Prem Watsa's position in Astrazeneca plc is currently worth $855 Thousand. That's 0.05% of their equity portfolio (28th largest holding). Prem Watsa acquired their 12.7 Thousand shares in Q4 2007. So far they never sold any shares in the company. The stake costed the investor $301 Thousand, netting the investor a gain of 184% so far.