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UNITED STATES SECURITIES AND EXCHANGE COMMISSION
 Washington, DC 20549
 Form 10-K/A
 Amendment No. 1
 FOR ANNUAL AND TRANSITION REPORTS
PURSUANT TO SECTIONS 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934
  þ
    
    ANNUAL REPORT PURSUANT TO SECTION 13 OR
15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
 For the year ended December 31, 2006
 or
 o
    
    TRANSITION REPORT PURSUANT TO SECTION 13
OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
 For the transition period from            to
 Commission file number: 0-50440
 Micromet, Inc.
 (Exact name of registrant as specified in its charter)
 Delaware
    
    52-2243564(State or other jurisdiction of 
incorporation or organization)
    
    (I.R.S. Employer
Identification No.)6707 Democracy Boulevard, Suite 505, Bethesda, MD
    
    20817(Address of principal executive offices)
    
    (Zip Code)
 (760) 494-4200  (Registrants telephone number, including area code)
 Securities registered pursuant to Section 12(b) of the Act:
 Title of Each Class
Common Stock, par value $0.00004 per share
    
    Name of Each Exchange on Which Registered
Nasdaq Global Market
 Securities registered pursuant to Section 12(g) of the Act:
None
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  o þ o
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   DOCUMENTS INCORPORATED BY REFERENCE




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MICROMET, INC.
 AMENDMENT NO. 1 TO THE
ANNUAL REPORT ON FORM 10-K
FOR THE YEAR ENDED DECEMBER 31, 2006
 Explanatory Note
  1




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Table of Contents
 PART IIItem 9A. Controls and Procedures
    
    
    2PART IVItem 15. Exhibits and Financial Statement Schedules
    
    
    6Signatures
    
    
    7
 2




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PART II
 Item 9A. Controls and Procedures
 Evaluation of Disclosure Controls and Procedures
      Managements Report on Internal Control Over Financial Reporting
  3




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
    
    Inadequate Procedures Around Estimation and Accruals.
As a result of errors identified in estimates around
accrued liability accounts, we have concluded that
controls over our estimation and analyses processes were
not effective and are indicative of a material weakness.
We over-accrued certain research and development costs
and we under-accrued travel, legal and certain research
and development costs. The effect of these accrual
errors required an audit adjustment to accruals that was
material to the consolidated financial statements.
    
    Invoicing Error in Licensee Milestone.A milestone
invoice to one of our single-chain antibody licensees
was prepared by our accounting staff in the wrong
currency, approved and mailed to the licensee. As a
result, we have concluded that the controls over the
analysis and recording of revenue transactions with
unusual terms were not effective, and are indicative of
a material weakness in revenue accounting controls.
    
    Inadequate Management Review.As a result of errors
identified by our independent registered public
accounting firm in our financial close process and
disclosures and amounts in our annual report on Form
10-K subsequent to our financial statement review
process but prior to filing of our Form 10-K, we have
concluded that controls over our financial statement
close and reporting process are not effective, and are
indicative of a material weakness.
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Report of Independent Registered Public Accounting Firm on Internal Control over Financial Reporting
 
      
    
    Controls over the Companys estimation and analyses
processes for accruals were not effective and are
indicative of a material weakness. The effect of these
accrual errors required an audit adjustment to accruals
that was material to the financial statements.
    
    Controls over the analysis and recording of revenue
transactions with unusual terms were not effective and
are indicative of a material weakness.
    
    Controls over the Companys financial statement close
and reporting process are not effective, and are
indicative of a material weakness.
   
