Davis, California, USA
March 30, 2020

Form S-1 Resale Registration Statement Permits Resale of Common Stock from Prior Financing Transactions; No new securities are being offered

Marrone Bio Innovations, Inc. (Nasdaq: MBII) (MBI),  a leading provider of effective and environmentally responsible pest management and plant health products, announced today that its Form S-1 resale registration statement relating to the potential resale of shares of common stock, including common stock issuable upon the exercise of warrants, held by certain shareholders of the Company has been declared effective by the U.S. Securities and Exchange Commission (“SEC”) on March 30, 2020.

"This registration statement was filed to comply with the terms of our private placement and debt refinancing transactions that we completed in February 2018, as well as the warrant financing transactions we previously announced in August 2019," said Jim Boyd, the Company's Chief Financial Officer. "We are not offering any new securities, and we will not receive any proceeds from the resale of stock under this Form S-1. However, because this registration statement is now effective, we may continue to receive proceeds from the cash exercise of warrants issued in February 2018 and issuable under our warrant facility."

Securities registered pursuant to the registration statement are not required to be sold, and the registration of the securities does not necessarily indicate that any stockholder intends to sell its securities. The registration statement, while effective, permits resale of the securities already issued or issuable from warrants and covered by the registration statement, subject to the satisfaction by the seller of the securities with the prospectus delivery requirements of the Securities Act of 1933.

The offering of the securities covered by the registration statement may only be made by means of a prospectus. The registration statement and prospectus may be accessed through the SEC’s website at www.sec.gov. A copy of the prospectus related to the offering may be obtained from Marrone Bio Innovations, Inc., 1540 Drew Avenue, Davis, California 95618, Attention: Investor Relations, or by calling (530) 750-2800.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy any securities, nor shall there be any sale of the securities in any state or jurisdiction in which the offer, solicitation, or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

Website: http://marronebioinnovations.com/

Published: March 31, 2020