Does Help, Pix! grant kills to the recipient of the buff or Lulu?

Solution 1:

Based on this thread the kill is awarded to the Ally buffed. It works the same as Leonas passive. I have seen a few LuLu games and also the answer in question in that thread has +10 so one can infer they are correct.

Solution 2:

There was a Riot post that states the Ally Buffed gets the kill, I have however experienced a situation where I buffed the jungler and they were after a buff that I got (I was not actively doing any damage). We assume pix got the final hit and the buff itself transferred to me instead of the jungler so beware of that possible hiccup in your travels :)