The chief operating officer of Switzerland-based crypto exchange-traded product (ETP) firm 21Shares has left the firm, the company confirmed in an email to CoinDesk.

Lucy Reynolds, who joined 21Shares in 2020, previously had been head of product management at WisdomTree Europe.

"She has played a pivotal role in the evolution of our company and we are grateful for her contributions," a spokesperson for 21Shares said in an email to CoinDesk. "This mutual decision has been in the works for over 6 months, and we have been collaborating together on the transition plan."

21Shares offers nearly 40 ETPs in Europe and the U.S., according to a spokeswoman, though it shuttered six earlier this year. According to the company website, it has five funds it offers in conjunction with Cathie Woods' ARK Invest. ARK/21Shares are also among many asset managers who have applied for U.S. regulatory approval of a spot bitcoin ETF.

Last year, the firm raised $25 million in a funding round that gave it a $2 billion valuation.