Edwards Group, which makes vacuum and abatement systems for semiconductor and other industries, raised $100 million on Thursday by offering 12.5 million ADSs at $8, below the revised range of $9 to $10. The company had previously filed a price range of $11 to $13. Edwards Group will list on the NASDAQ under the symbol EVAC. Barclays, Goldman and Deutsche Bank acted as lead managers on the deal.