Prem Watsa acquired 2.88 Million Progressive shares worth $748 Million. It makes up 40.88% of their stock portfolio and is their biggest holding. Prem Watsa acquired their 2.88 Million shares in Q4 2008. So far they never sold any shares in the company. The stake costed the investor $40.3 Million, netting the investor a gain of 1759% so far.