StockDriftsStockDriftsCrowdWorks Inc. (3900) has 20 disclosed large-shareholding filings and 20 disclosed disposals on record, filed by 11 distinct investors. Together those filings cover ¥15.1B ($97.6M) in reported transaction value. The earliest filing StockDrifts holds for CrowdWorks Inc. is dated 2021-03-22; the most recent is 2026-02-27. 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 -48.83%, measured from each filing date to the latest available close.
| Date | Type | Source | Insider | Purpose | Shares | Price at filing | Return | Value |
|---|---|---|---|---|---|---|---|---|
| 2026-05-21 | SELL | 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 | 580.6K | ¥570 | -5.4% | ¥121M ($780K) |
| 2026-05-19 | BUY | Market Buy | 牧 寛之 Maki Hiroyuki | activist | 952.3K | ¥582 | +3.3% | ¥554M ($3.6M) |
| 2026-02-27 | BUY | Market Buy | 牧 寛之 Maki Hiroyuki | activist | 952.3K | ¥672 | -2.8% | ¥640M ($4.1M) |
| 2026-02-20 | BUY | Market Buy | 牧 寛之 Maki Hiroyuki | activist | 952.3K | ¥602 | +8.5% | ¥953K ($6K) |
| 2026-02-20 | SELL | Market Buy | 牧 寛之 Maki Hiroyuki | activist | 952.3K | ¥602 | -8.5% | ¥953K ($6K) |
| 2025-11-21 | BUY | Market Buy | 牧 寛之 Maki Hiroyuki | activist | 952.3K | ¥813 | -19.7% | ¥774M ($5.0M) |
| 2025-11-17 | BUY | Market Buy | 牧 寛之 Maki Hiroyuki | passive | 952.3K | ¥799 | -18.3% | ¥761M ($4.9M) |
| 2025-10-01 | SELL | unknown | 吉田 真穂 Maho Yoshida | activist | 90.0K | ¥884 | +26.1% | ¥3M ($18K) |
| 2025-10-01 | SELL | unknown | 吉田 浩一郎 Koichiro Yoshida | activist | 3.9M | ¥884 | +26.1% | ¥53M ($342K) |
| 2025-09-22 | SELL | Market Buy | グランジャー・ピーク・グローバル・アドバイザーズ・エルエルシー(Grandeur Peak Global Advisors, LLC) Grandeur Peak Global Advisors, LLC | passive | 629.0K | ¥963 | +32.2% | ¥158M ($1.0M) |
| 2025-06-05 | 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 | 792.0K | ¥1,046 | -37.6% | ¥828M ($5.3M) |
| 2025-01-08 | SELL | unknown | ベイリー・ギフォード・アンド・カンパニー(Baillie Gifford & Co) Baillie Gifford & Co | other | 684.7K | ¥1,383 | +52.8% | ¥238M ($1.5M) |
| 2024-06-07 | SELL | unknown | アセットマネジメントOne株式会社 Asset Management One Co., Ltd. | other | 622.6K | ¥928 | +29.6% | ¥273M ($1.8M) |
| 2024-05-22 | SELL | unknown | アセットマネジメントOne株式会社 Asset Management One Co., Ltd. | other | 917.2K | ¥1,010 | +35.4% | ¥392M ($2.5M) |
| 2024-05-09 | BUY | unknown | みずほ証券 株式会社 Mizuho Securities Co., Ltd. | other | 8.0K | ¥1,410 | -53.7% | ¥1.1B ($6.8M) |
| 2024-05-09 | BUY | unknown | アセットマネジメントOne株式会社 Asset Management One Co., Ltd. | other | 1.3M | ¥1,410 | -53.7% | ¥1.8B ($11.7M) |
| 2024-05-09 | SELL | unknown | ベイリー・ギフォード・オーバーシーズ・リミテッド Baillie Gifford Overseas Limited | other | 0 | ¥1,410 | +53.7% | ¥33M ($214K) |
| 2024-05-09 | BUY | unknown | ベイリー・ギフォード・アンド・カンパニー Baillie Gifford & Co | other | 853.3K | ¥1,410 | -53.7% | ¥1.2B ($7.7M) |
| 2023-11-27 | BUY | unknown | アセットマネジメントOne株式会社 Asset Management One Co., Ltd. | other | 1.4M | ¥1,193 | -45.3% | ¥1.7B ($10.9M) |
