---
schema_version: "secwatch.filing_event.v1"
accession: "0001599298-24-000064"
form_type: "8-K"
ticker: "SMMT"
cik: "0001599298"
company_name: "Summit Therapeutics Inc."
filed_at: "2024-04-11T23:59:59+00:00"
generated_at: "2026-06-04T00:04:34.763252+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Summit Therapeutics appoints Dr. Mostafa Ronaghi to board of directors

## Summary
- Dr. Ronaghi elected to board and Compensation Committee effective April 11, 2024.
- Received option grant per non-employee director compensation policy; indemnification agreement.
- Former CTO and SVP at Illumina (2008-2021); co-founded GRAIL in 2016.
- Summit CEO cites Ronaghi's expertise in genomics to help maximize ivonescimab potential.

## SEC filing metadata
- accession: 0001599298-24-000064
- form_type: 8-K
- ticker: SMMT
- cik: 0001599298
- company_name: Summit Therapeutics Inc.
- filed_at: 2024-04-11T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1599298/000159929824000064/0001599298-24-000064-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1599298/000159929824000064/smmt-20240411.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001599298-24-000064
- JSON: https://secwatch.observer/filing/0001599298-24-000064.json
- Plain text: https://secwatch.observer/filing/0001599298-24-000064.txt

## Key facts
- Executive change
  Mostafa Ronaghi was appointed as Director at Summit Therapeutics Inc..
  - Action: appointed
  - Role: Director
  source text: the board of directors (the “Board”) of Summit Therapeutics Inc. (the “Company”) unanimously approved the election of Mostafa Ronaghi, PhD, as a director of the Company and the appointment of Dr. Ronaghi to serve on the Compensation Committee of the Board.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1599298/000159929824000064/0001599298-24-000064-index.htm

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