I think Gwynne Shotwell should have had much more ownership in the company than she does.
She owns about 0.1% of the company, even though she's been with SpaceX since Sep 2002.
That's 24 years.
SpaceX was founded on March 14 2002, and Shotwell joined in Sep 2002, only 6 months after the founding of the company.
Yes, Elon put a lot of money (all of it) into the company at the beginning, and yes, she probably didn't negotiate much equity at the beginning, but she's been a force and a material contributor to SpaceX's success.
Would've loved to see her ownership worth a minimum of $10B.