"Mark Zuckerberg listed a company on NASDAQ. — with Chris Cox and 4 others," reads the Facebook founder's Timeline. Har. Har. Of course he would. (In case you forgot what today was.) If you want to keep up with the goings on, head on over to the NASDAQ livestream. Updating your Facebook with a snarky counter status is totally optional. 

[H/T TechCrunch]