---
schema_version: "secwatch.filing_event.v1"
accession: "0001816590-25-000042"
form_type: "8-K"
ticker: "CMPS"
cik: "0001816590"
company_name: "COMPASS Pathways plc"
filed_at: "2025-04-16T23:59:59+00:00"
generated_at: "2026-05-23T13:37:49.769197+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Compass Pathways replaces PwC UK with PwC US as auditor; NEOs get change-in-control vesting acceleration

## Summary
- PwC UK resigned at company's request; PwC US appointed independent auditor for FY2025 effective after Q1 2025 review.
- No disagreements or reportable events with PwC UK for fiscal years 2024 and 2023.
- Change driven by Compass Pathways' status as US domestic reporting company and growing US operations.
- Employment agreements amended: full accelerated vesting of time-based equity awards if NEO terminated or resigns for good reason within 12 months post-change in control.

## SEC filing metadata
- accession: 0001816590-25-000042
- form_type: 8-K
- ticker: CMPS
- cik: 0001816590
- company_name: COMPASS Pathways plc
- filed_at: 2025-04-16T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 4.01, 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1816590/000181659025000042/0001816590-25-000042-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1816590/000181659025000042/cmps-20250414.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001816590-25-000042
- JSON: https://secwatch.observer/filing/0001816590-25-000042.json
- Plain text: https://secwatch.observer/filing/0001816590-25-000042.txt

## Key facts
- Auditor Changes
  COMPASS Pathways plc engaged PricewaterhouseCoopers LLP, United States as its auditor.
  - Action: engagement
  - Auditor: PricewaterhouseCoopers LLP, United States
  source text: appointed PricewaterhouseCoopers LLP, United States (“ PwC US ”) as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2025
  evidence_url: https://www.sec.gov/Archives/edgar/data/1816590/000181659025000042/0001816590-25-000042-index.htm
- Auditor Changes
  PricewaterhouseCoopers LLP, United Kingdom resigned as auditor of COMPASS Pathways plc.
  - Action: resignation
  - Auditor: PricewaterhouseCoopers LLP, United Kingdom
  - Successor: PricewaterhouseCoopers LLP, United States
  source text: accepted notice of the resignation of PricewaterhouseCoopers LLP, United Kingdom (“ PwC UK ”) as the Company’s independent registered public accounting firm and (ii) appointed PricewaterhouseCoopers LLP, United States (“ PwC US ”) as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2025
  evidence_url: https://www.sec.gov/Archives/edgar/data/1816590/000181659025000042/0001816590-25-000042-index.htm

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