Karbon Capital Partners Corp. has 9 Schedule 13D or 13G filings on record since 2025-12-16. 4 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 |
|---|---|---|---|---|
| Karbon Capital Partners Core Holdings, LLC | 21.6% | 890,000 | SCHEDULE 13D, 2026-07-24 | 2026-06-30 |
| Empyrean Capital Partners, LP | 9.18% | 3,248,553 | SCHEDULE 13G/A, 2026-05-15 | 2026-03-31 |
| Adage Capital Management, L.P. | 7.63% | 2,700,000 | SCHEDULE 13G, 2026-02-12 | 2025-12-31 |
| Millennium Management LLC | 5.1% | 1,818,585 | SCHEDULE 13G/A, 2026-05-08 | 2026-03-31 |
| Fort Baker Capital Management LP | 4.2% | 1,499,756 | SCHEDULE 13G/A, 2026-08-14 | 2026-06-30 |
Purpose of Transaction (Item 4)
Karbon Capital Partners Core Holdings, LLC
On September 18, 2025, Issuer entered into a securities subscription agreement with Karbon Capital Partners CH resulting in the issuance of 8,625,000 Class B Shares. On December 12, 2025, simultaneously with the consummation of the IPO, Karbon Capital Partners CH purchased 890,000 units ("Placement Units") of the Issuer at $10.00 per Placement Unit, pursuant to a Private Placement Unit Purchase Agreement December 10, 2025 (the "Purchase Agreement"), as more fully described in Item 6 of this Schedule 13D, which information is incorporated herein by reference. Each Placement Unit consists of one Class A Share and one-fourth (1/4) of a redeemable warrant, each whole warrant exercisable to purchase one Class A Share, at an exercise price of $11.50 per share. The ordinary shares and units owned by the Reporting Persons have been acquired for investment purposes. The Reporting Persons may make further acquisitions of the Issuer's securities from time to time, however, all of such shares are subject to lock-up restrictions as further described in Item 6 below. Except for the foregoing, the Reporting Persons have no plans or proposals which relate to, or could result in, any of the matters referred to in paragraphs (a) and (c) through (j) of Item 4 of this Schedule 13D. With respect to paragraph (b) of Item 4, the Issuer is a blank check company formed for the purpose of effecting a merger, share exchange, asset acquisition, stock purchase, recapitalization, reorganization or …The first part of Item 4 of the SCHEDULE 13D filed 2026-07-24; the filing has the rest
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-12-16 | Millennium Management LLC | 6.4% | SCHEDULE 13G |
| 2026-02-12 | Adage Capital Management, L.P. | 7.63% | SCHEDULE 13G |
| 2026-02-17 | Karbon Capital Partners Core Holdings, LLC | 21.6% | SCHEDULE 13G |
| 2026-02-17 | Empyrean Capital Partners, LP | 7.4% | SCHEDULE 13G |
| 2026-05-08 | Millennium Management LLC | 5.1% | SCHEDULE 13G/A |
| 2026-05-15 | Empyrean Capital Partners, LP | 9.18% | SCHEDULE 13G/A |
| 2026-05-15 | Fort Baker Capital Management LP | 5.9% | SCHEDULE 13G |
| 2026-07-24 | Karbon Capital Partners Core Holdings, LLC | 21.6% | SCHEDULE 13D |
| 2026-08-14 | Fort Baker Capital Management LP | 4.2% | SCHEDULE 13G/A |
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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.