NEUROCRINE BIOSCIENCES INC

This summary highlights information that is described in more detail elsewhere in this proxy statement. This summary does not contain all the information you should consider before you vote, and you should read the entire proxy statement carefully before voting.

General Information

How to Vote

Your vote is very important. Whether or not you plan to attend the Annual Meeting, we hope you will vote as soon as possible. You may vote in the following ways:

Telephone: Call 1-800-690-6903 from any touch-tone telephone to transmit your voting instructions up until 11:59 P.M. Eastern Time the day before the meeting date. Have your proxy card in hand when you call and then follow the instructions. Easy-to-follow voice prompts allow you to submit your proxy and confirm your instructions have been properly recorded.

Internet: Visit www.proxyvote.com to transmit your voting instructions and for electronic delivery of information via the Internet up until 11:59 P.M. Eastern Time the day before the meeting date. As with telephone voting, you can confirm that your instructions have been properly recorded.

Mail: Mark, sign and date your proxy card and return it in the postage-paid envelope we have provided or return it to Vote Processing, c/o Broadridge, 51 Mercedes Way, Edgewood, NY 11717.

Matters to be Voted On