---
schema_version: "secwatch.filing_event.v1"
accession: "0001101302-21-000085"
form_type: "8-K"
ticker: "ENTG"
cik: "0001101302"
company_name: "ENTEGRIS INC"
filed_at: "2021-12-22T23:59:59+00:00"
generated_at: "2026-06-27T22:49:42.417457+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# Director R. Nicholas Burns resigns from Entegris board to become U.S. ambassador to China

## Summary
- R. Nicholas Burns resigned from Board on Dec 18, effective Dec 21, 2021.
- Resignation due to confirmation as U.S. ambassador to China.
- Board size to be reduced from nine to eight directors.

## SEC filing metadata
- accession: 0001101302-21-000085
- form_type: 8-K
- ticker: ENTG
- cik: 0001101302
- company_name: ENTEGRIS INC
- filed_at: 2021-12-22T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1101302/000110130221000085/0001101302-21-000085-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1101302/000110130221000085/entg-20211218.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001101302-21-000085
- JSON: https://secwatch.observer/filing/0001101302-21-000085.json
- Plain text: https://secwatch.observer/filing/0001101302-21-000085.txt

## Key facts
- Executive change
  R. Nicholas Burns resigned as Director at ENTEGRIS INC.
  - Action: resigned
  - Role: Director
  source text: On December 18, 2021, R. Nicholas Burns notified Entegris, Inc. (the "Company") that, effective as of December 21, 2021, he was resigning from the Board of Directors (the "Board") of the Company in connection with his confirmation as United States ambassador to China.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1101302/000110130221000085/0001101302-21-000085-index.htm

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