StockDriftsStockDriftsTsunagu Group Holdings, Inc. (6551) has 21 disclosed large-shareholding filings and 18 disclosed disposals on record, filed by 13 distinct investors. Together those filings cover ¥2.8B ($17.7M) in reported transaction value. The earliest filing StockDrifts holds for Tsunagu Group Holdings, Inc. is dated 2021-03-18; the most recent is 2026-03-17. All of it is parsed from EDINET large-shareholding (5%+) reports, the official disclosure system operated by the Financial Services Agency (Japan). Across these filings the average return since disclosure is +14.41%, measured from each filing date to the latest available close.
| Date | Type | Source | Insider | Purpose | Shares | Price at filing | Return | Value |
|---|---|---|---|---|---|---|---|---|
| 2026-06-29 | BUY | unknown | 米田 寿子 | strategic | 4.5K | ¥535 | +10.7% | ¥2M ($16K) |
| 2026-06-29 | SELL | unknown | 株式会社米田事務所 | strategic | 436.2K | ¥535 | -10.7% | ¥1M ($9K) |
| 2026-06-29 | SELL | negotiated | 米田 光宏 | activist | 436.2K | ¥535 | -10.7% | ¥1M ($9K) |
| 2026-03-17 | BUY | Market Buy | 坂口 岳洋 | passive | 4.7K | ¥705 | +4.3% | ¥3M ($20K) |
| 2026-03-17 | BUY | Market Buy | 佐野 玲子 | passive | 23.4K | ¥705 | +4.3% | ¥16M ($102K) |
| 2026-03-17 | BUY | Market Buy | 佐野 睦典 | passive | 23.8K | ¥705 | +4.3% | ¥16M ($104K) |
| 2026-03-17 | BUY | Market Buy | イノベーション・エンジン株式会社 | passive | 451.0K | ¥705 | -4.3% | ¥304M ($2.0M) |
| 2025-11-21 | BUY | Market Buy | 坂口 岳洋 Takehiro Sakaguchi | passive | 4.7K | ¥784 | -13.9% | ¥3M ($22K) |
| 2025-11-21 | BUY | Market Buy | 佐野 玲子 Reiko Sano | passive | 23.4K | ¥784 | -13.9% | ¥18M ($119K) |
| 2025-11-21 | BUY | Market Buy | 佐野 睦典 Mutsunori Sano | passive | 23.8K | ¥784 | -13.9% | ¥18M ($119K) |
| 2025-11-21 | BUY | Market Buy | JPE第2号株式会社 JPE No. 2 Co., Ltd. | passive | 4.0K | ¥784 | -13.9% | ¥3M ($22K) |
| 2025-11-21 | BUY | Market Buy | 坂口 岳洋 Takehiro Sakaguchi | passive | 4.7K | ¥784 | -13.9% | ¥3M ($22K) |
| 2025-11-21 | BUY | Market Buy | 佐野 玲子 Reiko Sano | passive | 23.4K | ¥784 | -13.9% | ¥18M ($119K) |
| 2025-11-21 | BUY | Market Buy | 佐野 睦典 Mutsunori Sano | passive | 23.8K | ¥784 | -13.9% | ¥18M ($119K) |
| 2025-11-21 | BUY | Market Buy | JPE第2号株式会社 JPE No. 2 Co., Ltd. | passive | 4.0K | ¥784 | -13.9% | ¥3M ($22K) |
| 2025-11-21 | BUY | Market Buy | イノベーション・エンジン株式会社 Innovation Engine, Inc. | passive | 383.4K | ¥784 | -13.9% | ¥301M ($1.9M) |
| 2025-11-21 | BUY | Market Buy | イノベーション・エンジン株式会社 Innovation Engine, Inc. | passive | 383.4K | ¥784 | -13.9% | ¥301M ($1.9M) |
| 2025-01-23 | SELL | unknown | エムシーピーアセットマネジメントカンパニーリミテッド MCP Asset Management Company Limited | other | 343.3K | ¥575 | -17.4% | ¥52M ($337K) |
| 2024-05-24 | BUY | negotiated | 米田 寿子 Hisako Yoneda | strategic | 4.5K | ¥639 | +5.6% | ¥3M ($19K) |
| 2024-05-24 | BUY | negotiated | 株式会社米田事務所 Yoneda Office Co., Ltd. | strategic | 436.2K | ¥639 | +5.6% | ¥273M ($1.8M) |
| 2024-05-24 | BUY | negotiated | 米田 寿子 Hisako Yoneda | strategic | 4.5K | ¥639 | +5.6% | ¥3M ($19K) |
| 2024-05-24 | BUY | negotiated | 株式会社米田事務所 Yoneda Office Co., Ltd. | strategic | 436.2K | ¥639 | +5.6% | ¥273M ($1.8M) |
| 2024-05-24 | BUY | negotiated | 米田 光宏 Mitsuhiro Yoneda | activist | 436.2K | ¥639 | +5.6% | ¥269M ($1.7M) |
| 2024-05-24 | BUY | negotiated | 米田 光宏 Mitsuhiro Yoneda | activist | 436.2K | ¥639 | +5.6% | ¥269M ($1.7M) |
