SEC FORM 3

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^*

Snell Kristi

(Last)

(First)

(Middle)

C/O METABOLIX, INC.

19 PRESIDENTIAL WAY

(Street)

WOBURN

01801

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
10/17/2016

3. Issuer Name and Ticker or Trading Symbol
METABOLIX, INC. [ MBLX ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	VP Research & CSO

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	18,208	D
Common Stock	23,700	I	By 401(k) Plan⁽¹⁾
Common Stock	43,749⁽⁶⁾	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)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	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)
Stock Option (right to buy)	⁽²⁾	03/05/2018	Common Stock	417	$90	D
Stock Option (right to buy)	⁽²⁾	05/30/2018	Common Stock	2,500	$67.32	D
Stock Option (right to buy)	⁽²⁾	10/21/2018	Common Stock	1,400	$54.72	D
Stock Option (right to buy)	⁽²⁾	08/21/2019	Common Stock	1,333	$63.24	D
Stock Option (right to buy)	⁽²⁾	02/12/2020	Common Stock	1,667	$58.62	D
Stock Option (right to buy)	⁽²⁾	02/11/2021	Common Stock	1,667	$54.72	D
Stock Option (right to buy)	⁽²⁾	02/01/2022	Common Stock	3,334	$15.96	D
Stock Option (right to buy)	⁽²⁾	05/31/2022	Common Stock	3,334	$12	D
Stock Option (right to buy)	⁽²⁾	09/18/2022	Common Stock	10,000	$9.3	D
Stock Option (right to buy)	⁽³⁾	02/13/2023	Common Stock	1,667	$10.08	D
Stock Option (right to buy)	⁽⁴⁾	07/22/2023	Common Stock	4,167	$8.88	D
Stock Option (right to buy)	⁽⁵⁾	02/24/2024	Common Stock	5,001	$7.74	D

Explanation of Responses:

1. Shares acquired as Company matching contributions under the Metabolix, Inc. 401(k) Plan.

2. This option is fully vested and exercisable.

3. This option vests and becomes exercisable in 16 equal quarterly installments over a period of 4 years from 2/13/13.

4. This option vests and becomes exercisable in 16 equal quarterly installments over a period of 4 years from 7/22/13.

5. This option vests and becomes exercisable in 16 equal quarterly installments over a period of 4 years from 2/24/14.

6. These securities are in the form of restricted stock units ("RSUs") issued under the Issuer's 2014 Stock Option and Incentive Plan. Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs will vest in three equal annual installments on 4/1/17, 4/1/18 and 4/1/19. All RSUs that have not vested will terminate upon the reporting person's termination of employment with the Issuer and its subsidiaries.

	/s/ Sarah P. Cecil, attorney-in-fact	10/26/2016
	** 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.