Summit Therapeutics Inc. SEC filings SMMT
Summit Therapeutics Inc. has 564 filings in SEC EDGAR's recent list, going back to Mar 4, 2014. Its latest annual report, Form ARS, was filed on Apr 17, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 4, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 4, 2026 (other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| DEF 14A | Proxy statement | Oct 19, 2026 | Nov 4, 2026 |
| PRE 14A | Preliminary proxy statement | Oct 6, 2026 | Oct 6, 2026 |
| DEFA14A | Additional proxy material | Apr 17, 2026 | — |
| DEF 14A | Proxy statement | Apr 17, 2026 | Apr 17, 2026 |
| PRE 14A | Preliminary proxy statement | Apr 6, 2026 | Apr 6, 2026 |
| DEF 14A | Proxy statement | Apr 29, 2025 | Jun 12, 2025 |
| DEFA14A | Additional proxy material | Jun 13, 2024 | — |
| DEF 14A | Proxy statement | Apr 25, 2024 | Jun 14, 2024 |
| DEF 14A | Proxy statement | Sep 19, 2023 | Oct 12, 2023 |
| PRE 14A | Preliminary proxy statement | Sep 8, 2023 | Sep 8, 2023 |
| DEF 14A | Proxy statement | Apr 21, 2023 | May 23, 2023 |
| DEF 14A | Proxy statement | Dec 13, 2022 | Jan 6, 2023 |
| PRE 14A | Preliminary proxy statement | Nov 29, 2022 | Nov 29, 2022 |
| DEF 14A | Proxy statement | Jul 6, 2022 | Jul 6, 2022 |
| PRE 14A | Preliminary proxy statement | Jun 24, 2022 | Jul 27, 2022 |
| DEFA14A | Additional proxy material | Jun 3, 2022 | — |
| DEF 14A | Proxy statement | Apr 29, 2022 | Jun 15, 2022 |
| DEFA14A | Additional proxy material | Jun 2, 2021 | — |
| DEF 14A | Proxy statement | Apr 29, 2021 | Jun 16, 2021 |
Showing 19 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
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- SMMT (Nasdaq)
- Fiscal year ends
- December 31
- Headquarters
- Miami, FL
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1599298
- Former names
- Summit Therapeutics plc (until Sep 17, 2020); Summit Corp plc (until Jan 30, 2015)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.