| 2024-05-23 | BUY | unknown | NISSOホールディングス株式会社 NISSO HOLDINGS Co.,Ltd. | strategic | 1.6M | ¥649 | +4.0% | ¥1.0B ($6.5M) |
| 2023-11-07 | BUY | acquisition | エムシーピーアセットマネジメントカンパニーリミテッド MCP Asset Management Company Limited | other | 430.7K | ¥777 | -13.1% | ¥335M ($2.2M) |
| 2022-09-22 | BUY | unknown | 株式会社SBI証券 SBI SECURITIES Co.,Ltd. | other | 84.6K | ¥350 | +92.9% | ¥28M ($180K) |
| 2022-08-02 | SELL | negotiated | 米田 寿子 Hisako Yoneda | strategic | 4.5K | ¥326 | -107.1% | ¥27M ($174K) |
| 2022-08-02 | SELL | negotiated | 株式会社米田事務所 Yoneda Office Co., Ltd. | strategic | 856.5K | ¥326 | -107.1% | ¥38M ($242K) |
| 2022-08-02 | SELL | negotiated | 米田 寿子 Hisako Yoneda | strategic | 4.5K | ¥326 | -107.1% | ¥27M ($174K) |
| 2022-08-02 | SELL | negotiated | 株式会社米田事務所 Yoneda Office Co., Ltd. | strategic | 856.5K | ¥326 | -107.1% | ¥38M ($242K) |
| 2022-08-02 | SELL | negotiated | 米田 光宏 Mitsuhiro Yoneda | activist | 1.4M | ¥326 | -107.1% | ¥64M ($410K) |
| 2022-08-02 | SELL | negotiated | 米田 光宏 Mitsuhiro Yoneda | activist | 1.4M | ¥326 | -107.1% | ¥64M ($410K) |
| 2022-07-26 | SELL | negotiated | 株式会社米田事務所 Yoneda Office Co., Ltd. | strategic | 856.5K | ¥326 | -107.1% | ¥50M ($325K) |
| 2022-07-26 | BUY | negotiated | 米田 寿子 Hisako Yoneda | strategic | 4.5K | ¥326 | +107.1% | ¥1M ($9K) |
| 2022-07-26 | BUY | negotiated | 株式会社米田事務所 Yoneda Office Co., Ltd. | strategic | 856.5K | ¥326 | +107.1% | ¥279M ($1.8M) |
| 2022-07-26 | SELL | negotiated | 米田 光宏 Mitsuhiro Yoneda | activist | 1.4M | ¥326 | -107.1% | ¥238K ($2K) |
| 2022-07-26 | SELL | negotiated | 米田 光宏 Mitsuhiro Yoneda | activist | 1.5M | ¥326 | -107.1% | ¥81M ($522K) |
| 2022-07-26 | SELL | negotiated | 米田 寿子 Hisako Yoneda | strategic | 4.5K | ¥326 | -107.1% | ¥28M ($181K) |
| 2022-02-21 | SELL | unknown | 株式会社SBI証券 SBI SECURITIES Co.,Ltd. | other | 505.7K | ¥266 | -153.8% | ¥918K ($6K) |
| 2021-09-07 | SELL | unknown | レオス・キャピタルワークス株式会社 RHEOS CAPITAL WORKS Inc. | passive | 0 | ¥313 | -115.7% | ¥27M ($171K) |
| 2021-09-07 | BUY | unknown | 株式会社SBI証券 SBI SECURITIES Co.,Ltd. | other | 505.7K | ¥313 | +115.7% | ¥149M ($964K) |
| 2021-06-07 | SELL | unknown | レオス・キャピタルワークス株式会社 RHEOS CAPITAL WORKS Inc. | passive | 84.3K | ¥346 | -95.1% | ¥296K ($2K) |
| 2021-06-07 | BUY | unknown | 株式会社SBI証券 SBI SECURITIES Co.,Ltd. | other | 550.9K | ¥346 | +95.1% | ¥180M ($1.2M) |
| 2021-05-12 | BUY | unknown | レオス・キャピタルワークス株式会社 RHEOS CAPITAL WORKS Inc. | passive | 84.3K | ¥295 | +128.8% | ¥25M ($160K) |
| 2021-05-12 | BUY | unknown | 株式会社SBI証券 SBI SECURITIES Co.,Ltd. | other | 644.1K | ¥295 | +128.8% | ¥176M ($1.1M) |
| 2021-04-14 | SELL | unknown | 渡邉 英助 Eisuke Watanabe | strategic | 349.0K | ¥309 | -118.5% | ¥29M ($185K) |
| 2021-04-14 | BUY | unknown | 渡邉 英助 Eisuke Watanabe | strategic | 349.0K | ¥309 | +118.5% | ¥29M ($185K) |
| 2021-04-01 | SELL | unknown | レオス・キャピタルワークス株式会社 RHEOS CAPITAL WORKS Inc. | passive | 84.3K | ¥313 | -115.7% | ¥7M ($44K) |
| 2021-04-01 | SELL | unknown | 株式会社SBI証券 SBI SECURITIES Co.,Ltd. | other | 786.6K | ¥313 | -115.7% | ¥21M ($137K) |
Showing the 50 most recent of 51 filings.
Every trade listed above is disclosed in EDINET large-shareholding (5%+) reports, filed with the Financial Services Agency (Japan). View the original EDINET filings for Tsunagu Group Holdings, Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.