[Form 4] Fluence Energy, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Fluence Energy, Inc. director Elizabeth Anne Fessenden settled a grant of restricted stock units into common shares. On March 17, 2026, 32,348 RSUs vested in full, converting into an equal number of Class A Common Stock shares at no exercise price. Following the conversion, she directly holds 67,250 common shares. The RSUs had no expiration date and represented compensation rather than open-market purchases.

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

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

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Fessenden Elizabeth Anne

(Last) (First) (Middle)

C/O FLUENCE ENERGY, INC.

4601 FAIRFAX DRIVE, SUITE 600

(Street)

ARLINGTON VIRGINIA 22203

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Fluence Energy, Inc. [ FLNC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/17/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	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
Class A Common Stock	03/17/2026		M		32,348	A	(1)	67,250	D

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 (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	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 (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (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: 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
Restricted Stock Unit	(1)	03/17/2026		M			32,348	(2)	(2)	Class A Common Stock	32,348	$0	0	D

Explanation of Responses:

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

2. The RSUs vested in full on March 17, 2026. The RSUs had no expiration date.

Remarks:

	/s/ Leah Patterson as Attorney-in-fact for Elizabeth Anne Fessenden	03/19/2026
	** Signature of Reporting Person	Date
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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Fluence Energy (FLNC) disclose for Elizabeth Anne Fessenden?

Fluence Energy reported that director Elizabeth Anne Fessenden settled 32,348 restricted stock units into Class A Common Stock. This reflects the vesting of equity compensation, not an open-market purchase or sale of shares by the director.

How many shares did Elizabeth Anne Fessenden acquire in the latest Fluence Energy Form 4?

She acquired 32,348 shares of Class A Common Stock through the vesting and conversion of an equal number of restricted stock units. Each RSU represented a contingent right to receive one share of Fluence Energy Class A Common Stock.

What are Elizabeth Anne Fessenden’s Fluence Energy share holdings after this Form 4 transaction?

After the RSU conversion, Elizabeth Anne Fessenden directly holds 67,250 shares of Fluence Energy Class A Common Stock. This figure reflects her position immediately following the March 17, 2026 equity compensation vesting event.

Was the Fluence Energy (FLNC) Form 4 transaction an open-market buy or sell?

The transaction was not an open-market buy or sell. It was an exercise and conversion of 32,348 restricted stock units into common shares at a zero exercise price, representing equity compensation rather than a discretionary market trade.

When did the restricted stock units for Fluence Energy director Elizabeth Anne Fessenden vest?

The restricted stock units vested in full on March 17, 2026. Upon vesting, each RSU converted into one share of Fluence Energy Class A Common Stock, increasing her direct holdings without any cash exercise price.