---
schema_version: "secwatch.filing_event.v1"
accession: "0001816590-25-000141"
form_type: "8-K"
ticker: "CMPS"
cik: "0001816590"
company_name: "COMPASS Pathways plc"
filed_at: "2025-10-29T23:59:59+00:00"
generated_at: "2026-05-17T01:42:20.690964+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Compass Pathways appoints Dr. Jeffrey Jonas to board; Thomas Lönngren to retire Dec 31, 2025

## Summary
- Dr. Jonas appointed Board effective Oct 29, 2025; Class II director, audit and scientific committees.
- Initial option for 52,000 ordinary shares vesting over 3 yrs; annual retainers $40k board, $10k audit, $6k scientific.
- Thomas Lönngren to retire Dec 31, 2025 after 6+ years; no disagreements.
- Dr. Jonas brings 30+ yrs neuroscience leadership; former CEO of Sage Therapeutics, partner at Cure Ventures.
- Changes align with advancing COMP360 program and potential commercialization.

## SEC filing metadata
- accession: 0001816590-25-000141
- form_type: 8-K
- ticker: CMPS
- cik: 0001816590
- company_name: COMPASS Pathways plc
- filed_at: 2025-10-29T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1816590/000181659025000141/0001816590-25-000141-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1816590/000181659025000141/cmps-20251026.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001816590-25-000141
- JSON: https://secwatch.observer/filing/0001816590-25-000141.json
- Plain text: https://secwatch.observer/filing/0001816590-25-000141.txt

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