Japanese Law No.4 Extinguishment of Share Option

I always file for registration of extinguishment of several listed companys' Share Option (= new share subscription right) a month, which have ceased to exist during previous month.
This month, the number of share option extinction has hefty increased as never before.
The increase also denotes the increase in job leaver for the month of December last year, because the most of these options is so-called “stock option”.