StockDriftsStockDriftsRidge-i Inc. (5572) has 8 disclosed large-shareholding filings and 25 disclosed disposals on record, filed by 7 distinct investors. Together those filings cover ¥9.3B ($59.7M) in reported transaction value. The earliest filing StockDrifts holds for Ridge-i Inc. is dated 2023-05-02; the most recent is 2025-10-07. Across these filings the average return since disclosure is -23.42%, measured from each filing date to the latest available close.
| Date | Type | Source | Insider | Purpose | Shares | Price at filing | Return | Value |
|---|---|---|---|---|---|---|---|---|
| 2026-06-17 | SELL | Market Buy | スパークス・アセット・マネジメント株式会社 SPARX Asset Management Co., Ltd. | passive | 0 | ¥2,823 | -1.2% | ¥698M ($4.5M) |
| 2025-10-07 | BUY | Market Buy | SBIホールディングス株式会社 SBI Holdings Co., Ltd. | passive | 974.0K | ¥2,733 | +4.5% | ¥904M ($5.8M) |
| 2025-10-07 | SELL | Market Buy | 株式会社SBI証券 SBI SECURITIES Co.,Ltd. | other | 31.6K | ¥2,733 | -4.5% | ¥12M ($76K) |
| 2025-10-06 | BUY | unknown | 柳原 尚史 Takashi Yanagihara | activist | 467.4K | ¥2,774 | - | - |
| 2025-10-06 | BUY | unknown | 株式会社柳原ホールディングス Yanagihara Holdings Co., Ltd. | activist | 648.3K | ¥2,774 | - | - |
| 2025-10-06 | SELL | Market Buy | 株式会社SBI証券 SBI SECURITIES Co.,Ltd. | other | 32.3K | ¥2,774 | -3.0% | ¥20M ($126K) |
| 2025-10-06 | SELL | unknown | 柳原 尚史 Takashi Yanagihara | activist | 467.4K | ¥2,774 | -3.0% | ¥1.9B ($12.3M) |
| 2025-10-06 | BUY | Market Buy | SBIホールディングス株式会社 SBI Holdings Co., Ltd. | passive | 584.0K | ¥2,774 | - | - |
| 2025-10-06 | SELL | unknown | 柳原 尚史 Takashi Yanagihara | activist | 467.4K | ¥2,774 | -3.0% | ¥1.9B ($12.3M) |
| 2025-10-06 | BUY | unknown | 柳原 尚史 Takashi Yanagihara | activist | 467.4K | ¥2,774 | - | - |
| 2025-10-06 | BUY | unknown | 株式会社柳原ホールディングス Yanagihara Holdings Co., Ltd. | activist | 648.3K | ¥2,774 | - | - |
| 2025-10-06 | SELL | unknown | 株式会社柳原ホールディングス Yanagihara Holdings Co., Ltd. | activist | 648.3K | ¥2,774 | -3.0% | ¥179M ($1.2M) |
| 2025-10-06 | SELL | unknown | 株式会社柳原ホールディングス Yanagihara Holdings Co., Ltd. | activist | 648.3K | ¥2,774 | -3.0% | ¥179M ($1.2M) |
| 2025-09-26 | BUY | Market Buy | SBIホールディングス株式会社 SBI Holdings Co., Ltd. | passive | 584.0K | ¥2,762 | - | - |
| 2025-09-26 | SELL | Market Buy | 株式会社SBI証券 SBI SECURITIES Co.,Ltd. | other | 39.4K | ¥2,762 | -3.4% | ¥51M ($327K) |
| 2025-09-22 | SELL | unknown | 株式会社柳原ホールディングス Yanagihara Holdings Co., Ltd. | activist | 648.3K | ¥2,820 | -1.3% | ¥3M ($21K) |
| 2025-09-22 | BUY | Market Buy | 株式会社SBI証券 SBI SECURITIES Co.,Ltd. | other | 57.8K | ¥2,820 | +1.3% | ¥163M ($1.1M) |
| 2025-09-22 | SELL | unknown | 柳原 尚史 Takashi Yanagihara | activist | 1.1M | ¥2,820 | -1.3% | ¥4M ($29K) |
| 2025-09-22 | SELL | unknown | 柳原 尚史 Takashi Yanagihara | activist | 1.1M | ¥2,820 | -1.3% | ¥75M ($484K) |
