Sec Form 3 Filing - SIEMENS AG @ Fluence Energy, Inc. - 2021-10-28

FORM 3 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

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, 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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1. Name and Address of Reporting Person SIEMENS AG 2. Issuer Name and Ticker or Trading Symbol Fluence Energy, Inc. [ FLNC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) WERNER-VON-SIEMENS-STRASSE 1, 3. Date of Earliest Transaction (MM/DD/YY) 10/28/2021 (Street) 80333 MUNICH, 2M 4. If Amendment, Date Original Filed (MM/DD/YY) 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 Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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 of Derivative Security: 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 LLC Units of Fluence Energy, LLC ( 1 ) ( 1 ) ( 1 ) Class A Common Stock 58,586,695 I See footnote ( 2 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other SIEMENS AG WERNER-VON-SIEMENS-STRASSE 1 80333 MUNICH, 2M X Siemens Industry, Inc. C/O SIEMENS AG WERNER-VON-SIEMENS-STRASSE 1 80333 MUNICH, 2M X Signatures Siemens AG, By: /s/ Christian Bleiweiss, Name: Christian Bleiweiss, Title: Chief Counsel Corporate, M&A, By: /s/ Hardi Zajewski, Name: Hardi Zajewski, Title: SVP M&A 10/28/2021 Signature of Reporting Person Date Siemens Industry, Inc., By: /s/ Ruth Gratzke, Name: Ruth Gratzke, Title: Chief Executive Officer, By: /s/ Marsha Smith, Name: Marsha Smith, Title: Chief Financial Officer 10/28/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The LLC Units of Fluence Energy, LLC ("OpCo Units") and an equal number of shares of Class B-1 Common Stock of Fluence Energy, Inc., together are exchangeable at the discretion of the holder for, at the Issuer's election, shares of Class A Common Stock on a one-for-one basis or the cash value thereof, subject to certain exceptions, conditions and adjustments, and have no expiration date. ( 2 )The securities are held of record by Siemens Industry, Inc. ("Siemens Industry"). Siemens AG is the indirect parent of Siemens Industry and may be deemed to beneficially own the securities held of record by Siemens Industry.

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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