As of November 6, 2026, 2 holders' latest Schedule 13D or 13G filings report owning 5% or more of Tailwind 2.0 Acquisition Corp. The largest reported stake is Tailwind 2.0 Sponsor LLC's, at 25.49%. 2 filings are on record since November 18, 2025 (Schedule 13D, November 18, 2025).
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Tailwind 2.0 Acquisition Corp. has 2 Schedule 13D or 13G filings on record since 2025-11-18. 2 holders' latest filing reports 5% or more of class a ordinary shares, par value $0.0001 per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Tailwind 2.0 Sponsor LLC | 25.49% | 6,002,500 | SCHEDULE 13D, 2025-11-18 | 2025-11-10 |
| Adage Capital Management, L.P. | 7.59% | 1,350,000 | SCHEDULE 13G, 2026-02-12 | 2025-12-31 |
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More on Tailwind 2.0 Acquisition Corp. and the records around it.
Companies that share a holder
- 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)
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Purpose of Transaction (Item 4)
Tailwind 2.0 Sponsor LLC
On June 23, 2025, the Sponsor paid $25,000, or approximately $0.004 per share, to cover certain of the Issuer's offering costs in exchange for 5,750,000 Class B ordinary shares (the "Founder Shares"), pursuant to the Securities Subscription Agreement dated as of June 23, 2025 between the Sponsor and the Issuer (the "Founder Share Purchase Agreement"). On November 10, 2025, the Issuer consummated its initial public offering ("IPO") and in connection with the consummation, Sponsor purchased an aggregate of 372,500 private placement units for an aggregate purchase price of $3,725,000. Each unit purchased was comprised of one Class A ordinary share of the Issuer and one right to receive one-tenth of one Class A ordinary share of the Issuer upon consummation of an initial business combination (as described more fully in the Issuer's final prospectus dated November 6, 2025). 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 Issuer from time to time in the market or in private transactions, including as a result of ownership of the rights referred to above. However, reporting persons do not have any other agreements to acquire additional ordinary shares at this time. As Chairman of the Issuer, Mr. Philip Krim is involved in making material business decisions regarding the Issuer's policies and …The first part of Item 4 of the SCHEDULE 13D filed 2025-11-18; the filing has the rest
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-11-18 | Tailwind 2.0 Sponsor LLC | 25.49% | SCHEDULE 13D |
| 2026-02-12 | Adage Capital Management, L.P. | 7.59% | SCHEDULE 13G |
Questions about who owns Tailwind 2.0 Acquisition Corp.
Who owns Tailwind 2.0 Acquisition Corp.?
On this page, 2 holders' latest ownership filings report 5% or more of Tailwind 2.0 Acquisition Corp.: Tailwind 2.0 Sponsor LLC (25.49%, Schedule 13D, filed 2025-11-18) and Adage Capital Management, L.P. (7.59%, Schedule 13G, filed 2026-02-12).
Who are the largest shareholders of Tailwind 2.0 Acquisition Corp.?
By the share each holder's latest filing reports, the largest holders of Tailwind 2.0 Acquisition Corp. on this page are Tailwind 2.0 Sponsor LLC (25.49%) and Adage Capital Management, L.P. (7.59%).
When did Tailwind 2.0 Sponsor LLC buy into Tailwind 2.0 Acquisition Corp.?
The filings give report dates, not purchase dates. The earliest filing from Tailwind 2.0 Sponsor LLC on this page is the Schedule 13D, filed 2025-11-18, reporting 25.49%.
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%); 2 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 Tailwind 2.0 Acquisition Corp.
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| November 7, 2025 | IPO filing, Form 424B4 | $10 a share | IPO filings | Source |
| October 17, 2025 | IPO filing, Form S-1/A | — | IPO filings | Source |
| August 12, 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.