Synergy Management Services’ shipowning affiliate, Nautilus Holdings, filed for bankruptcy in a US court this week in a bid to bring disparate creditors together to continue a so-far thwarted effort to restructure several debt facilities, a restructuring executive for the company says.

Nautilus, which owns a fleet of 16 boxships ranging in size from 2,500 teu to 7,000 teu, is seeking to restructure nearly $770m of secured loan deals forged with HSH Nordbank, DVB Bank and Citibank, either alone or as leaders of syndicates, according to a declaration to the court by James Mesterharm.