ARK, the global real estate investment and management platform of WeWork, is in talks to acquiring 600 California St., a 20-story, class A office building in San Francisco, from Bentall Kennedy for a reported $330 million, according to media reports.

WeWork occupies 73,000 square feet of space of the 358,591-square-foot building.

The ARK venture, created this year to acquire and renovate commercial real estate assets, received a $1 billion commitment from Canada’s Ivanhoé Cambridge, which serves as a strategic partner.

Bentall Kennedy acquired the asset in 2014 for $216.5 million.