TRex Bio, Inc. SEC filings TRXB
TRex Bio, Inc. has 38 filings in SEC EDGAR's recent list, going back to Jun 26, 2026. The most recent current report (Form 8-K) was filed on Oct 13, 2026 (bylaw or fiscal year change). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 16, 2026 | — |
| SCHEDULE 13D | Ownership over 5% (active) | Oct 16, 2026 | — |
| SCHEDULE 13D | Ownership over 5% (active) | Oct 16, 2026 | — |
| 4 | Insider transaction | Oct 15, 2026 | Oct 13, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Oct 15, 2026 | — |
| 4 | Insider transaction | Oct 13, 2026 | Oct 13, 2026 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Oct 13, 2026 | Oct 13, 2026 |
| 4 | Insider transaction | Oct 13, 2026 | Oct 8, 2026 |
| S-8 | Employee stock plan registration | Oct 9, 2026 | — |
| 424B4 | Prospectus | Oct 9, 2026 | — |
| EFFECT | Filing | Oct 8, 2026 | — |
| 3 | Initial insider ownership | Oct 8, 2026 | Oct 8, 2026 |
| 4 | Insider transaction | Oct 8, 2026 | Oct 8, 2026 |
| 4 | Insider transaction | Oct 8, 2026 | Oct 8, 2026 |
| 4 | Insider transaction | Oct 8, 2026 | Oct 8, 2026 |
| 4 | Insider transaction | Oct 8, 2026 | Oct 8, 2026 |
| 4 | Insider transaction | Oct 8, 2026 | Oct 8, 2026 |
| 4 | Insider transaction | Oct 8, 2026 | Oct 8, 2026 |
| 3 | Initial insider ownership | Oct 8, 2026 | Oct 8, 2026 |
| 3 | Initial insider ownership | Oct 8, 2026 | Oct 8, 2026 |
| 3 | Initial insider ownership | Oct 8, 2026 | Oct 8, 2026 |
| 3 | Initial insider ownership | Oct 8, 2026 | Oct 8, 2026 |
| 3 | Initial insider ownership | Oct 8, 2026 | Oct 8, 2026 |
| 3 | Initial insider ownership | Oct 8, 2026 | Oct 8, 2026 |
| 3 | Initial insider ownership | Oct 8, 2026 | Oct 8, 2026 |
| 3 | Initial insider ownership | Oct 8, 2026 | Oct 8, 2026 |
| 3 | Initial insider ownership | Oct 8, 2026 | Oct 8, 2026 |
| 3 | Initial insider ownership | Oct 8, 2026 | Oct 8, 2026 |
| 3 | Initial insider ownership | Oct 8, 2026 | Oct 8, 2026 |
| 3 | Initial insider ownership | Oct 8, 2026 | Oct 8, 2026 |
| 3 | Initial insider ownership | Oct 8, 2026 | Oct 8, 2026 |
| CERT | Filing | Oct 8, 2026 | — |
| 8-A12B | Filing | Oct 6, 2026 | — |
| S-1/A | Amended registration statement | Oct 5, 2026 | — |
| S-1 | Registration statement | Sep 18, 2026 | — |
| DRS/A | Filing | Aug 21, 2026 | — |
| DRS/A | Filing | Jul 31, 2026 | — |
| DRS | Filing | Jun 26, 2026 | — |
Showing 38 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Biological Products, (No Diagnostic Substances) (SIC 2836)
- Listed as
- TRXB (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- South San Francisco, CA
- SEC filer status
- , Emerging growth company
- SEC CIK
- 2139097
Other Biological Products, (No Diagnostic Substances) companies
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- Moderna, Inc. MRNA
- Argenx SE ARGX
- Revolution Medicines, Inc. RVMD
- Biogen Inc. BIIB
- BioNTech SE BNTX
- Exelixis, Inc. EXEL
All 182 Biological Products, (No Diagnostic Substances) companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.