Julian Nebreda - 18 Dec 2025 Form 4 Insider Report for Fluence Energy, Inc. (FLNC)

Role: President and CEO, Director
Signature: /s/ Vincent W. Mathis as Attorney-in-Fact for Julian Nebreda
Issuer symbol: FLNC
Transactions as of: 18 Dec 2025
Transactions value $: -$369,053
Form type: 4
Filing time: 22 Dec 2025, 16:16:43 UTC
Previous filing: 03 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Nebreda Julian	President and CEO, Director	C/O FLUENCE ENERGY, INC., 4601 FAIRFAX DRIVE, SUITE 600, ARLINGTON	/s/ Vincent W. Mathis as Attorney-in-Fact for Julian Nebreda	22 Dec 2025	0001754406

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	FLNC	Class A Common Stock	Options Exercise		+45.6K	+26.49%		218K	18 Dec 2025	Direct	F1
transaction	FLNC	Class A Common Stock	Tax liability	-$369K	-19.1K	-8.77%	$19.31	199K	18 Dec 2025	Direct	F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	FLNC	Restricted Stock Unit	Options Exercise	$0	-45.6K	-33.33%	$0.00	91.3K	18 Dec 2025	Class A Common Stock	45.6K		Direct	F1, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each restricted stock unit ("RSU") represents a contingent right to receive one share of Class A Common Stock of the Issuer.
F2	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.
F3	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.