{"schema_version":"secwatch.filing_event.v1","accession":"0001260221-25-000084","form_type":"8-K","ticker":"TDG","cik":"0001260221","company_name":"TransDigm Group INC","filed_at":"2025-12-31T23:59:59+00:00","discovered_at":"2026-05-14T18:02:38.996293+00:00","generated_at":"2026-05-16T11:53:14.178247+00:00","sec_items":["8.01","9.01"],"event_type":"m_and_a","sentiment":"positive","materiality_score":0.8,"calibrated_materiality_score":0.8,"confidence":"high","headline":"TransDigm acquires Stellant Systems for ~$960M in cash","bullets":["TransDigm (NYSE:TDG) agrees to buy Stellant Systems from Arlington Capital Partners for approx. $960M cash, including tax benefits.","Stellant is a designer/manufacturer of high-power electronic components for aerospace/defense, with ~$300M expected 2025 revenue.","About 50% of Stellant revenue is aftermarket; nearly all from proprietary products, adding new products/services to TransDigm portfolio.","Stellant employs ~950 people across four U.S. facilities: Torrance, Williamsport, Melville, and Topsfield.","Transaction is subject to U.S. regulatory approvals and customary closing conditions."],"urls":{"canonical":"https://secwatch.observer/filing/0001260221-25-000084","json":"https://secwatch.observer/filing/0001260221-25-000084.json","markdown":"https://secwatch.observer/filing/0001260221-25-000084.md","text":"https://secwatch.observer/filing/0001260221-25-000084.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1260221/000126022125000084/0001260221-25-000084-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1260221/000126022125000084/tdg-20251231.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T11:53:14.178247+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}