SAN FRANCISCO (MarketWatch) -- Corning Inc. (GLW) late Wednesday announced a public offering of 20 million shares for proceeds of about $325 million from its existing $5 billion universal shelf registration. Goldman, Sachs & Co. is the sole underwriter for the offering. Proceeds will be used to reduce debt by repurchasing the remaining outstanding zero-coupon convertible debentures due Nov. 8, 2015, in addition to general corporate purposes.

http://bigcharts.marketwatch.com/intchart/frames/frames.asp?symb=glw&time=12&freq=2