Form
SCHEDULE 13D/A
Active or control-oriented beneficial ownership filing.
Bihua Chen - 01 Jul 2026 SCHEDULE 13D/A Report for BridgeBio Oncology Therapeutics, Inc. Common Stock (BBOT)
- Large-stake signal
-
Ownership
22%Beneficial ownership of this reported class.
Shares
17,878,594 sharesShares beneficially owned as disclosed.
Event date
01 Jul 2026Date tied to the ownership event or amendment.
Accepted by SEC
06 Jul 2026EDGAR acceptance date.
How to read this large-stake filing
- Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
- Compare this filing with the holder history and issuer page before treating the percentage as a current position.
- Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
- Class ownership
- 22%
- Symbol
- BBOT
- Shares outstanding
- 80,101,228 shares
- SEC form
- SCHEDULE 13D/A
- Accepted by SEC
- 06 Jul 2026, 16:37:41 UTC
- Event date
- 01 Jul 2026
- Source filing
- View source filing
Ownership signal
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Subject security
Names, identifiers, and filing context for this profile.
2 source fields
Source evidence
Original filing metadata and source links for verification.
4 source fields
Key filing fact
Bihua Chen disclosed 22% ownership in BridgeBio Oncology Therapeutics, Inc. Common Stock (BBOT) on 01 Jul 2026.
Key facts
- Bihua Chen filed SCHEDULE 13D/A for BridgeBio Oncology Therapeutics, Inc. Common Stock (BBOT).
- Disclosed ownership: 22%.
- Date of event: 01 Jul 2026.
Change
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 06 Jul 2026, 16:37.
Research use
- This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
- Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.
Evidence
Backed by Schedule 13D/13G
View source filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting persons
Disclosed reporting parties (8)
Names, ownership percentages, 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 |
|---|---|---|---|---|---|---|---|
| Bihua Chen | 22% | 17,878,594 | 0 | 17,878,594 | /s/ Bihua Chen | Bihua Chen, Self | 0001599214 |
| Cormorant Private Healthcare Fund III, LP | 6.1% | 4,879,995 | 0 | 4,879,995 | /s/ Bihua Chen | Bihua Chen, Managing Member of Cormorant Private Healthcare GP III, LLC, General Partner of Cormorant Private Healthcare Fund III, LP | |
| Cormorant Private Healthcare GP III, LLC | 6.1% | 4,879,995 | 0 | 4,879,995 | /s/ Bihua Chen | Bihua Chen, Managing Member | |
| Cormorant Private Healthcare Fund V, LP | 6.2% | 5,010,332 | 0 | 5,010,332 | /s/ Bihua Chen | Bihua Chen, Managing Member of Cormorant Private Healthcare GP V, LLC, General Partner of Cormorant Private Healthcare Fund V, LP | |
| Cormorant Private Healthcare GP V, LLC | 6.2% | 5,010,332 | 0 | 5,010,332 | /s/ Bihua Chen | Bihua Chen, Managing Member | |
| Cormorant Global Healthcare Master Fund, LP | 7.6% | 6,083,221 | 0 | 6,083,221 | /s/ Bihua Chen | Bihua Chen, Managing Member of Cormorant Global Healthcare GP, LLC, General Partner of Cormorant Global Healthcare Master Fund, LP | |
| Cormorant Global Healthcare GP, LLC | 7.6% | 6,083,221 | 0 | 6,083,221 | /s/ Bihua Chen | Bihua Chen, Managing Member | |
| Helix Holdings II LLC | 0% | 0 | 0 | 0 | /s/ Bihua Chen | Bihua Chen, Managing Member |
CIK / CUSIP context first