---
schema_version: "secwatch.filing_event.v1"
accession: "0001722482-24-000125"
form_type: "8-K"
ticker: "AVTR"
cik: "0001722482"
company_name: "Avantor, Inc."
filed_at: "2024-06-21T23:59:59+00:00"
generated_at: "2026-06-01T02:53:55.648374+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Avantor replaces Lab Solutions head; appoints Corey Walker as President

## Summary
- Randy Stone to depart as EVP Laboratory Solutions effective June 30, 2024; involuntary termination without cause.
- Corey Walker appointed President of Laboratory Solutions, reporting to CEO Michael Stubblefield, effective immediately.
- Walker previously served as EVP at Avantor from 2016-2020 and most recently CEO of ILC Dover.
- Company reaffirms fiscal year 2024 guidance as previously stated in Q1 earnings call.

## SEC filing metadata
- accession: 0001722482-24-000125
- form_type: 8-K
- ticker: AVTR
- cik: 0001722482
- company_name: Avantor, Inc.
- filed_at: 2024-06-21T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1722482/000172248224000125/0001722482-24-000125-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1722482/000172248224000125/avtr-20240621.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001722482-24-000125
- JSON: https://secwatch.observer/filing/0001722482-24-000125.json
- Plain text: https://secwatch.observer/filing/0001722482-24-000125.txt

## Key facts
- Executive change
  Randy Stone departed as Executive Vice President, Laboratory Solutions at Avantor, Inc..
  - Action: departed
  - Role: Executive Vice President, Laboratory Solutions
  source text: On June 21, 2024, Avantor, Inc. (the “Company”) announced that Randy Stone, who had served as the Executive Vice President, Laboratory Solutions, would be leaving the Company effective June 30, 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1722482/000172248224000125/0001722482-24-000125-index.htm

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