Fluence Energy director exercises 32,348 RSUs

Fluence Energy director Cynthia A. Arnold exercised 32,348 restricted stock units into Class A common shares.

Rhea-AI Filing Summary

Fluence Energy director Cynthia A. Arnold exercised 32,348 restricted stock units into Class A common shares. On March 17, 2026, 32,348 RSUs vested in full, with each unit converting into one share of Class A Common Stock at a stated price of $0.00 per share.

Following the conversion, Arnold directly holds 118,550 shares of Class A Common Stock. This looks like a routine equity compensation event with no reported open-market purchases or sales in this filing.

Insider Trade Summary

32,348 shares exercised/converted

Exercise 2 txns

Insider Arnold Cynthia A

Role Director

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Unit	32,348	$0.00	$0.00
Exercise	Class A Common Stock	32,348	$0.00	$0.00

Holdings After Transaction: Restricted Stock Unit — 0 contracts (Direct); Class A Common Stock — 118,550 shares (Direct)

Footnotes (2)

1. F1. Each restricted stock unit ("RSU") represents a contingent right to receive one share of Class A Common Stock of the Issuer.
2. F2. The RSUs vested in full on March 17, 2026. The RSUs had no expiration date.

FAQ

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

What insider transaction did Fluence Energy (FLNC) report for Cynthia A. Arnold?

Fluence Energy reported that director Cynthia A. Arnold exercised 32,348 restricted stock units into Class A Common Stock. The RSUs vested in full on March 17, 2026, converting one-for-one into shares as part of her equity compensation.

How many Fluence Energy shares does Cynthia A. Arnold hold after this Form 4?

After the RSU conversion, Cynthia A. Arnold directly holds 118,550 shares of Fluence Energy Class A Common Stock. This reflects her updated ownership position following the vesting and exercise of 32,348 restricted stock units on March 17, 2026.

Did Cynthia A. Arnold sell any Fluence Energy (FLNC) shares in this Form 4 filing?

No sales were reported in this Form 4. The transactions show only the vesting and conversion of 32,348 restricted stock units into Class A Common Stock, with no open-market purchase, sale, gift, or tax-withholding disposition disclosed.

What are the terms of the Fluence Energy RSUs reported in this Form 4?

Each reported restricted stock unit represents a contingent right to receive one share of Fluence Energy Class A Common Stock. The RSUs vested in full on March 17, 2026, had no expiration date, and converted into 32,348 shares at a stated price of $0.00.

Is the Cynthia A. Arnold Form 4 transaction at Fluence Energy a derivative exercise?

Yes. The filing classifies the RSU event as an exercise or conversion of a derivative security. 32,348 restricted stock units converted into the same number of Class A Common Stock shares, updating Arnold’s direct holdings to 118,550 shares after the transaction.

Does the Fluence Energy (FLNC) Form 4 mention any remaining derivative awards for Cynthia A. Arnold?

The filing’s derivative section shows the reported restricted stock units were fully vested and converted, and no additional derivative positions are listed in this Form 4. It reflects completion of this specific RSU award’s vesting and settlement into common shares.

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

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Accepted by SEC EDGAR 03/19/2026 - 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^*

Arnold Cynthia A

(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)	118,550	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	(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 Cynthia A. Arnold	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)