---
schema_version: "secwatch.filing_event.v1"
accession: "0001494650-24-000137"
form_type: "8-K"
ticker: null
cik: "0001494650"
company_name: "OptiNose, Inc."
filed_at: "2024-09-25T23:59:59+00:00"
generated_at: "2026-05-31T01:46:58.813136+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# Director Catherine Owen resigns from OptiNose board to become CEO of Acadia Pharmaceuticals

## Summary
- Catherine Owen resigned from the OptiNose board effective September 24, 2024.
- Resignation was not due to any disagreement with the company on operations, policies, or practices.
- Owen has been appointed Chief Executive Officer of Acadia Pharmaceuticals (NASDAQ: ACAD).
- No successor was announced; board size is reduced accordingly.
- OptiNose thanked Owen for her service and contributions.

## SEC filing metadata
- accession: 0001494650-24-000137
- form_type: 8-K
- cik: 0001494650
- company_name: OptiNose, Inc.
- filed_at: 2024-09-25T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1494650/000149465024000137/0001494650-24-000137-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1494650/000149465024000137/optn-20240924.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001494650-24-000137
- JSON: https://secwatch.observer/filing/0001494650-24-000137.json
- Plain text: https://secwatch.observer/filing/0001494650-24-000137.txt

## Key facts
- Executive change
  Catherine Owen resigned as Director at OptiNose, Inc..
  - Action: resigned
  - Role: Director
  source text: Ms. Catherine Owen resigned from the Board of Directors of OptiNose, Inc. (the "Company") on September 24, 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1494650/000149465024000137/0001494650-24-000137-index.htm

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