As of November 6, 2026, 2 holders' latest Schedule 13D or 13G filings report owning 5% or more of Leapfrog Acquisition Corporation. The largest reported stake is LeapFrog Partners LLC's, at 26.1%. 2 filings are on record since December 15, 2025 (Schedule 13D, December 15, 2025).
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Leapfrog Acquisition Corporation has 2 Schedule 13D or 13G filings on record since 2025-12-15. 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 |
|---|---|---|---|---|
| LeapFrog Partners LLC | 26.1% | 5,120,417 | SCHEDULE 13D, 2025-12-15 | 2025-12-08 |
| Adage Capital Management, L.P. | 7.58% | 1,125,000 | SCHEDULE 13G, 2026-02-12 | 2025-12-31 |
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More on Leapfrog Acquisition Corporation 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)
LeapFrog Partners LLC
On August 6, 2025, the Reporting Person paid $25,000 to purchase 4,791,667 of the Issuer's Class B Ordinary Shares, par value $0.0001 per share (the "Founder Shares"). The Founder Shares are automatically convertible into Class A Ordinary Shares at the time of the Issuer's initial business combination, or at any time prior to the Issuer's initial business combination, at the option of the holder, on a one-for-one basis, subject to adjustment as more fully described under the heading "Description of Securities--Ordinary Shares" in the Issuer's registration statement on Form S-1 (File No. 333-290036). Accordingly, the Founder Shares are included in the computation of the number of Class A Ordinary Shares beneficially owned by the Reporting Person and are included in the references to Ordinary Shares herein. As a result of the full exercise of the over-allotment option by the underwriters, none of the Founder Shares were forfeited by the Reporting Person, resulting in the Reporting Person holding 4,791,667 Founder Shares. On December 8, 2025, simultaneously with the consummation of the Issuer's initial public offering (the "IPO"), the Reporting Person purchased 328,750 units ("Placement Units") of the Issuer at $10.00 per Placement Unit, pursuant to a Private Placement Units Purchase Agreement, dated as of December 4, 2025, by and between the Issuer and the Reporting Person (the "Placement Units Purchase Agreement"), as more fully described in Item 6 of this Schedule 13D, …The first part of Item 4 of the SCHEDULE 13D filed 2025-12-15; the filing has the rest
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-12-15 | LeapFrog Partners LLC | 26.1% | SCHEDULE 13D |
| 2026-02-12 | Adage Capital Management, L.P. | 7.58% | SCHEDULE 13G |
Questions about who owns Leapfrog Acquisition Corporation
Who owns Leapfrog Acquisition Corporation?
On this page, 2 holders' latest ownership filings report 5% or more of Leapfrog Acquisition Corporation: LeapFrog Partners LLC (26.1%, Schedule 13D, filed 2025-12-15) and Adage Capital Management, L.P. (7.58%, Schedule 13G, filed 2026-02-12).
Who are the largest shareholders of Leapfrog Acquisition Corporation?
By the share each holder's latest filing reports, the largest holders of Leapfrog Acquisition Corporation on this page are LeapFrog Partners LLC (26.1%) and Adage Capital Management, L.P. (7.58%).
When did LeapFrog Partners LLC buy into Leapfrog Acquisition Corporation?
The filings give report dates, not purchase dates. The earliest filing from LeapFrog Partners LLC on this page is the Schedule 13D, filed 2025-12-15, reporting 26.1%.
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 Leapfrog Acquisition Corporation
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| December 5, 2025 | IPO filing, Form 424B4 | — | IPO filings | Source |
| November 10, 2025 | IPO filing, Form S-1/A | — | IPO filings | Source |
| October 24, 2025 | IPO filing, Form S-1/A | — | IPO filings | Source |
| September 4, 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.