EAGAN, MINN. — Artis REIT, one of the largest diversified commercial real estate investment trusts in Canada,has acquired the Prime Therapeutics headquarters in Eagan for $98.5 million. The sale includes the first two phases of the facility at 2900 Ames Crossing Road within the Boulder Lake Business Park. A 225,000-square-foot building was completed in September, while a 160,000-square-foot building is slated for completion in 2019. Ryan Watts, Sonja Dusil, Tom Holtz and Judd Welliver of CBRE represented the seller, Eagan Heights LLC, a local partnership with developer United Properties. Prime Therapeutics is a pharmacy benefits manager owned by Blue Cross and Blue Shield.