Proxy and Annual Meeting Materials

Entropic’s next Annual Meeting of Shareholders will be held at our corporate headquarters located at 6290 Sequence Drive, San Diego, California, at 2:00 p.m., Pacific Daylight Time, on Tuesday, May 14, 2013.

You can save Entropic postage and printing expense by consenting to receive your proxy statement, annual report to stockholders and related materials via the Internet. With your consent, you will receive e-mail notification when these documents are available electronically.

Visit www.proxyvote.com for detailed instructions on how to vote over the Internet. Before you vote, carefully review the proxy statement, annual report to stockholders and related materials. For your convenience, these materials may also be viewed by clicking the links below.