X0508 4 2025-12-18 0 0001868941 Fluence Energy, Inc. FLNC 0001751108 Mathis Vincent C/O FLUENCE ENERGY, INC. 4601 FAIRFAX DRIVE, SUITE 600 ARLINGTON VA 22203 0 1 0 0 See Remarks 0 Class A Common Stock 2025-12-18 4 M 0 14935 A 39715 D Class A Common Stock 2025-12-18 4 M 0 124456 A 164171 D Class A Common Stock 2025-12-18 4 F 0 62866 19.31 D 101305 D Restricted Stock Unit 2025-12-18 4 M 0 14935 0 D Class A Common Stock 14935 29869 D Restricted Stock Unit 2025-12-18 4 M 0 124456 0 D Class A Common Stock 124456 124456 D Each restricted stock unit ("RSU") represents a contingent right to receive one share of Class A Common Stock of the Issuer. Represents the number of shares of Class A Common Stock that have been withheld to satisfy tax withholding obligations in connection with the vesting of the RSUs. The RSUs vest in three equal annual installments with the first installment having vested on December 18, 2025, the second installment vesting on December 18, 2026 and the final installment vesting on December 18, 2027, subject to Reporting Person's continued service with the Issuer through the applicable vesting date. The RSUs vest in two equal annual installments with the first installment having vested on December 18, 2025 and the second installment vesting on December 18, 2026, subject to Reporting Person's continued service with the Issuer through the applicable vesting date. SVP & Chief Legal and Compliance Officer and Secretary. /s/ Vincent W. Mathis 2025-12-22