She will also join the executive leadership team of Ameriprise Financial, Columbia Threadneedle’s parent company.
Scrimgeour joins from M&G Investments, where she is currently chief risk officer, and a director of M&G Group.
Before her spell at M&G, she worked at BlackRock in various roles including chief operating officer for international fixed income, ultimately becoming a member of the European executive committee which led the firm’s EMEA business and oversaw the integration of BlackRock and BGI in London.
Global chief executive officer Ted Truscott said: “I am delighted to welcome Michelle as EMEA CEO and I look forward to her joining our leadership team. Michelle is a business leader with excellent asset management experience and a strong track record of achieving results. In addition to her extensive experience across distribution, product, operations, risk and control functions, she brings energy, commerciality and a strong understanding of both wholesale and institutional client needs.”