK 0002033535
Activist 13DForm 144 · 1
Insider buyers, 180 days
0
House members buying, 1 year
0
STOCK Act, US House only, disclosed up to 45 days after the trade
Funds added, last quarter
44
13F, latest reported quarter
What the filings say about CMDB
Insiders, 180 days
-$442.9K net sold
1 seller · 0% of sales under a 10b5-1 plan
Planned sales (Form 144), 90 days
$442.9K
1 notice
Activist stakes (13D), 180 days
1 filing
Largest: 20.5% of the class
Costamare Bulkers insider trades (Form 4)
Form 4 buys and sells (codes P and S). Grants, option exercises
and conversions excluded.
Over the last 180 days, Costamare Bulkers Holdings Ltd insiders sold a net $442.9K of stock across 2 Form 4 purchases and sales, with no insider buying. Source: SEC Form 4 filings, as of 2026-10-28.
Foreign private issuer: most of its insiders are exempt from SEC Form 4, but some still file it; those filings are listed below, and the record may be incomplete.
Insider
Filed
Shares
Value
Since filing
Context
- First Form 4 purchase or sale (code P or S) here by this insider on our record.
- No other insider sold within 30 days.
- 44 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Executive Officer Zikos Grigorios sold about $442.9K of CMDB on Aug 6, 2026, the largest insider sale at the company on our record; 44 funds added in the latest 13F quarter.Context
- First Form 4 purchase or sale (code P or S) here by this insider on our record.
- The trade is 7.5% of the 865 shares held after it.
- No other insider bought within 30 days.
- 44 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director Eleftheriou Katerina bought about $982 of CMDB on Mar 27, 2026, the largest insider purchase at the company on our record; 44 funds added in the latest 13F quarter.2 transactions on record · a thin record, read with care
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
Seven facts, ranked against the sector ·
Rank is not a forecast
Insiders
net -$442.9K over 180 days
-$442.9K over 90 days
more than 68% of Transport
Congress
no House purchase disclosed in the last 12 months
Funds
44 funds bought in last quarter
below 68% of Transport
Revenue
no revenue reported in any filing
Margin
-6.3% net margin
below 79% of Transport
Buybacks
no share repurchases reported
Short interest
2.5% of the float short (float per yahoo 2026-10-26) · 5.4 days to cover · settled 2026-09-30
The situation: each line is one rule over one dataset
Achillefs Konstantakopoulos disclosed a 5%+ stake (20.5%) in the last six months.
What changed in the last 30 days
Nothing new filed in the last 30 days
Watch CMDB
A free account keeps a watchlist and can send one email a day when insiders, funds or Congress file on the names in it. No password and no card.
The year, with the filings on it
Total return over 12 months. Each marker is a filing; hover or tap one for the detail.
+54.7%12M
Insider buyInsider sell13D/G stakeForm 144 (planned sale)
Indexed to 100, dividend-adjusted, not a price chart.
When a name files heavily, the largest trades are drawn first.
Who owns CMDB: institutional holders (13F)
13F holdings, latest reported quarter
1,294,494 sh
$22.7M
556,263 sh
$9.8M
425,412 sh
$7.5M
317,984 sh
$5.6M
277,778 sh
$4.9M
Congress trades in CMDB
No Congress trades reported
No House member has disclosed a trade in this stock. See what Congress is buying.
Activist and 5% holders (13D/13G)
13D: intends to influence · 13G: passive
Achillefs Konstantakopoulos
Activist 13D · 2026-07-20
20.5%
Costamare Shipping Services Ltd.
Activist 13D · 2026-07-20
3.3%
CMDB planned insider sales (Form 144)
Notice of intent to sell, filed before any sale
DILOFO HOLDINGS LIMITED
Filed 2026-08-06
$442.9K
CMDB mutual fund holders (N-PORT)
Funds ranked by the share of their own portfolio in this stock (N-PORT).
SIIT SMALL CAP FUND
$158.0K position · as of 2026-05-31
0.1%
SIIT SMALL CAP II FUND
$179.1K position · as of 2026-05-31
0.1%
Longboard Fund
$70.7K position · as of 2026-05-31
0.1%
SIMT Small Cap Fund
$185.0K position · as of 2026-06-30
0.0%
Dimensional US Small Cap Value ETF
$2.1M position · as of 2026-07-31
0.0%
Avantis U.S. Small Cap Value ETF
$4.6M position · as of 2026-05-31
0.0%
SEC N-PORT, monthly, about 60 days late · funds ≥ $10M ·
% is the share of the fund's own portfolio
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
An activist crossed the 5% line with declared intent.
