someone bought 19,659,438 shares at around $2.70. Roughly $53 million.
With a fixed ratio of .0392 to PNC, they could have gotten a discount to today's PNC price. This can translate into REALLY BIG savings on +19mil shares!
More so, they are probably thinking PNC will go much higher in the long run, especially since PNC got NCC at a steal, IMHO.