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 |
|---|---|---|---|
| 8-K |
Current report
Other events
|
Nov 4, 2026 | Nov 4, 2026 |
| 424B7 | Filing | Nov 4, 2026 | — |
| 10-Q | Quarterly report | Nov 4, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations, Bylaw or fiscal year change, Shareholder vote results
|
Nov 4, 2026 | Nov 4, 2026 |
| DEF 14A | Proxy statement | Oct 19, 2026 | Nov 4, 2026 |
| PRE 14A | Preliminary proxy statement | Oct 6, 2026 | Oct 6, 2026 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Bylaw or fiscal year change, Other events
|
Sep 29, 2026 | Sep 28, 2026 |
| 8-K |
Current report
Other events
|
Sep 15, 2026 | Sep 15, 2026 |
| 8-K |
Current report
Other events
|
Sep 14, 2026 | Sep 13, 2026 |
| 8-K |
Current report
Other events
|
Sep 3, 2026 | Sep 2, 2026 |
| 8-K |
Current report
Other events
|
Aug 26, 2026 | Aug 25, 2026 |
| 8-K |
Current report
Other events
|
Aug 5, 2026 | Aug 5, 2026 |
| 8-K |
Current report
Material agreement
|
Jul 23, 2026 | Jul 23, 2026 |
| 424B5 | Prospectus supplement | Jul 23, 2026 | — |
| 10-Q | Quarterly report | Jul 23, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jul 23, 2026 | Jul 23, 2026 |
| 8-K |
Current report
Other events
|
Jul 22, 2026 | Jul 22, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Jun 12, 2026 | Jun 10, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 11, 2026 | Jun 10, 2026 |
| 424B5 | Prospectus supplement | Jun 10, 2026 | — |
| S-3ASR | Automatic shelf registration | Jun 9, 2026 | — |
| 8-K |
Current report
Other events
|
Jun 3, 2026 | Jun 2, 2026 |
| 8-K |
Current report
Other events
|
Jun 1, 2026 | May 30, 2026 |
| 10-Q | Quarterly report | Apr 30, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
Apr 30, 2026 | Apr 30, 2026 |
| UPLOAD | Letter from the SEC | Apr 27, 2026 | — |
| DEFA14A | Additional proxy material | Apr 17, 2026 | — |
| ARS | Annual report to shareholders | Apr 17, 2026 | Dec 31, 2025 |
| DEF 14A | Proxy statement | Apr 17, 2026 | Apr 17, 2026 |
| CORRESP | Letter to the SEC | Apr 16, 2026 | — |
| PRE 14A | Preliminary proxy statement | Apr 6, 2026 | Apr 6, 2026 |
| UPLOAD | Letter from the SEC | Apr 2, 2026 | — |
| S-8 | Employee stock plan registration | Feb 23, 2026 | — |
| 10-K | Annual report | Feb 23, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 23, 2026 | Feb 23, 2026 |
| 8-K |
Current report
Other events
|
Jan 29, 2026 | Jan 29, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jan 12, 2026 | Jan 12, 2026 |
| 8-K |
Current report
Other events
|
Nov 7, 2025 | Nov 7, 2025 |
| S-3ASR | Automatic shelf registration | Oct 29, 2025 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale, Regulation FD disclosure
|
Oct 22, 2025 | Oct 21, 2025 |
| 10-Q | Quarterly report | Oct 20, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations, Other events
|
Oct 20, 2025 | Oct 17, 2025 |
| 8-K |
Current report
Other events
|
Sep 8, 2025 | Sep 7, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 11, 2025 | Aug 11, 2025 |
| 8-K |
Current report
Material agreement
|
Aug 11, 2025 | Aug 11, 2025 |
| 424B5 | Prospectus supplement | Aug 11, 2025 | — |
| 10-Q | Quarterly report | Aug 11, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Material agreement
|
Jun 20, 2025 | Jun 16, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Jun 17, 2025 | Jun 12, 2025 |
| 8-K |
Current report
Other events
|
May 30, 2025 | May 30, 2025 |
