Shipping billionaire John Fredriksen has responded to moves by the rival Saverys family to up its stake in merger target Euronav.

As Fredriksen tries to seal a deal to combine his Frontline with the Belgian tanker owner, a new US securities filing has revealed one of his private companies has added to its holding in Euronav for the first time this year.

The magnate bought a stake of 9.8% by the end of 2021, making him the biggest shareholder, but this had since fallen to 9% as the Saverys clan rebuilt their holding to 16.49%