StockDriftsStockDriftsKeihanshin Building Co., Ltd. (8818) has 9 disclosed large-shareholding filings and 2 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥1.5B ($9.8M) in reported transaction value. The earliest filing StockDrifts holds for Keihanshin Building Co., Ltd. is dated 2024-02-15; the most recent is 2026-04-30. Across these filings the average return since disclosure is +15.82%, measured from each filing date to the latest available close.
| Date | Type | Source | Insider | Purpose | Shares | Price at filing | Return | Value |
|---|---|---|---|---|---|---|---|---|
| 2026-08-20 | BUY | unknown | ウエリントン・マネージメント・カンパニー・エルエルピー(Wellington Management Company LLP) Wellington Management Company LLP | other | 4.9M | ¥1,106 | +1.6% | ¥5.5B ($35.2M) |
| 2026-08-03 | SELL | acquisition | 株式会社ストラテジックキャピタル Strategic Capital, Inc. | activist | 9.0M | ¥1,106 | -1.6% | ¥292M ($1.9M) |
| 2026-07-22 | BUY | Market Buy | SMBC日興証券株式会社 | other | 3.5M | ¥1,105 | +1.7% | ¥1.4B ($8.8M) |
| 2026-07-22 | SELL | Market Buy | 三井住友DSアセットマネジメント株式会社 | passive | 193.2K | ¥1,105 | -1.7% | ¥32M ($209K) |
| 2026-07-22 | BUY | unknown | 三井住友カード 株式会社 | other | 1.5M | ¥1,105 | - | - |
| 2026-07-22 | BUY | unknown | 株式会社 三井住友銀行 | other | 4.3M | ¥1,105 | - | - |
| 2026-07-13 | SELL | acquisition | 株式会社ストラテジックキャピタル Strategic Capital, Inc. | activist | 9.2M | ¥1,127 | +0.3% | ¥1.3B ($8.7M) |
| 2026-06-02 | SELL | acquisition | 株式会社ストラテジックキャピタル Strategic Capital, Inc. | activist | 5.2M | ¥2,196 | +48.8% | ¥1.4B ($9.2M) |
| 2026-05-21 | BUY | Market Buy | 株式会社 三井住友銀行 | other | 2.1M | ¥2,205 | -49.0% | ¥43M ($278K) |
| 2026-05-21 | BUY | Market Buy | SMBC日興証券株式会社 | other | 1.1M | ¥2,205 | -49.0% | ¥2.1B ($13.5M) |
| 2026-05-21 | BUY | Market Buy | 三井住友DSアセットマネジメント株式会社 | passive | 112.9K | ¥2,205 | -49.0% | ¥54M ($347K) |
| 2026-05-21 | BUY | Market Buy | 三井住友カード 株式会社 | other | 737.0K | ¥2,205 | -49.0% | ¥11M ($69K) |
| 2026-04-30 | BUY | Market Buy | 株式会社ストラテジックキャピタル Strategic Capital, Inc. | activist | 5.9M | ¥1,892 | -40.6% | ¥1.3B ($8.6M) |
| 2026-02-06 | BUY | Market Buy | 株式会社ストラテジックキャピタル Strategic Capital, Inc. | activist | 5.1M | ¥2,007 | -44.0% | ¥235M ($1.5M) |
| 2025-12-23 | BUY | Market Buy | 株式会社ストラテジックキャピタル Strategic Capital, Inc. | activist | 5.0M | ¥1,892 | -40.6% | ¥933M ($6.0M) |
| 2025-12-08 | BUY | Market Buy | 株式会社ストラテジックキャピタル Strategic Capital, Inc. | activist | 4.5M | ¥1,904 | -41.0% | ¥939M ($6.1M) |
| 2025-10-24 | BUY | Market Buy | 株式会社ストラテジックキャピタル Strategic Capital, Inc. | activist | 4.0M | ¥1,743 | -35.5% | ¥970M ($6.3M) |
| 2025-07-15 | BUY | Market Buy | 株式会社ストラテジックキャピタル Strategic Capital, Inc. | activist | 3.5M | ¥1,498 | -25.0% | ¥855M ($5.5M) |
| 2025-04-14 | BUY | Market Buy | 株式会社ストラテジックキャピタル Strategic Capital, Inc. | activist | 2.9M | ¥1,429 | -21.3% | ¥614M ($4.0M) |
| 2024-04-08 | BUY | Market Buy | 株式会社 三井住友銀行 Sumitomo Mitsui Banking Corporation | other | 2.1M | ¥1,540 | -27.0% | ¥182M ($1.2M) |
| 2024-04-08 | BUY | Market Buy | 三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited | passive | 90.7K | ¥1,540 | - | ¥140M ($901K) |
| 2024-04-08 | SELL | Market Buy | SMBC日興証券株式会社 SMBC Nikko Securities Inc. | other | 156.2K | ¥1,540 | +27.0% | ¥8M ($49K) |
| 2024-04-08 | SELL | Market Buy | SMBCファイナンスサービス株式会社 SMBC Finance Service Co., Ltd. | other | 0 | ¥1,540 | +27.0% | ¥1.0B ($6.5M) |
| 2024-04-08 | BUY | Market Buy | 三井住友カード 株式会社 Sumitomo Mitsui Card Co., Ltd. | other | 737.0K | ¥1,540 | - | ¥1.1B ($7.3M) |
| 2024-02-15 | BUY | Market Buy | 株式会社ストラテジックキャピタル Strategic Capital, Inc. | activist | 2.5M | ¥1,463 | -23.2% | ¥3.7B ($23.6M) |
Every trade listed above comes from an official regulatory disclosure. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.