Jun 16, 2026 – 5.57pmSydney financier Ben Madsen will be forced to hand over emails and text messages with his brother related to a legal dispute with a former business partner over $140 million worth of shares in artificial intelligence infrastructure start-up Firmus Technologies.Madsen, via his barrister, tried to resist a subpoena for the documents from firms related to Remagen Capital founder Simon Raftery, arguing the move was oppressive.Subscribe to gift this articleGift 5 articles to anyone you choose each month when you subscribe.Subscribe nowAlready a subscriber? Fetching latest articles