Tohoku Steel

5484.TTSE STANDARDIron & Steel
Major holders (5%+) · 6
HolderStakeChangeFiled
Daido Steel Co., Ltd.joint holder95.75%-0.21pp2026-10-09
TYK CORPORATIONjoint holder95.75%-0.21pp2026-10-09
OKAYA & CO., LTD.95.75%-0.21pp2026-10-09
Hikari Tsushin K.K.6.46%0.00pp2026-07-06
UH Partners 3, Inc.6.31%0.00pp2026-07-06
UH Partners 2, Inc.6.28%0.00pp2026-07-06

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

Former and minor holders (below 5%) · 1
SIL, Inc.1.59%2026-07-06
Tender offers · 1
FiledOfferorPricePeriod endsStatusFilings
2026-05-18Daido Steel Co., Ltd.¥4,4912026-06-29Successful97.54% after3

Grouped by EDINET filing links. Price and outcome as stated in filings.

Ownership history · 64
FiledHolderRatioChangePurpose
2026-05-22Same-day filingUH Partners 3, Inc.2026-05-22joint6.31%no change—
2026-05-22Same-day filingHikari Tsushin K.K.2026-05-22joint7.46%no change—
2026-05-22Same-day filingTYK CORPORATION2026-05-228.36%no changeGoing-private / tender offer related; Collateral-related; Business / capital relationship
2026-05-22Same-day filingOKAYA&CO., LTD.2026-05-22joint9.96%no change—
2026-05-22Same-day filingDaido Steel Co., Ltd.2026-05-22joint33.77%no change—
2026-05-22AmendedSIL, Inc.2026-05-22 · amendedjoint1.59%no change—
2026-05-22AmendedUH Partners 2, Inc.2026-05-22 · amendedjoint6.28%no change—
2026-05-22AmendedUH Partners 3, Inc.2026-05-22 · amendedjoint6.31%no change—
2026-05-22AmendedHikari Tsushin K.K.2026-05-22 · amendedjoint7.46%no change—
2026-05-22AmendedTYK CORPORATION2026-05-22 · amendedjoint8.36%new—
2026-05-22AmendedOKAYA&CO., LTD.2026-05-22 · amendedjoint9.96%new—
2026-05-22AmendedDaido Steel Co., Ltd.2026-05-22 · amended33.77%newGoing-private / tender offer related; Strategic holding (cross-shareholding); Collateral-related
2025-09-29AmendedSIL, Inc.2025-09-29 · amended1.59%no changePure investment
2025-09-29AmendedUH Partners 2, Inc.2025-09-29 · amended6.28%no changePure investment
2025-09-29AmendedUH Partners 3, Inc.2025-09-29 · amended6.31%+0.21ppPure investment
2025-09-29AmendedHikari Tsushin K.K.2025-09-29 · amended7.46%no changePure investment
2025-04-30AmendedSIL, Inc.2025-04-30 · amended1.59%no changePure investment
2025-04-30AmendedUH Partners 3, Inc.2025-04-30 · amended6.10%+1.00ppPure investment
2025-04-30AmendedUH Partners 2, Inc.2025-04-30 · amended6.28%no changePure investment
2025-04-30AmendedHikari Tsushin K.K.2025-04-30 · amended7.46%no changePure investment

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