She has over 3 million shares coming to her at an option price of 18.87 (around that if my eyes saw correctly). Get used to it. She'll buy and sell them every chance she gets.
Tax attorney to explain what's allowed... but guessing buy at 18.87 36K shares and then sell year-old 36K shares there-by possibly sheltering income as capital income 20% instead of max rate 39% or whatever its up to. (But the IRS may take the view the option exercised in income... that's why Tax Attorney)...