Companies/JP/9823

株式会社マミーマートホールディングス · MAMMY MART HOLDINGS CORPORATION

Ownership & governance

Executives 5Directors 8Avg age 57Avg tenure 11.3y
Hirofumi Iwasaki
President
Age 54Since 2008-11-30

Executives5

Hirofumi Iwasaki
President
Age 54Since 2008-11-30
Hiroki Kobata
Chief Tech/Sci/R&D Officer
Age 56Since 2019-11-30
Hiroshi Wakabayashi
Comptroller/Controller/Auditor
Age 60Since 2021-08-31
Osamu Hara
Human Resources Officer
Age 54Since 2014-08-31
Shigeru Aoki
Director of Finance/CFO
Age 52Since 2015-12-31

Board of directors8

Hirofumi Iwasaki
Director/Board Member
Age 54Since 1998-11-30
Norio Shiba
Director/Board Member
Age 75Since 2003-11-30
Shigeru Aoki
Director/Board Member
Age 52Since 2015-11-30
Osamu Hara
Director/Board Member
Age 54Since 2018-12-20
Hiroshi Wakabayashi
Director/Board Member
Age 60Since 2021-12-16
Hiroki Kobata
Director/Board Member
Age 56Since 2019-11-30
Mihoko Nagai
Director/Board Member
Age 60Since 2019-11-30
Kohei Otsuka
Director/Board Member
Age 50Since 2021-11-30

Shareholders5

NameStakeShares
Tadashi Iwasaki
30.08 %
16,240,000
SUMITOMO CORPORATION
20.04 %
10,820,000
Mammy Mart Business Association
7.65 %
4,130,000
MAMMY MART HOLDINGS CORPORATION
7.354 %
3,970,000
Hirofumi Iwasaki
3.603 %
1,945,000

Catalog · 2026-07-09

Registry officers14

NameRoleSinceShares
佐世 芳監査役2008-12-01-
原 修取締役執行役員人事部長2018-01-01-
岩崎 厚宏監査役2014-08-01-
岩崎 裕文代表取締役社長1998-12-01-
斯波 範雄取締役副社長執行役員業務本部長彩裕フーズ株式会社代表取締役会長2003-12-01-
木場田 裕樹常務取締役執行役員2019-01-01-
東野 和彰取締役2023-12-01-
柳 好美取締役2023-12-01-

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