On Sep 6, SMBC Nikko Securities and related parties submitted the Large Shareholding Report to Ministry of Finance to disclose its 6.23% ownership of the shares in $Nippon Air Conditioning Services (4658.JP)$.
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.