X0306 4 2015-06-19 0 0001121702 METABOLIX, INC. MBLX 0001377832 Strobeck Matthew C/O METABOLIX, INC. 21 ERIE STREET CAMBRIDGE MA 02139 1 0 0 0 Common Stock 2015-06-19 4 P 0 101970 3.32 A 1486136 D Common Stock 2015-06-19 4 P 0 43700 3.32 A 710366 I Owned by Birchview Fund LLC Common Stock 66664 I Owned as custodian Common Stock 14949 I By spouse as custodian UGMA for children Common Stock 6819 I As trustee Common Stock Warrants 3.98 2015-06-19 4 P 0 91773 .125 A 2015-06-29 2019-06-29 Common Stock 91773 91773 D Common Stock Warrants 3.98 2015-06-19 4 P 0 39330 .125 A 2015-06-19 2019-06-19 Common Stock 39330 39330 I By Birchview Fund, LLC The reported securities are included in 101,970 units of Issuer securities (the "Units") purchased by the reporting person for $3.4325 per Unit pursuant to a Securities Purchase Agreement, dated June 15, 2015 (the "Securities Purchase Agreement") by and among the Issuer, the reporting person and certain other qualified institutional and individual investors. Each Unit consists of one share of the Issuer's Common Stock, par value $0.01 per share ("Common Stock") and and nine-tenths of a Common Stock warrant to purchase one share of Common Stock at an exercise price of $3.98 per share (subject to adjustment in the event of stock splits, stock dividends, reclassifications and the like). The reported securities are included in 43,700 Units purchased by Birchview Fund, LLC (the "Fund") for $3.4325 per Unit pursuant to the Securities Purchase Agreement. Mr. Strobeck is the sole member of Birchview Capital GP, LLC (the "GP"), the general partner of Birchview Capital, LP (the "Investment Manager"), which is the investment Manager of the Fund) and the sole member of Birchview Partners, LLC (the "Manager"), which is a member of the Fund. Mr. Strobeck disclaims Section 16 beneficial ownership of the shares of Common Stock held by the Fund (collectively, the "Fund Shares") and this report shall not be deemed an admission that such reporting person is the beneficial owner of such Fund Shares, except to the extent of his pecuniary interest, if any, in the Fund Shares by virtue of his membership interest in the GP. The shares of Common Stock reported herein give effect to the 1-for-6 reverse stock 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. The reported securities are held in accounts for minor children for which the reporting person serves as a custodian. The reporting person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose. The reporting person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose. These shares are held indirectly by a trust for the benefit of the reporting person's children. The reporting person is a trustee of the trust. The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest in them. /s/ Sarah P. Cecil, attorney-in-fact 2015-06-23