Tokyo-listed stock · 4548

Seikagaku Corporation (4548): large-holder filings

No trades disclosed in the last 12 months; 5 disclosures on record in all.

Stakes raised / cut: 0 / 012 months
Large holders filing: 012 months
Last close: ¥56130 Oct 2026
One-year change: −14.4%

5 disclosed buys and sales on record since 6 August 2025. A large holder files with EDINET when a stake of 5% or more moves by a point or more; a change has a value once it can be priced.

Latest disclosures

Disclosed	Filed by	Type	Amount	Traded
23 Oct 2025	SHINGYO CO.,LTD.5% holder (Japan)	Buy	¥380M ($2.5M)	16 Oct 2025
19 Aug 2025	SHINGYO CO.,LTD.5% holder (Japan)	Buy	¥10.9M ($73.7K)	12 Aug 2025
18 Aug 2025	株式会社三菱UFJフィナンシャル・グループ5% holder (Japan)	Sale	¥777M ($5.2M)	11 Aug 2025
14 Aug 2025	SHINGYO CO.,LTD.5% holder (Japan)	Buy	¥1.3B ($8.7M)	8 Aug 2025
6 Aug 2025	Invesco Asset Management (Japan) Limited5% holder (Japan)	Sale	¥376M ($2.5M)	31 Jul 2025