Apple spent over $500 million on acquisitions in Q4 2013

"The iPhone maker said in a Jan. 28 regulatory filing that it paid $525 million on deals last quarter, almost double what was spent a year earlier.
The deals show Cook putting Apple’s $159 billion of cash and investments to work snapping up companies whose products can be integrated into future gadgets or services. The acquisitions, typically small, included PrimeSense Ltd., the maker of motion-tracking chip technology; Topsy Labs Inc., a data-analytics firm; search engine Cue; and mapping software company Broadmap."

Source:  Bloomberg, 30th January 2014