Ken Griffin acquired 80.4 Thousand Public Storage. shares worth $20.9 Million. That's 0.02% of their equity portfolio (768th largest holding). The first Public Storage. trade was made in Q2 2013. Since then Ken Griffin bought shares 52 more times and sold shares on 46 occasions. The stake costed the investor $20.9 Million, netting the investor a gain of 0.1% so far.