什么是5%机制？On Sep 12, あいホールディングス株式会社 and related parties submitted the Change Report to Ministry of Finance. The report shows that あいホールディングス株式会社 and related parties increased their holdings in $Nihon Denkei (9908.JP)$, with their joint shareholding ratio up from 19.29% to 20.38%.
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.