| 2025-09-22 | SELL | unknown | 柳原 尚史 Takashi Yanagihara | activist | 1.1M | ¥2,820 | -1.3% | ¥4M ($29K) |
| 2025-09-22 | SELL | unknown | 柳原 尚史 Takashi Yanagihara | activist | 1.1M | ¥2,820 | -1.3% | ¥75M ($484K) |
| 2025-09-22 | SELL | unknown | 株式会社柳原ホールディングス Yanagihara Holdings Co., Ltd. | activist | 648.3K | ¥2,820 | -1.3% | ¥11M ($71K) |
| 2025-09-22 | SELL | unknown | 株式会社柳原ホールディングス Yanagihara Holdings Co., Ltd. | activist | 648.3K | ¥2,820 | -1.3% | ¥11M ($71K) |
| 2025-09-22 | SELL | unknown | 株式会社柳原ホールディングス Yanagihara Holdings Co., Ltd. | activist | 648.3K | ¥2,820 | -1.3% | ¥3M ($21K) |
| 2025-09-22 | BUY | Market Buy | SBIホールディングス株式会社 SBI Holdings Co., Ltd. | passive | 584.0K | ¥2,820 | +1.3% | ¥1.6B ($10.6M) |
| 2025-05-12 | SELL | unknown | 柳原 尚史 Takashi Yanagihara | activist | 1.1M | ¥2,596 | -10.0% | ¥129M ($833K) |
| 2025-05-12 | SELL | unknown | 柳原 尚史 Takashi Yanagihara | activist | 1.1M | ¥2,596 | -10.0% | ¥109M ($703K) |
| 2025-05-12 | SELL | unknown | 株式会社柳原ホールディングス Yanagihara Holdings Co., Ltd. | activist | 658.3K | ¥2,596 | -10.0% | ¥8M ($52K) |
| 2025-05-12 | SELL | unknown | 株式会社柳原ホールディングス Yanagihara Holdings Co., Ltd. | activist | 648.3K | ¥2,596 | -10.0% | ¥34M ($221K) |
| 2025-01-08 | SELL | unknown | 柳原 尚史 Takashi Yanagihara | activist | 1.1M | ¥2,345 | -21.8% | ¥133M ($860K) |
| 2025-01-08 | SELL | unknown | 柳原 尚史 Takashi Yanagihara | activist | 1.1M | ¥2,345 | -21.8% | ¥133M ($860K) |
| 2025-01-08 | SELL | unknown | 株式会社柳原ホールディングス Yanagihara Holdings Co., Ltd. | activist | 658.3K | ¥2,345 | -21.8% | ¥34M ($222K) |
| 2025-01-08 | SELL | unknown | 株式会社柳原ホールディングス Yanagihara Holdings Co., Ltd. | activist | 658.3K | ¥2,345 | -21.8% | ¥34M ($222K) |
| 2024-03-05 | SELL | unknown | 小松 平佳 Takayoshi Komatsu | activist | 185.0K | ¥3,000 | +4.8% | ¥360M ($2.3M) |
| 2024-01-11 | BUY | unknown | 小松 平佳 Takayoshi Komatsu | activist | 305.0K | ¥1,666 | - | - |
| 2023-05-29 | SELL | unknown | 柳原 尚史 Takashi Yanagihara | activist | 1.2M | ¥3,535 | +19.2% | ¥314M ($2.0M) |
| 2023-05-29 | BUY | unknown | 株式会社柳原ホールディングス Yanagihara Holdings Co., Ltd. | activist | 660.0K | ¥3,535 | - | - |
| 2023-05-08 | BUY | unknown | 小松 平佳 Takayoshi Komatsu | activist | 305.0K | ¥3,575 | - | ¥1.1B ($7.0M) |
| 2023-05-08 | BUY | unknown | 小松 平佳 Takayoshi Komatsu | activist | 305.0K | ¥3,575 | -20.1% | ¥1.1B ($7.0M) |
| 2023-05-02 | BUY | unknown | 柳原 尚史 Takashi Yanagihara | activist | 1.2M | ¥3,000 | -4.8% | ¥3.7B ($24.0M) |
| 2023-05-02 | BUY | Market Buy | スパークス・アセット・マネジメント株式会社 SPARX Asset Management Co., Ltd. | passive | 217.4K | ¥3,000 | -4.8% | ¥652M ($4.2M) |
| 2023-05-02 | BUY | negotiated | 株式会社バルカー VALQUA,LTD. | strategic | 416.7K | ¥3,000 | -4.8% | ¥1.2B ($8.1M) |
| 2023-05-02 | BUY | unknown | 株式会社柳原ホールディングス Yanagihara Holdings Co., Ltd. | activist | 660.0K | ¥3,000 | -4.8% | ¥2.0B ($12.8M) |
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.