Hart-Scott-Rodino Act waiting period has expired Company to be rebranded as Expand Energy and trade on NASDAQ under "EXE" ticker symbol OKLAHOMA CITY and SPRING, Texas, Sept. 26, 2024 /PRNewswire/ -- Chesapeake Energy Corporation (NASDAQ: CHK) and Southwestern Energy Company (NYSE: SWN) today announced the waiting period in connection with the companies' pending combination under the Hart-Scott-Rodino Antitrust Improvements Act of 1976 ("HSR Act") has expired. The companies expect the merger to close in the ...