---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-004896"
form_type: "8-K/A"
ticker: "CNTA"
cik: "0001847903"
company_name: "Centessa Pharmaceuticals plc"
filed_at: "2026-01-07T23:59:59+00:00"
generated_at: "2026-05-16T11:24:40.538620+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Centessa appoints Mario Accardi CEO effective Jan 1, 2026; base salary $600K, target bonus 50%

## Summary
- Employment Agreement signed Jan 5, 2026; base salary $600,000 per year.
- Target annual incentive bonus set at 50% of base salary, first eligible in 2027.
- Termination without cause or for good reason (outside 1-yr post-sale): 12 months salary continuation.
- Termination within 1 year post-sale event: lump sum of 18 months salary plus 150% target bonus.
- Agreement supersedes prior Orexia Ltd employment contract from Jan 2019.

## SEC filing metadata
- accession: 0001193125-26-004896
- form_type: 8-K/A
- ticker: CNTA
- cik: 0001847903
- company_name: Centessa Pharmaceuticals plc
- filed_at: 2026-01-07T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1847903/000119312526004896/0001193125-26-004896-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1847903/000119312526004896/d51805d8ka.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-004896
- JSON: https://secwatch.observer/filing/0001193125-26-004896.json
- Plain text: https://secwatch.observer/filing/0001193125-26-004896.txt

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