secwatch.observer — SEC 8-K summary
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Issuer:     TransDigm Group INC (TDG)
CIK:        0001260221
Form:       8-K
Filed at:   2025-05-06T23:59:59+00:00
Accession:  0001260221-25-000025
Event type: leadership
Sentiment:  neutral
Materiality: 0.60
Item codes: 5.02, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

TransDigm CEO Kevin Stein to retire Sept 30, 2025; COO Mike Lisman named successor
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- Kevin Stein retires as President & CEO effective Sept 30, 2025; will remain as advisor through March 2026 and continue on board.
- Mike Lisman, current Co-COO, appointed President & CEO; previously served as CFO and led M&A at TransDigm.
- Chairman cites planned succession following Stein's ~11-year tenure generating shareholder value.
- Lisman holds B.S. in aerospace engineering from Notre Dame and MBA from Harvard Business School.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1260221/000126022125000025/0001260221-25-000025-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1260221/000126022125000025/tdg-20250506.htm
  HTML page:      https://secwatch.observer/filing/0001260221-25-000025

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer