---
schema_version: "secwatch.filing_event.v1"
accession: "0001494650-24-000177"
form_type: "8-K"
ticker: null
cik: "0001494650"
company_name: "OptiNose, Inc."
filed_at: "2024-12-30T23:59:59+00:00"
generated_at: "2026-05-28T22:42:28.500913+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# OptiNose completes 1-for-15 reverse stock split effective December 30, 2024

## Summary
- Reverse stock split at 1:15 ratio effective 8:00 a.m. ET on December 30, 2024; split-adjusted trading starts December 31, 2024.
- Outstanding shares reduced from 150,829,507 to approximately 10,055,300 shares.
- No fractional shares issued; stockholders receive cash in lieu based on closing price on effective date.
- Authorized shares and par value of common and preferred stock unchanged.

## SEC filing metadata
- accession: 0001494650-24-000177
- form_type: 8-K
- cik: 0001494650
- company_name: OptiNose, Inc.
- filed_at: 2024-12-30T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 3.03, 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1494650/000149465024000177/0001494650-24-000177-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1494650/000149465024000177/optn-20241230.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001494650-24-000177
- JSON: https://secwatch.observer/filing/0001494650-24-000177.json
- Plain text: https://secwatch.observer/filing/0001494650-24-000177.txt

## Key facts
- Governance Changes
  OptiNose, Inc.: Filing of Certificate of Amendment to effect 1-for-15 reverse stock split of common stock (effective 2024-12-30).
  - Change: charter amendment
  - Effective: 2024-12-30
  source text: On December 30, 2024, OptiNose, Inc. (the “Company”) filed a Certificate of Amendment (the “Certificate of Amendment”) to the Company’s Fourth Amended and Restated Certificate of Incorporation (the “Certificate of Incorporation”) with the Delaware Secretary of State, to effect a 1-for-15 reverse stock split (the “reverse split”) of the Company’s issued and outstanding shares of common stock, par value $0.001 per share (the “Common Stock”), effective at 8:00 a.m. Eastern Standard Time on that date (the “Effective Date”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1494650/000149465024000177/0001494650-24-000177-index.htm

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