Cam-Phung Michael Tam - 09 Feb 2026 SCHEDULE 13D Report for Cambridge Acquisition Corp. Class A Ordinary Shares, $0.0001 par value

Filing manager: Cam-Phung Michael Tam
Reporting owner: Cam-Phung Michael Tam
Security: Cambridge Acquisition Corp. Class A Ordinary Shares, $0.0001 par value
Shares outstanding: 27,962,203 shares
Disclosed shares: 8,162,167 shares
Disclosed ownership percentage: 29%
Form type: SCHEDULE 13D
Filing time: 13 Feb 2026, 16:15:44 UTC
Event date: 09 Feb 2026
SEC filing: View on sec.gov

Key filing fact

Cam-Phung Michael Tam disclosed 29% ownership in Cambridge Acquisition Corp. Class A Ordinary Shares, $0.0001 par value on 09 Feb 2026.

Key facts

Cam-Phung Michael Tam filed SCHEDULE 13D for Cambridge Acquisition Corp. Class A Ordinary Shares, $0.0001 par value.
Disclosed ownership: 29%.
Date of event: 09 Feb 2026.

This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
You can verify ownership claims directly against the original SEC filing.

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

Reporting persons

Names, ownership, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
Cam-Phung Michael Tam	29%	8,162,167	0	8,162,167	/s/ Michael Cam- Phung	Michael Cam- Phung	0002085776
Cambridge Sponsor LLC	26%	8,162,167	8,162,167	0	/s/ Michael Cam- Phung	Michael Cam- Phung/Authorized Person

CIK / CUSIP context first

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