April 28 (Reuters) - NXP Semiconductors NV ( NXPI ) said

on Monday that its CEO Kurt Sievers will retire by the end of

the year, and Rafael Sotomayor, currently a Vice President at

the chipmaker, will succeed him.

Shares of the Eindhoven, Netherlands-based company fell

nearly 7% in extended trading.

Sotomayor will take on the role of the president effective

Monday and will assume the role of chief executive in October.