Edgar Filing: MICROMET, INC.

Ownership Submission

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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person ^*

Â Omega Fund I, L.P.

2. Date of Event Requiring Statement (Month/Day/Year)
05/05/2006

3. Issuer Name and Ticker or Trading Symbol
MICROMET, INC. [MITI]

(Last)

(First)

(Middle)

13-15 VICTORIA ROAD,Â ST PETER PORT

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

_____ Director	__X__ 10% Owner
_____ Officer (give title below)	_____ Other (specify below)

5. If Amendment, Date Original Filed(Month/Day/Year)

(Street)

GUERNSEY, GY1 3ZD,Â X0Â

6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person

(City)

(State)

(Zip)

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	3,257,935 ⁽¹⁾	D ⁽²⁾ ⁽³⁾	Â

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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 of Derivative Security: 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

Reporting Owners

Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
Omega Fund I, L.P. 13-15 VICTORIA ROAD ST PETER PORT GUERNSEY, GY1 3ZD,Â X0Â	Â	Â X	Â	Â
Omega Fund GP, Ltd. 13-15 VICTORIA ROAD ST PETER PORT GUERNEY, GY1 3ZD,Â X0Â	Â	Â X	Â	Â
Omega Fund Management LTD 13-15 VICTORIA ROAD ST PETER PORT GUERNSEY, GY1 3ZD,Â X0Â	Â	Â X	Â	Â
Sigma Holding LTD 13-15 VICTORIA ROAD ST PETER PORT GUERNSEY, GY1 3ZD,Â X0Â	Â	Â X	Â	Â
Stampacchia Otello 12, RUE DE LA COULOUVRENIERE 1204 GENEVA,Â V8Â	Â X	Â X	Â	Â
Helyar Connie 13-15 VICTORIA ROAD ST PETER PORT GUERNSEY, GY1 3ZD,Â X0Â	Â	Â X	Â	Â
Guille Andrew 13-15 VICTORIA ROAD ST PETER PORT GUERNSEY, GY1 3ZD,Â X0Â	Â	Â X	Â	Â

Signatures

/s/ Andrew Guille, director of the general partner of Omega Fund I, L.P.		05/08/2006
^**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	All shares reported herein reflect a 1-for-3 reverse stock split effected by the Issuer on May 5, 2006.
(2)	This report is filed jointly by Omega Fund I, L.P. ("Omega"), Omega Fund GP, Ltd. ("Omega GP"), Omega Fund Management Limited ("Omega Management"), Sigma Holding Limited ("Sigma"), Otello Stampacchia ("Stampacchia"), Connie Helyar ("Helyar") and Andrew Guille ("Guille"), all of which are ten percent owners. Stampacchia is also a director of Micromet, Inc. The reported securities are owned directly by Omega. Helyar and Guille are directors of each of (i) Omega GP, which is the general partner of Omega, (ii) Omega Management, which is the sole shareholder of Omega GP and (iii) Sigma, which is the sole shareholder of Omega Management. Stampacchia is the sole shareholder of Sigma. Omega GP, Omega Management, Sigma, Stampacchia, Helyar and Guille disclaim beneficial ownership of the reported securities except to the extent of their pecuniary interest therein.
(3)	See Exhibit 99 for Joint Filer Information.

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