On Jul 2, 日本化学産業株式会社 submitted the Change Report to Ministry of Finance. The report shows that 日本化学産業株式会社 increased their holdings in $Nihon Kagaku Sangyo (4094.JP)$, with their joint shareholding ratio up from 54.73% to 71.14%.
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.