 5




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Managements Remediation Plan
   
    
    hiring a chief financial officer with significant U.S. public company experience in October 2006;
    
    implementing additional preparation, review and approval procedures over estimations and accruals;
    
    improving our procedures for verifying and documenting contract terms and implementing of a
company-wide contract management system to facilitate the flow of information amongst various
functional departments;
    
    formalizing process and documentation related to financial statement closing and consolidation
review, including more frequent interaction across all members of our financial staff involved in
preparation of financial statements and a review of those financial statements by the entire
staff as a group;
    
    formalizing and enhancing documentation, oversight and review procedures related to accounting
records of Micromet AG to ensure compliance with U.S. generally accepted accounting principles;
    
    reviewing and making appropriate staffing adjustments at all company locations to enhance
accounting expertise;
    
    supplementing our accounting staff to improve the breadth and depth of experience;
    
    engaging qualified accounting and tax consultants to aid us in the implementation of procedures
and policies; and
    
    improving training for, and integration and communication among, accounting staff.
  Changes in Internal Control over Financial Reporting
  6




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PART IV
 Item 15. Exhibits and Financial Statement Schedules
 (a) (3) Exhibits
 ExhibitNumber
    
    Description23.1
    
    Consent of Independent Registered Public Accounting Firm31.1
    
    Certification of principal executive officer pursuant to Rules
13a-14 and 15d-14 promulgated under the Securities Exchange Act of
193431.2
    
    Certification of principal financial officer pursuant to Rules
13a-14 and 15d-14 promulgated under the Securities Exchange Act of
193432**
    
    Certifications of principal executive officer and principal
financial officer pursuant to 18 U.S.C. Section 1350, as adopted
pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
 
 **
    
    These certifications are being furnished solely to accompany this
quarterly report pursuant to 18 U.S.C. Section 1350, and are not being
filed for purposes of Section 18 of the Securities Exchange Act of
1934 and are not to be incorporated by reference into any filing of
the Registrant, whether made before or after the date hereof,
regardless of any general incorporation language in such filing. 7




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SIGNATURES
  MICROMET, INC.By:
    /s/  CHRISTIAN ITINChristian ItinPresident and Chief Executive Officer
(Principal Executive Officer)By:
    /s/  CHRISTOPHER P. SCHNITTKERChristopher P. SchnittkerSenior Vice President and Chief Financial Officer

(Principal Financial and Accounting Officer)   Name
    
    Title
    
    Date/s/ CHRISTIAN ITIN

Christian Itin
    
    President, Chief Executive Officer and Director
(Principal Executive Officer)
    
    May 10, 2007/s/ CHRISTOPHER P. SCHNITTKER

Christopher P. Schnittker
    
    Senior Vice President and
Chief Financial Officer
(Principal Financial and Accounting Officer)
    
    May 10, 2007*

David F. Hale
    
    Director
Chairman of the Board of Directors
    
    May 10, 2007*

Jerry C. Benjamin
    
    Director
    
    May 10, 2007*

John E. Berriman
    
    Director
    
    May 10, 2007*

Michael G. Carter
    
    Director
    
    May 10, 2007*

Peter Johann
    
    Director
    
    May 10, 2007*

Barclay A. Phillips
    
    Director
    
    May 10, 2007*

Phillip M. Schneider
    
    Director
    
    May 10, 2007*

Otello Stampacchia
    
    Director
    
    May 10, 2007* By /s/ CHRISTOPHER P. SCHNITTKER

Attorney-in-Fact
    
    
    
    May 10, 2007
 8




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Exhibit List
 ExhibitNumber
    
    Description23.1
    
    Consent of Independent Registered Public Accounting Firm31.1
    
    Certification of principal executive officer pursuant to Rules
13a-14 and 15d-14 promulgated under the Securities Exchange Act of
193431.2
    
    Certification of principal financial officer pursuant to Rules
13a-14 and 15d-14 promulgated under the Securities Exchange Act of
193432**
    
    Certifications of principal executive officer and principal
financial officer pursuant to 18 U.S.C. Section 1350, as adopted
pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
 
 **
    
    These certifications are being furnished solely to accompany this
quarterly report pursuant to 18 U.S.C. Section 1350, and are not being
filed for purposes of Section 18 of the Securities Exchange Act of
1934 and are not to be incorporated by reference into any filing of
the Registrant, whether made before or after the date hereof,
regardless of any general incorporation language in such filing. 9