New York-based hedge fund BlueMountain Capital Management remains a major private investor in shipping more than a year after parting with its industry specialist, but recent filings reveal further departures of maritime-savvy managers.

The Andrew Feldstein-led fund continues to hold significant stakes in companies such as Gener8 Maritime, Overseas Shipholding Group (OSG) and International Seaways, although some observers wonder whether it is just biding time until it can complete a shipping exit.