Form 4 holding
Director
TRex Bio, Inc.
- Security class
- Common Stock
- Shares / value
- 41,871
- Estimated value
- Report date
- 13 Oct 2026
- Price
- Ownership
- Direct
Joel S. Marcus - Director at TRex Bio, Inc.
Issuer-level insider activity
- Role
- Director
- Entity type
- Individual
- Source filing history
- Open source filing history
Identity
Names, identifiers, and filing context for this profile.
1 identity field
Source evidence
Original filing metadata and source links for verification.
1 source field
No buys or sells have been reported by Joel S. Marcus since 19 Oct 2025
Reported holdings for Joel S. Marcus in TRex Bio, Inc.
Form 4 holding
Director
TRex Bio, Inc.
- Security class
- Stock Option (Right to Buy)
- Shares / value
- 17,500
- Estimated value
- Report date
- 08 Oct 2026
- Price
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
Form 4 holding
Director
TRex Bio, Inc.
- Security class
- Series B Convertible Preferred Stock
- Shares / value
- 0
- Estimated value
- Report date
- 13 Oct 2026
- Price
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
Transaction history for Joel S. Marcus in TRex Bio, Inc.
| Sym | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares after | Date | Ownership |
|---|
* marks a reported price that did not pass the local price check.