SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* BENJAMIN JERRY (Last) (First) (Middle) C/O ADVENT VENTURE PARTNERS 25 BUCKINGHAM GATE (Street) LONDON X0 SW1E 6LD (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol MICROMET, INC. [ MITI ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 09/12/2008
	4. 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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	09/12/2008		S		50,605	D	$6.025(1)	1,727,361	I	By fund(2)
Common Stock	09/12/2008		S		24,789	D	$6.025(1)	846,137	I	By fund(3)
Common Stock	09/12/2008		S		6,918	D	$6.025(1)	236,130	I	By fund(4)
Common Stock	09/12/2008		S		13,604	D	$6.025(1)	464,364	I	By fund(5)
Common Stock	09/12/2008		S		505	D	$6.025(1)	17,257	I	By fund(6)
Common Stock	09/12/2008		S		1,621	D	$6.025(1)	55,318	I	By fund(7)
Common Stock	09/12/2008		S		1,958	D	$6.025(1)	66,852	I	By fund(8)
Common Stock	09/15/2008		S		10,779	D	$6.001(9)	1,716,582	I	By fund(2)
Common Stock	09/15/2008		S		5,280	D	$6.001(9)	840,857	I	By fund(3)
Common Stock	09/15/2008		S		1,473	D	$6.001(9)	234,657	I	By fund(4)
Common Stock	09/15/2008		S		2,898	D	$6.001(9)	461,466	I	By fund(5)
Common Stock	09/15/2008		S		108	D	$6.001(9)	17,149	I	By fund(6)
Common Stock	09/15/2008		S		345	D	$6.001(9)	54,973	I	By fund(7)
Common Stock	09/15/2008		S		417	D	$6.001(9)	66,435	I	By fund(8)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Price reflected is the weighted-average sale price for shares sold. The range of sale prices for the transactions reported was $6.00 to $6.23 per share. The reporting persons undertake to provide, upon request by the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

2. These securities are held of record by Advent Private Equity Fund III 'A' Limited Partnership. The reporting person is a general partner of Advent Venture Partners LLP, which is the sole owner of the general partner of Advent Management III Limited Partnership, which is the general partner of Advent Private Equity Fund III 'A' Limited Partnership, and disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

3. These securities are held of record by Advent Private Equity Fund III 'B' Limited Partnership. The reporting person is a general partner of Advent Venture Partners LLP, which is the sole owner of the general partner of Advent Management III Limited Partnership, which is the general partner of Advent Private Equity Fund III 'B' Limited Partnership, and disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

4. These securities are held of record by Advent Private Equity Fund III 'C' Limited Partnership. The reporting person is a general partner of Advent Venture Partners LLP, which is the sole owner of the general partner of Advent Management III Limited Partnership, which is the general partner of Advent Private Equity Fund III 'C' Limited Partnership, and disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

5. These securities are held of record by Advent Private Equity Fund III 'D' Limited Partnership. The reporting person is a general partner of Advent Venture Partners LLP, which is the sole owner of the general partner of Advent Management III Limited Partnership, which is the general partner of Advent Private Equity Fund III 'D' Limited Partnership, and disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

6. These securities are held of record by Advent Management III Limited Partnership. The reporting person is a general partner of Advent Venture Partners LLP, which is the sole owner of the general partner of Advent Management III Limited Partnership, and disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

7. These securities are held of record by Advent Private Equity Fund III Affiliates Limited Partnership. The reporting person is a general partner of Advent Venture Partners LLP, which is the sole owner of the general partner of Advent Management III Limited Partnership, which is the general partner of Advent Private Equity Fund III Affiliates Limited Partnership, and disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

8. These securities are held of record by Advent Private Equity Fund III GmbH & Co. KG. The reporting person is a general partner of Advent Venture Partners LLP, which is the sole owner of the sole owner of the general partner of Advent Private Equity Fund III GmbH & Co. KG, and disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein.

9. Price reflected is the weighted-average sale price for shares sold. The range of sale prices for the transactions reported was $6.00 to $6.05 per share. The reporting persons undertake to provide, upon request by the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.

Remarks:

	/s/ Brian F. Leaf, attorney-in-fact	09/16/2008
	** 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 4 (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).
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