Fluence Energy, Inc.

(a) Disclosure in lieu of reporting on a Current Report on Form 8-K

Item 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

Change in Title and Responsibilities for Officer

On August 3, 2026, the Company’s Board of Directors (the “Board”) approved a change in title and responsibilities for Mr. Peter Williams, from Senior Vice President and Chief Product and Supply Chain Officer, to Senior Vice President and Chief Product Officer, effective as of August 3, 2026 (the "Effective Date"). Simultaneously, the Board promoted Mr. Roman Loosen, who was formerly the Company's Senior Vice President and Chief Enterprise Operations Officer, to Senior Vice President and Supply Chain Officer, effective as of the Effective Date.

Director Resignation

On August 4, 2026, Ruth Gratzke notified the Board of her resignation from the Board and the Compensation and Human Resources Committee of the Board, in each case effective as of the close of business on August 16, 2026. Ms. Gratzke’s resignation did not result from any disagreement with the Company on any matter relating to the Company’s operations, policies, or practices.

(b) None.

(c)Director and Officer Rule 10b5-1 Trading Arrangements

During the three months ended June 30, 2026, no directors or “officers” (as defined in Rule 16a-1(f) under the Exchange Act) of the Company adopted, modified, orterminated “Rule 10b5-1 trading arrangements” and/or “non-Rule 10b5-1 trading arrangements” (each as defined in Item 408 of Regulation S-K).