| S-8 | Employee stock plan registration | May 19, 2025 | — |
| 10-Q | Quarterly report | May 1, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 1, 2025 | May 1, 2025 |
| ARS | Annual report to shareholders | Apr 29, 2025 | Dec 31, 2024 |
| DEF 14A | Proxy statement | Apr 29, 2025 | Jun 12, 2025 |
| 8-K |
Current report
Other events
|
Apr 25, 2025 | Apr 25, 2025 |
| 8-K |
Current report
Other events
|
Apr 23, 2025 | Apr 23, 2025 |
| 10-K | Annual report | Feb 24, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 24, 2025 | Feb 24, 2025 |
| 8-K |
Current report
Officer or director change, Other events
|
Jan 24, 2025 | Jan 22, 2025 |
| UPLOAD | Letter from the SEC | Jan 21, 2025 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jan 13, 2025 | Jan 13, 2025 |
| CORRESP | Letter to the SEC | Jan 6, 2025 | — |
| UPLOAD | Letter from the SEC | Dec 19, 2024 | — |
| 10-Q | Quarterly report | Oct 30, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Oct 30, 2024 | Oct 30, 2024 |
| D | Filing | Sep 26, 2024 | — |
| S-3ASR | Automatic shelf registration | Sep 19, 2024 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale, Regulation FD disclosure
|
Sep 12, 2024 | Sep 11, 2024 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Sep 9, 2024 | Sep 8, 2024 |
| S-3ASR | Automatic shelf registration | Aug 6, 2024 | — |
| 10-Q | Quarterly report | Aug 6, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 6, 2024 | Aug 6, 2024 |
| 8-K |
Current report
Material agreement, Officer or director change
|
Jun 27, 2024 | Jun 27, 2024 |
| D | Filing | Jun 18, 2024 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 17, 2024 | Jun 12, 2024 |
| DEFA14A | Additional proxy material | Jun 13, 2024 | — |
| 8-K |
Current report
Material agreement, Unregistered share sale, Regulation FD disclosure
|
Jun 3, 2024 | Jun 3, 2024 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jun 3, 2024 | May 31, 2024 |
| 8-K |
Current report
Other events
|
May 30, 2024 | May 30, 2024 |
| 8-K |
Current report
Other events
|
May 24, 2024 | May 24, 2024 |
| 8-K |
Current report
Material agreement
|
May 13, 2024 | May 13, 2024 |
| 424B5 | Prospectus supplement | May 13, 2024 | — |
| S-8 | Employee stock plan registration | May 1, 2024 | — |
| 8-K |
Current report
Results of operations
|
May 1, 2024 | May 1, 2024 |
| 10-Q | Quarterly report | May 1, 2024 | Mar 31, 2024 |
| DEF 14A | Proxy statement | Apr 25, 2024 | Jun 14, 2024 |
| 8-K |
Current report
Officer or director change
|
Apr 11, 2024 | Apr 11, 2024 |
| 8-K |
Current report
Officer or director change
|
Apr 3, 2024 | Apr 2, 2024 |
| 8-K |
Current report
Other events
|
Mar 22, 2024 | Mar 22, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 12, 2024 | Mar 12, 2024 |
| 8-K |
Current report
Other events
|
Mar 5, 2024 | Mar 5, 2024 |
| EFFECT | Filing | Feb 27, 2024 | — |
| CORRESP | Letter to the SEC | Feb 23, 2024 | — |
| UPLOAD | Letter from the SEC | Feb 22, 2024 | — |
| 8-K |
Current report
Results of operations
|
Feb 20, 2024 | Feb 20, 2024 |
| S-3 | Shelf registration | Feb 20, 2024 | — |
| 10-K | Annual report | Feb 20, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Feb 15, 2024 | Feb 14, 2024 |
| 8-K |
Current report
Other events
|
Feb 8, 2024 | Feb 7, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jan 8, 2024 | Jan 8, 2024 |
| 8-K |
Current report
Other events
|
Jan 3, 2024 | Jan 3, 2024 |
| 10-Q | Quarterly report | Nov 7, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 7, 2023 | Nov 7, 2023 |
