As of November 6, 2026, 4 holders' latest Schedule 13D or 13G filings report owning 5% or more of Energy Transition Special Opportunities. The largest reported stake is Climate Transition Special Opportunities SPAC I LP's, at 24.63%. 4 filings are on record since May 26, 2026 (Schedule 13D, May 26, 2026).
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Key facts
- · Reporting person: Magnetar Financial LLC · Sole voting: 0 · Shared voting: 1,250,000 · Sole dispositive: 0 · Shared dispositive: 1,250,000 · SCHEDULE 13G, 2026-08-13
- · Reporting person: Adage Capital Management, L.P. · Sole voting: 0 · Shared voting: 1,350,000 · Sole dispositive: 0 · Shared dispositive: 1,350,000 · SCHEDULE 13G, 2026-08-12
- · Reporting person: The Goldman Sachs Group, Inc. · Sole voting: 0 · Shared voting: 836,796 · Sole dispositive: 0 · Shared dispositive: 836,796 · SCHEDULE 13G, 2026-08-10
- · Holder: Climate Transition Special Opportunities SPAC I LP · Percent: 24.63% · SCHEDULE 13D
Energy Transition Special Opportunities has 4 Schedule 13D or 13G filings on record since 2026-05-26. 4 holders' latest filing reports 5% or more of class a ordinary shares, par value $0.0001. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Climate Transition Special Opportunities SPAC I LP | 24.63% | 4,925,000 | SCHEDULE 13D, 2026-05-26 | 2026-05-18 |
| Adage Capital Management, L.P. | 9% | 1,350,000 | SCHEDULE 13G, 2026-08-12 | 2026-06-30 |
| Magnetar Financial LLC | 8.33% | 1,250,000 | SCHEDULE 13G, 2026-08-13 | 2026-06-30 |
| The Goldman Sachs Group, Inc. | 5.6% | 836,796 | SCHEDULE 13G, 2026-08-10 | 2026-06-30 |
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More on Energy Transition Special Opportunities and the records around it.
Companies that share a holder
- MAGNETAR FINANCIAL LLC also filed stake reports on 97 other companies: Blue Acquisition Corp. (Sep 2026), CENTURION ACQUISITION CORP. (Sep 2026), Churchill Capital Corp IX (Sep 2026)
- Adage Capital Management, L.P. also filed stake reports on 136 other companies: ACP Holdings Acquisition Corp. (Aug 2026), AmperCap Acquisition Company (Aug 2026), Aura Biosciences, Inc. (Aug 2026)
- THE GOLDMAN SACHS GROUP, INC. also filed stake reports on 173 other companies: AEON ACQUISITION I CORP. (Nov 2026), ALPEX ACQUISITION CORPORATION (Nov 2026), ARCHIMEDES TECH SPAC PARTNERS II CO. (Nov 2026)
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What the Full Report on Energy Transition Special Opportunities covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Adage Capital Management, L.P. | 0 | 1,350,000 | 0 | 1,350,000 | SCHEDULE 13G, 2026-08-12 |
| Robert Atchinson | 0 | 1,350,000 | 0 | 1,350,000 | SCHEDULE 13G, 2026-08-12 |
| Phillip Gross | 0 | 1,350,000 | 0 | 1,350,000 | SCHEDULE 13G, 2026-08-12 |
| Magnetar Financial LLC | 0 | 1,250,000 | 0 | 1,250,000 | SCHEDULE 13G, 2026-08-13 |
| Magnetar Capital Partners LP | 0 | 1,250,000 | 0 | 1,250,000 | SCHEDULE 13G, 2026-08-13 |
| Supernova Management LLC | 0 | 1,250,000 | 0 | 1,250,000 | SCHEDULE 13G, 2026-08-13 |
| David J. Snyderman | 0 | 1,250,000 | 0 | 1,250,000 | SCHEDULE 13G, 2026-08-13 |
| The Goldman Sachs Group, Inc. | 0 | 836,796 | 0 | 836,796 | SCHEDULE 13G, 2026-08-10 |
| Goldman Sachs & Co. LLC | 0 | 836,796 | 0 | 836,796 | SCHEDULE 13G, 2026-08-10 |
The latest filing identifies Energy Transition Special Opportunities by CUSIP G23017109 and gives its principal executive office as 71 Orchard Pl, Unit 1, Greenwich, CT 06830 (SCHEDULE 13G, 2026-08-13).
