An engineer checking cable power lines. Image credit: iStock/Thinkstock.

AT&T's (NYSE:T) long history of success, coupled with its sizable dividend yield, has made the telecommunications company a favorite among leading investors and money managers. Its top five institutional shareholders own $36 billion worth of AT&T's outstanding common stock, equating to an ownership interest of 18%.

So, who are AT&T's five biggest shareholders? You can find the answer to this question in the brief slideshow below.

Slideshow data sourced from Yahoo! Finance and on December 10, 2015. Slideshow image credit: AT&T.