I find the exercise date of all those shares particularly compelling. It may mean nothing, but it's relatively interesting regardless:
1) What if the number of increased shares isn't approved? Then, they don't have all those shares they may be expecting to get through the additional issuance so they need to exercise what they have now so they will have shares to sell in the event of a pop.
2) The WWDC is coming up.
3) Visser is getting rights to his shares NOW. He could obviously do it much later, but if the price jumps for some reason, it would obviously be a helluva lot more expensive for him to buy in after any run. HOWEVER, his lock up for 5 years is of great value to every single other shareholder except for Ben, lol! Why? Because he sold 'em already, lol! Well, maybe he bought 'em back by now.