Oaktree Capital has snapped up another batch of Eagle Bulk Shipping shares to continue a flurry of investment activity in the shipowner by its largest shareholder.

Oaktree took $45.5m of Eagle’s new convertible bond launched last week to fund the purchase of six ultramaxes and has been a regular buyer of the stock for several months.

This week, with analysts upgrading their profit forecasts after the $122m acquisition,...