Series B Purchase Agreement

Series B Purchase Agreement. Shall mean that certain Series B Convertible Preferred Stock Purchase Agreement dated January 22, 2001 by and among the Company and the Series B Investors.

Series B Purchase Agreement. Means the Series B Preferred Stock and Warrant Purchase Agreement dated as of May 19, 1997, as amended, among the Company, CRL and Austin Ventures V, providing, among other things, for the purchase and sale of Series B Preferred Stock and the Preferred Warrants.

Series B Purchase Agreement. Has the meaning set forth in the third recital above.

Series B Purchase Agreement. Has the meaning set forth in the fourth recital above.

Series B Purchase Agreement. Shall mean that certain Series B Preferred Stock Purchase Agreement, dated as of July 9, 2003, by and between the Company and certain of the Investors.

Series B Purchase Agreement. Means that certain Series B Preferred Stock Purchase Agreement by and among the Company and the investors party thereto, dated as of April 27, 2010.

Series B Purchase Agreement. Means that certain Series B Preferred Stock Purchase Agreement, dated October 14, 2004, as amended, between the Company and the several purchasers named in schedule of purchasers attached thereto.

Series B Purchase Agreement. That certain Series B Preferred Stock Purchase Agreement, dated as of March 13, 2001, among the Company and the Series B Investing Stockholders, as amended by the Prior Agreement.

Series B Purchase Agreement. Has the meaning ascribed to it in the recitals hereto.

Series B Purchase Agreement. Has the meaning set forth in the Recitals.