On Sep 24, SMBC Nikko Securities and related parties submitted the Change Report to Ministry of Finance. The report shows that SMBC Nikko Securities and related parties increased their holdings in $H2O Retailing (8242.JP)$, with their joint shareholding ratio up from 5.24% to 6.48%.
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.