On Jul 18, 堀江 正雄 submitted the Change Report to Ministry of Finance. The report shows that 堀江 正雄 increased their holdings in $Tanabe Engineering (1828.JP)$, with their joint shareholding ratio up from 8.05% to 9.24%.
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.