"if all csc is doing is buying shares, then why is kblb selling it to them at a 20 % discount?..why wouldnt kblb just sell the shares themselves into the open market and keep 100 % of the money?"
As you are very aware this question has been asked and answered many many times. I will suggest that you go back and find the answer for yourself. But hey, I will give you a clue....the answer has to do with daily trading volume and the fees associated with such sales from Kim's broker.