Companies/JP/2815

ARIAKE JAPAN CO., LTD. · アリアケジャパン株式会社

Executives 3Directors 8Avg age 66Avg tenure 8.3y

Naoki Shirakawa

Age 69Since 2021-03-31Profile →

Executives3

Naoki Shirakawa

Age 69Since 2021-03-31

Kouichi Matsumoto

Chief Administrative Officer

Age 68Since 2014-05-31

Masahiko Kameoka

Sales & Marketing

Age 68Since 2023-05-31

Board of directors8

Naoki Shirakawa

Director/Board Member

Age 69Since 1999-05-31

Kouichi Matsumoto

Director/Board Member

Age 68Since 2007-05-31

Koji Iwaki

Director/Board Member

Age 61Since 2018-05-31

Seishi Hoshino

Director/Board Member

Age 54Since 2022-05-31

Takahiko Sasaki

Director/Board Member

Age 67—

Masahiko Kameoka

Director/Board Member

Age 68Since 2023-05-31

Masayuki Abe

Director/Board Member

Age 69Since 2025-05-31

Sachiko Takatori

Director/Board Member

Age 60Since 2025-05-31

Shareholders5

Name	Stake	Shares
Okada Family	32.67 %	10,718,991
Okada Kineo Scholarship Foundation	6.693 %	2,196,000
Global Alpha Capital Management Ltd.	5.527 %	1,813,450
Artisan Partners LP	4.18 %	1,371,500
ARIAKE JAPAN CO., LTD.	2.924 %	959,184

Catalog · 2026-07-09

Registry officers15

Name	Role	Since	Shares
Kouichi Matsumoto	Chief Administrative Officer	2014-05-31	-
Masahiko Kameoka	Sales & Marketing	2023-05-31	-
Naoki Shirakawa	President	2021-03-31	-
世知原圭司	取締役九州工場工場長	2026-06-01	-
亀岡正彦	専務取締役	2015-04-01	-
井川真由美	取締役（監査等委員）	2026-06-01	-
佐々木隆彦	取締役	2026-03-01	-
安部真行	取締役（監査等委員）	2025-06-01	-

Registry · as of 2026-07-09