StockDriftsStockDriftsTayca Corporation (4027) has 16 disclosed large-shareholding filings and 11 disclosed disposals on record, filed by 10 distinct investors. Together those filings cover ¥3.6B ($23.0M) in reported transaction value. The earliest filing StockDrifts holds for Tayca Corporation is dated 2021-08-12; the most recent is 2026-04-24. Across these filings the average return since disclosure is +23.07%, measured from each filing date to the latest available close.
| Date | Type | Source | Insider | Purpose | Shares | Price at filing | Return | Value |
|---|---|---|---|---|---|---|---|---|
| 2026-07-14 | BUY | Market Buy | 株式会社DOE5パーセント | activist | 387.0K | ¥2,288 | +3.1% | ¥231M ($1.5M) |
| 2026-07-14 | BUY | Market Buy | 植島 幹九郎 | activist | 836.5K | ¥2,288 | +3.1% | ¥89M ($575K) |
| 2026-07-14 | BUY | Market Buy | 株式会社ナチュラリ | activist | 666.9K | ¥2,288 | +3.1% | ¥42M ($271K) |
| 2026-07-14 | BUY | Market Buy | 株式会社ドリームキャリアホールディングス | activist | 68.2K | ¥2,288 | +3.1% | ¥5M ($34K) |
| 2026-07-14 | BUY | Market Buy | 株式会社UESHIMA | activist | 1.6K | ¥2,288 | +3.1% | ¥5M ($34K) |
| 2026-05-26 | BUY | Market Buy | 株式会社DOE5パーセント | activist | 299.8K | ¥2,132 | +10.7% | ¥459M ($3.0M) |
| 2026-05-26 | SELL | unknown | 植島 幹九郎 | activist | 832.2K | ¥2,132 | -10.7% | ¥403M ($2.6M) |
| 2026-05-26 | BUY | Market Buy | 株式会社ナチュラリ | activist | 677.2K | ¥2,132 | +10.7% | ¥275M ($1.8M) |
| 2026-05-26 | BUY | unknown | 株式会社ドリームキャリアホールディングス | activist | 68.2K | ¥2,132 | - | - |
| 2026-04-24 | BUY | Market Buy | 株式会社ナチュラリ | activist | 548.2K | ¥1,884 | +25.3% | ¥433M ($2.8M) |
| 2026-04-24 | BUY | unknown | 株式会社DOE5パーセント | activist | 84.1K | ¥1,884 | - | - |
| 2026-04-24 | BUY | Market Buy | 植島 幹九郎 | activist | 1.0M | ¥1,884 | +25.3% | ¥27M ($174K) |
| 2026-04-24 | BUY | Market Buy | 株式会社ドリームキャリアホールディングス | activist | 68.2K | ¥1,884 | +25.3% | ¥9M ($58K) |
| 2026-04-06 | BUY | Market Buy | 株式会社DOE5パーセント | activist | 84.1K | ¥1,930 | +22.3% | ¥162M ($1.0M) |
| 2026-04-06 | BUY | Market Buy | 植島 幹九郎 | activist | 1.0M | ¥1,930 | +22.3% | ¥189M ($1.2M) |
| 2026-04-06 | BUY | Market Buy | 株式会社ナチュラリ | activist | 318.4K | ¥1,930 | +22.3% | ¥46M ($298K) |
| 2026-04-06 | BUY | Market Buy | 株式会社ドリームキャリアホールディングス | activist | 63.7K | ¥1,930 | +22.3% | ¥125M ($804K) |
| 2026-03-16 | BUY | unknown | 植島 幹九郎 | activist | 909.6K | ¥1,720 | +37.2% | ¥1.6B ($10.1M) |
| 2026-03-16 | BUY | unknown | 株式会社ナチュラリ | activist | 293.6K | ¥1,720 | +37.2% | ¥506M ($3.3M) |
| 2026-02-06 | SELL | unknown | 株式会社みずほ銀行 Mizuho Bank, Ltd. | strategic | 1.6M | ¥1,503 | -57.0% | ¥11M ($70K) |
