MIME 2018 Proxy Statement

them without instruction. If your ordinary shares are held through a broker, those ordinary shares will not be voted with regard to the other Resolutions unless you affirmatively provide the broker instructions on how to vote. Broker non-votes also will have no effect on the outcome of these proposals. Voting Instructions . . . . . . . . . . . . . . . . If you complete and submit your proxy voting instructions, the persons named as proxies will follow your instructions. If you submit proxy voting instructions but do not direct how your ordinary shares should be voted on each item, the persons named as proxies (provided he or she is not the chairman) will vote or abstain from voting at his or her discretion. Your proxy (provided he or she is not the chairman) will vote (or abstain from voting) as he or she thinks fit in relation to any other matter which is put before the Annual Meeting. If you appoint the chairman as your proxy on any resolution, he or she will vote in favour of the resolution. Voting Results . . . . . . . . . . . . . . . . . . . . We will announce preliminary results at the Annual Meeting. We will report final results by filing a Current Report on Form 8-K with the U.S. Securities and Exchange Commission (the “SEC”) within four business days after the Annual Meeting. If final results are not available at that time, we will provide preliminary voting results in the Form 8-K and will provide the final results in an amendment to the Form 8-K as soon as they become available. Additional Solicitation/Costs . . . . . . . . We are paying for the distribution of the proxy materials and solicitation of the proxies. As part of this process, we reimburse brokerage houses and other custodians, nominees and fiduciaries for their reasonable out-of-pocket expenses for forwarding proxy and solicitation materials to our shareholders. Proxy solicitation expenses that we will pay include those for preparation, mailing, returning and tabulating the proxies. Our directors, officers, and employees may also solicit proxies on our behalf in person, by telephone, email or facsimile, but they do not receive additional compensation for providing those services. Householding . . . . . . . . . . . . . . . . . . . . . Some banks, brokers, and other nominee record holders may be participating in the practice of “householding” proxy statements and annual reports. This means that only one copy of the Notice, Proxy Statement, and Annual Report on Form 10-K for the year ended March 31, 2018, as applicable, is being delivered to multiple shareholders sharing an address unless we have received contrary instructions. We will promptly deliver a separate copy of any of these documents to you if you write to us at Investor Relations at Mimecast Limited, 191 Spring Street, Lexington, Massachusetts 02421 USA, Attn: Robert Sanders, IR Contact, or email us at Investors@mimecast.com or call us at (800) 614-4530. If you want to receive separate copies of the Notice, Proxy Statement, or Annual Report on Form 10-K in the future, or if you are receiving multiple copies and would like to receive only one copy for your household, you should contact your bank, broker, or other nominee record holder, or you may contact us at the above address, email, or telephone number. 3