Jyoti Bansal helped 400 of his employees become millionaires after he sold his software startup AppDynamics for $3.7 billion to Cisco in 2017. Dozens of employees saw the value of their company shares rise to over $5 million, Bansal told CNBC Make It. However, Bansal said he regretted his choice to sell as AppDynamics could've become a "much bigger" company.