---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-008060"
form_type: "8-K"
ticker: "OUST"
cik: "0001816581"
company_name: "Ouster, Inc."
filed_at: "2025-01-17T23:59:59+00:00"
generated_at: "2026-05-27T23:23:48.122568+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Ouster CFO resigns; interim CFO appointed; Q4 revenue guidance reaffirmed at $29M-$31M

## Summary
- CFO Mark Weinswig resigns effective Jan 31, 2025 to pursue new opportunity; not due to disagreement.
- Board appoints VP Strategic Finance & Treasurer Chen Geng as Interim CFO, effective Jan 31.
- Q4 2024 revenue reaffirmed at $29M-$31M, previously guided on Nov 7, 2024, based on preliminary results.
- Board has begun search for permanent CFO; Geng has been with Ouster since 2021.

## SEC filing metadata
- accession: 0001193125-25-008060
- form_type: 8-K
- ticker: OUST
- cik: 0001816581
- company_name: Ouster, Inc.
- filed_at: 2025-01-17T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1816581/000119312525008060/0001193125-25-008060-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1816581/000119312525008060/d926317d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-008060
- JSON: https://secwatch.observer/filing/0001193125-25-008060.json
- Plain text: https://secwatch.observer/filing/0001193125-25-008060.txt

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