On Jun 25, Hikari Tsushin and related parties submitted the Change Report to Ministry of Finance. The report shows that Hikari Tsushin and related parties increased their holdings in $Tosnet (4754.JP)$, with their joint shareholding ratio up from 16.24% to 17.24%.
Source: Edinet Announcement
What is the 5% shareholding reporting system?
Shareholders with holding ratio exceeding 5% must submit a Large Shareholding Report within five business days from that day. If the holding ratio increases or decreases by 1% or more after submitting a Large Shareholding Report, the holder must submit a Change Report within five business days from that day.