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Oriental Shiraishi

1786.TConstruction
Major holders (5%+) · 2
HolderStakeChangeFiled
ITOCHU Corporation17.98%+0.91pp2026-10-29
Effissimo Capital Management Pte. Ltd.11.85%+1.00pp2026-02-26

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

Former and minor holders (below 5%) · 5
Asset Management One Co., Ltd.4.07%2026-09-07
Nomura Asset Management Co., Ltd.3.76%2026-07-06
Nomura Securities Co., Ltd.1.28%2026-07-06
NOMURA INTERNATIONAL PLC0.29%2026-04-06
Mizuho Securities Co., Ltd.0.08%2024-09-24
Ownership history · 18
FiledHolderRatioChangePurpose
2026-09-16AmendedITOCHU Corporation2026-09-16 · amended22.43%+1.02ppBusiness / capital relationship
2026-09-07Asset Management One Co., Ltd.2026-09-074.07%-1.93ppHeld for clients (discretionary / trust)
2026-08-26AmendedITOCHU Corporation2026-08-26 · amended21.41%+1.14ppBusiness / capital relationship
2026-08-12AmendedITOCHU Corporation2026-08-12 · amended20.27%+1.06ppBusiness / capital relationship
2026-07-21AmendedITOCHU Corporation2026-07-21 · amended19.21%+1.06ppBusiness / capital relationship
2026-07-06Nomura Securities Co., Ltd.2026-07-061.28%+1.28ppSecurities trading business
2026-07-06Nomura Asset Management Co., Ltd.2026-07-063.76%+0.59ppAsset management / investment
2026-06-19AmendedITOCHU Corporation2026-06-19 · amended18.15%+1.08ppBusiness / capital relationship
2026-04-06AmendedNomura Securities Co., Ltd.2026-04-06 · amended0.00%newSecurities trading business
2026-04-06AmendedNOMURA INTERNATIONAL PLC2026-04-06 · amended0.29%newSecurities trading business
2026-04-06AmendedNomura Asset Management Co., Ltd.2026-04-06 · amended3.17%newAsset management / investment
2026-02-26Effissimo Capital Management Pte. Ltd.2026-02-2611.85%+1.00ppPure investment; Held for clients (discretionary / trust); Asset management / investment
2025-08-08Effissimo Capital Management Pte. Ltd.2025-08-0810.85%newPure investment; Held for clients (discretionary / trust); Asset management / investment
2025-04-14AmendedITOCHU Corporation2025-04-14 · amended17.07%+1.08ppBusiness / capital relationship
2024-11-01AmendedITOCHU Corporation2024-11-01 · amended15.99%+1.09ppBusiness / capital relationship
2024-09-24AmendedMizuho Securities Co., Ltd.2024-09-24 · amended0.08%newSecurities trading business
2024-09-24AmendedAsset Management One Co., Ltd.2024-09-24 · amended6.00%newHeld for clients (discretionary / trust)
2024-08-20AmendedITOCHU Corporation2024-08-20 · amended14.90%newBusiness / capital relationship

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