# EDGAR Filing Document

**Accession Number:** 0001599298
**File Stem:** 9999999995-23-000275
**Filing Date:** 2023-2
**Character Count:** 1503
**Document Hash:** f732ee70231ca1c90d4dc451ec99ef11
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**9999999995-23-000275.hdr.sgml**: 20230206

**ACCESSION NUMBER**: 9999999995-23-000275

**CONFORMED SUBMISSION TYPE**: EFFECT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230203

**DATE AS OF CHANGE**: 20230206

**EFFECTIVENESS DATE**: 20230203

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Summit Therapeutics Inc.
- **CENTRAL INDEX KEY:** 0001599298
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** EFFECT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-268932
- **FILM NUMBER:** 23588233

**BUSINESS ADDRESS:**
- **STREET 1:** 2882 SAND HILL ROAD
- **STREET 2:** SUITE 106
- **CITY:** MENLO PARK
- **STATE:** CA
- **ZIP:** 94025
- **BUSINESS PHONE:** 617-514-7149

**MAIL ADDRESS:**
- **STREET 1:** 2882 SAND HILL ROAD
- **STREET 2:** SUITE 106
- **CITY:** MENLO PARK
- **STATE:** CA
- **ZIP:** 94025

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Summit Therapeutics plc
- **DATE OF NAME CHANGE:** 20150219

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Summit Corp plc
- **DATE OF NAME CHANGE:** 20140205

### UNITED STATES
### SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## Notice of Effectiveness

**Date:** February 3, 2023

**Time:** 16:00:00

**Form Type:** S-3

---

**CIK:** 0001599298

**Company Name:** Summit Therapeutics Inc.

**File Number:** 333-268932