Bay Area homeowner and investment banker Storm Duncan is trying to swap a 13-acre Mill Valley property for Anthropic equity instead of cash . He created a LinkedIn page for the home, describing the move as a "diversification play" because he is "under-concentrated in AI investments relative to the importance of AI in the future, and over-concentrated in real estate." A young Anthropic employee, Duncan says, might be "in the exact opposite scenario." TechCrunch reports: Duncan is asking potential buyers to email him to discuss deal specifics, but he said it would be a private transaction that doesn't require the buyer to sell their stock outright. On LinkedIn, he also said the homebuyer would "continue to retain 20% of the upside value of the shares exchanged for the duration of the lockup period." Duncan, who described himself as a longtime Bay Area resident who moved to Miami during the pandemic, bought the property in 2019 for $4.75 million.…