The Wall Street Journal reports that data from executive compensation tracking firm Equilar shows Apple CEO Tim Cook set to see a major windfall during the first quarter of 2012 with the vesting of two separate restricted stock unit grants currently valued at nearly $100 million. Of all the Silicon Valley executives who have a vesting event scheduled for the first quarter of 2012, the one who stands to reap the most is Apple Inc. Chief Executive Tim Cook, the study found.