# Summit Therapeutics Inc.: filings

SMMT · Nasdaq · CIK 1599298 · [Healthcare](/sectors/healthcare.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/smmt.md) · [Financials](/companies/smmt/financials.md) · [Filings](/companies/smmt/filings.md) · [Insiders](/companies/smmt/insiders.md)

## Reports and events: 309 filings

Newest first, by EDGAR acceptance time (Eastern). Filter with ?form= one of: `periodic`, `8-K`, `10-K`, `10-Q`, `4`, `proxy`, `13dg`, `all`, or any form this company filed (8-K 125, 6-K 115, 4 106, SC 13D/A 22, 3 21, 10-Q 18, UPLOAD 16, CORRESP 13, CT ORDER 13, DEF 14A 10, EFFECT 10, 10-K 6, 20-F 6, 424B5 6, D 6, S-8 6, SC 13G/A 6, 424B4 5, PRE 14A 5, S-3 5, SC 13D 5, DEFA14A 4, S-3ASR 4, F-3 3, 4/A 2, ARS 2, F-1/A 2, SC 13G 2, 10-K/A 1, 25-NSE 1, 424B3 1, 5 1, 6-K/A 1, 8-A12B 1, 8-K12B 1, 8-K/A 1, CERTNAS 1, DRS 1, DRS/A 1, F-1 1, F-3/A 1, F-6 1, S-3/A 1, S-8 POS 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-10-19 | 11:01 ET | [DEF 14A](/filings/0001193125-26-424642.md) | Proxy statement, period 2026-11-04 | 0001193125-26-424642 |
| 2026-09-29 | 01:39 ET | [8-K](/filings/0001193125-26-405776.md) | 1.01 Entry into a material agreement; 3.02 Unregistered sale of equity; 5.03 Amendment to articles or bylaws; 8.01 Other events; 9.01 Financial statements and exhibits | 0001193125-26-405776 |
| 2026-09-15 | 12:44 ET | [8-K](/filings/0001599298-26-000081.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001599298-26-000081 |
| 2026-09-14 | 12:37 ET | [8-K](/filings/0001599298-26-000078.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001599298-26-000078 |
| 2026-09-03 | 13:21 ET | [8-K](/filings/0001599298-26-000076.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001599298-26-000076 |
| 2026-08-26 | 13:17 ET | [8-K](/filings/0001599298-26-000074.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001599298-26-000074 |
| 2026-08-05 | 11:32 ET | [8-K](/filings/0001599298-26-000071.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001599298-26-000071 |
| 2026-07-23 | 20:34 ET | [8-K](/filings/0001193125-26-314214.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001193125-26-314214 |
| 2026-07-23 | 20:08 ET | [10-Q](/filings/0001599298-26-000068.md) | Quarterly report, period 2026-06-30 | 0001599298-26-000068 |
| 2026-07-23 | 20:07 ET | [8-K](/filings/0001599298-26-000067.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001599298-26-000067 |
| 2026-07-22 | 11:10 ET | [8-K](/filings/0001599298-26-000058.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001599298-26-000058 |
| 2026-06-12 | 20:11 ET | [8-K](/filings/0001599298-26-000054.md) | 5.07 Shareholder vote results | 0001599298-26-000054 |
| 2026-06-11 | 11:44 ET | [8-K](/filings/0001599298-26-000052.md) | 7.01 Regulation FD disclosure | 0001599298-26-000052 |
| 2026-06-03 | 12:01 ET | [8-K](/filings/0001599298-26-000049.md) | 8.01 Other events | 0001599298-26-000049 |
| 2026-06-01 | 10:57 ET | [8-K](/filings/0001599298-26-000043.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001599298-26-000043 |
| 2026-04-30 | 21:00 ET | [10-Q](/filings/0001599298-26-000039.md) | Quarterly report, period 2026-03-31 | 0001599298-26-000039 |
| 2026-04-30 | 20:40 ET | [8-K](/filings/0001599298-26-000037.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001599298-26-000037 |
| 2026-04-17 | 20:12 ET | [DEF 14A](/filings/0001599298-26-000029.md) | Proxy statement, period 2026-04-17 | 0001599298-26-000029 |
| 2026-02-23 | 21:10 ET | [10-K](/filings/0001599298-26-000015.md) | Annual report, period 2025-12-31 | 0001599298-26-000015 |
| 2026-02-23 | 21:07 ET | [8-K](/filings/0001599298-26-000014.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001599298-26-000014 |
| 2026-01-29 | 12:35 ET | [8-K](/filings/0001599298-26-000006.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001599298-26-000006 |
| 2026-01-12 | 12:43 ET | [8-K](/filings/0001599298-26-000004.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001599298-26-000004 |
| 2025-11-07 | 14:23 ET | [8-K](/filings/0001599298-25-000166.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001599298-25-000166 |
