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Costamare CMRE

US equityMarket cap rank #2830Marine ShippingRed Sea Shipping Crisis
$15.39 −$0.05 (-0.32%)
Market closed · Oct 6, 4:10 am ET · Last extended-hours $15.39 0.00%
Open$15.44
Prev close$15.44
Day range$14.96 – $15.53
Volume394.3K
Market cap$1.86B
P/E (TTM)5.8
Dividend yield2.99%

Ownership & positioning

Who holds it, who is betting against it, and where the big money is moving

Institutional ownership37.2%-0.37 pts vs. prior quarter
Institutions holding236-2 vs. prior quarter
Insider trades (recent)3 buys / 41 sellsNet selling
Short interest2.03% of floatDays to cover 6.6 · as of 15 Sep 2026
Short-sale volume share17.7%5-day average of daily volume

Short-sale volume as % of daily volume

12%20%28%36%Sep '26Sep '26Oct '26

Large-order net flow, last 20 sessions

Net of large-order buying minus selling, in USD. Over this window: +$738.5K (9 inflow days, 11 outflow days).

The five largest holders on file together own 67.6% of shares outstanding.

Largest holders

  • Konstantinos Konstantakopoulos24.91%
  • Achillefs Konstantakopoulos18.71%
  • Christos Konstantakopoulos14.73%
  • Dimensional Fund Advisors6.15%
  • Costamare Shipping Services Ltd.3.14%
  • BlackRock2.97%
  • Acadian Asset Management LLC2.79%
  • American Century Investment Management1.66%

By investor type

  • Individual/Insider58.38%
  • Mutual Fund27.84%
  • Private Company3.60%
  • Hedge Fund3.59%
  • Public Company1.61%
  • Government Pension Fund0.49%
  • Family Office/Trust0.05%
  • Sovereign Wealth Fund0.02%

Reported short interest has risen from 1.88% to 2.03% of float over the last 6 biweekly reports (30 Jun 2026 to 15 Sep 2026).

Short interest, by report

Report dateShares short% of floatDays to cover
15 Sep 2026 2,456,391 2.0% 6.6
31 Aug 2026 2,350,720 1.9% 6.5
14 Aug 2026 2,076,909 1.7% 6.3
31 Jul 2026 2,056,221 1.7% 5.7
15 Jul 2026 2,171,375 1.8% 5.5
30 Jun 2026 2,272,385 1.9% 4.1

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