Palantir is preparing to file its S-1 ahead of a potential September IPO

· The secretive data analytics firm Palantir is preparing to file an S-1 ahead of a potential September IPO, Business Insider has learned.
· The company is working with banks to prepare a tender offer to clean up its cap table, according to Bloomberg. 
· Earlier this week, Palantir lowered the strike price for employees to...