Nektar Therapeutics is a biopharmaceutical company. It has wholly-owned research and development pipeline of investigational medicines in oncology, immunology, and virology as well as a portfolio of approved partnered medicines. In oncology, The company is focused on activating the immune system natural tumor-fighting mechanisms, and it will be studying several immuno-oncology drug candidates in the clinic for a variety of cancer indications. In immunology, it is focused on addressing imbalances in the immune system to restore the body's self-tolerance mechanisms and achieve immune homeostasis. In virology, the company believes selective immuno-modulators can be useful in addressing viral infections in people. The group derives revenue from the United States and the Rest of the World.