---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-264167"
form_type: "8-K"
ticker: "NEU"
cik: "0001282637"
company_name: "NEWMARKET CORP"
filed_at: "2023-10-26T23:59:59+00:00"
generated_at: "2026-06-09T08:02:44.362987+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.25
confidence: "high"
source: SEC EDGAR
---

# NewMarket elects Lilo Simmons Ukrop to board effective Oct 26, 2023

## Summary
- Ukrop fills the vacancy left by Patrick D. Hanley's retirement on August 3, 2023.
- She will serve on the Nominating & Corporate Governance and Compensation committees.
- Ukrop holds a B.S. in Mechanical Engineering from Tulane and an MBA from UVA Darden.
- Her background includes roles at Exxon, Tredegar, and McIlhenny (Tabasco brand).
- She is expected to stand for election at the 2024 annual shareholder meeting.

## SEC filing metadata
- accession: 0001193125-23-264167
- form_type: 8-K
- ticker: NEU
- cik: 0001282637
- company_name: NEWMARKET CORP
- filed_at: 2023-10-26T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.25
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1282637/000119312523264167/0001193125-23-264167-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1282637/000119312523264167/d576200d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-264167
- JSON: https://secwatch.observer/filing/0001193125-23-264167.json
- Plain text: https://secwatch.observer/filing/0001193125-23-264167.txt

## Key facts
- Executive change
  Lilo Simmons Ukrop was elected as Director at NEWMARKET CORP.
  - Action: elected
  - Role: Director
  source text: On October 26, 2023, NewMarket Corporation (the “Company”) issued a press release announcing that its Board of Directors has elected Lilo Simmons Ukrop to the Board of Directors, effective as of October 26, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1282637/000119312523264167/0001193125-23-264167-index.htm

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