Companies/JP/4564

ONCOTHERAPY SCIENCE, INC. · オンコセラピー.サイエンス株式会社

Ownership & governance

Executives 3Directors 5Avg age 61Avg tenure 7.4y
Hatsuo Kato
Chairman
Age 82Since 2020-05-31

Executives3

Junichi Shimada
President
Age 65Since 2022-06-30
Zehyon Paku
President
Age 50Since 2019-12-04
Yuka Yamane
Chief Tech/Sci/R&D Officer
Age 53Since 2012-07-31

Board of directors5

Yuichi Komine
Director/Board Member
Age 54Since 2014-08-31
Zehyon Paku
Director/Board Member
Age 50Since 2018-05-31
Hatsuo Kato
Chairman
Age 82Since 2020-05-31
Yoshio Miki
Director/Board Member
Age 69Since 2022-05-31
Junichi Shimada
Director/Board Member
Age 65Since 2022-05-31

Shareholders5

NameStakeShares
Yusuke Nakamura
3.138 %
12,511,000
SHIONOGI & CO., LTD.
1.831 %
7,300,000
Shuichi Nakatsuru
1.467 %
5,850,000
Long Corridor Asset Management Ltd.
1.153 %
4,598,300
Yasuo Araki
0.7776 %
3,100,000

Catalog · 2026-07-09

Registry officers7

NameRoleSinceShares
三木 義男取締役2022-06-01-
加藤 肇夫取締役会長2020-06-01-
小峰 雄一取締役2008-06-01-
山根 由香監査役（常勤）2021-06-01-
嶋田 順一代表取締役社長2007-04-01-
田島 照久監査役2014-09-01-
高木 美也子監査役2004-06-01-

Registry · as of 2026-03-31

Institutional (13F)

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Fund membership

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Street consensus

Consensus none

Firm rows and rating mix from Yahoo Finance; mean target is Yahoo’s aggregate until OpenFilings derives consensus from broker rows.

Peers