In this segment from Monday's Investor Beat, host Chris Hill and Motley Fool analysts Jason Moser and Taylor Muckerman take a look at four stocks moving on the market today.

Shares of Lifelock (NYSE:LOCK) are falling today after the company disclosed that whistle-blowers have talked to the Federal Trade Commission regarding the company's marketing practices. The Container Store (NYSE:TCS) also dropped today on news of a downgrade to underperform by Merrill Lynch. Humana (NYSE:HUM) has hit an all-time high after proposed Medicare cuts were lower than originally expected. And shares of 3D Systems (NYSE:DDD) fell today, after they, too, were downgraded by Merrill Lynch. The accompanying report posited that the company's organic growth rate would peak in 2014.