Andreas Halvorsen's position in Aon plc. is currently worth $257 Million. That's 0.84% of their equity portfolio (39th largest holding). The first Aon plc. trade was made in Q2 2020. Since then Andreas Halvorsen bought shares six more times and sold shares on five occasions. The stake costed the investor $242 Million, netting the investor a gain of 6.3% so far.