Solexa, which was acquired by Illumina in January 2007, develops systems for the comprehensive and economical analysis of individual genomes. The ability to read individual genomes quickly and economically will be a fundamental tool in the development of the biological and medical sciences in the twenty-first century. Solexa's goal was to reduce the cost of human resequencing to a few thousand dollars and achieve the so-called '$1,000 genome' for use in a wide range of applications from basic research through clinical diagnostics.

Amadeus was involved with Solexa since the Series 'A' financing round in 2001 and was very active in working to develop the business. Following completion of the Solexa acquisition by Illumina, Amadeus held Illumina common stock.