Sarepta Therapeutics Inc

of Proxy

If you vote by proxy, you may revoke that proxy at any time before it is voted at the Annual Meeting. Stockholders of record may revoke a proxy by (i) sending to our corporate secretary at our principal executive office at 215 First Street, Cambridge, MA 02142, a written notice of revocation or duly executed proxy card, in either case bearing a later date, (ii) submitting another properly completed proxy over the Internet, (iii) submitting another proxy by telephone using the number provided on the Notice, or (iv) by voting during the online Annual Meeting. Participation in the online Annual Meeting will not, by itself, revoke a proxy. In order to be effective, all revocations or later-filed proxies delivered by mail must be delivered to our corporate secretary at our principal executive office at our Cambridge, Massachusetts address not later than 5:00 P.M. EDT on the business day prior to the day of the Annual Meeting.