| 2026-01-09 | SELL | Market Buy | サマラン ユーシッツ(SAMARANG UCITS) SAMARANG UCITS | passive | 1.1M | ¥1,224 | -92.8% | ¥313M ($2.0M) |
| 2025-12-25 | SELL | Market Buy | 光通信株式会社 | passive | 763.0K | ¥1,231 | -91.7% | ¥303M ($2.0M) |
| 2025-12-25 | BUY | Market Buy | 株式会社アイビー | passive | 202.6K | ¥1,231 | +91.7% | ¥15M ($95K) |
| 2025-11-06 | BUY | Market Buy | 株式会社アイビー IB, Inc. | passive | 190.9K | ¥1,302 | +81.3% | ¥249M ($1.6M) |
| 2025-11-06 | BUY | Market Buy | 光通信株式会社 Hikari Tsushin K.K. | passive | 1.0M | ¥1,302 | +81.3% | ¥1.3B ($8.5M) |
| 2025-10-07 | BUY | Market Buy | みずほ証券 株式会社 Mizuho Securities Co., Ltd. | strategic | 320.4K | ¥1,293 | +82.5% | ¥3M ($20K) |
| 2025-10-07 | BUY | Market Buy | 株式会社みずほ銀行 Mizuho Bank, Ltd. | strategic | 1.0M | ¥1,293 | - | - |
| 2025-10-07 | BUY | Market Buy | アセットマネジメントOne株式会社 Asset Management One Co., Ltd. | other | 254.1K | ¥1,293 | - | - |
| 2025-09-22 | BUY | unknown | 株式会社みずほ銀行 Mizuho Bank, Ltd. | strategic | 1.0M | ¥1,333 | - | - |
| 2025-09-22 | BUY | unknown | みずほ証券 株式会社 Mizuho Securities Co., Ltd. | strategic | 317.4K | ¥1,333 | - | - |
| 2025-09-22 | SELL | unknown | アセットマネジメントOne株式会社 Asset Management One Co., Ltd. | other | 254.3K | ¥1,333 | -77.0% | ¥3M ($21K) |
| 2025-09-05 | SELL | Market Buy | サマラン ユーシッツ(SAMARANG UCITS) SAMARANG UCITS | passive | 1.3M | ¥1,348 | -75.1% | ¥380M ($2.5M) |
| 2025-09-05 | BUY | Market Buy | 株式会社みずほ銀行 Mizuho Bank, Ltd. | strategic | 1.0M | ¥1,348 | +75.1% | ¥93M ($603K) |
| 2025-09-05 | BUY | Market Buy | みずほ証券 株式会社 Mizuho Securities Co., Ltd. | strategic | 318.0K | ¥1,348 | +75.1% | ¥380M ($2.5M) |
| 2025-09-05 | BUY | Market Buy | アセットマネジメントOne株式会社 Asset Management One Co., Ltd. | other | 255.3K | ¥1,348 | +75.1% | ¥3M ($21K) |
| 2025-08-26 | SELL | Market Buy | サマラン ユーシッツ(SAMARANG UCITS) SAMARANG UCITS | passive | 1.6M | ¥1,303 | -81.1% | ¥327M ($2.1M) |
| 2025-07-30 | SELL | Market Buy | サマラン ユーシッツ(SAMARANG UCITS) SAMARANG UCITS | passive | 1.8M | ¥1,237 | -90.8% | ¥355M ($2.3M) |
| 2025-04-01 | SELL | Market Buy | サマラン ユーシッツ(SAMARANG UCITS) SAMARANG UCITS | passive | 2.1M | ¥1,320 | -78.8% | ¥325M ($2.1M) |
| 2022-07-07 | BUY | unknown | 株式会社みずほ銀行 Mizuho Bank, Ltd. | strategic | 1.0M | ¥1,214 | - | - |
| 2022-07-07 | SELL | unknown | みずほ証券 株式会社 Mizuho Securities Co., Ltd. | strategic | 39.3K | ¥1,214 | -94.4% | ¥112M ($725K) |
| 2022-07-07 | SELL | unknown | アセットマネジメントOne株式会社 Asset Management One Co., Ltd. | other | 273.8K | ¥1,214 | -94.4% | ¥240M ($1.6M) |
| 2021-08-12 | SELL | Market Buy | サマラン ユーシッツ(SAMARANG UCITS) SAMARANG UCITS | passive | 2.6M | ¥1,301 | -81.4% | ¥365M ($2.4M) |
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.