---
schema_version: "secwatch.filing_event.v1"
accession: "0001822479-23-000037"
form_type: "8-K"
ticker: "SHC"
cik: "0001822479"
company_name: "Sotera Health Co"
filed_at: "2023-06-01T23:59:59+00:00"
generated_at: "2026-06-14T09:40:14.084070+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.15
confidence: "high"
source: SEC EDGAR
---

# Sotera Health shareholders elect three Class III directors, approve say-on-pay and auditor ratification

## Summary
- All three director nominees elected: Sean Cunningham, Robert Knauss, Vincent Petrella each received majority votes.
- Advisory say-on-pay resolution approved with 229,154,947 For vs 38,382,040 Against, plus abstentions.
- Ratification of Ernst & Young as auditor for FY2023 approved overwhelmingly: 269,320,023 For, 504,464 Against.
- Over 95% of outstanding shares voted, constituting quorum.

## SEC filing metadata
- accession: 0001822479-23-000037
- form_type: 8-K
- ticker: SHC
- cik: 0001822479
- company_name: Sotera Health Co
- filed_at: 2023-06-01T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.15
- confidence: high
- sec_items: 5.07
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1822479/000182247923000037/0001822479-23-000037-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1822479/000182247923000037/shc-20230525.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001822479-23-000037
- JSON: https://secwatch.observer/filing/0001822479-23-000037.json
- Plain text: https://secwatch.observer/filing/0001822479-23-000037.txt

## Key facts
- Shareholder Votes
  Sotera Health Co shareholders approved Election of three Class III directors to serve a three-year term until the 2026 annual meeting. at the 2023-05-25 meeting.
  - Proposal: director election
  - Outcome: passed
  - Meeting: 2023-05-25
  source text: Nominee For Against Abstain Broker Non-Vote Sean L. Cunningham 241,825,403 25,714,700 109,783 2,275,639 Robert B. Knauss 244,567,719 22,972,035 110,132 2,275,639 Vincent K. Petrella 264,410,491 3,136,356 103,039 2,275,639
  evidence_url: https://www.sec.gov/Archives/edgar/data/1822479/000182247923000037/0001822479-23-000037-index.htm
- Shareholder Votes
  Sotera Health Co shareholders approved Ratification of appointment of Ernst & Young LLP as independent registered public accounting firm for fiscal year ending December 31, 2023. at the 2023-05-25 meeting.
  - Proposal: auditor ratification
  - Outcome: passed
  - Meeting: 2023-05-25
  source text: For Against Abstain 269,320,023 504,464 101,038
  evidence_url: https://www.sec.gov/Archives/edgar/data/1822479/000182247923000037/0001822479-23-000037-index.htm
- Shareholder Votes
  Sotera Health Co shareholders approved Advisory approval of named executive officer compensation. at the 2023-05-25 meeting.
  - Proposal: say on pay
  - Outcome: passed
  - Meeting: 2023-05-25
  source text: For Against Abstain Broker Non-Vote 229,154,947 38,382,040 112,899 2,275,639
  evidence_url: https://www.sec.gov/Archives/edgar/data/1822479/000182247923000037/0001822479-23-000037-index.htm

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