Dentsu Soken

4812.TInformation & Communication

Filed as Information Services International-Dentsu, Ltd. (2022-08–2025-04)

Major holders (5%+) · 2

Holder	Stake	Change	Filed
DENTSU GROUP INC.	61.76%	0.00pp	2026-09-25
Oasis Management Company Ltd.	5.00%	—	2026-08-17

Each holder's own ratio from its most recent large-shareholding report.

Ownership history · 3

Filed	Holder	Ratio	Change	Purpose
2026-09-25Amended	DENTSU GROUP INC.2026-09-25 · amended	61.76%	no change	Going-private / tender offer related; Participation in management; Stable shareholder; Collateral-related
2026-09-04Amended	DENTSU GROUP INC.2026-09-04 · amended	61.76%	new	Going-private / tender offer related; Participation in management; Stable shareholder; Collateral-related
2026-08-17	Oasis Management Company Ltd.2026-08-17	5.00%	new	Material proposals to management (activist); Engagement / governance dialogue

Each holder in 5% reports, joint holders included. Purpose is classified from the filed text.