Arent

5254.TInformation & Communication
Major holders (5%+) · 4
HolderStakeChangeFiled
Hiroki Kamobayashi34.24%-1.01pp2025-12-16
Hikari Tsushin K.K.12.36%+1.02pp2026-08-21
Umebayashi Masanao7.03%+3.57pp2025-12-26
Sakai Fumitaka5.80%—2024-06-26

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

Former and minor holders (below 5%) · 7
SBI Investment Co., Ltd.4.54%2026-09-16
Atsushi Maruyama4.43%2024-10-29
Takashi Nakagawa4.20%2025-05-29
UH Partners 2, Inc.2.90%2026-03-04
SBI SECURITIES Co., Ltd.0.34%2026-09-16
Sakura Insurance Inc.0.23%2026-03-04
Rheos Capital Works Inc.0.00%2026-01-22
Ownership history · 66
FiledHolderRatioChangePurpose
2026-03-04AmendedHikari Tsushin K.K.2026-03-04 · amended6.88%+1.03ppPure investment
2026-03-04AmendedSakura Insurance Inc.2026-03-04 · amended0.23%newPure investment
2026-03-04AmendedHikari Tsushin K.K.2026-03-04 · amended5.85%newPure investment
2026-01-22AmendedRheos Capital Works Inc.2026-01-22 · amended0.00%-0.68pp—
2026-01-22AmendedSBI SECURITIES Co., Ltd.2026-01-22 · amended1.18%-0.17ppSecurities trading business
2026-01-22AmendedSBI Investment Co., Ltd.2026-01-22 · amended5.71%-0.17ppPure investment
2025-12-26AmendedUmebayashi Masanao2025-12-26 · amended7.03%+3.57pp—
2025-12-19AmendedRheos Capital Works Inc.2025-12-19 · amended0.68%-1.59ppPure investment; Held for clients (discretionary / trust)
2025-12-19AmendedSBI SECURITIES Co., Ltd.2025-12-19 · amended1.35%+0.36ppSecurities trading business
2025-12-19AmendedSBI Investment Co., Ltd.2025-12-19 · amended5.88%no changePure investment
2025-12-17AmendedSBI SECURITIES Co., Ltd.2025-12-17 · amended0.99%+0.21ppSecurities trading business
2025-12-17AmendedRheos Capital Works Inc.2025-12-17 · amended2.27%-1.58ppPure investment; Held for clients (discretionary / trust)
2025-12-17AmendedSBI Investment Co., Ltd.2025-12-17 · amended5.88%no changePure investment
2025-12-16AmendedHiroki Kamobayashi2025-12-16 · amended34.24%-1.01ppStable shareholder
2025-12-16AmendedHiroki Kamobayashi2025-12-16 · amended35.25%-0.54ppStable shareholder
2025-12-15AmendedSBI SECURITIES Co., Ltd.2025-12-15 · amended0.78%+0.32ppSecurities trading business
2025-12-15AmendedRheos Capital Works Inc.2025-12-15 · amended3.85%-1.32ppPure investment; Held for clients (discretionary / trust)
2025-12-15AmendedSBI Investment Co., Ltd.2025-12-15 · amended5.88%no changePure investment
2025-12-10AmendedSBI SECURITIES Co., Ltd.2025-12-10 · amended0.46%-0.10ppSecurities trading business
2025-12-10AmendedRheos Capital Works Inc.2025-12-10 · amended5.17%-1.07ppPure investment; Held for clients (discretionary / trust)

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