On Jul 1, 株式会社シンシア工務店 submitted the Change Report to Ministry of Finance. The report shows that 株式会社シンシア工務店 increased their holdings in $Tokyo Kikai Seisakusho (6335.JP)$, with their joint shareholding ratio up from 6.59% to 7.73%.
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.