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CMDB · Costamare Bulkers Holdings Ltd
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TEAM-0.32% 13F +439META+3.01% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV+4.49% 13F +693CRM+2.92% 13F +1,018CVNA-0.98% 13F +794TPL-0.71% 13F +444NET+4.32% 13F +710MSTR+17.56% 13F +526DELL+4.91% 13F +1,203CRWD+5.68% 13F +1,382ANET+1.22% 13F +1,323COIN+10.14% 13F +475TEAM-0.32% 13F +439META+3.01% 13F +2,694RCG-2.04% CLUSTERUTHR-4.03% 13F +425CRWV+4.49% 13F +693CRM+2.92% 13F +1,018CVNA-0.98% 13F +794TPL-0.71% 13F +444NET+4.32% 13F +710MSTR+17.56% 13F +526DELL+4.91% 13F +1,203CRWD+5.68% 13F +1,382ANET+1.22% 13F +1,323COIN+10.14% 13F +475
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CMDB

Costamare Bulkers Holdings Ltd
TRANSPORT · WATER TRANSPORTATION · CIK 0002033535
ACTIVIST 13DFORM 144 · 1☆ WATCH
INSIDER NET · 180D
-$441.9K
open-market buys minus sells, Form 4 codes P and S
INSIDER BUYERS · 180D
1
CONGRESS BUYERS · 1Y
0
FUNDS ADDED · QTR
45
13F, latest reported quarter
REVENUE GROWTH
-
XBRL, annual
NET MARGIN
-6.3%
SEVEN FACTS, RANKED AGAINST THE SECTOR · RANK IS NOT A FORECAST
INSIDERS
net -$441.9K over 180 days
-$442.9K over 90 days
more than 64% of Transport
CONGRESS
no member of Congress has reported trading it
FUNDS
45 funds added or opened last quarter
below 67% of Transport
REVENUE
no revenue reported in any filing
MARGIN
-6.3% net margin
below 79% of Transport
BUYBACKS
no share repurchases reported
SHORT
4.1 days to cover · settled 2026-07-31
THE SITUATION · EVERY LINE IS ONE RULE OVER ONE DATASET
45 funds added or opened positions in the latest 13F quarter, of 102 holders.
Achillefs Konstantakopoulos disclosed a 5%+ stake (20.5%) in the last six months.
The year, with the filings on it
Total return indexed to 100 over the last 12 months · every marker is a federal filing, placed at its date — hover any marker for the detail
TOTAL 12M RETURN +120.1%
+120.1%12M
+0%+40%+80%+120%2025-092025-102025-122026-032026-052026-072026-09 2026-08-06 · Zikos Grigorios sold $442.9K2026-03-27 · Eleftheriou Katerina bought $9822026-07-20 · Achillefs Konstantakopoulos filed a 5%+ stake (20.5%)2026-07-20 · Costamare Shipping Services Ltd. filed a 5%+ stake (3.3%)2026-08-06 · DILOFO HOLDINGS LIMITED filed to sell $442.9K
INSIDER BUYINSIDER SELL13D/G STAKEFORM 144
INDEXED RETURN, DIVIDEND-ADJUSTED — NOT A PRICE CHART · LARGE TRADES DRAWN FIRST WHEN A NAME FILES HEAVILY
Live price
Daily candles from TradingView, on their licence — no filings are marked on this one
WHY THIS NAME IS ON THE DESK
An activist crossed the 5% line with declared intent.
The record shows a net $441.9K sold by insiders over 180 days, 45 funds added last quarter, $442.9K in planned Form 144 sales. Every figure is a federal filing, dated the day it became public.
Same sector, ranked by filing activity
Sector from the SEC's own SIC classification
Insider transactions
Form 4 purchases and sales (codes P and S) — grants, option exercises and preferred conversions excluded

Over the last 180 days, Costamare Bulkers Holdings Ltd insiders sold a net $441.9K of stock across 2 Form 4 purchases and sales, with 1 insider(s) buying. Source: SEC Form 4 filings, as of 2026-09-05.

INSIDER
FILED
SHARES
VALUE
Zikos Grigorios
Chief Executive Officer
SELL
2026-08-06
24,203.0
$442.9K
Eleftheriou Katerina
Director
BUY
2026-03-27
65.0
$982
2 TRANSACTIONS ON RECORD · THIN RECORD, READ IT AS SUCH

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Institutional holders
13F · holdings as of the latest quarter funds have reported
DIMENSIONAL FUND ADVISORS LP
1,294,494.0 sh
$22.7M
BlackRock, Inc.
556,263.0 sh
$9.8M
AMERIPRISE FINANCIAL INC
425,412.0 sh
$7.5M
AMERICAN CENTURY COMPANIES INC
317,984.0 sh
$5.6M
Oceanic Investment Management LTD
277,778.0 sh
$4.9M
5%+ owners
13D = intent to influence · 13G = passive
Achillefs Konstantakopoulos
ACTIVIST 13D · 2026-07-20
20.5%
Costamare Shipping Services Ltd.
ACTIVIST 13D · 2026-07-20
3.3%
Planned sales · Form 144
Filed before the sale — intent, not a trade
DILOFO HOLDINGS LIMITED
FILED 2026-08-06
$442.9K
Fund concentration
N-PORT · funds ranked by how much of THEMSELVES they put in this stock — the conviction number 13F cannot show
SIIT SMALL CAP FUND
$189.1K POSITION · AS OF 2026-02-28
0.1%
SIIT SMALL CAP II FUND
$211.7K POSITION · AS OF 2026-02-28
0.1%
Longboard Fund
$69.8K POSITION · AS OF 2026-02-28
0.1%
SIMT Small Cap Fund
$122.0K POSITION · AS OF 2026-03-31
0.0%
Dimensional US Small Cap Value ETF
$1.8M POSITION · AS OF 2026-04-30
0.0%
Avantis U.S. Small Cap Value ETF
$5.1M POSITION · AS OF 2026-02-28
0.0%
SEC N-PORT, MONTHLY WITH A ~60-DAY PUBLIC LAG · FUNDS ≥ $10M · % = SHARE OF THE FUND'S OWN BOOK
Fundamentals
Annual figures from XBRL filings · pick a past date to see them exactly as the market knew them then — restatements and all
2025-122024-122023-12
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
LONG-TERM DEBT$140.6M$0
SEC XBRL · FISCAL-YEAR PERIODS · AS KNOWN ON 2026-09-05 · NOBODY ELSE SHOWS FUNDAMENTALS AS OF A PAST DATE
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Public filings, honestly analyzed. Official US government sources in one desk — every figure carries the date it was filed, and the methodology is published, backtest included.

SEC FORM 4FORM 13F 13D/GFORM 144XBRL STOCK ACTCONTRACTSFEC CFPBNRC
© 2026 WAVEMAN · SOURCE: SEC EDGAR & OFFICIAL GOVERNMENT DATA · NOT INVESTMENT ADVICE · CHART BY TRADINGVIEW · UPDATED 2026-09-05 ALL SYSTEMS LIVE FOR MACHINES →