Bay Area homeowner offers 13-acre Mill Valley property in exchange for Anthropic equity instead of cash

Investment banker Storm Duncan listed a Mill Valley home he purchased in 2019 for $4.75 million on LinkedIn, offering to trade it for Anthropic shares rather than sell it conventionally. Duncan said he wants to shift from being 'over-concentrated in real estate' to gaining exposure to AI investments.

The deal structure lets buyers exchange Anthropic equity without immediately liquidating their shares — they keep 20% of the upside value during the company's lockup period (the time insiders must hold shares after a public offering), making it a way to diversify without triggering a taxable sale.

For Anthropic employees or early investors sitting on concentrated stock positions, this creates a concrete path to convert illiquid wealth into real estate without the tax friction of a normal stock sale — a move that becomes more attractive if Anthropic goes public and share lockups expire.