Shareholders to Receive Costamare Bulkers Shares in May Spin-Off Costamare Inc. will distribute one share of the newly formed Costamare Bulkers Holdings for every five shares held as of April 29, 2025. The spin-off, set for May 6, aims to create two focused shipping companies, with Costamare Bulkers debuting on the NYSE under 'CMDB' on May 7.123