Showa Chemical Industry

4990.TChemicals
Filed as Showa Chemical Industry Co.,Ltd. (2022-06–2026-06)
Major holders (5%+) · 2
HolderStakeChangeFiled
Sigma corporation16.18%0.00pp2026-07-10
Kenzo Ishibashi11.85%0.00pp2026-07-10

Each holder's own ratio from its most recent large-shareholding report.

Former and minor holders (below 5%) · 1
Nissei Kogyo corporation0.78%2026-07-10
Ownership history · 6
FiledHolderRatioChangePurpose
2026-07-10AmendedNissei Kogyo corporation2026-07-10 · amended0.78%newPure investment
2026-07-10AmendedKenzo Ishibashi2026-07-10 · amended11.85%no change—
2026-07-10AmendedSigma corporation2026-07-10 · amended16.18%no changePure investment
2025-02-21Sigma corporation2025-02-2116.18%no changePure investment
2024-09-11Kenzo Ishibashi2024-09-1111.85%new—
2024-09-11Sigma corporation2024-09-1116.18%newPure investment

Each holder in 5% reports, joint holders included. Purpose is classified from the filed text.