As of November 7, 2026, 5 holders' latest Schedule 13D or 13G filings report owning 5% or more of T1 Energy Inc. The largest reported stake is Encompass Capital Advisors LLC's, at 19.99%. 20 filings are on record since July 17, 2025 (Schedule 13D/A, December 15, 2025).
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Key facts
- · Reporting person: Integrated Core Strategies (US) LLC · Sole voting: 0 · Shared voting: 17,614,372 · Sole dispositive: 0 · Shared dispositive: 17,614,372 · SCHEDULE 13G/A, 2026-10-07
- · Holder: Millennium Management LLC · Percent: 5.5% · SCHEDULE 13G
- · Reporting person: State Street Corporation · Sole voting: 0 · Shared voting: 15,271,996 · Sole dispositive: 0 · Shared dispositive: 15,587,131 · SCHEDULE 13G, 2026-08-07
- · Reporting person: Integrated Core Strategies (US) LLC · Sole voting: 0 · Shared voting: 11,145,141 · Sole dispositive: 0 · Shared dispositive: 11,145,141 · SCHEDULE 13G, 2026-08-05
- · Reporting person: BlackRock, Inc. · Sole voting: 25,383,801 · Shared voting: 0 · Sole dispositive: 25,680,077 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-07-30
T1 Energy Inc. has 20 Schedule 13D or 13G filings on record since 2025-07-17. 5 holders' latest filing reports 5% or more of common stock, par value $0.01 per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Encompass Capital Advisors LLC | 19.99% | 74,147,162 | SCHEDULE 13D/A, 2025-12-15 | 2025-12-11 |
| Trina Solar (Schweiz) AG | 11% | 30,652,664 | SCHEDULE 13D/A, 2026-05-26 | 2026-05-21 |
| BlackRock, Inc. | 9.2% | 25,680,077 | SCHEDULE 13G/A, 2026-07-30 | 2026-06-30 |
| Millennium Management LLC | 7.3% | 21,814,971 | SCHEDULE 13G/A, 2026-10-07 | 2026-09-30 |
| State Street Corporation | 5.6% | 15,587,131 | SCHEDULE 13G, 2026-08-07 | 2026-06-30 |
| Millennium Management LLC | 4.4% | 12,346,674 | SCHEDULE 13G, 2026-08-05 | 2026-07-29 |
| Alussa Energy Sponsor LLC | 4.2% | 11,151,357 | SCHEDULE 13D/A, 2026-02-26 | 2025-12-10 |
| 4.1% | 10,533,358 | SCHEDULE 13G/A, 2026-02-12 | 2025-12-31 |
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More on T1 Energy Inc. and the records around it.
T1 Energy Inc. elsewhere on the record
- Acquisition Jul 2026
- Leadership changes Apr 2026
- Who owns it
Companies that share a holder
- Encompass Capital Advisors LLC also filed stake reports on 18 other companies: Sable Offshore Corp. (Oct 2026), EagleRock Land, LLC (Aug 2026), HMH Holding Inc. (Aug 2026)
- Integrated Core Strategies (US) LLC also filed stake reports on 63 other companies: SkinHealth Systems Inc. (Nov 2026), Infinite Eagle Acquisition Corp. (Nov 2026), Longeveron Inc. (Nov 2026)
- Integrated Core Strategies (US) LLC also filed stake reports on 121 other companies: StepStone Group Inc. (Nov 2026), Catalyst Acquisition Corp. (Nov 2026), RxSight, Inc. (Nov 2026)
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Example from a real report (our sample on Target): “The Q2 2026 earnings report, published August 19, 2026, showed adjusted EPS of $2.46 against an expected $2.33” Source: CNBC
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| BlackRock, Inc. | 25,383,801 | 0 | 25,680,077 | 0 | SCHEDULE 13G/A, 2026-07-30 |
| Integrated Core Strategies (US) LLC | 0 | 17,614,372 | 0 | 17,614,372 | SCHEDULE 13G/A, 2026-10-07 |
| Millennium Management LLC | 0 | 21,814,971 | 0 | 21,814,971 | SCHEDULE 13G/A, 2026-10-07 |
| Millennium Group Management LLC | 0 | 21,814,971 | 0 | 21,814,971 | SCHEDULE 13G/A, 2026-10-07 |
| Israel A. Englander | 0 | 21,814,971 | 0 | 21,814,971 | SCHEDULE 13G/A, 2026-10-07 |
| State Street Corporation | 0 | 15,271,996 | 0 | 15,587,131 | SCHEDULE 13G, 2026-08-07 |
| Integrated Core Strategies (US) LLC | 0 | 11,145,141 | 0 | 11,145,141 | SCHEDULE 13G, 2026-08-05 |
| Millennium Management LLC | 0 | 12,346,674 | 0 | 12,346,674 | SCHEDULE 13G, 2026-08-05 |
| Millennium Group Management LLC | 0 | 12,346,674 | 0 | 12,346,674 | SCHEDULE 13G, 2026-08-05 |
| Israel A. Englander | 0 | 12,346,674 | 0 | 12,346,674 | SCHEDULE 13G, 2026-08-05 |
The latest filing identifies T1 Energy Inc. by CUSIP 35834F104 and gives its principal executive office as 1211 E 4th Street, Austin, TX 78702 (SCHEDULE 13G/A, 2026-10-07).
