Fluence Energy director buys 7,000 shares

A Fluence Energy director increased his direct Class A share holdings through an open-market purchase.

Rhea-AI Filing Summary

Fluence Energy, Inc. (FLNC) director Harald von Heynitz purchased additional shares of the company’s Class A Common Stock. On September 21, 2026, he bought 7,000 shares in an open-market or private transaction at $7.36 per share, bringing his direct holdings to 65,550 shares. No Rule 10b5-1 trading plan is reported for this transaction.

Insider Trade Summary

Net Buyer: 7,000 shares

Net Buy 1 txn

Insider von Heynitz Harald

Role Director

Bought 7,000 shs ($52K)

Type	Security	Shares	Price	Value
Purchase	Class A Common Stock	7,000	$7.36	$52K

Holdings After Transaction: Class A Common Stock — 65,550 shares (Direct)

Key Figures

Shares purchased: 7,000 shares Purchase price per share: $7.36 per share Shares owned after transaction: 65,550 shares +1 more

4 metrics

Shares purchased 7,000 shares Class A Common Stock bought on September 21, 2026

Purchase price per share $7.36 per share Price for the 7,000 Class A shares purchased

Shares owned after transaction 65,550 shares Direct holdings of Harald von Heynitz after the purchase

Net shares bought 7,000 shares Net buy transactions reported in this Form 4

Key Terms

Class A Common Stock, open-market or private transaction, Rule 10b5-1

3 terms

Class A Common Stock financial

"The director acquired Class A Common Stock of Fluence Energy, Inc."

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

open-market or private transaction financial

"Purchase in open market or private transaction"

Rule 10b5-1 regulatory

"No Rule 10b5-1 trading plan is reported for this transaction"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did FLNC director Harald von Heynitz report?

He reported a purchase of 7,000 shares of Fluence Energy Class A Common Stock on September 21, 2026 in an open-market or private transaction.

At what price were the FLNC shares purchased by the director?

The 7,000 Fluence Energy (FLNC) Class A Common Stock shares were purchased at a price of $7.36 per share.

How many FLNC shares does Harald von Heynitz own after this transaction?

After the reported purchase, Harald von Heynitz directly owns 65,550 shares of Fluence Energy Class A Common Stock.

Was the FLNC insider purchase made under a Rule 10b5-1 trading plan?

No. The filing indicates the Rule 10b5-1 checkbox is not checked, so this purchase was not reported as being made under a Rule 10b5-1 trading plan.

What type of security did the FLNC director acquire?

The director acquired Class A Common Stock of Fluence Energy, Inc., totaling 7,000 shares in this transaction.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/22/2026 - 04:03 PM Accepted by SEC EDGAR 09/22/2026 - 04:03 PM Learn about SEC filing dates

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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.

2107 WILSON BOULEVARD, SUITE 900

(Street)

ARLINGTON VIRGINIA 22201

(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)
09/21/2026

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	09/21/2026		P		7,000	A	$7.36	65,550	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

Explanation of Responses:

Remarks:

	/s/ Leah Patterson as Attorney-in-fact for Harald von Heynitz	09/22/2026
	** 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)