Ventana Medical Systems


Ventana Medical Systems, Inc.
FounderThomas Grogan, M.D.
Area served
Key people
Thomas Grogan, M.D (Founder)
Ann Costello (President)
ProductsMedical equipment
Assay development
ServicesClinical laboratory
Number of employees
ParentF. Hoffmann-La Roche Ltd.
DivisionsRoche Diagnostics

Ventana Medical Systems, Inc. was a medical device company that develops, manufactures, and markets instrument reagent systems that automate tissue and slide staining in anatomic pathology laboratories. These products assist in the diagnosis and treatment of cancer and infectious diseases.[1]

The company is now part of the Roche Diagnostics Division and has been renamed Roche Tissues Diagnostics. [2]

Company history

Pathologist and University of Arizona professor Thomas Grogan, M.D., founded Ventana in 1985. The company launched its first instrument reagent system in 1991, and held an initial public offering (IPO) in 1996, trading under the symbol VMSI on the NASDAQ stock exchange.[3]

In 2007, Ventana acquired Spring BioScience Corp, a developer and supplier of monoclonal antibodies.[4] That same year, Ventana rejected a hostile takeover bid from Roche Holding AG for $75 a share.[5] In February 2008, Roche acquired Ventana with a cash offer of $89.50 per share ($3.4 billion).[5]

Key people


Ventana manufactures products within eight areas:


  1. ^ "Ventana Medical Systems Inc". Bloomberg. Retrieved 2012-11-09.
  2. ^ "Roche Tissue Diagnostics".
  3. ^ "Ventana Medical Systems". BioPortfolio. Retrieved 2012-11-03.
  4. ^ Sherman, Debra (2007-09-05). "Ventana buys Spring Bioscience, raises outlook". Reuters. Retrieved 2012-11-03.
  5. ^ a b Doherty, Dermot (January 22, 2008). Roche’s Higher Offer Wins Ventana After Seven Months (Update11). Bloomberg. Retrieved November 3, 2012.