Yesterday, Senior Biotechnology Analyst John Sullivan initiated coverage of Sigma-Aldrich Corporation (NASDAQ: SIAL) with a Market Perform rating.

About Sigma-Aldrich Corporation

Sigma-Aldrich Corporation (NASDAQ: SIAL) is a leading Life Science and Technology company. Its biochemical and organic chemical products and kits are used in scientific and genomic research, biotechnology, pharmaceutical development, the diagnosis of disease and chemical manufacturing. Sigma-Aldrich is based in St. Louis, Missouri.

About Leerink Swann & Company

Leerink Swann & Company is an investment banking firm that provides healthcare equity research, corporate finance, and asset management services for institutional and high-net-worth clients. Leerink Swann & Company was voted the Best Firm in Biotechnology, Health Care Facilities, Medical Supplies and Devices, Pharmaceuticals/Major and Pharmaceuticals/Specialty in the December 2003 "Institutional Investor" poll ranking the best boutique and regional firms by sector. Through its consulting affiliate, MEDACorp, Leerink Swann & Company provides biomedical-consulting services to Life Sciences companies and to the institutional investment community. MEDACorp is comprised of 11,000 consultants who are practicing physicians, surgeons, and biomedical professionals. Leerink Swann & Company is a member NASD/SIPC.