Sidley Austin LLP is a global law firm founded in 1866 and headquartered in Chicago, Illinois. It maintains approximately 2,300 lawyers in 21 offices across North America, Europe, Asia, and Australia, providing services in transactional, litigation, regulatory, restructuring, and investigation matters.
The firm advises clients in sectors including chemicals on environmental, health, and safety law, chemical regulation, toxic torts, and product stewardship.
Also known as Sidley Austin Brown & Wood LLP.
All-stock merger creates an integrated North American chemicals platform with vertical chlorine/caustic integration, ~$12.5B pro forma revenue and $400M+ identified synergies.
Includes two late-stage ROS1 and ALK NSCLC inhibitors under FDA review for 2026 decisions, plus a HER2 candidate; expected to be accretive to profit from 2027 and funded by debt and cash.
