May 4 (Reuters) -
* Warren Buffett says he sold off about a third of his IBM stake in the 1st and 2nd quarters of 2017- CNBC
* Warren Buffett to CNBC - "I don't value IBM the same way that I did 6 years ago when I started buying... I've revalued it somewhat downward"
* Warren Buffett says about IBM stock, "When it got above $180 we actually sold a reasonable amount of stock." - CNBC