TRINA SOLAR (SCHWEIZ) AG - 03 Dec 2025 Form 4 Insider Report for T1 Energy Inc. (TE)

Reporting relationship: 10%+ Owner
Issuer ticker: TE
Reported as of: 03 Dec 2025
Net transaction value: $0
SEC form: 4
Accepted by SEC: 30 Dec 2025, 18:25:10 UTC
Prior SEC filing: 30 Dec 2025
Next SEC filing: 06 Jan 2026
Source filing: View source filing
Reporting owner signature: Trina Solar (Schweiz) AG By: Vincenzo Costanzelli, Chairman of the Board of Directors

Key filing fact

TRINA SOLAR (SCHWEIZ) AG filed Form 4 for T1 Energy Inc. (TE) on 30 Dec 2025.

Key facts

This page summarizes TRINA SOLAR (SCHWEIZ) AG's Form 4 filing for T1 Energy Inc. (TE).
3 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 30 Dec 2025, 18:25.

Change

Previous filing in this sequence was filed on 30 Dec 2025.
Current net transaction value: $0.

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 (1)

CIK 0002047012 Primary reporting owner

TRINA SOLAR (SCHWEIZ) AG

Relationship: 10%+ Owner
Address: BIRKENWEG 4, WALLISELLEN, SWITZERLAND
Signature: Trina Solar (Schweiz) AG By: Vincenzo Costanzelli, Chairman of the Board of Directors
Signature date: 30 Dec 2025

Reported non-derivative transactions

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

TE transaction

Common Shares

Conversion of derivative security

Transaction value
Shares: +17,918,460
Change %: +64%
Price
Shares after: 45,877,960
Date: 10 Dec 2025
Ownership: Direct
Footnotes: F1

Reported derivative securities

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

TE transaction Derivative

7% Unsecured Convertible Note Due in 2030

Other

Transaction value
Shares: +17,918,460
Change %: +144%
Price
Shares after: 30,400,000
Date: 03 Dec 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 30,400,000
Exercise price
Footnotes: F1

TE transaction Derivative

7% Unsecured Convertible Note Due in 2030

Conversion of derivative security

Transaction value
Shares: -17,918,460
Change %: -100%
Price
Shares after: 0
Date: 10 Dec 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 17,918,460
Exercise price
Footnotes: F1

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

As reported in the Form 8-K filed by the Issuer on 12/27/24, on 12/23/24, in connection with an acquisition transaction, the Issuer issued to the Reporting Person a 7% convertible note (the ?Note?). Subject to approval by the Committee on Foreign Investment in the United States ("CFIUS"), the Note was convertible by the Reporting Person into (i) 12,521,653 shares of common stock of the Issuer (the "First Conversion") and (ii) an additional 17,918,460 shares of common stock of the Issuer (the "Second Conversion"). The Second Conversion was subject to approval by the Issuer's stockholders. On 5/27/25, the Issuer received a CFIUS letter determining that the transaction was not a covered transaction under Section 721 of the Defense Production Act of 1950, as amended, and therefore was not subject to review by CFIUS. The First Conversion occurred on 9/5/25. The Issuer's stockholders approved the Second Conversion on 12/3/25, and the Second Conversion occurred on 12/10/25.