What the percentages are based on
As of June 30, 2026, each of the Reporting Persons were deemed to be the beneficial owner constituting approximately 8.33% of the total number of shares outstanding (based upon the information provided by the Issuer in the Form 10-Q filed on August 7, 2026 there were approximately 15,000,000 Shares outstanding).Magnetar Financial LLC, SCHEDULE 13G, 2026-08-13
Purpose of Transaction (Item 4)
Climate Transition Special Opportunities SPAC I LP
On July 30, 2025, the Sponsor paid $25,000, or approximately $0.006 per share, to cover certain of the Issuer's offering costs in exchange for 4,541,667 Class B ordinary shares (the "Founder Shares"), pursuant to the Securities Subscription Agreement dated as of July 30, 2025 between the Sponsor and the Issuer (the "Founder Share Purchase Agreement"). On September 4, 2025, the Issuer effected a 1 for 1.26605495295 share split of the Founder Shares. In September 2025, the Sponsor transferred 25,000 Founder Shares to each of the independent directors at a purchase price of approximately $0.004 per share (for an aggregate of 75,000 Founder Shares). On May 18, 2026, the underwriters in the Issuer's initial public offering forfeited their over-allotment option to purchase up to an additional 2,250,000 units. As a result of the over-allotment option forfeiture by the underwriters, 750,000 Class B ordinary shares were forfeited by the Sponsor, resulting in the Sponsor holding an aggregate of 4,925,000 Founder Shares. On May 18, 2026, the Issuer consummated its initial public offering ("IPO") and in connection with the consummation, Sponsor purchased an aggregate of 3,500,000 Placement Warrants for an aggregate purchase price of $3,500,000. The Reporting Persons made the acquisitions reported in this Schedule 13D in support of the Issuer's business plan and for investment purposes. The Reporting Persons may acquire or dispose of additional securities or sell securities of the …The first part of Item 4 of the SCHEDULE 13D filed 2026-05-26; the filing has the rest
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2026-05-26 | Climate Transition Special Opportunities SPAC I LP | 24.63% | SCHEDULE 13D |
| 2026-08-10 | The Goldman Sachs Group, Inc. | 5.6% | SCHEDULE 13G |
| 2026-08-12 | Adage Capital Management, L.P. | 9% | SCHEDULE 13G |
| 2026-08-13 | Magnetar Financial LLC | 8.33% | SCHEDULE 13G |
Questions about who owns Energy Transition Special Opportunities
Who owns Energy Transition Special Opportunities?
On this page, 4 holders' latest ownership filings report 5% or more of Energy Transition Special Opportunities: Climate Transition Special Opportunities SPAC I LP (24.63%, Schedule 13D, filed 2026-05-26), Adage Capital Management, L.P. (9%, Schedule 13G, filed 2026-08-12), Magnetar Financial LLC (8.33%, Schedule 13G, filed 2026-08-13) and The Goldman Sachs Group, Inc. (5.6%, Schedule 13G, filed 2026-08-10).
Who are the largest shareholders of Energy Transition Special Opportunities?
By the share each holder's latest filing reports, the largest holders of Energy Transition Special Opportunities on this page are Climate Transition Special Opportunities SPAC I LP (24.63%), Adage Capital Management, L.P. (9%) and Magnetar Financial LLC (8.33%).
When did Climate Transition Special Opportunities SPAC I LP buy into Energy Transition Special Opportunities?
The filings give report dates, not purchase dates. The earliest filing from Climate Transition Special Opportunities SPAC I LP on this page is the Schedule 13D, filed 2026-05-26, reporting 24.63%.
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%); 4 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 Energy Transition Special Opportunities
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| May 19, 2026 | Leadership change filing (Form 8-K, Item 5.02) | — | Leadership changes | Source |
| May 15, 2026 | IPO filing, Form 424B4 | — | IPO filings | Source |
| May 14, 2026 | IPO filing, Form S-1/A | — | IPO filings | Source |
| April 24, 2026 | IPO filing, Form S-1/A | — | IPO filings | Source |
| April 7, 2026 | IPO filing, Form S-1/A | — | IPO filings | Source |
| March 10, 2026 | IPO filing, Form S-1/A | — | IPO filings | Source |
| February 12, 2026 | IPO filing, Form S-1/A | — | IPO filings | Source |
| February 4, 2026 | IPO filing, Form S-1/A | — | IPO filings | Source |
| September 23, 2025 | IPO filing, Form S-1 | — | IPO filings | 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.