Notes: January 15, 2020 - Yield10 Bioscience, Inc. (Nasdaq:YTEN), an agricultural bioscience company that uses its “Trait Factory” to develop high value seed traits for the agriculture and food industries, today announced that it will effect a 1-for-40 reverse stock split of its common stock, following stockholder approval of the reverse stock split at the Company's special stockholders meeting held on January 9, 2020. The 1-for-40 reverse stock split will be effective as of the close of business on Wednesday, January 15, 2020 and the Company's common stock will begin trading on a split-adjusted basis on Thursday, January 16, 2020. The reverse stock split is intended to increase the market price per share of the Company’s common stock to allow the Company to maintain the listing of its common stock on The Nasdaq Capital Market. The Company's common stock will continue to trade on The Nasdaq Capital Market under the symbol "YTEN." The new CUSIP number for the common stock following the reverse stock split will be 98585K862. _______________ May 30, 2017 -- Yield10 Bioscience, Inc. (YTEN) will effect a one-for-ten (1-10) reverse split of its common stock. The reverse split, the CUSIP number will change to 98585K201._______________Jan. 06, 2017 -- Metabolix, Inc. (NASDAQ: MBLX), announced today that the Company is changing its name to Yield10 Bioscience, Inc., effective January 9, 2017 to reflect the new mission and strategic direction of the business. Yield10 will focus on developing disruptive technologies for step-change improvements to crop yield to enhance global food security. In connection with the new name, the Company has unveiled a new corporate identity, NASDAQ ticker symbol and website, available at www.Yield10bio.com. Effective at market open on Monday, January 9, 2017, trading for Yield10 Bioscience will begin under the symbol "YTEN" (NASDAQ:YTEN). The Company's common stock will continue to trade under the ticker symbol "MBLX" on The NASDAQ Capital Market until market close on Friday, January 6, 2017. The name change does not affect the rights of the Company's stockholders. No action is required by stockholders with respect to the name change. The Company's common stock has been assigned a new CUSIP number of 98585K102 in connection with the name change. Outstanding stock certificates are not affected by the name change and will not need to be exchanged. ____________ May 26, 2015 -- Metabolix, Inc. (MBLX) will effect a one for six (1-6) reverse stock split of its outstanding common stock. The reverse split will be effective at the opening of business on Wednesday, May 27, 2015. In conjunction with the reverse split, the CUSIP number will change to 591018882.