Insider and Institutional Buying Signal

This might be worth keeping an eye on Uber's CEO just bought $10M of $UBER • 141,000 shares at $70.96 on September 10th Other notable people buying Uber: • Uber's President/COO Andrew M. bought $5.3M • Nancy Pelosi spent up to $1M on $UBER calls in May • Saudi Arabia's Public Investment Fund holds $5.3B • Bill Ackman's Pershing Square holds $2.5B It seems they aren't worried about Tesla's Cybercab