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INFORMATION DEVELOPMENT CO., LTD.
K.K. PURAIDO
AI FACTORY CO., LTD.
ID Wuhan
ID Singapore
ID America
ID Europe

Investor Relations Status of Shareholders

Major Shareholders（As of March 31, 2026）

Shareholders Ratio of Shareholding*
The Master Trust Bank of Japan, Ltd. (Trust Account)
 9.85%
A.K.Corporation
 9.10%
PERSHING-DIV. OF DLJ SECS. CORP. 6.89%
ID Employee Ownership Account
 5.15%
Mizuho Trust & Banking Co., Ltd.
 3.25%
Custody Bank of Japan, Ltd. (Trust Account) 2.54%
TDC SOFT Inc.
 2.47%
Akemi Funakoshi
 1.72%
Kaori Marubayashi
 1.56%
Custody Bank of Japan, Ltd. (Trust Account E)
 1.23%
Total of Top 10 Shareholders 43.80%

*Treasury stock (26 thousand shares) are not included in outstanding shares when calculating the Ratio of Shareholdings. The ratio is truncated to three decimals without rounding.

Composition by No. of Shareholdings