Glenview started purchasing in late July, probably a tiny gamble they were taking on the house bill. But that didn't go through before the recess so it's a failed gamble.
The amount they bought is tiny given the amount of money they manage. They manage over $9 billion. They only bought $2.5 million worth of stock. To give you perspective, that is like a trader with $100,000 in trading capital buying only $27 worth of KVPHQ stock. It was obviously a tiny gamble they decided to take which is not paying off, but they hardly lose anything given how little money it is for them.
By the same token, they have deep enough pockets to come in and take the whole thing; lock, stock and barrel. In that case, the stock could easily jump 3 or 4 points giving them a nice profit. Kick Doooofis out and KV could roar back. Will it happen - who knows. But the money is there to pull it off if they wanted to do it.