Crypto firm Copper hired Carly Nuzbach Lowery as its chief legal officer. She was formerly a lawyer at Barclays and Linklaters. The appointment is a sign that digital asset companies are beefing up their legal ranks as the sector attracts more scrutiny from regulators.

Dan Keegan, a top Citigroup markets executive, is leaving the bank to start an investment fund focused on financial-technology companies. He had held several roles helping build up Citigroup’s equities-trading business over 15 years. Most recently, he was the head of all North American markets, a statesmanlike role serving as the bank’s representative to top clients.