Saverys family-controlled shipowner Compagnie Maritime Belge (CMB) has taken its stake in Euronav to more than 16% of outstanding shares as the battle for control of the Belgian tanker giant heats up.

CMB’s freshly reported total of 33.25m shares gives it 16.49% of the Hugo De Stoop-led tanker owner, a significant jump from the 14.39% it reported on 14 April and the 13.22% it held earlier in the month.