Nicolai Tangen has served as the Chief Executive Officer of Norges Bank Investment Management (NBIM) since September 2020. In this role, he is tasked with managing the Norwegian Sovereign Wealth Fund, which is recognized as the largest publicly held financial fund globally, owning approximately 1.4% of the world's listed companies. His appointment in 2020 was met with controversy, described by some sources as “the biggest crisis in the fund’s 24-year history.