What is 住友電気工業株式会社 buying in Japan next?
住友電気工業株式会社 (?) 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 住友電気工業株式会社’s latest EDINET 5% filings. Stake is the disclosed large-shareholding percentage.
| Issuer | Stake | Purpose | As of |
|---|---|---|---|
| 住友理工株式会社 (5191) | 99.8% | activist | 2026-01-19 |
| 日新電機株式会社 (6641) | 99.1% | activist | 2023-04-07 |
| 株式会社テクノアソシエ (8249) | 93.1% | activist | 2023-04-07 |
| 住友電設株式会社 (1949) | 50.0% | other | 2025-12-22 |
| 株式会社明電舎 (6508) | 5.6% | strategic | 2026-02-19 |
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 2026-01-19. Research, not investment advice, see the disclaimer.