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AI brief of an SEC Form 8-K · Ingevity (NGVT)

Ingevity CFO Mary Dean Hall to step down May 1, 2026; Phillip Platt named successor

Neutral Impact 4 of 5 leadership Written later

Ingevity announced that CFO Mary Dean Hall will leave her role effective May 1, 2026, and will advise the company for one year afterward. Phillip J. Platt, the current senior vice president of finance and chief accounting officer, will succeed her as CFO on the same date. The company also said Performance Chemicals president Richard White will depart on May 1, 2026, after moving to a special projects role on January 1, 2026. The filing contains no financial results, so the changes matter to shareholders mainly as a change in the finance leadership.

Key points

  • Mary Dean Hall's CFO role ends May 1, 2026; she will advise the company in an advisory capacity for one year.
  • Phillip J. Platt, age 44, who joined in 2015, is named SVP and CFO effective May 1, 2026. He is a certified public accountant.
  • Richard White, SVP and president of Performance Chemicals, moves to a special projects role January 1, 2026 and departs May 1, 2026.
  • Reid Clontz Jr. was appointed SVP, Operations, effective December 8, 2025.

The filing

CompanyIngevity (NGVT)
Form8-K, current report
Filed with the SECDec 8, 2025, 6:56 AM ET
Accession number0001493152-25-026514

Items reported: 5.02 Director / Officer Change7.01 Regulation FD Disclosure

Read the filing on SEC.gov ↗

Written by AI (Anthropic Claude, claude-haiku-5-5) on Nov 8, 2026, 1:55 AM ET, from the text of the filing and its press-release exhibits only. Written later: this filing was briefed after the fact, when past filings were added to the site, so the brief may be read with hindsight; the filing itself is the record of what was known on December 08, 2025.

Briefs are written by AI from the filing text (each brief's own page names the model) and can contain mistakes — open the filing before acting on anything. Impact (1-5) and tone are the model's reading of the filing for shareholders, not a price forecast. Not investment advice.