---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-22-153111"
form_type: "8-K"
ticker: "AVTR"
cik: "0001722482"
company_name: "Avantor, Inc."
filed_at: "2022-05-17T23:59:59+00:00"
generated_at: "2026-06-25T12:16:58.073633+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Avantor converts all Series A Preferred Stock to common; preferred delisted

## Summary
- All 6.250% Series A Mandatory Convertible Preferred Stock automatically converted to common stock on May 16, 2022.
- Conversion rate of 3.0395 common shares per preferred share; cash paid for fractional shares.
- No shares of Preferred Stock remain outstanding after conversion.
- Company requested NYSE to delist preferred stock and will file Form 15 to suspend reporting obligations.
- Certificate of Elimination filed to remove preferred stock terms from corporate charter.

## SEC filing metadata
- accession: 0001193125-22-153111
- form_type: 8-K
- ticker: AVTR
- cik: 0001722482
- company_name: Avantor, Inc.
- filed_at: 2022-05-17T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 3.01, 5.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1722482/000119312522153111/0001193125-22-153111-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1722482/000119312522153111/d335130d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-22-153111
- JSON: https://secwatch.observer/filing/0001193125-22-153111.json
- Plain text: https://secwatch.observer/filing/0001193125-22-153111.txt

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