Shipping billionaire Idan Ofer continues to up his ownership in Ireland-based product tanker owner Ardmore Shipping.

In a US Securities and Exchange Commission filing, the Israeli shipowner reveals he now controls 10.55% of the New York-listed company.

The 3.625m shares are owned by EPS Ventures, which is wholly owned by Quantum Pacific Shipping, a discretionary trust in which Ofer is the beneficiary.