Prem Watsa acquired 46.7 Million BlackBerry Ltd shares worth $322 Million. That's 10.65% of their entire equity portfolio (3rd largest holding). The investor owns 8.40% of the outstanding BlackBerry Ltd stock. The first BlackBerry Ltd trade was made in Q3 2013. Since then Prem Watsa bought shares two more times and sold shares on one occasions. The investor's estimated purchase price is $454 Million, resulting in a loss of 29%.