SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* Strobeck Matthew (Last) (First) (Middle) C/O METABOLIX, INC. 21 ERIE STREET (Street) CAMBRIDGE MA 02139 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 03/01/2012	3. Issuer Name and Ticker or Trading Symbol METABOLIX, INC. [ MBLX ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director 10% Owner Officer (give title below) Other (specify below)	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	200,000	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Sarah P. Cecil, attorney-in-fact	03/12/2012
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

Exhibit 24

POWER OF ATTORNEY

	KNOW ALL MEN BY THESE PRESENTS, that the undersigned
hereby constitutes and appoints Sarah P. Cecil, Charles A.
Haaser, Christopher J. Denn, John M. Mutkoski, and Joseph
Theis, and any one of them acting singly, the true and
lawful attorneys-in-fact and agents, with full power of
substitution and resubstitution, for the undersigned and in
the undersigned's name, place and stead, in any and all
capacities (until revoked in writing) to execute for and on
behalf of the undersigned, in any and all of the
undersigned's capacities, any and all statements on Forms
3, 4 and 5 with respect to the undersigned's holdings of
and transactions in securities issued by Metabolix, Inc.
(the "Company") in accordance with Sections 16(a) of the
Securities Exchange Act of 1934, as amended (the "Exchange
Act"), and any and all regulations promulgated thereunder,
and to file the same, with all exhibits thereto, and any
other documents in connection therewith, with the
Securities and Exchange Commission, and with any other
entity when and if such is mandated by the Exchange Act or
by the By-laws of the National Association of Securities
Dealers, granting unto said attorneys-in-fact and agents
full power and authority to do and perform each and every
act and thing requisite and necessary fully to all intents
and purposes as the undersigned might or could do in person
thereby ratifying and confirming all that said attorneys-
in-fact and agents, or their substitute or substitutes, may
lawfully do or cause to be done by virtue hereof.

	This Power of Attorney shall remain in full force and
effect until the undersigned is no longer required to file
Forms 3, 4 and 5 with respect to the undersigned's holdings
of and transactions in securities issued by the Company,
unless earlier revoked by the undersigned in a signed
writing delivered to the foregoing attorneys-in-fact.

	IN WITNESS WHEREOF, this Power of Attorney has been
signed as of March  1, 2012.


Signature:	/s/ Matthew Strobeck

Name:  Matthew Strobeck