Comparable stake leader
BIOTECHNOLOGY VALUE FUND L P
SEC ownership of TCGX Acquisition Corp.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0002137965.
Disclosed value leader
—
Comparable rows
2/4
Latest evidence
06 Aug 2026
- Parsed ownership sources
-
13D/G and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
BIOTECHNOLOGY VALUE FUND L P
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
2 of 4
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
BIOTECHNOLOGY VALUE FUND L P
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
06 Aug 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0002137965
- Issuer location
- Grand Cayman
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of TCGX Acquisition Corp. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BIOTECHNOLOGY VALUE FUND L P
Disclosed value leader
—
Comparable rows
2/4
Latest evidence
06 Aug 2026
13D/G
3/4/5
Lead comparable stake: 5.5%
2 rows are not safely comparable across share classes.
13D/G row: BIOTECHNOLOGY VALUE FUND L P
Quick read
BIOTECHNOLOGY VALUE FUND L P leads the comparable SEC ownership view at 5.5%.
2 of 4 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BIOTECHNOLOGY VALUE FUND L P's linked filing trail.
Comparable ownership
Top 2
BIOTECHNOLOGY VALUE FUND L P
5.5%
RA CAPITAL MANAGEMENT, L.P.
5.5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-4 of 4 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BIOTECHNOLOGY VALUE FUND L P |
13D/G
BVF PARTNERS L P/IL
|
5.5%
|
—
500,000 shares
|
$0 | 05 Aug 2026 |
| RA CAPITAL MANAGEMENT, L.P. |
13D/G
|
5.5%
|
—
500,000 shares
|
$0 | 06 Aug 2026 |
| Chen-Ming Yu |
3/4/5
Chief Executive Officer, 10%+ Owner
|
—
class O/S missing
|
—
436,250 shares
|
— | 06 Aug 2026 |
| TCGX Sponsor, LLC |
3/4/5
10%+ Owner
|
—
class O/S missing
|
—
436,250 shares
|
— | 06 Aug 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 03 Sep 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-6 of 6 reporting-owner rows connected to TCGX Acquisition Corp.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
6
Largest Forms 3/4/5 holder
Chen-Ming Yu
Net 12M change
$0
Latest report
06 Aug 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Chen-Ming Yu | Chief Executive Officer, 10%+ Owner | Mixed | 06 Aug 2026 | |||
| TCGX Sponsor, LLC | 10%+ Owner | Mixed | 06 Aug 2026 | |||
| Ying Huang | Director | Mixed | 04 Aug 2026 | |||
| Lin Wei | Director | Mixed | 04 Aug 2026 | |||
| Andrew Cheng | Director | Mixed | 04 Aug 2026 | |||
| Craig David Skaling | Chief Financial Officer | Mixed | 04 Aug 2026 |
Recent insider transactions for TCGX Acquisition Corp.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Yu Chen-Ming | Class A Ordinary Shares | Award | 436,250 | 436,250 | 06 Aug 2026 | See Footnote | ||||
| Chen-Ming Yu | Class A Ordinary Shares | Award | 436,250 | 436,250 | 06 Aug 2026 | See Footnote |
* marks a reported price that did not pass the local price check.