AES CORP - 15 May 2026 Form 4 Insider Report for Fluence Energy, Inc. (FLNC)

Reporting relationship: 10%+ Owner
Issuer ticker: FLNC
Reported as of: 15 May 2026
Net transaction value: -$211,394,694
SEC form: 4
Accepted by SEC: 19 May 2026, 16:54:46 UTC
Prior SEC filing: 12 Dec 2023
Source filing: View source filing
Reporting owner signature: /s/The AES Corporation, By: Jennifer Gillcrist, Assistant Secretary

Key filing fact

AES CORP filed Form 4 for Fluence Energy, Inc. (FLNC) on 19 May 2026.

Key facts

This page summarizes AES CORP's Form 4 filing for Fluence Energy, Inc. (FLNC).
3 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 19 May 2026, 16:54.

Change

Previous filing in this sequence was filed on 12 Dec 2023.
Current net transaction value: -$211,394,694.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (2)

CIK 0000874761 Primary reporting owner

AES CORP

Relationship: 10%+ Owner
Address: 4300 WILSON BOULEVARD, SUITE 1100, ARLINGTON
Signature: /s/The AES Corporation, By: Jennifer Gillcrist, Assistant Secretary
Signature date: 18 May 2026

CIK 0001891368

AES Grid Stability, LLC

Relationship: 10%+ Owner
Address: 4300 WILSON BOULEVARD, SUITE 1100, ARLINGTON
Signature: /s/AES Grid Stability LLC, By: Pablo Fekete, Secretary
Signature date: 18 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

FLNC transaction

Class A Common Stock

Conversion of derivative security

Transaction value
Shares: +10,066,414
Change %
Price
Shares after: 10,066,414
Date: 15 May 2026
Ownership: See footnote
Footnotes: F1, F2

FLNC transaction

Class A Common Stock

Conversion of derivative security

Transaction value
Shares: +10,066,414
Change %
Price
Shares after: 10,066,414
Date: 15 May 2026
Ownership: See footnote
Footnotes: F1, F2

FLNC transaction

Class A Common Stock

Sale

Transaction value: $211,394,694
Shares: -10,066,414
Change %: -100%
Price: $21.00
Shares after: 0
Date: 15 May 2026
Ownership: See footnote
Footnotes: F2

FLNC transaction

Class A Common Stock

Sale

Transaction value: $211,394,694
Shares: -10,066,414
Change %: -100%
Price: $21.00
Shares after: 0
Date: 15 May 2026
Ownership: See footnote
Footnotes: F2

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

FLNC transaction Derivative

LLC Units of Fluence Energy, LLC

Conversion of derivative security

Transaction value
Shares: -10,066,414
Change %: -20%
Price: $0.000000^*
Shares after: 41,432,781
Date: 15 May 2026
Ownership: See Footnote
Underlying class: Class A Common Stock
Underlying amount: 10,066,414
Exercise price
Footnotes: F2, F3

FLNC transaction Derivative

LLC Units of Fluence Energy, LLC

Conversion of derivative security

Transaction value
Shares: -10,066,414
Change %: -20%
Price: $0.000000^*
Shares after: 41,432,781
Date: 15 May 2026
Ownership: See Footnote
Underlying class: Class A Common Stock
Underlying amount: 10,066,414
Exercise price
Footnotes: F2, F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

On May 15, 2026, AES Grid Stability, LLC ("AES Grid Stability"), a wholly owned, indirect subsidiary of The AES Corporation, exercised its redemption right with respect to 10,066,414 LLC Units of Fluence Energy, LLC ("OpCo Units") together with the corresponding cancellation of 10,066,414 shares of Class B-1 Common Stock of Fluence Energy, Inc. AES Grid Stability exercised such redemption right as a result of AES Grid Stability's and The AES Corporation's determination to sell 10,066,414 shares Class A Common Stock in an underwritten offering.

Footnote F2

The OpCo Units and an equal number of shares of Class B-1 Common Stock, together are exchangeable at the discretion of the holder for, at the Issuer's election, shares of Class A Common Stock on a one-for-one basis or the cash value thereof, subject to certain exceptions, conditions and adjustments, and have no expiration date.

Footnote F3

The OpCo Units are held by AES Grid Stability, LLC, which is a wholly owned subsidiary of The AES Corporation.