Overview

• Sotheby’s agent Brian Axelrod said the listing went live in late August and declined to discuss interest or deal status.
• The oceanfront property overlooks Kailua Bay, spans about 12,528 square feet on roughly 21.8 acres, and includes a guesthouse, screening room, private harbor and advanced security.
• Public filings tie the estate to Big Surf LLC, managed by Altman’s cousin Jennifer Serralta, an entity previously linked to his San Francisco residence.
• Altman purchased the Big Island estate in 2021 for $43 million, and the property previously belonged to Microsoft co-founder Paul Allen.
• OpenAI did not respond to requests for comment, and no details have been confirmed about escrow or prospective buyers.