Qiagen N.V.. Replay the stock market charts of QGEN day by day back to 2003. Open long and short positions without spending any money. Qiagen NV provides sample and assay technologies to extract, purify, amplify, and interpret DNA (Deoxyribonucleic acid), RNA (Ribonucleic acid), and proteins. It also offers kits, assays, related automated systems and bioinformatics solutions.