---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-165684"
form_type: "8-K"
ticker: "KRRO"
cik: "0001703647"
company_name: "Korro Bio, Inc."
filed_at: "2024-06-21T23:59:59+00:00"
generated_at: "2026-06-01T02:53:14.573731+00:00"
event_type: "leadership"
sentiment: "negative"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Korro Bio Chief Scientific Officer Steve Colletti to resign effective August 2, 2024

## Summary
- Steve Colletti, Ph.D., notified Korro Bio of his resignation as Chief Scientific Officer on June 17, 2024.
- His resignation is effective August 2, 2024.
- Korro Bio is a biotechnology company focused on RNA editing, traded on Nasdaq under ticker KRRO.

## SEC filing metadata
- accession: 0001193125-24-165684
- form_type: 8-K
- ticker: KRRO
- cik: 0001703647
- company_name: Korro Bio, Inc.
- filed_at: 2024-06-21T23:59:59+00:00
- event_type: leadership
- sentiment: negative
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1703647/000119312524165684/0001193125-24-165684-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1703647/000119312524165684/d847854d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-165684
- JSON: https://secwatch.observer/filing/0001193125-24-165684.json
- Plain text: https://secwatch.observer/filing/0001193125-24-165684.txt

## Key facts
- Executive change
  Steve Colletti resigned as Chief Scientific Officer at Korro Bio, Inc..
  - Action: resigned
  - Role: Chief Scientific Officer
  source text: On June 17, 2024, Steve Colletti, Ph.D., notified Korro Bio, Inc. of his intent to resign as its Chief Scientific Officer effective August 2, 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1703647/000119312524165684/0001193125-24-165684-index.htm

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