Beneficial Stockholders

Most stockholders of Semtech Corporation hold their shares in street name through a stockbroker, bank or other nominee rather than directly in their own name on the books of the company. In that case, you are considered a beneficial owner of shares held in street name. In order to vote your shares, or to receive a paper or e-mail copy of the proxy materials, please visit www.proxyvote.com and follow the directions provided in the Notice of Internet Availability of Proxy Materials that was sent to you previously.

Registered Stockholders

If you hold your shares directly in your own name on the books of the company, you are considered a registered stockholder. In order to vote your shares, or to receive a paper or e-mail copy of the proxy materials, please visit www.investorvote.com/SMTC and follow the directions provided in the Notice of Internet Availability of Proxy Materials that was sent to you previously.

PLEASE NOTE: Only stockholders of record as of the company’s record date April 24, 2015 are entitled to vote at the 2015 annual meeting of stockholders.