Tracy Raben

The Options Clearing Corp. provides equity derivatives clearing services. It provides central counterparty clearing and settlement services to stock exchanges and trading platforms for options, financial futures, security futures and securities lending transactions. The company was founded in 1973 and is headquartered in Chicago, IL.

RehabCare Group, Inc. engages in the provision of rehabilitation program management services. It operates through the following segments: Inpatient and Outpatient Hospital Rehabilitation Services; Contract Therapy Services, and Freestanding Rehabilitation Hospitals. The company was founded in 1982 and is headquartered in Louisville. KY.

Siemens Healthcare Diagnostics, Inc. engages in the vitro diagnostics. It provides healthcare professionals in hospital, reference, and physician office laboratories and point-of-care settings with the vital information required to accurately diagnose, treat, and monitor patients. The company is headquartered in Tarrytown, NY.

Prospira PainCare, Inc. provides multidisciplinary pain management services. It delivers treatment to restore the health and quality of life for those suffering from acute, chronic, or intractable pain. The company was founded in 2012 and is headquartered in Roswell, GA.