Internetworking and Broadband Consulting

3920.TTSE STANDARDInformation & Communication
Filed as Internetworking and Broadband Consulting Co.,Ltd. (2022-08–2026-05)
Major holders (5%+) · 4
HolderStakeChangeFiled
HIROYUKI KATO35.85%—2025-11-25
Hikari Tsushin K.K.12.83%+1.01pp2026-08-26
PLUS FUJI CORPORATION8.69%—2025-11-25
UH Partners 2, Inc.5.09%+1.01pp2025-08-21

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

Former and minor holders (below 5%) · 1
UH5 Inc.0.40%2025-08-21
Ownership history · 21
FiledHolderRatioChangePurpose
2025-11-25AmendedPLUS FUJI CORPORATION2025-11-25 · amended8.69%newStable shareholder; Long-term holding
2025-11-25AmendedHIROYUKI KATO2025-11-25 · amended35.85%newParticipation in management
2025-08-21AmendedUH5 Inc.2025-08-21 · amended0.40%no changePure investment
2025-08-21AmendedUH Partners 2, Inc.2025-08-21 · amended5.09%+1.01ppPure investment
2025-08-21AmendedHikari Tsushin K.K.2025-08-21 · amended7.34%no changePure investment
2025-08-21AmendedUH5 Inc.2025-08-21 · amended0.40%no changePure investment
2025-08-21AmendedUH Partners 2, Inc.2025-08-21 · amended4.08%+1.00ppPure investment
2025-08-21AmendedHikari Tsushin K.K.2025-08-21 · amended7.34%no changePure investment
2025-08-21AmendedUH5 Inc.2025-08-21 · amended0.40%no changePure investment
2025-08-21AmendedUH Partners 2, Inc.2025-08-21 · amended3.08%+1.03ppPure investment
2025-08-21AmendedHikari Tsushin K.K.2025-08-21 · amended7.34%no changePure investment
2025-08-21AmendedUH5 Inc.2025-08-21 · amended0.40%no changePure investment
2025-08-21AmendedUH Partners 2, Inc.2025-08-21 · amended2.05%+1.48ppPure investment
2025-08-21AmendedHikari Tsushin K.K.2025-08-21 · amended7.34%no changePure investment
2025-08-21AmendedUH5 Inc.2025-08-21 · amended0.40%no changePure investment
2025-08-21AmendedUH Partners 2, Inc.2025-08-21 · amended0.57%newPure investment
2025-08-21AmendedHikari Tsushin K.K.2025-08-21 · amended7.34%+0.44ppPure investment
2025-08-21AmendedUH5 Inc.2025-08-21 · amended0.40%newPure investment
2025-08-21AmendedHikari Tsushin K.K.2025-08-21 · amended6.90%+0.72ppPure investment
2025-08-21AmendedHikari Tsushin K.K.2025-08-21 · amended6.18%+0.05ppPure investment

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