| 8-K |
Current report
Other events
|
Oct 31, 2023 | Oct 31, 2023 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Officer or director change, Shareholder vote results, Other events
|
Oct 16, 2023 | Oct 12, 2023 |
| DEF 14A | Proxy statement | Sep 19, 2023 | Oct 12, 2023 |
| PRE 14A | Preliminary proxy statement | Sep 8, 2023 | Sep 8, 2023 |
| 10-Q | Quarterly report | Aug 9, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 9, 2023 | Aug 9, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 2, 2023 | Aug 2, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 5, 2023 | Jun 4, 2023 |
| 8-K |
Current report
Other events
|
Jun 1, 2023 | Jun 1, 2023 |
| 8-K |
Current report
Shareholder vote results
|
May 25, 2023 | May 23, 2023 |
| 8-K |
Current report
Results of operations
|
May 11, 2023 | May 11, 2023 |
| 10-Q | Quarterly report | May 11, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Other events
|
May 9, 2023 | May 9, 2023 |
| 8-K |
Current report
Other events
|
May 3, 2023 | May 3, 2023 |
| EFFECT | Filing | Apr 27, 2023 | — |
| CORRESP | Letter to the SEC | Apr 25, 2023 | — |
| DEF 14A | Proxy statement | Apr 21, 2023 | May 23, 2023 |
| UPLOAD | Letter from the SEC | Mar 22, 2023 | — |
| 8-K |
Current report
Other events
|
Mar 17, 2023 | Mar 17, 2023 |
| S-3 | Shelf registration | Mar 17, 2023 | — |
| 10-K | Annual report | Mar 9, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations
|
Mar 9, 2023 | Mar 9, 2023 |
| 8-K |
Current report
Other events
|
Mar 3, 2023 | Mar 1, 2023 |
| 8-K |
Current report
Other events
|
Feb 23, 2023 | Feb 23, 2023 |
| 424B4 | Prospectus | Feb 7, 2023 | — |
| EFFECT | Filing | Feb 3, 2023 | — |
| CORRESP | Letter to the SEC | Jan 31, 2023 | — |
| 8-K |
Current report
Other events
|
Jan 30, 2023 | Jan 30, 2023 |
| 8-K |
Current report
Other events
|
Jan 27, 2023 | Jan 27, 2023 |
| S-3/A | Amendment to form s-3 | Jan 23, 2023 | — |
| CORRESP | Letter to the SEC | Jan 20, 2023 | — |
| 8-K |
Current report
Material agreement, Officer or director change, Bylaw or fiscal year change, Other events
|
Jan 20, 2023 | Jan 16, 2023 |
| UPLOAD | Letter from the SEC | Jan 12, 2023 | — |
| 8-K |
Current report
Results of operations, Shareholder vote results, Regulation FD disclosure
|
Jan 9, 2023 | Jan 6, 2023 |
| 8-K |
Current report
Officer or director change
|
Dec 27, 2022 | Dec 22, 2022 |
| 8-K |
Current report
Other events
|
Dec 21, 2022 | Dec 21, 2022 |
| S-3 | Shelf registration | Dec 21, 2022 | — |
| 10-K/A | Amended annual report | Dec 21, 2022 | Dec 31, 2021 |
| DEF 14A | Proxy statement | Dec 13, 2022 | Jan 6, 2023 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Officer or director change, Other events
|
Dec 6, 2022 | Dec 5, 2022 |
| PRE 14A | Preliminary proxy statement | Nov 29, 2022 | Nov 29, 2022 |
| 8-K |
Current report
Officer or director change
|
Nov 17, 2022 | Nov 15, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 9, 2022 | Nov 9, 2022 |
| 10-Q | Quarterly report | Nov 9, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 20, 2022 | Oct 20, 2022 |
| 8-K |
Current report
Other events
|
Oct 4, 2022 | Sep 28, 2022 |
| 8-K |
Current report
Officer or director change
|
Oct 3, 2022 | Sep 28, 2022 |
| 8-K |
Current report
Other events
|
Aug 16, 2022 | Aug 15, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 11, 2022 | Aug 11, 2022 |
| 10-Q | Quarterly report | Aug 11, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Other events
