Prem Watsa acquired 18.8 Thousand GSK Plc shares worth $688 Thousand. That's 0.04% of their equity portfolio (29th largest holding). Prem Watsa acquired their 18.8 Thousand shares between 2007 and 2009. So far they never sold any shares in the company. The investor's estimated purchase price is $799 Thousand, resulting in a loss of 14%.