| 2025-10-22 | 12:56 ET | [8-K](/filings/0001193125-25-245790.md) | 1.01 Entry into a material agreement; 3.02 Unregistered sale of equity; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-25-245790 |
| 2025-10-20 | 11:51 ET | [10-Q](/filings/0001599298-25-000159.md) | Quarterly report, period 2025-09-30 | 0001599298-25-000159 |
| 2025-10-20 | 11:28 ET | [8-K](/filings/0001599298-25-000156.md) | 2.02 Results of operations; 8.01 Other events; 9.01 Financial statements and exhibits | 0001599298-25-000156 |
| 2025-09-08 | 11:45 ET | [8-K](/filings/0001599298-25-000137.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001599298-25-000137 |
| 2025-08-11 | 21:13 ET | [8-K](/filings/0001599298-25-000128.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001599298-25-000128 |
| 2025-08-11 | 20:51 ET | [8-K](/filings/0001193125-25-178022.md) | 1.01 Entry into a material agreement; 9.01 Financial statements and exhibits | 0001193125-25-178022 |
| 2025-08-11 | 20:23 ET | [10-Q](/filings/0001599298-25-000126.md) | Quarterly report, period 2025-06-30 | 0001599298-25-000126 |
| 2025-06-20 | 21:07 ET | [8-K](/filings/0001599298-25-000120.md) | 1.01 Entry into a material agreement | 0001599298-25-000120 |
| 2025-06-17 | 20:13 ET | [8-K](/filings/0001599298-25-000116.md) | 5.07 Shareholder vote results | 0001599298-25-000116 |
| 2025-05-30 | 20:17 ET | [8-K](/filings/0001599298-25-000099.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001599298-25-000099 |
| 2025-05-01 | 20:11 ET | [10-Q](/filings/0001599298-25-000089.md) | Quarterly report, period 2025-03-31 | 0001599298-25-000089 |
| 2025-05-01 | 20:10 ET | [8-K](/filings/0001599298-25-000088.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001599298-25-000088 |
| 2025-04-29 | 20:44 ET | [DEF 14A](/filings/0001599298-25-000075.md) | Proxy statement, period 2025-06-12 | 0001599298-25-000075 |
| 2025-04-25 | 20:38 ET | [8-K](/filings/0001599298-25-000066.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001599298-25-000066 |
| 2025-04-23 | 12:54 ET | [8-K](/filings/0001599298-25-000064.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001599298-25-000064 |
| 2025-02-24 | 11:53 ET | [10-K](/filings/0001599298-25-000048.md) | Annual report, period 2024-12-31 | 0001599298-25-000048 |
| 2025-02-24 | 11:08 ET | [8-K](/filings/0001599298-25-000044.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001599298-25-000044 |
| 2025-01-24 | 21:23 ET | [8-K](/filings/0001599298-25-000038.md) | 5.02 Departure or appointment of officers or directors; 8.01 Other events | 0001599298-25-000038 |
| 2025-01-13 | 13:37 ET | [8-K](/filings/0001599298-25-000034.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001599298-25-000034 |
| 2024-10-30 | 11:33 ET | [10-Q](/filings/0001599298-24-000158.md) | Quarterly report, period 2024-09-30 | 0001599298-24-000158 |
| 2024-10-30 | 11:06 ET | [8-K](/filings/0001599298-24-000156.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001599298-24-000156 |
| 2024-09-13 | 21:54 ET | [SC 13D/A](/filings/0001193125-24-218980.md) | Ownership report, active investor, amended | 0001193125-24-218980 |
| 2024-09-12 | 10:49 ET | [8-K](/filings/0001193125-24-217618.md) | 1.01 Entry into a material agreement; 3.02 Unregistered sale of equity; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-24-217618 |
| 2024-09-09 | 11:23 ET | [8-K](/filings/0001599298-24-000128.md) | 7.01 Regulation FD disclosure; 8.01 Other events; 9.01 Financial statements and exhibits | 0001599298-24-000128 |
| 2024-08-06 | 11:37 ET | [10-Q](/filings/0001599298-24-000117.md) | Quarterly report, period 2024-06-30 | 0001599298-24-000117 |
| 2024-08-06 | 11:14 ET | [8-K](/filings/0001599298-24-000113.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001599298-24-000113 |
| 2024-06-27 | 20:27 ET | [8-K](/filings/0001599298-24-000103.md) | 1.01 Entry into a material agreement; 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001599298-24-000103 |

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Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 15:14 ET. No prices; not investment advice.