Joel Greenblatt acquired 7.29 Thousand Aon plc. - Ordinary Shares shares worth $2.4 Million. That's 0.04% of their equity portfolio (548th largest holding). The first Aon plc. - Ordinary Shares trade was made in Q2 2020. Since then Joel Greenblatt bought shares seven more times and sold shares on seven occasions. The stake costed the investor $1.75 Million, netting the investor a gain of 38% so far.