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4464.TTSE STANDARDChemicals
Major holders (5%+) · 3
HolderStakeChangeFiled
Effissimo Capital Management Pte. Ltd.53.15%0.00pp2026-09-17
Sun Trade Co., Ltd.joint holder14.57%0.00pp2026-09-17
MIKIKO SUZUKI6.70%0.00pp2025-08-12

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

Former and minor holders (below 5%) · 7
-3.59%2025-10-20
Tanaka Hideakijoint holder3.05%2026-09-17
-0.65%2025-10-20
KeePer Technical Laboratory Co., Ltd.0.00%2025-11-25
-0.00%2025-10-20
KeePer Technical Laboratory Co., Ltd.0.00%2025-11-25
Simplex Asset Management Co., Ltd.0.00%2025-03-17
Tender offers · 3
FiledOfferorPricePeriod endsStatusFilings
2026-01-22ECM Master Fund SPV 3¥2,462—Successful58.27% after5
2025-09-16ECM Master Fund SPV 3¥2,462—Successful36.14% after6
2025-08-07Gyo Asset Management Inc.¥2,680chg—Unsuccessful39.86% after14

Grouped by EDINET filing links. Price and outcome as stated in filings.

Ownership history · 23
FiledHolderRatioChangePurpose
2026-09-17Tanaka Hideaki2026-09-17joint3.05%no change—
2026-09-17Sun Trade Co., Ltd.2026-09-17joint14.57%no change—
2026-09-17Effissimo Capital Management Pte. Ltd.2026-09-1753.15%no changeMaterial proposals to management (activist); Engagement / governance dialogue
2026-05-07Effissimo Capital Management Pte. Ltd.2026-05-0753.15%no changeMaterial proposals to management (activist)
2026-03-12Effissimo Capital Management Pte. Ltd.2026-03-1253.15%+18.11ppMaterial proposals to management (activist)
2025-11-25KeePer Technical Laboratory Co., Ltd.2025-11-250.00%newStrategic holding (cross-shareholding); Collateral-related
2025-11-19Effissimo Capital Management Pte. Ltd.2025-11-1935.04%-18.11ppMaterial proposals to management (activist)
2025-10-20-2025-10-200.00%-1.76pp—
2025-10-20-2025-10-200.65%no changeStrategic holding (cross-shareholding)
2025-10-20-2025-10-203.59%no changeStrategic holding (cross-shareholding)
2025-09-30-2025-09-300.65%newStrategic holding (cross-shareholding)
2025-09-30-2025-09-301.76%new—
2025-09-30-2025-09-303.59%newStrategic holding (cross-shareholding)
2025-09-17KeePer Technical Laboratory Co., Ltd.2025-09-1712.45%+0.38ppGoing-private / tender offer related; Strategic holding (cross-shareholding); Collateral-related
2025-08-12AmendedMIKIKO SUZUKI2025-08-12 · amended6.70%no changeLong-term holding
2025-08-12AmendedMIKIKO SUZUKI2025-08-12 · amended6.70%newLong-term holding
2025-08-12AmendedHideaki Tanaka2025-08-12 · amended3.05%newLong-term holding
2025-08-12AmendedSun Trade Corporation2025-08-12 · amended14.57%no changeLong-term holding
2025-08-12AmendedEffissimo Capital Management Pte. Ltd.2025-08-12 · amendedjoint53.15%new—
2025-08-12AmendedSUN TRADE CO., LTD2025-08-12 · amended14.57%no changeLong-term holding

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