But big questions still remain for the struggling computer technology company.

It’s been a big week for activist investors — with Bill Ackman resigning from J.C. Penney’s board and Carl Icahn taking a big stake in Apple.

It's been a busy day for some activist investors.

Carl Icahn used to buy companies and break them up. These days, he’s an activist investor, using large stakes to influence corporate strategy.

Mt. Sinai Medical School in New York renames itself after business magnate/corporate raider Carl Icahn after his $200 million donation.