A look at some of the key "people moves" over the past week, including Asif Alam (pictured), who joins Crux Informatics.
This year's Rankings featured several companies that were involved in major acquisitions over the last 12 months.
Grayson's extensive experience and contacts within the fintech sector will help AlphaPoint expand its business, officials say.
AlphaPoint hopes that Rathi's experience at exchanges will help it create support for cryptocurrency-linked investment products with broader investor appeal.
Held was previously CFO with TradingScreen and will help lead AlphaPoint's growth strategy.