What is 日本製鉄株式会社 buying in Japan next?
日本製鉄株式会社 (?) discloses its Japanese stakes under Japan’s own regime, EDINET large-shareholding reports (大量保有報告書), the side a US 13F is blind to. Japan is also the one market where a prediction is checkable almost immediately: the report is due within about five business days of crossing 5%, not the US 13F’s 45. Research, not investment advice.
Currently disclosed Japanese holdings
From 日本製鉄株式会社’s latest EDINET 5% filings. Stake is the disclosed large-shareholding percentage.
| Issuer | Stake | Purpose | As of |
|---|---|---|---|
| 山陽特殊製鋼株式会社 (5481) | 100.0% | activist | 2025-12-10 |
| 黒崎播磨株式会社 (5352) | 92.4% | activist | 2026-03-18 |
| 日鉄物産株式会社 (9810) | 70.1% | activist | 2023-04-14 |
| ジオスター株式会社 (5282) | 40.4% | strategic | 2023-04-20 |
| 大阪製鐵株式会社 (5449) | 39.3% | strategic | 2025-04-16 |
The predicted next buys, fresh disclosures, and the week’s catalysts. One email a week. Honest numbers, never advice.
The full Japan board, predicted and disclosed, is on Japan. How the model works and its honest limits are on methodology. Data as of 2025-12-10. Research, not investment advice, see the disclaimer.