In addition, the company hired Ryan Beach, who will assumed Clarke's previous post as president. John Russel "Rusty" Vanneman was named chief investment officer.
"I look forward to working with Ryan and Rusty, as well as more directly with our current and prospective industry partners, to harness opportunities to take CLS to the next level," Clarke said.
Beach joins CLS from NorthStar Financial Services Group, the parent company of CLS, where he was associate general counsel. Before that, he was an attorney at Scudder Law Firm, a private boutique securities firm where he advised clients on SEC and FINRA requirements as well as other corporate financial and investment matters.
"As the financial services industry becomes more heavily regulated, our partners and clients will require assistance with increasingly complex compliance and legal matters," Beach said.
Vanneman, a chartered financial analyst and chartered market technician, will lead the firm's portfolio management and investment research teams and sit on its investment committee. He has more than 20 years' experience in the financial services industry, most recently as chief investment officer and portfolio manager for a large investment adviser in the Boston area.
"My overarching goal as CLS CIO is to help define the investment direction and themes for CLS and lead the charge for our portfolio management and investment research teams to capitalize on their individual strengths and upgrade their capacity," Vanneman said.