TCGX Acquisition Corp.: 5%+ holders

As of November 6, 2026, 2 holders' latest Schedule 13D or 13G filings report owning 5% or more of TCGX Acquisition Corp. The largest reported stake is Bvf Partners L P's, at 5.5%. 2 filings are on record since August 12, 2026 (Schedule 13G, August 12, 2026).

BIOTECHNOLOGY VALUE FUND L P also filed stake reports on 55 other companies ↓

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TCGX Acquisition Corp. has 2 Schedule 13D or 13G filings on record since 2026-08-12. 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

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More on TCGX Acquisition Corp. and the records around it.

Companies that share a holder

• BIOTECHNOLOGY VALUE FUND L P also filed stake reports on 55 other companies: Frazier Life Sciences Acquisition Corp. II (Oct 2026), Olema Pharmaceuticals, Inc. (Oct 2026), Foghorn Therapeutics Inc. (Oct 2026)
• RA Capital Management, L.P. also filed stake reports on 100 other companies: Climb Bio, Inc. (Nov 2026), Bambusa Therapeutics, Inc. (Nov 2026), SOLID BIOSCIENCES INC. (Nov 2026)

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What the Full Report on TCGX Acquisition Corp. covers

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2. Which Company This Is

3. What They Do, And How The Money Works

4. Who Runs It, And How To Reach Them

5. The Money: Funding, Valuation, Runway

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7. Warning Bells

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   6 cited sources found

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Voting and dispositive power, as filed

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The latest filing identifies TCGX Acquisition Corp. by CUSIP G8708J109 and gives its principal executive office as 245 Lytton Ave., Suite 350, Palo Alto, CA 94301 (SCHEDULE 13G, 2026-08-13).

What the percentages are based on

The following percentages are based on 9,147,500 Shares outstanding, which includes 522,500 Shares issued in a private placement and excludes the Issuer's Class B ordinary shares, as of the close of the Issuer's underwritten public offering as reported in the Issuer's Prospectus filed with the Securities and Exchange Commission on August 6, 2026.Bvf Partners L P, SCHEDULE 13G, 2026-08-12

Row 11 of each Reporting Person's cover page to this Schedule 13G sets forth the percentages of Class A ordinary shares of the Issuer beneficially owned by such Reporting Person and is incorporated by reference.RA Capital Management, L.P., SCHEDULE 13G, 2026-08-13

Timeline

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Questions about who owns TCGX Acquisition Corp.

Who owns TCGX Acquisition Corp.?

On this page, 2 holders' latest ownership filings report 5% or more of TCGX Acquisition Corp.: Bvf Partners L P (5.5%, Schedule 13G, filed 2026-08-12) and RA Capital Management, L.P. (5.5%, Schedule 13G, filed 2026-08-13).

Who are the largest shareholders of TCGX Acquisition Corp.?

By the share each holder's latest filing reports, the largest holders of TCGX Acquisition Corp. on this page are Bvf Partners L P (5.5%) and RA Capital Management, L.P. (5.5%).

When did Bvf Partners L P buy into TCGX Acquisition Corp.?

The filings give report dates, not purchase dates. The earliest filing from Bvf Partners L P on this page is the Schedule 13G, filed 2026-08-12, reporting 5.5%.

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.

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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.

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