Seikagaku

4548.TPharmaceutical

Key numbers · FY ended 2026-03

Revenue¥36.6bn-6.9% YoY Operating income−¥660m-149.5% YoY Net income (owners)¥1.5bn+21.3% YoY Total assets¥86.3bn+2.9% YoY EPS (basic)¥26.99+21.3% YoY

Full financial history and reports →

Stock price4548 · View chart ↗

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Latest filings

Thu, Oct 23 · JST1 filing

09:025% STAKESeikagaku · KAISEISYA INC. + 3 joint holders · 31.92% → 32.92%+1.00pp

Tue, Aug 19 · JST1 filing

09:005% STAKESeikagaku · KAISEISYA INC. + 3 joint holders · 31.89% → 31.92%+0.03pp

Thu, Aug 14 · JST1 filing

15:365% STAKESeikagaku · KAISEISYA INC. + 3 joint holders · 28.36% → 31.89%+3.53pp

Tue, Nov 5 · JST1 filing

10:475% STAKESeikagaku · SHINGYO CO., LTD. + 3 joint holders · 28.35% → 28.36%+0.01pp

Tue, Sep 3 · JST1 filing

09:435% STAKESeikagaku · SHINGYO CO., LTD. + 3 joint holders · 28.35% → 28.36%+0.01pp

All filings →

Major holders (5%+) · 2

Holder	Stake	Change	Filed
KAISEISYA INC.	17.39%	+1.01pp	2025-10-23
SHINGYO CO., LTD.	13.81%	0.00pp	2025-10-23

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