WILMINGTON, Mass.--(BUSINESS WIRE)--June 5, 2006--Charles River Laboratories International, Inc. (NYSE: CRL - News), today announced its intention to offer, subject to market and other conditions, $300 million principal amount of Convertible Senior Notes due 2013 in a private offering to qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended. In certain circumstances, the notes may be convertible into cash up to the principal amount and any conversion value above the principal amount may be convertible into cash, shares of Charles River common stock or a combination of cash and Charles River common stock, at Charles River’s option. The interest rate, conversion price and other terms of the notes will be determined by negotiations between Charles River and the initial purchasers of the notes. Charles River expects to grant the initial purchasers a 13-day option to purchase up to $50 million principal amount of additional notes to cover over-allotments.
