Fluence Energy (FLNC) director sells shares to cover taxes after RSU vest

Rhea-AI Filing Summary

Fluence Energy director Harald von Heynitz reported routine equity compensation activity and a related share sale. On March 17, 2026, restricted stock units representing 32,348 shares of Class A Common Stock vested in full and were converted into shares at no cost to him.

On March 18, 2026, he sold 10,000 shares of Class A Common Stock at a weighted average price of $16.5019 per share, in multiple trades between $16.49 and $16.56, to cover tax obligations arising from the RSU vesting. After these transactions, he directly held 63,550 shares of Class A Common Stock.

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^*

von Heynitz Harald

(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)	73,550	D
Class A Common Stock	03/18/2026		S		10,000(2)	D	$16.5019(3)	63,550	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	(4)	(4)	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 sales reported on this Form 4 represent the number of shares sold by the Reporting Person to cover tax obligations in connection with the vesting of RSUs.

3. This transaction was executed in multiple trades at prices ranging from $16.49 to $16.56, inclusive. The price reported above reflects the weighted average sales price. The Reporting Person hereby undertakes to provide to the Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, upon request, full information regarding the number of shares and prices at which the transaction was effected.

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

Remarks:

	/s/ Leah Patterson as Attorney-in-fact for Harald von Heynitz	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 did Fluence Energy (FLNC) director Harald von Heynitz report in this Form 4?

He reported RSU vesting into 32,348 shares of Class A Common Stock and the sale of 10,000 shares. The sale was made specifically to cover tax obligations triggered by the RSU vesting.

How many Fluence Energy (FLNC) shares did Harald von Heynitz sell and at what price?

He sold 10,000 shares of Class A Common Stock at a weighted average price of $16.5019. The trade was executed in multiple transactions with prices ranging from $16.49 to $16.56 per share.

Why did Harald von Heynitz sell Fluence Energy (FLNC) shares after his RSUs vested?

The filing states the 10,000 shares were sold to cover tax obligations related to the vesting of restricted stock units. This indicates a tax-driven transaction rather than a discretionary open-market sale for portfolio reasons.

How many Fluence Energy (FLNC) shares did Harald von Heynitz acquire through RSU vesting?

He acquired 32,348 shares of Class A Common Stock when his restricted stock units vested in full on March 17, 2026. Each RSU represented a contingent right to receive one share upon vesting, with no exercise price.

What are Harald von Heynitz’s Fluence Energy (FLNC) holdings after these transactions?

Following the RSU conversion and the 10,000-share sale, he directly held 63,550 shares of Fluence Energy Class A Common Stock. The RSU award referenced in the filing was fully vested and no longer outstanding after March 17, 2026.

Were any restricted stock units in Fluence Energy (FLNC) left outstanding after this Form 4?

No RSUs from this award remained outstanding. The filing notes that the RSUs vested in full on March 17, 2026, converted into 32,348 shares, and that these RSUs had no expiration date once fully vested.