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Monday, May 25, 2026
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Rupertus Rothenhaeuser Appointed to Sage Capital Management’s Supervisory Board

Rupertus Rothenhaeuser has joined Sage Capital Management’s Supervisory Board. His appointment comes at a time of rapid growth for the digital prime broker, with increasing demand for its services from hedge funds, asset managers, trading firms and brokerages. 

Over the last 35 years, Rupertus Rothenhaeuser, currently CCO at e-money institute, AllUnity, has held a number of leadership roles including CCO for BitMEX, CEO for BitMEX Switzerland, and CEO at Crypto Finance Brokerage AG in Zurich. He was also a member of the Executive Team at SIX Digital Exchange (SDX). Prior to specialising in the digital space, Rupertus gained over 25 years of experience in senior management roles in Equity Derivatives Sales and Trading at prominent firms including Börse Stuttgart, BNP Paribas, ABN AMRO, and CSFB.

Rupertus Rothenhaeuser commented: “Sage Capital Management is one of very few regulated digital prime brokers, and is operating in a market that has huge growth potential.  Their approach to client servicing and focus on simplifying institutional access to digital assets makes them stand out. I am looking forward to leveraging my experience to drive further growth, helping to establish Sage Capital Management as a market leader in this rapidly evolving industry.”

Nathan Sage, CEO, Sage Capital Management added: “With so many large financial institutions yet to tap into the crypto space, this is the ideal time for Rupertus to come on board. His experience combines best practice from the trad-fi space with the agility of the digital space, and I am thrilled that he has chosen to join our Supervisory Board.”

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