Three significant corporate transactions emerged this week, highlighting continued activity in the mergers and acquisitions market across multiple sectors.

Lazard announced its acquisition of private capital advisory group Campbell Lutyens in a deal valued at $575 million. The transaction expands Lazard's capabilities in private capital advisory services, adding Campbell Lutyens' expertise to its existing investment banking operations.

Separately, private equity firm KKR is exploring a potential $10 billion sale of its former Unilever spreads business. The business, which includes margarine and butter substitute brands, was previously acquired from the consumer goods giant and is now being evaluated for divestiture as KKR seeks to optimize its portfolio.

Meanwhile, activist investor Engine Capital is urging government contractor KBR to explore a sale of the company. Engine Capital's push comes as KBR is currently in the process of splitting its business operations. The activist investor believes that pursuing a sale would be more beneficial for shareholders than proceeding with the planned business separation.

The three deals span different industries and transaction types, from strategic acquisitions to potential divestitures and activist campaigns, reflecting the diverse nature of current corporate activity. Each transaction involves substantial valuations, indicating continued appetite for major deals despite broader economic uncertainties.