InsidersTradesSigma
Across 3 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Discover the complete record of transactions filed by TAIYO KOSAN CO.,INC.. Officer active across 1 company, notably 久光製薬株式会社. Cumulatively, 4 reports have been logged. History available since 6 January 2026. The latest transaction was filed on 28 April 2026 (Holding update). Regulator: EDINET (Japan FSA). The full history is openly available.
4 of 4 declarations
TAIYO KOSAN CO.,INC. is a declarant and a large shareholder of 久光製薬株式会社 (XTKS). The declarant has 4 filings in total, and across the 4 most recent filings the modal transaction nature is “Holding update”, with dates ranging from 2026-01-14 to 2026-04-30; the filing amounts are 1405856399.697317, 1403804413.4326, 1370972872.077953, and 12243036.19263601 EUR.