Palantir's direct listing breaks with Spotify and Slack in one critical way that affects insiders' ability to cash in their shares

· Palantir Technologies is reportedly adding a lockup period to its direct listing, limiting investors' ability to sell shares immediately after the company starts trading. 
· Through the plan, investors could sell about 20% of their shares immediately. 
· Spotify and Slack, the two companies that paved the way for direct...