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AI brief of an SEC Form 8-K · EnerSys (ENS)

EnerSys CTO Joern Tinnemeyer leaves; Mark Matthews named acting CTO

Neutral Impact 3 of 5 leadership Written later

On March 26, 2025, EnerSys separated employment with Joern Tinnemeyer, its Senior Vice President and Chief Technology Officer. The same day, it appointed Mark Matthews, its President, Specialty Global, as Acting Chief Technology Officer while he keeps his other responsibilities. The filing does not give a reason for the departure, name a permanent successor, or include any financial figures.

Key points

  • Joern Tinnemeyer, Senior Vice President and Chief Technology Officer, separated employment on March 26, 2025
  • Mark Matthews, President, Specialty Global, appointed Acting Chief Technology Officer on March 26, 2025, in addition to his other responsibilities
  • The filing gives no reason for the departure and names no permanent replacement
  • 8-K filed March 28, 2025 and signed by CFO Andrea J. Funk

The filing

CompanyEnerSys (ENS)
Form8-K, current report
Filed with the SECMar 28, 2025, 4:16 PM ET
Accession number0001289308-25-000008

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

Read the filing on SEC.gov ↗

Written by AI on Nov 8, 2026, 1:05 AM ET, from this filing 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 March 28, 2025.

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