The property asset involved in the transaction is located at 100 West Randolph Street in Chicago. It is an office space with a total square footage of 300,000. The redeveloped Thompson Center is significant as it is undergoing a $300 million overhaul led by Google.

Summary of transation details:

• Property Type: Office
• Transaction Amount: Not specified
• Address: 100 West Randolph Street
• Market: Chicago
• Landlord: Sundar Pichai - Google
• Tenant: Joe Mansueto - Morningstar
• Brokers: Jason Houze, Aaron Schuster, Jon Milonas, Peter Livaditis & Kyle Kamin - CBRE

Key individuals involved in this leasing arrangement include Sundar Pichai representing Google, who is the landlord, and Joe Mansueto representing Morningstar, the tenant. The deal is notable as it signals a strong demand for office space in the central business district, with Morningstar in advanced talks regarding the lease.