Hilarious!
http://247wallst.com/technology-3/2017/05/05/how-warren-buffetts-ibm-sale-hurts-the-dow-and-hurts-ginni-rometty/
"Buffett also told CNBC that Rometty asked if he had sold shares, as she had gotten reports that Buffett was selling his shares. Buffett then told CNBC that he didn’t tell her how many shares had been sold, nor the rationale or the share prices. Buffett said:
'Ginni Rometty was out a few weeks ago and actually they had had some stock watch. I don’t know your viewers are probably familiar with it but there are some stock watch firms. I don’t even know their names, I don’t know how many there are but they a lot of big companies use them. … Berkshire does not use them, and they report to management who they think is buying and selling. In fact, I don’t think I’ve ever even read a story on them or anything. I think it would be very interesting just to know who they are, how much they charge, how they get their information because we’ve had that happen 4 or 5 times that a management will say that they kind of wonder or they are sort of hearing or something of the sort that we might be buying or selling and like I say I don’t know quite how they get the information.'"