Nicolai Tangen runs a company of superlatives. The Norwegian state investment fund, officially known as Norges Bank Investment Management (NBIM), has investments in more than 9,000 companies worldwide and holds 1.5 percent of the world’s listed shares – more than any other individual investor on the planet.

And he knows how to use his influence. The times of the stoic Northerners are over – the largest shareholder on the planet has risen to become the disciplinarian of the boardrooms of many companies worldwide.