Women in tech don't just earn less than their male counterparts in dollars, but in shares as well. That's according to a study released by software platform Carta, which found that women in Silicon Valley not only earn less than their male counterparts, but are awarded far less equity as well.

Carta analyzed more than 6,000 companies, 180,000 employees and 15,000 founders, and found that overall, men own 91 percent of employee and founder equity in Silicon Valley, leaving women a scant 9 percent.