TransDigm Group has agreed to acquire Stellant Systems for $960 million in an all-cash transaction, expected to close in 2026 pending U.S. regulatory approvals and customary closing conditions. Stellant, based in Torrance, California, specializes in the design and production of high-power electronic components for defense, space and aerospace platforms.

Stellant generated approximately $300 million in revenue in 2025, with nearly 50% derived from proprietary aftermarket sales. This aligns with TransDigm's focus on recurring demand businesses, as its strategy emphasizes pricing power and long-lived platform attachment for enhanced aftermarket margin profiles.

As of September 2025, TransDigm held $2.808 billion in cash and cash equivalents. The strength of its balance sheet underpins its ability to execute large-scale, all-cash acquisitions and absorb integration costs while maintaining dividend and share repurchase programs.

TransDigm CEO Mike Lisman noted that Stellant’s engineered product portfolio complements TransDigm’s existing proprietary components business and supports long-term value creation. Stellant CEO Keith Barclay highlighted operational improvements and a robust pipeline that have positioned the company for further growth under TransDigm’s ownership.