secwatch.observer — SEC 8-K summary
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Issuer:     TransDigm Group INC (TDG)
CIK:        0001260221
Form:       8-K
Filed at:   2025-10-01T23:59:59+00:00
Accession:  0001260221-25-000061
Event type: leadership
Sentiment:  neutral
Materiality: 0.55
Item codes: 5.02, 7.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Mike Lisman becomes TransDigm CEO effective Oct 1, 2025; Kevin Stein retires
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- Mike Lisman appointed President and CEO, succeeding Kevin Stein who retired Sept 30, 2025.
- Lisman previously served as Co-COO since May 2023; prior roles include CFO and M&A lead.
- Second Amended and Restated Employment Agreement with Lisman executed Oct 1, 2025.
- Stein remains as advisor through March 31, 2026 and continues as Board member.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1260221/000126022125000061/0001260221-25-000061-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1260221/000126022125000061/tdg-20251001.htm
  HTML page:      https://secwatch.observer/filing/0001260221-25-000061

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