|
Aug 9, 2022 | Aug 9, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 2, 2022 | Aug 2, 2022 |
| 8-K |
Current report
Shareholder vote results, Other events
|
Jul 29, 2022 | Jul 27, 2022 |
| 8-K |
Current report
Officer or director change
|
Jul 26, 2022 | Jul 25, 2022 |
| 8-K |
Current report
Other events
|
Jul 18, 2022 | Jul 18, 2022 |
| 424B4 | Prospectus | Jul 18, 2022 | — |
| 8-K |
Current report
Other events
|
Jul 14, 2022 | Jul 14, 2022 |
| DEF 14A | Proxy statement | Jul 6, 2022 | Jul 6, 2022 |
| PRE 14A | Preliminary proxy statement | Jun 24, 2022 | Jul 27, 2022 |
| 8-K |
Current report
Other events
|
Jun 22, 2022 | Jun 22, 2022 |
| 8-K |
Current report
Shareholder vote results
|
Jun 22, 2022 | Jun 16, 2022 |
| DEFA14A | Additional proxy material | Jun 3, 2022 | — |
| 8-K |
Current report
Officer or director change
|
Jun 1, 2022 | Jun 1, 2022 |
| 10-Q | Quarterly report | May 11, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Results of operations
|
May 11, 2022 | May 11, 2022 |
| DEF 14A | Proxy statement | Apr 29, 2022 | Jun 15, 2022 |
| CT ORDER | Filing | Apr 14, 2022 | — |
| CT ORDER | Filing | Apr 14, 2022 | — |
| S-8 | Employee stock plan registration | Apr 6, 2022 | — |
| 10-K | Annual report | Mar 17, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Results of operations
|
Mar 17, 2022 | Mar 17, 2022 |
| 8-K |
Current report
Material agreement, New debt
|
Mar 11, 2022 | Mar 10, 2022 |
| 8-K |
Current report
Other events
|
Feb 9, 2022 | Feb 9, 2022 |
| 8-K |
Current report
Other events
|
Jan 25, 2022 | Jan 25, 2022 |
| 8-K |
Current report
Officer or director change
|
Jan 12, 2022 | Jan 7, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 20, 2021 | Dec 20, 2021 |
| 10-Q | Quarterly report | Nov 15, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Results of operations
|
Nov 15, 2021 | Nov 15, 2021 |
| 8-K |
Current report
Officer or director change, Other events
|
Nov 3, 2021 | Nov 3, 2021 |
| 8-K |
Current report
Officer or director change, Other events
|
Oct 8, 2021 | Oct 7, 2021 |
| 8-K |
Current report
Other events
|
Sep 21, 2021 | Sep 21, 2021 |
| 10-Q | Quarterly report | Aug 12, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Results of operations
|
Aug 11, 2021 | Aug 11, 2021 |
| 8-K |
Current report
Other events
|
Aug 11, 2021 | Aug 11, 2021 |
| 8-K |
Current report
Officer or director change
|
Jul 9, 2021 | Jul 2, 2021 |
| 8-K |
Current report
Shareholder vote results
|
Jun 22, 2021 | Jun 16, 2021 |
| CT ORDER | Filing | Jun 17, 2021 | — |
| DEFA14A | Additional proxy material | Jun 2, 2021 | — |
| 8-K |
Current report
Officer or director change
|
May 28, 2021 | May 28, 2021 |
| 8-K |
Current report
Auditor change
|
May 26, 2021 | May 24, 2021 |
| 8-K |
Current report
Results of operations
|
May 17, 2021 | May 17, 2021 |
| 10-Q | Quarterly report | May 17, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Other events
|
May 13, 2021 | May 12, 2021 |
| 8-K |
Current report
Other events
|
May 7, 2021 | May 5, 2021 |
| 8-K |
Current report
Officer or director change
|
May 4, 2021 | Apr 28, 2021 |
| DEF 14A | Proxy statement | Apr 29, 2021 | Jun 16, 2021 |
Showing 200 filings, the most recent 200. 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
- 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)
Other Pharmaceutical Preparations companies
- ELI LILLY & Co LLY
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.