Yomeishu Seizo

2540.TTSE PRIME
Major holders (5%+) · 3
HolderStakeChangeFiled
―70.07%+41.92pp2026-04-15
―70.07%+41.92pp2026-04-15
―70.07%+41.92pp2026-04-15

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

Former and minor holders (below 5%) · 7
Nomura Asset Management Co., Ltd.1.22%2026-04-21
-0.54%2026-04-20
-0.26%2026-04-20
NOMURA INTERNATIONAL PLC0.25%2026-04-21
Nomura Securities Co., Ltd.0.08%2026-04-21
-0.02%2026-04-20
Taisho Pharmaceutical Holdings Co., Ltd.0.00%2025-03-28
Ownership history · 19
FiledHolderRatioChangePurpose
2026-04-21Nomura Securities Co., Ltd.2026-04-210.08%-0.03ppSecurities trading business
2026-04-21NOMURA INTERNATIONAL PLC2026-04-210.25%-4.74ppSecurities trading business
2026-04-21Nomura Asset Management Co., Ltd.2026-04-211.22%+0.13ppAsset management / investment
2026-04-20Amended-2026-04-20 · amended0.02%newSecurities trading business
2026-04-20Amended-2026-04-20 · amended0.26%newPure investment
2026-04-20Amended-2026-04-20 · amended0.54%newPure investment
2026-03-19AmendedNomura Securities Co., Ltd.2026-03-19 · amended0.11%newSecurities trading business
2026-03-19AmendedNomura Asset Management Co., Ltd.2026-03-19 · amended1.09%newAsset management / investment
2026-03-19AmendedNOMURA INTERNATIONAL PLC2026-03-19 · amended4.99%newSecurities trading business
2025-03-28Amended―2025-03-28 · amended0.00%-0.02pp—
2025-03-28Amended―2025-03-28 · amended28.13%no changeMaterial proposals to management (activist)
2025-03-28Amended―2025-03-28 · amended41.94%newMaterial proposals to management (activist)
2025-03-28Amended―2025-03-28 · amended0.02%no changeMaterial proposals to management (activist)
2025-03-28Amended―2025-03-28 · amended28.13%+0.14ppMaterial proposals to management (activist)
2025-03-28Amended―2025-03-28 · amended0.02%newMaterial proposals to management (activist)
2025-03-28Amended―2025-03-28 · amended27.99%newMaterial proposals to management (activist)
2025-03-28AmendedTaisho Pharmaceutical Holdings Co., Ltd.2025-03-28 · amended0.00%-20.00ppBusiness / capital relationship
2024-11-07Same-day filingTaisho Pharmaceutical Holdings Co., Ltd.2024-11-0720.00%+20.00pp—
2024-11-07Same-day filingTaisho Pharmaceutical Holdings Co., Ltd.2024-11-070.00%new—

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