Seiyu Kogyo
9170.TServices
Key numbers · FY ended 2025-09
Stock price9170 · View chart ↗
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Latest filings
Fri, Aug 28 · JST1 filing
13:165% STAKESeiyu Kogyo · HOSONUMA Co., Ltd. + 3 joint holders · 87.62% → 78.66%−8.96ppFri, Aug 9 · JST2 filings
16:06MATERIALSeiyu Kogyo · Change in parent company or specified subsidiary12:005% STAKESeiyu Kogyo · Odake Company Co., Ltd · 7.11%new 7.11%Wed, Jul 24 · JST1 filing
14:56MATERIALSeiyu Kogyo · SEIYU KOGYO Co., Ltd. files extraordinary reportTue, May 14 · JST1 filing
09:005% STAKESeiyu Kogyo · Yamazaki Gravel Inc. · 5.11% → 5.13%+0.02ppMajor holders (5%+) · 6
| Holder | Stake |
|---|---|
| HOSONUMA Co., Ltd. | 45.40% |
| MASAHITO HOSONUMA | 23.61% |
| NAOKO HOSONUMA | 8.47% |
| Odake Company Co., Ltd | 7.11% |
| Yamazaki Gravel Inc. | 5.13% |
Each holder's own ratio from its most recent large-shareholding report. All 6 holders and full history →