---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-058953"
form_type: "8-K"
ticker: "OM"
cik: "0001484612"
company_name: "Outset Medical, Inc."
filed_at: "2025-03-20T23:59:59+00:00"
generated_at: "2026-05-24T10:05:59.197353+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Outset Medical effects 1-for-15 reverse stock split effective March 20, 2025

## Summary
- Reverse stock split at ratio of 1-for-15, effective 12:01 a.m. ET on March 20, 2025.
- Common stock begins trading on split-adjusted basis under new CUSIP 690145206.
- No fractional shares issued; cash-in-lieu paid based on March 19 closing price.
- Stockholders approved split ratio range of 1:10 to 1:15 at special meeting March 5, 2025.

## SEC filing metadata
- accession: 0001193125-25-058953
- form_type: 8-K
- ticker: OM
- cik: 0001484612
- company_name: Outset Medical, Inc.
- filed_at: 2025-03-20T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 3.03, 5.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1484612/000119312525058953/0001193125-25-058953-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1484612/000119312525058953/d853153d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-058953
- JSON: https://secwatch.observer/filing/0001193125-25-058953.json
- Plain text: https://secwatch.observer/filing/0001193125-25-058953.txt

## Key facts
- Governance Changes
  Outset Medical, Inc.: Outset Medical, Inc. filed an amendment to its Amended and Restated Certificate of Incorporation to effect a one-for-fifteen reverse stock split of its common stock, effective March 20, 2025 (effective 2025-03-20).
  - Change: charter amendment
  - Effective: 2025-03-20
  source text: On March 20, 2025, Outset Medical, Inc., a Delaware corporation (the “ Company ”), effected a one-for-fifteen reverse stock split (“ Reverse Stock Split ”) of the Company’s common stock, par value $0.001 (the “ Common Stock ”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1484612/000119312525058953/0001193125-25-058953-index.htm

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