---
schema_version: "secwatch.filing_event.v1"
accession: "0001493152-25-026514"
form_type: "8-K"
ticker: "NGVT"
cik: "0001653477"
company_name: "Ingevity Corp"
filed_at: "2025-12-08T23:59:59+00:00"
generated_at: "2026-05-16T13:58:48.148039+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Ingevity CFO Hall to step down May 1, 2026; Platt named successor

## Summary
- Mary Dean Hall will transition from CFO to advisor role effective May 1, 2026.
- Phillip J. Platt, currently SVP Finance & CAO, appointed CFO and executive leadership team member effective same date.
- Richard White, President of Performance Chemicals, will shift to special projects on Jan 1, 2026 and depart May 1, 2026.
- Reid Clontz appointed SVP, Operations (effective Dec 8, 2025), adding supply chain, procurement, safety.
- Changes announced as Ingevity completes strategic portfolio review.

## SEC filing metadata
- accession: 0001493152-25-026514
- form_type: 8-K
- ticker: NGVT
- cik: 0001653477
- company_name: Ingevity Corp
- filed_at: 2025-12-08T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1653477/000149315225026514/0001493152-25-026514-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1653477/000149315225026514/form8-k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001493152-25-026514
- JSON: https://secwatch.observer/filing/0001493152-25-026514.json
- Plain text: https://secwatch.observer/filing/0001493152-25-026514.txt

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