AI English summary of an SEC filing — figures as filed

TransDigm said Kevin M. Stein notified the board on May 6, 2025 that he will retire as President and Chief Executive Officer, effective September 30, 2025. The company said his tenure with the company spans nearly 11 years.

8-KDeparture or Appointment of Directors or Certain OfficersFiled May 6, 2025Period of report May 6, 2025Summary published (UTC) Oct 17, 2026

Key points

AI summary

TransDigm said Kevin M. Stein notified the board on May 6, 2025 that he will retire as President and Chief Executive Officer, effective September 30, 2025. The company said his tenure with the company spans nearly 11 years.
The company said Michael J. Lisman, 42, will succeed Kevin M. Stein as President and Chief Executive Officer. Lisman has served as Co-Chief Operating Officer since May 2023.
The company said Lisman served as Chief Financial Officer from July 2018 to May 2023 and as Executive Vice President from January 2022 to May 2023. Before joining the company, he worked at Warburg Pincus in its New York and London offices, the company said.
TransDigm said Stein will continue as an advisor to help with the transition through March 31, 2026, and will remain on the Board of Directors.

Summary

AI-written

Analysis scope · Filing body and confirmed press-release exhibitWe analyzed the filing body and confirmed exhibits. This is not a review of other exhibits, investor presentations or the full earnings call.

Kevin M. Stein Retirement Notice

TransDigm said Kevin M. Stein notified the board on May 6, 2025 that he will retire as President and Chief Executive Officer, effective September 30, 2025. The company said his tenure with the company spans nearly 11 years.

Source · Based on the filing body and exhibits

Michael J. Lisman Named Successor

The company said Michael J. Lisman, 42, will succeed Kevin M. Stein as President and Chief Executive Officer. Lisman has served as Co-Chief Operating Officer since May 2023.

Source · Based on the filing body and exhibits

Lisman's Career

The company said Lisman served as Chief Financial Officer from July 2018 to May 2023 and as Executive Vice President from January 2022 to May 2023. Before joining the company, he worked at Warburg Pincus in its New York and London offices, the company said.

Source · Based on the filing body and exhibits

Stein's Post-Retirement Role

TransDigm said Stein will continue as an advisor to help with the transition through March 31, 2026, and will remain on the Board of Directors.

Source · Based on the filing body and exhibits

AI summarized the filing and translated the summary into English; it may differ from the original. For reference only, not investment advice. AI translated the published Korean report into English. Figures are copied as filed, not recalculated.

Original filing

The filing as submitted to SEC EDGAR. You can check the figures and statements of this summary against it.

View the original filing on SEC EDGAR ↗

Unauthorized scraping, data storage and database creation prohibited

Without prior written consent, you must not crawl or scrape data compiled and organized by Chickstock or its analysis and summaries, or collect them repeatedly or in bulk for storage, ingestion or database creation. Repurposing, redistribution, sale and use to build other services are also prohibited.

Unauthorized use may result in access restrictions, demands to stop infringement and delete copies, and claims for damages. Violations of applicable law may also give rise to criminal liability.

Uses permitted by law, the Terms of Service or a separate agreement remain subject to their respective scope. Rights in individual source materials, including original filings, remain with their respective rights holders.