TriMas Corp has agreed to sell its aerospace division to an affiliate of investment firm Tinicum for $1.45bn in cash, as the US packaging manufacturer responds to activist pressure from hedge fund Barington Capital to streamline operations, according to a report by Reuters.

The deal, which is expected to close by Q1 2026, will also see Blackstone-managed funds take a minority stake in the aerospace business. The unit, which supplies fasteners to clients including Airbus, currently accounts for about 38% of TriMas’ net sales.

Barington Capital, which holds a 1.5% stake, has long argued that TriMas’ mix of packaging, aerospace, and specialty products created a “mini-conglomerate discount,” urging management to focus on higher-margin core operations.

The move follows the earlier divestiture of Arrow Engine, as TriMas pivots fully toward packaging and specialty manufacturing. PJT Partners and BofA Securities advised on the sale