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As
filed with the Securities and Exchange Commission on April 23, 2010
   UNITED STATES SECURITIES AND EXCHANGE COMMISSION
 Washington, D.C. 20549
 
 FORM 20-F/A
 (AMENDMENT NO. 1)
 o
    
    REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g)
OF THE SECURITIES EXCHANGE ACT OF 1934
 OR
 þ
    
    ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934
 For the fiscal year ended September 30, 2009.
 OR
 o
    
    TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934
 For the transition period from
 to
 OR
 o
    
    SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934
 Date of event requiring this shell company report
 Commission file number: 1-15174
 Siemens Aktiengesellschaft
 (Exact name of Registrant as specified in its charter)
 Federal Republic of Germany
(Jurisdiction of incorporation or organization)
 Wittelsbacherplatz 2
D-80333 Munich
Federal Republic of Germany
Telephone: +49 (89) 636-00
(Address of principal executive offices)
  Name of each exchangeTitle of each class
    
    on which registeredAmerican Depositary Shares, each representing oneCommon Share, no par value
    
    New York Stock ExchangeCommon Shares, no par value*
    
    New York Stock Exchange
  
  
  
  
  o þ
 
  o þ
 
  þ o o
 
  o o
 
  Large accelerated filer þ   
    Accelerated filer o
    Non-accelerated filer o
    Smaller reporting company o(Do not check if a smaller reporting company)
  U.S. GAAP o
    
    International Financial Reporting Standards as issued
by the International Accounting Standards Board þ
    
    Other o
  o o
  o þ




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TABLE OF CONTENTS  EXPLANATORY NOTEPART IIIITEM 17. FINANCIAL STATEMENTSITEM 19: EXHIBITSSIGNATURESExhibit 12.1Exhibit 12.2Exhibit 13.1Exhibit 13.2Exhibit 15.4Exhibit 15.5    Table of Contents  
 EXPLANATORY NOTE
   
 PART III
 
 ITEM 17. FINANCIAL STATEMENTS




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ITEM 19: EXHIBITS
 ExhibitNumber
    
    Description of Exhibit1.1
    
    English translation of Articles of Association of Siemens
Aktiengesellschaft updated as of March 2009*2.1
    
    The total amount of long-term debt securities authorized
under any instrument does not exceed 10% of the total assets
of the Company on a consolidated basis. We hereby agree to
furnish to the Commission, upon its request, a copy of any
instrument defining the rights of holders of long-term debt
of Siemens Aktiengesellschaft or of its subsidiaries for
which consolidated or unconsolidated financial statements are
required to be filed.8.1
    
    List of Subsidiaries*12.1
    
    Certification of Chief Executive Officer pursuant to Section
302 of the Sarbanes-Oxley Act of 200212.2
    
    Certification of Chief Financial Officer pursuant to Section
302 of the Sarbanes-Oxley Act of 200213.1
    
    Certification of Chief Executive Officer pursuant to 18.
U.S.C. Section 1350, as adopted pursuant to Section 906 of
the Sarbanes-Oxley Act of 200213.2
    
    Certification of Chief Financial Officer pursuant to 18.
U.S.C. Section 1350, as adopted pursuant to Section 906 of
the Sarbanes-Oxley Act of 200215.1
    
    Consent of Ernst & Young GmbH Wirtschaftsprüfungsgesellschaft*15.2
    
    Consent of KPMG AG Wirtschaftsprüfungsgesellschaft*15.3
    
    Letter from KPMG AG Wirtschaftsprüfungsgesellschaft to the
Securities and Exchange Commission regarding Item 16F*15.4
    
    Consolidated financial statements and notes of Nokia Siemens
Networks B.V. for its fiscal years ended December 31, 2009 and
December 31, 2008 and its results of  operations and  cash flows
for the nine-month period ended December 31, 2007.15.5
    
    Consent of PricewaterhouseCoopers
Oy, independent registered
public accounting firm of Nokia Siemens Networks B.V.
 
 *
    
    Previously filed as an exhibit to the Companys 2009 Form 20-F. III-1




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SIGNATURES
  SIEMENS AKTIENGESELLSCHAFTDate: April 23, 2010
    /s/ Peter LöscherPeter LöscherPresident and Chief Executive Officer/s/ Joe KaeserJoe KaeserExecutive Vice President and Chief Financial Officer/s/ Dr. Klaus PatzakDr. Klaus PatzakCorporate Vice President and Controller III-2