X0306 4 2015-08-28 0 0001121702 METABOLIX, INC. MBLX 0001045463 SCULLY WILLIAM P 771 MANATEE COVE VERO BEACH FL 32963 0 0 1 0 Common Stock 2015-08-28 4 P 0 26600 1.9944 A 2959933 D The shares of Common Stock reported herein give effect to the 1-for-6 reverse split which became effective in accordance with the terms of the Certificate of Amendment to the Company's Amended and Restated Certificate of Incorporation filed with the Secretary of State of Delaware on May 26, 2015. /s/ William P. Scully 2015-09-01