Cambridge Acquisition Corp. has 6 Schedule 13D or 13G filings on record since 2026-02-12. 4 holders' latest filing reports 5% or more of class a ordinary shares, $0.0001 par value. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Cam-Phung Michael Tam | 29.19% | 8,162,167 | SCHEDULE 13D, 2026-02-13 | 2026-02-09 |
| Adage Capital Management, L.P. | 7.66% | 1,800,000 | SCHEDULE 13G, 2026-05-13 | 2026-03-31 |
| Magnetar Financial LLC | 7.23% | 1,700,000 | SCHEDULE 13G, 2026-05-13 | 2026-03-31 |
| Healthcare of Ontario Pension Plan Trust Fund | 6.3% | 1,100,000 | SCHEDULE 13G, 2026-08-13 | 2026-06-30 |
| Tenor Capital Management Company, L.P. | 4.3% | 1,000,000 | SCHEDULE 13G/A, 2026-05-15 | 2026-03-31 |
Purpose of Transaction (Item 4)
Cam-Phung Michael Tam
In connection with the organization of the Issuer, on October 30, 2025, 7,666,667 Class B Ordinary Shares (the "Founder Shares") were purchased by the Sponsor for the amount of $25,000, pursuant to a Securities Subscription Agreement, dated as of October 30, 2025, by and between the Sponsor and the Issuer (the "Subscription Agreement"), as more fully described in Item 6 of this Schedule 13D which information is incorporated herein by reference. On February 9, 2026, simultaneously with the consummation of the Issuer's Initial Public Offering (the "IPO"), the Sponsor purchased 495,500 units ("Placement Units") of the Issuer at $10.00 per Placement Unit, pursuant to a Private Placement Units Purchase Agreement, dated as of February 5, 2026, by and between the Issuer and the Sponsor (the "Placement Units 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 Ordinary Share and one-third of a warrant, with each whole warrant exercisable into one Class A ordinary share at an exercise price of $11.50, subject to adjustment, commencing 30 days following the consummation of the Issuer's initial business combination (as described more fully in the Issuer's Final Prospectus dated February 5, 2026). The Ordinary Shares owned by the Reporting Persons have been acquired for investment purposes. The Reporting Persons may make further acquisitions of the Ordinary Shares …The first part of Item 4 of the SCHEDULE 13D filed 2026-02-13; the filing has the rest
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2026-02-12 | Tenor Capital Management Company, L.P. | 5.9% | SCHEDULE 13G |
| 2026-02-13 | Cam-Phung Michael Tam | 29.19% | SCHEDULE 13D |
| 2026-05-13 | Adage Capital Management, L.P. | 7.66% | SCHEDULE 13G |
| 2026-05-13 | Magnetar Financial LLC | 7.23% | SCHEDULE 13G |
| 2026-05-15 | Tenor Capital Management Company, L.P. | 4.3% | SCHEDULE 13G/A |
| 2026-08-13 | Healthcare of Ontario Pension Plan Trust Fund | 6.3% | SCHEDULE 13G |
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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.