FWIW, it's a 36% increase in Authorized Shares
The rate of increase in the AS appears to be accelerating.
When BIEL increased the AS to 9B on July 8, 2015, 121 days had passed since 8B was set, for a 12.5% increase
Seventy-six days later, on Sept 22, the AS bump from 9B to 11B, a 22.2% increase
The Dec 4 change was filed 73 days after the Sept filing, and new 15B AS is a 36.4% increase from the previous 11B.
Overall, in 2015, the AS has increased by 87.5% since March.