Sutro Biopharma, Inc. SEC filings STRO
Sutro Biopharma, Inc. has 624 filings in SEC EDGAR's recent list, going back to Nov 8, 2006. Its latest annual report, Form ARS, was filed on Apr 22, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 12, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Aug 12, 2026 (results of operations, regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 424B3 | Prospectus | Apr 1, 2026 | — |
| S-3 | Shelf registration | Mar 23, 2026 | — |
| S-8 | Employee stock plan registration | Mar 23, 2026 | — |
| 424B5 | Prospectus supplement | Feb 10, 2026 | — |
| S-8 | Employee stock plan registration | May 30, 2025 | — |
| S-8 | Employee stock plan registration | Feb 27, 2025 | — |
| 424B5 | Prospectus supplement | Apr 2, 2024 | — |
| S-8 | Employee stock plan registration | Feb 27, 2024 | — |
| 424B5 | Prospectus supplement | Feb 9, 2024 | — |
| S-3 | Shelf registration | Nov 13, 2023 | — |
| S-8 | Employee stock plan registration | Feb 27, 2023 | — |
| S-8 | Employee stock plan registration | Aug 31, 2022 | — |
| S-8 | Employee stock plan registration | Mar 1, 2022 | — |
| POS AM | Filing | Mar 1, 2022 | — |
| S-8 | Employee stock plan registration | Aug 9, 2021 | — |
| S-3ASR | Automatic shelf registration | Apr 2, 2021 | — |
| S-8 | Employee stock plan registration | Mar 18, 2021 | — |
| 424B5 | Prospectus supplement | Dec 9, 2020 | — |
| S-3MEF | Filing | Dec 8, 2020 | — |
| 424B5 | Prospectus supplement | Dec 7, 2020 | — |
| 424B5 | Prospectus supplement | May 12, 2020 | — |
| 424B5 | Prospectus supplement | May 11, 2020 | — |
| S-8 | Employee stock plan registration | Mar 16, 2020 | — |
| 424B5 | Prospectus supplement | Oct 11, 2019 | — |
| S-3 | Shelf registration | Oct 4, 2019 | — |
| S-8 | Employee stock plan registration | Apr 1, 2019 | — |
| 424B4 | Prospectus | Sep 27, 2018 | — |
| S-8 | Employee stock plan registration | Sep 27, 2018 | — |
| S-1MEF | Filing | Sep 26, 2018 | — |
| S-1/A | Amended registration statement | Sep 17, 2018 | — |
| S-1 | Registration statement | Aug 29, 2018 | — |
Showing 31 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.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Biological Products, (No Diagnostic Substances) (SIC 2836)
- Listed as
- STRO (Nasdaq)
- Fiscal year ends
- December 31
- Headquarters
- South San Francisco, CA
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1382101
- Former names
- SUTRO BIOPHARMA INC (until Nov 8, 2018); Fundamental Applied Biology Inc (until Oct 24, 2007)
Other Biological Products, (No Diagnostic Substances) companies
- Amgen Inc AMGN
- Gilead Sciences, Inc. GILD
- 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.