Ken Griffin acquired 404 Thousand AMBAC Financial Group shares worth $5.88 Million. That's 0.01% of their equity portfolio (1426th largest holding). The first AMBAC Financial Group trade was made in Q2 2013. Since then Ken Griffin bought shares 58 more times and sold shares on 39 occasions. The investor's estimated purchase price is $5.97 Million, resulting in a loss of 1.6%.