Purpose of Transaction (Item 4)
Trina Solar (Schweiz) AG
On May 21, 2026, and May 22, 2026, the Reporting Person sold a total of 22,500,000 shares of common stock of the Issuer in the ordinary course of business.Item 4 of the SCHEDULE 13D/A filed 2026-05-26
Alussa Energy Sponsor LLC
Item 4 is hereby amended and supplemented with the following: On September 5, 2025, as part of the partial conversion of its $80.0 million seven percent (7%) unsecured convertible note due in five (5) years (the "Convertible Note Instrument"), the Company issued 12,521,653 Shares underlying the Convertible Note Instrument to Trina Solar (Schweiz) AG, an entity organized under the laws of Switzerland ("Trina"). Following the approval of the Company's stockholders on December 3, 2025, the remaining balance of the Convertible Note Instrument converted into 17,918,460 Shares (the "Second Conversion Shares") and such shares were issued to Trina on December 10, 2025. After giving effect to the issuance of the Second Conversion Shares described herein, as of December 10, 2025, the Reporting Persons ceased to be the beneficial owner of more than five percent of the Shares.Item 4 of the SCHEDULE 13D/A filed 2026-02-26
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-07-17 | BlackRock, Inc. | 5% | SCHEDULE 13G |
| 2025-08-15 | Encompass Capital Advisors LLC | 8.8% | SCHEDULE 13D/A |
| 2025-09-09 | Trina Solar (Schweiz) AG | 16.6% | SCHEDULE 13D/A |
| 2025-10-17 | BlackRock, Inc. | 4.8% | SCHEDULE 13G/A |
| 2025-10-27 | Encompass Capital Advisors LLC | 19.99% | SCHEDULE 13D/A |
| 2025-11-04 | Encompass Capital Advisors LLC | 19.99% | SCHEDULE 13D/A |
| 2025-11-07 | Morgan Stanley | 5.8% | SCHEDULE 13G/A |
| 2025-12-15 | Encompass Capital Advisors LLC | 19.99% | SCHEDULE 13D/A |
| 2025-12-22 | Trina Solar (Schweiz) AG | 17.4% | SCHEDULE 13D/A |
| 2026-01-06 | Trina Solar (Schweiz) AG | 18.4% | SCHEDULE 13D/A |
| 2026-01-23 | Trina Solar (Schweiz) AG | 19.6% | SCHEDULE 13D/A |
| 2026-02-12 | Morgan Stanley | 4.1% | SCHEDULE 13G/A |
| 2026-02-26 | Alussa Energy Sponsor LLC | 4.2% | SCHEDULE 13D/A |
| 2026-04-27 | BlackRock, Inc. | 5.3% | SCHEDULE 13G |
| 2026-05-26 | Trina Solar (Schweiz) AG | 11% | SCHEDULE 13D/A |
| 2026-07-30 | BlackRock, Inc. | 9.2% | SCHEDULE 13G/A |
| 2026-08-05 | Millennium Management LLC | 4.4% | SCHEDULE 13G |
| 2026-08-07 | State Street Corporation | 5.6% | SCHEDULE 13G |
| 2026-08-19 | Millennium Management LLC | 5.5% | SCHEDULE 13G |
| 2026-10-07 | Millennium Management LLC | 7.3% | SCHEDULE 13G/A |
Questions about who owns T1 Energy Inc.
Who owns T1 Energy Inc.?
On this page, 5 holders' latest ownership filings report 5% or more of T1 Energy Inc.: Encompass Capital Advisors LLC (19.99%, Schedule 13D/A, filed 2025-12-15), Trina Solar (Schweiz) AG (11%, Schedule 13D/A, filed 2026-05-26), BlackRock, Inc. (9.2%, Schedule 13G/A, filed 2026-07-30), Millennium Management LLC (7.3%, Schedule 13G/A, filed 2026-10-07) and State Street Corporation (5.6%, Schedule 13G, filed 2026-08-07).
Who are the largest shareholders of T1 Energy Inc.?
By the share each holder's latest filing reports, the largest holders of T1 Energy Inc. on this page are Encompass Capital Advisors LLC (19.99%), Trina Solar (Schweiz) AG (11%) and BlackRock, Inc. (9.2%).
When did Encompass Capital Advisors LLC buy into T1 Energy Inc.?
The filings give report dates, not purchase dates. The earliest filing from Encompass Capital Advisors LLC on this page is the Schedule 13D/A, filed 2025-08-15, reporting 8.8%; its latest, Schedule 13D/A filed 2025-12-15, reports 19.99%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 20 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
Also on the record for T1 Energy Inc.
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| September 30, 2026 | Acquired Assets is US$133 | $133M | Acquisition | Source |
| April 27, 2026 | Leadership change filing (Form 8-K, Item 5.02) | — | Leadership changes | Source |
| March 31, 2026 | Leadership change: Tore Ivar Slettemoen departs, Director, and 1 more | — | Leadership changes | Source |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.