As of October 27, 2026, 4 holders' latest Schedule 13D or 13G filings report owning 5% or more of TCGX Acquisition Corp. II. The largest reported stake is Deep Track Capital, LP's, at 9.9%. 4 filings are on record since October 23, 2026 (Schedule 13G, October 23, 2026).
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Key facts
- · Holder: Third Rock Ventures VI, L.P. · Percent: 9.5% · SCHEDULE 13G
- · Holder: RA Capital Management, L.P. · Percent: 7.2% · SCHEDULE 13G
- · Holder: Deep Track Capital, LP · Percent: 9.9% · SCHEDULE 13G
- · Holder: Squadron Master Fund LP · Percent: 5% · SCHEDULE 13G
TCGX Acquisition Corp. II has 4 Schedule 13D or 13G filings on record since 2026-10-23. 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 |
|---|---|---|---|---|
| Deep Track Capital, LP | 9.9% | 990,000 | SCHEDULE 13G, 2026-10-23 | 2026-10-16 |
| Third Rock Ventures VI, L.P. | 9.5% | 990,000 | SCHEDULE 13G, 2026-10-26 | 2026-10-19 |
| RA Capital Management, L.P. | 7.2% | 750,000 | SCHEDULE 13G, 2026-10-26 | 2026-10-19 |
| Squadron Master Fund LP | 5% | 650,000 | SCHEDULE 13G, 2026-10-23 | 2026-10-16 |
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More on TCGX Acquisition Corp. II and the records around it.
TCGX Acquisition Corp. II elsewhere on the record
- IPO filing Oct 2026
Companies that share a holder
- Squadron Master Fund LP also filed stake reports on 13 other companies: C4 Therapeutics, Inc. (Aug 2026), Lipocine Inc. (Aug 2026), NextCure, Inc. (Aug 2026)
- Deep Track Capital, LP also filed stake reports on 59 other companies: Alector, Inc. (Oct 2026), Frazier Life Sciences Acquisition Corp. II (Oct 2026), JATT III Acquisition Corp (Sep 2026)
- RA Capital Management, L.P. also filed stake reports on 99 other companies: Alector, Inc. (Oct 2026), Frazier Life Sciences Acquisition Corp. II (Oct 2026), Corbus Pharmaceuticals Holdings, Inc. (Sep 2026)
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Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2026-10-23 | Deep Track Capital, LP | 9.9% | SCHEDULE 13G |
| 2026-10-23 | Squadron Master Fund LP | 5% | SCHEDULE 13G |
| 2026-10-26 | Third Rock Ventures VI, L.P. | 9.5% | SCHEDULE 13G |
| 2026-10-26 | RA Capital Management, L.P. | 7.2% | 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.