---
schema_version: "secwatch.filing_event.v1"
accession: "0001193805-21-001429"
form_type: "8-K"
ticker: "SMMT"
cik: "0001599298"
company_name: "Summit Therapeutics Inc."
filed_at: "2021-10-08T23:59:59+00:00"
generated_at: "2026-06-28T21:51:36.143429+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.45
calibrated_materiality_score: 0.45
confidence: "high"
source: SEC EDGAR
---

# Summit Therapeutics appoints Kenneth A. Clark, partner at WSGR, to Board; Erdtmann resigns

## Summary
- Kenneth A. Clark elected to board of directors, effective October 7, 2021.
- Clark is a partner at Wilson Sonsini Goodrich & Rosati, specializing in biotech strategic M&A and financing.
- Ramses Erdtmann resigned to pursue other opportunities; resignation not due to any disagreement with the company.
- Clark appointed to Audit, Compensation, and Nominating and Corporate Governance Committees.
- Received grant of stock options under Summit's non-employee director compensation policy.

## SEC filing metadata
- accession: 0001193805-21-001429
- form_type: 8-K
- ticker: SMMT
- cik: 0001599298
- company_name: Summit Therapeutics Inc.
- filed_at: 2021-10-08T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.45
- calibrated_materiality_score: 0.45
- confidence: high
- sec_items: 5.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1599298/000119380521001429/0001193805-21-001429-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1599298/000119380521001429/e620998_8k-summit.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193805-21-001429
- JSON: https://secwatch.observer/filing/0001193805-21-001429.json
- Plain text: https://secwatch.observer/filing/0001193805-21-001429.txt

## Key facts
- Executive change
  Kenneth A. Clark was elected as Director at Summit Therapeutics Inc..
  - Action: elected
  - Role: Director
  source text: Effective on October 7, 2021, the board of directors (the “Board”) of Summit Therapeutics Inc. (the “Company”) unanimously approved (i) the election of Kenneth A. Clark as a director of the Company and (ii) the appointment of Mr. Clark to serve on each of the Audit, Compensation, and Nominating and Corporate Governance Committees.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1599298/000119380521001429/0001193805-21-001429-index.htm
- Executive change
  Ramses Erdtmann resigned as Director at Summit Therapeutics Inc..
  - Action: resigned
  - Role: Director
  source text: On October 7, 2021, Ramses Erdtmann resigned from the Board to pursue other professional opportunities.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1599298/000119380521001429/0001193805-21-001429-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.