Kirkland & Ellis had a busy week. The law firm was the lead on three announced mega deals in the last week, including representing pipeline operator Energy Transfer in a $7.1 billion acquisition, BAE System in its purchase of Ball Aerospace for $5.6 billion, and Bain Capital in taking private a data center solution provider for $3.16 billion.

Meanwhile, law firms like Kirkland that represent many private equity and hedge fund clients are gearing up for large regulatory changes soon.