SEC Filings Annuals and Proxies Quarterly Results Key Ratios

2018 Proxy Materials

2018 Annual Meeting of Stockholders

April 19, 2018 at 10:00 a.m. ET

To attend the virtual meeting, please visit the following site: www.virtualshareholdermeeting.com/MRNS2018

Click here to vote your shares or request a paper or email copy of the Company's proxy materials for the 2018 annual meeting of stockholders.

Please have your 16-digit control number in hand when you click the above link. Your 16-digit control number is printed on your proxy card or notice of internet availability of proxy materials, whichever you have received.

Information About Notice and Access

The Company has adopted the SEC's "Notice and Access" process which allows the Company to make its proxy materials available to stockholders electronically through the Internet, rather than sending out printed copies of its proxy materials in the mail. Adopting this process allows the Company to significantly reduce the environmental impact of printing and mailing its proxy materials while reducing its overall costs. Stockholders who would like to receive a printed copy of the Company's proxy materials may do so by following the instructions on their notice of internet availability of proxy materials or by clicking here.