Former BitMEX and SIX Digital Exchange Executive Rupertus Rothenhaeuser Joins Sage Capital Management

Digital prime broker Sage Capital Management has appointed Rupertus Rothenhaeuser to its Supervisory Board, strengthening its leadership team as demand for institutional digital asset services continues to accelerate.

Over his 35-year career, Rothenhaeuser — currently Chief Commercial Officer (CCO) at e-money institute AllUnity — has held senior roles across both traditional finance and digital asset markets. His previous positions include CCO for BitMEX, CEO of BitMEX Switzerland, and CEO at Crypto Finance Brokerage AG in Zurich. He also served as a member of the Executive Team at SIX Digital Exchange (SDX).

Before specialising in digital assets, Rothenhaeuser spent more than two decades in equity derivatives sales and trading at firms such as Börse Stuttgart, BNP Paribas, ABN AMRO, and CSFB.

“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.”

Rupertus Rothenhaeuser, Member of the Supervisory Board, Sage Capital Management

“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.”

Nathan Sage, CEO, Sage Capital Management

Founded in 2015, Sage Capital Management is a regulated digital asset prime broker providing institutional clients with access to deep liquidity, multi-venue execution, collateralised lending, and crypto-linked banking. With operations spanning multiple jurisdictions, the company partners with leading financial institutions to deliver secure and compliant solutions for professional investors.

Its platform simplifies institutional access to digital assets through a single API that connects clients to the full trading ecosystem.

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