A Russell news release said the two men joined the firm in mid-January and will be based in San Francisco.
Polisson most previously served as BGI’s chief marketing officer, with responsibilities that included BGI’s iShares global business. At BGI since 1998, he was head of Global Operations Risk Management for two years before joining the iShares business.
Arenberg most recently worked as a managing director in BGI’s global eBusiness, and he served as managing director of channel marketing for BGI for six years. Prior to joining BGI, he served on the corporate strategy team and in the institutional business at Charles Schwab & Co.