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 |
|---|---|---|---|
| DEFA14A | Additional proxy material | Apr 22, 2026 | — |
| DEF 14A | Proxy statement | Apr 22, 2026 | Jun 5, 2026 |
| DEFA14A | Additional proxy material | Apr 25, 2025 | — |
| DEF 14A | Proxy statement | Apr 25, 2025 | Jun 6, 2025 |
| PRE 14A | Preliminary proxy statement | Apr 14, 2025 | Jun 6, 2025 |
| DEFA14A | Additional proxy material | May 17, 2024 | — |
| DEF 14A | Proxy statement | Apr 26, 2024 | Jun 6, 2024 |
| DEFA14A | Additional proxy material | Apr 26, 2024 | — |
| DEFA14A | Additional proxy material | Apr 28, 2023 | — |
| DEF 14A | Proxy statement | Apr 28, 2023 | Jun 8, 2023 |
| PRE 14A | Preliminary proxy statement | Apr 14, 2023 | Jun 8, 2023 |
| DEFA14A | Additional proxy material | Apr 25, 2022 | — |
| DEF 14A | Proxy statement | Apr 25, 2022 | Jun 6, 2022 |
| DEF 14A | Proxy statement | Apr 29, 2021 | Jun 3, 2021 |
| DEF 14A | Proxy statement | Apr 24, 2020 | Jun 5, 2020 |
| DEFA14A | Additional proxy material | Apr 26, 2019 | — |
| DEF 14A | Proxy statement | Apr 26, 2019 | Jun 7, 2019 |
Showing 17 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
- 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)
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All 182 Biological Products, (No Diagnostic Substances) companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.