---
schema_version: "secwatch.filing_event.v1"
accession: "0001847903-22-000042"
form_type: "8-K"
ticker: "CNTA"
cik: "0001847903"
company_name: "Centessa Pharmaceuticals plc"
filed_at: "2022-07-08T23:59:59+00:00"
generated_at: "2026-06-24T18:41:13.460701+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.45
calibrated_materiality_score: 0.45
confidence: "high"
source: SEC EDGAR
---

# Centessa CAO resigns; CFO to add principal accounting officer role; RSU retention grants approved

## Summary
- Marella Thorell resigns as Chief Accounting Officer effective July 31, 2022, to pursue another opportunity; no disagreement with the company.
- CFO Gregory Weinhoff will assume principal accounting officer duties effective July 31, in addition to his CFO role.
- Board approved RSU retention grants: CEO Saurabh Saha 750,000 shares, CFO Weinhoff 230,000, EVP Yver 100,000; vest quarterly over 10 quarters starting Sept 30, 2022.

## SEC filing metadata
- accession: 0001847903-22-000042
- form_type: 8-K
- ticker: CNTA
- cik: 0001847903
- company_name: Centessa Pharmaceuticals plc
- filed_at: 2022-07-08T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.45
- calibrated_materiality_score: 0.45
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1847903/000184790322000042/0001847903-22-000042-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1847903/000184790322000042/cnta-20220701.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001847903-22-000042
- JSON: https://secwatch.observer/filing/0001847903-22-000042.json
- Plain text: https://secwatch.observer/filing/0001847903-22-000042.txt

## Key facts
- Executive change
  Gregory Weinhoff changed role as Chief Financial Officer at Centessa Pharmaceuticals plc.
  - Action: assumed duties of principal accounting officer
  - Role: Chief Financial Officer
  source text: Effective as of July 31, 2022, Gregory Weinhoff, M.D., M.B.A., the Company’s Chief Financial Officer, will assume the duties and responsibilities of the Company’s principal accounting officer, in addition to the Company’s principal financial officer.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1847903/000184790322000042/0001847903-22-000042-index.htm
- Executive change
  Marella Thorell resigned as Chief Accounting Officer at Centessa Pharmaceuticals plc.
  - Action: resigned
  - Role: Chief Accounting Officer
  source text: On July 1, 2022, Marella Thorell notified Centessa Pharmaceuticals plc (the “Company”) of her decision to resign her position as the Company’s Chief Accounting Officer, and its principal accounting officer, effective as of July 31, 2022 to pursue another professional opportunity.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1847903/000184790322000042/0001847903-22-000042-index.htm

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