Tieron / Targeting
Annual report 2026-06-12
Companies › Japanese listed company

Eisai Co., Ltd.

エーザイ株式会社Tokyo Stock Exchange 4523, Pharmaceutical. Supply-chain directory entry built from public EDINET filings, including relationships the company disclosed in its own annual securities report.

COMPANY NAME (JP)
エーザイ株式会社
TICKER
TSE 4523
EDINET CODE
E00939
CORPORATE NUMBER
6010001000001
INDUSTRY
Pharmaceutical (医薬品)
HEAD OFFICE
文京区小石川4丁目6番10号
DISCLOSED FOOTPRINT
13 sites · 49 subsidiaries

Disclosed major customers

Counterparties Eisai Co., Ltd. named in its own annual securities report. A company named here has Eisai Co., Ltd. in its supply base.

McKesson Corporation10.42% of revenue
McKesson Corporation86,034アメリカス医薬品事業
Annual securities report (有価証券報告書), filed 2026-06-12 — EDINET S100YB05
Cencora,Inc.9.13% of revenue
Cencora,Inc.75,379アメリカス医薬品事業
Annual securities report (有価証券報告書), filed 2026-06-12 — EDINET S100YB05
(株)メディパルホールディングス7.17% of revenue
㈱メディパルホールディングス59,202日本医薬品事業
Annual securities report (有価証券報告書), filed 2026-06-12 — EDINET S100YB05

Business segments

日本
27.77% of revenue
アメリカス
36.4% of revenue
中国
15.84% of revenue
EMEA
9.88% of revenue
イーストアジア・グローバルサウス
8.34% of revenue
その他事業
1.77% of revenue親会社のライセンス収入及び医薬品原料などに係る事業
The filing states a human-rights policy and describes human-rights due diligence: “当社グループでは、2019年3月に「ENW人権方針」を策定しました。国際人権規範に基づく対応は、全社会議体である「ビジネスと人権委員会」が担っています。同委員会にて審議・報告する人権デューデリジェンスにおいて、2025年度は、2024年度に子会社、工場・研究所、一次取引先を対象として実施した人権リスクの高い業種や国・地域を特定するためのアンケート調査結果に基づき、人権リスクの高い取引先や国・地域へのリスク低減施策を実行しました。2026年度以降も人権に負の影響を及ぼす可能性のあるリスクの回避・低

Sector risk context: supply-chain risk by country and sector.

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Sources: EDINET code list (Financial Services Agency) and the company’s own annual securities report (有価証券報告書) retrieved via EDINET. Disclosed relationships are quoted from the filing and carry its EDINET accession number; extraction is automated and conservative — anything the filing does not state is left out. Tieron does not certify, audit or endorse the company, and this page contains no Tieron risk assessment. Report an issue with this page — corrections referencing the accession number shown above are fastest to verify.