I think the conversion from restricted units to common stock was a specific time (1 year?) following the grant date. The stock option grants were also timed to occur on that date to conform with the company's stock option grant program. I would guess that it is all "automatic" stuff that would not constitute an insider trade.
My reading is that there were no sells, just options granted and restricted stock converted to common stock on the anniversary date.
Can someone interpret the codes and footnote, and confirm that these are options granted on Jan 10 2014 at an exercise price of $20.49, first exercise possible is 25% on Jan 10 2015 (1 year) and an additional 12.5% each 6 months thereafter.