The record shows a net $442.9K sold by insiders over 180 days, 44 funds added last quarter, $442.9K in planned Form 144 sales. Each figure is a federal filing, dated the day it went public.
CMDB financials
Net margin
-6.3%
Ratios from the company's XBRL filings, latest filings
Revenue, TTM
n/a
fewer than four consecutive quarters of revenue filed
Revenue, TTM CMDB
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| Dec 2023 | n/a |
At each fiscal year end
Single quarter
Net margin, TTM
n/a
needs four consecutive quarters of both revenue and net income
Net margin, TTM CMDB
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| Dec 2023 | n/a |
At each fiscal year end
Single quarter
Free cash flow, TTM
n/a
fewer than four consecutive quarters of operating cash flow
Free cash flow, TTM CMDB
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| Dec 2023 | n/a |
At each fiscal year end
Single quarter
Debt to equity
0.23x
long-term 2025-12-31 plus current 2025-12-31; equity 2025-12-31
Debt to equity CMDB
| FY Dec 2025 | 0.23x |
| FY Dec 2024 | 0.00x |
| FY Dec 2023 | n/a |
| Dec 2023 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Cash flow to debt
n/a
needs four quarters of operating cash flow
Cash flow to debt CMDB
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| Dec 2023 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Return on equity
n/a
fewer than four consecutive quarters of net income
Return on equity CMDB
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| Dec 2023 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Return on assets
n/a
fewer than four consecutive quarters of net income
Return on assets CMDB
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| Dec 2023 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Return on invested capital
n/a
fewer than four consecutive quarters of operating income
Return on invested capital CMDB
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| Dec 2023 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Return on capital employed
n/a
fewer than four consecutive quarters of operating income
Return on capital employed CMDB
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| Dec 2023 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
P/E, trailing
n/a
fewer than four consecutive quarters of diluted EPS
P/E, trailing CMDB
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| Dec 2023 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Enterprise value
n/a
no share count filed
Enterprise value CMDB
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| Dec 2023 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
FCF yield
n/a
no share count filed
FCF yield CMDB
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| Dec 2023 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
PEG, trailing
n/a
fewer than four consecutive quarters of diluted EPS
PEG, trailing CMDB
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| Dec 2023 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Price as of 2026-10-26. Hover or tap a tile for its yearly and quarterly history.
Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
| 2025-12 | 2024-12 | 2023-12 | |
|---|---|---|---|
| Revenue | $597.2M | $0 | $0 |
| Operating income | -$30.6M | $0 | $0 |
| Net income | -$37.4M | $6.0K | $0 |
| Operating cash flow | $75.6M | $4.0K | $0 |
| Cash | $211.8M | $4.0K | n/a |
| Long-term debt | $140.6M | $0 | n/a |
SEC XBRL, fiscal years, as known on 2026-10-28
CMDB Stock Sonar score 4/7 axes
Find similar shapesCompareCMDB ranks highest on financial health (75th percentile) and risk and compliance (67th), and lowest on institutional and government (32nd), among Transport peers.
4 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored
CMDB filings, in plain words
Are Costamare Bulkers insiders buying or selling CMDB?
In the 180 days to 2026-10-28, Costamare Bulkers insiders were net sellers, a net $442.9K across purchases and sales reported on Form 4, by 1 seller.
Are there planned insider sales of CMDB?
Yes. 1 Form 144 notice of planned insider sales was filed in the 90 days to 2026-10-28, covering $442.9K of stock; the latest, by DILOFO HOLDINGS LIMITED, was filed 2026-08-06.
Read the full summary
In the 180 days to 2026-10-28, Costamare Bulkers insiders were net sellers of CMDB, a net $442.9K across purchases and sales reported on Form 4 by 1 seller. Insiders filed 1 Form 144 notice of intent to sell in the 90 days to 2026-10-28, covering $442.9K of stock. 1 activist Schedule 13D filing in the last 180 days declared an intent to influence the company, the largest for 20.5% of the class. Each figure is counted from SEC and House filings as of 2026-10-28, dated the day the filing was made public.
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