Icahn Enterprises (IEP -8.87%) announced in a financial update Wednesday the net asset value of its holdings dropped significantly in the fourth quarter, though it did keep its quarterly dividend intact. Investors are viewing the glass as half-empty, sending shares of IEP down as much as 14% on Wednesday and off 8% as of 1 p.m. ET. Overhaul in the C-suite and falling values Carl Icahn is a legendary activist investor, but of late the focus has mostly been on activists questioning the investor's business set ...