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 *
  Alvarez-Masterton Sharon Rose
2. Date of Event Requiring Statement (Month/Day/Year)
01/14/2008
3. Issuer Name and Ticker or Trading Symbol
MICROMET, INC. [MITI]
(Last)
(First)
(Middle)
13-15 VICTORIA ROAD, 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, X0 
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ 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 3,257,936
I
By Fund (1)
Common Stock 1,634,877 (2)
I
By Fund (3)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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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
Common Stock Warrants (right to buy) 12/19/2007 12/19/2012 Common Stock 817,439 (4) $ 3.09 I By Fund (3)

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Alvarez-Masterton Sharon Rose
13-15 VICTORIA ROAD
ST PETER PORT
GUERNSEY, GY1 3ZD, X0 
    X    

Signatures

/s/ Sharon Rose Alvarez-Masterton 01/16/2008
**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) The reported securities are owned directly by Omega Fund I, L.P. ("Omega I"). Omega I, Omega Fund GP, Ltd. ("Omega GP"), Omega Fund Management Limited ("Omega Management") and Sigma Holding Limited ("Sigma") have previously reported as ten percent owners. Sharon Rose Alvarez-Masterton ("Alvarez-Masterton") is a ten percent holder, and she is a director of each of (i) Omega GP, which is the general partner of Omega I, (ii) Omega Management, which is the sole shareholder of Omega GP and (iii) Sigma, which is the sole shareholder of Omega Management. Alvarez-Masterton disclaims beneficial ownership of the reported securities except to the extent of her pecuniary interest therein.
(2) All shares reported herein reflect an issuance of Common Stock by the Issuer on June 22, 2007.
(3) The reported securities are directly held by Omega Fund III, L.P. ("Omega III"). Omega Fund III GP, L.P. ("Omega III GPLP") is the general partner of Omega III. Omega Fund III G.P., Ltd. ("Omega III GPLtd") is the general partner of Omega III GPLP. Omega Management is the sole shareholder of Omega III GPLtd. Sigma is the sole shareholder of Omega Management. Alvarez-Masterton is a director of each of (i) Omega III GPLtd, (ii) Omega Management, and (iii) Sigma. Alvarez-Masterton disclaims beneficial ownership of the reported securities except to the extent of her pecuniary interest therein.
(4) All shares reported herein reflect an issuance of Warrant in connection with the issuance of Common Stock on June 22, 2007.

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