CyberStep Holdings

3810.TTSE STANDARDInformation & Communication
Filed as CyberStep, Inc. (2022-08–2025-08), CyberStep,Inc. (2022-10–2025-01)
Major holders (5%+) · 6
HolderStakeChangeFiled
Adachi Aya29.57%+1.64pp2026-06-05
Chamber Management Co., Ltd.22.86%-1.48pp2025-08-14
CD one LLP15.65%+4.57pp2025-01-24
Tsunagaru LLC12.66%-6.00pp2026-01-06
Tiger Japan Investment Co., Ltd.10.74%-5.13pp2026-06-05
Nagoshi Yoshitsugu9.84%—2026-01-05

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

Former and minor holders (below 5%) · 4
ibis capital partners, Inc.3.69%2024-11-15
Takahiro Yamashita3.23%2026-03-17
SATO Rui1.42%2025-12-05
RoadRunner, Inc.0.80%2025-12-05
Ownership history · 73
FiledHolderRatioChangePurpose
2024-12-25RoadRunner, Inc.2024-12-253.30%no changeStable shareholder; Long-term holding
2024-12-25SATO Rui2024-12-255.89%no changeStable shareholder
2024-12-11RoadRunner, Inc.2024-12-113.30%no changeStable shareholder; Long-term holding
2024-12-11SATO Rui2024-12-115.89%no changeStable shareholder
2024-12-10RoadRunner, Inc.2024-12-103.30%no changeStable shareholder; Long-term holding
2024-12-10SATO Rui2024-12-105.89%no changeStable shareholder
2024-11-21Chamber Management Co., Ltd.2024-11-2131.39%newPure investment
2024-11-20AmendedCD one LLP2024-11-20 · amended23.85%newPure investment
2024-11-18RoadRunner, Inc.2024-11-183.30%-0.70ppStable shareholder; Long-term holding
2024-11-18SATO Rui2024-11-185.89%-1.26ppStable shareholder
2024-11-15Amendedibis capital partners, Inc.2024-11-15 · amended3.69%-7.26ppPure investment
2024-11-11Amendedibis capital partners, Inc.2024-11-11 · amended10.95%-1.15ppPure investment
2024-07-22Amendedibis capital partners, Inc.2024-07-22 · amended12.10%-1.04ppPure investment
2024-07-05Amendedibis capital partners, Inc.2024-07-05 · amended13.14%-1.24ppPure investment
2024-06-26Amendedibis capital partners, Inc.2024-06-26 · amended14.38%-1.04ppPure investment
2024-06-07Amendedibis capital partners, Inc.2024-06-07 · amended15.42%+3.21ppPure investment
2024-06-04RoadRunner, Inc.2024-06-044.00%no changeStable shareholder; Long-term holding
2024-06-04SATO Rui2024-06-047.15%no changeStable shareholder
2024-05-29Amendedibis capital partners, Inc.2024-05-29 · amended12.21%-4.88ppPure investment
2024-05-28RoadRunner, Inc.2024-05-284.00%-0.02ppStable shareholder; Long-term holding

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