| 2023-11-27 | SELL | unknown | みずほ証券 株式会社 Mizuho Securities Co., Ltd. | other | 32.8K | ¥1,193 | +45.3% | ¥81M ($526K) |
| 2023-08-08 | BUY | Market Buy | グランジャー・ピーク・グローバル・アドバイザーズ・エルエルシー(Grandeur Peak Global Advisors, LLC) Grandeur Peak Global Advisors, LLC | passive | 777.9K | ¥1,271 | -48.6% | ¥989M ($6.4M) |
| 2023-06-23 | BUY | Market Buy | アセットマネジメントOne株式会社 Asset Management One Co., Ltd. | other | 1.5M | ¥1,317 | -50.4% | ¥163M ($1.1M) |
| 2023-06-23 | BUY | Market Buy | みずほ証券 株式会社 Mizuho Securities Co., Ltd. | other | 101.3K | ¥1,317 | -50.4% | ¥88M ($566K) |
| 2023-06-22 | SELL | Market Buy | クープランド・カーディフ・アセット・マネジメント・エルエルピー(Coupland Cardiff Asset Management LLP) Coupland Cardiff Asset Management LLP | passive | 609.5K | ¥1,354 | +51.8% | ¥234M ($1.5M) |
| 2023-06-09 | SELL | Market Buy | クープランド・カーディフ・アセット・マネジメント・エルエルピー(Coupland Cardiff Asset Management LLP) Coupland Cardiff Asset Management LLP | passive | 782.4K | ¥1,392 | +53.1% | ¥221M ($1.4M) |
| 2023-06-07 | BUY | unknown | アセットマネジメントOne株式会社 Asset Management One Co., Ltd. | other | 1.4M | ¥1,507 | -56.7% | ¥247M ($1.6M) |
| 2023-06-07 | SELL | unknown | みずほ証券 株式会社 Mizuho Securities Co., Ltd. | other | 33.6K | ¥1,507 | +56.7% | ¥105M ($676K) |
| 2023-05-24 | SELL | Market Buy | クープランド・カーディフ・アセット・マネジメント・エルエルピー(Coupland Cardiff Asset Management LLP) Coupland Cardiff Asset Management LLP | passive | 941.6K | ¥1,499 | +56.4% | ¥248M ($1.6M) |
| 2023-03-07 | BUY | unknown | みずほ証券 株式会社 Mizuho Securities Co., Ltd. | other | 102.5K | ¥1,834 | -64.4% | ¥188M ($1.2M) |
| 2023-03-07 | SELL | unknown | アセットマネジメントOneインターナショナル Asset Management One International Ltd. | other | 14.0K | ¥1,834 | +64.4% | ¥8M ($54K) |
| 2023-03-07 | BUY | unknown | アセットマネジメントOne株式会社 Asset Management One Co., Ltd. | other | 1.2M | ¥1,834 | -64.4% | ¥2.2B ($14.3M) |
| 2022-09-07 | BUY | unknown | アセットマネジメントOneインターナショナル Asset Management One International Ltd. | other | 18.6K | ¥1,423 | -54.1% | ¥26M ($171K) |
| 2022-09-07 | BUY | unknown | アセットマネジメントOne株式会社 Asset Management One Co., Ltd. | other | 1.3M | ¥1,423 | -54.1% | ¥348M ($2.2M) |
| 2022-09-07 | BUY | unknown | みずほ証券 株式会社 Mizuho Securities Co., Ltd. | other | 7.5K | ¥1,423 | -54.1% | ¥1.0B ($6.6M) |
| 2022-02-22 | BUY | Market Buy | アセットマネジメントOneインターナショナル Asset Management One International Ltd. | other | 18.6K | ¥1,040 | -37.2% | ¥19M ($125K) |
| 2022-02-22 | BUY | Market Buy | アセットマネジメントOne株式会社 Asset Management One Co., Ltd. | other | 1.1M | ¥1,040 | -37.2% | ¥1.1B ($7.1M) |
| 2022-02-22 | BUY | Market Buy | みずほ証券 株式会社 Mizuho Securities Co., Ltd. | other | 44.8K | ¥1,040 | -37.2% | ¥5M ($31K) |
| 2022-02-21 | SELL | unknown | ベイリー・ギフォード・オーバーシーズ・リミテッド Baillie Gifford Overseas Limited | other | 22.6K | ¥1,058 | +38.3% | ¥18M ($115K) |
| 2022-02-21 | BUY | unknown | ベイリー・ギフォード・アンド・カンパニー Baillie Gifford & Co | other | 966.9K | ¥1,058 | -38.3% | ¥1.0B ($6.5M) |
| 2022-02-07 | SELL | Market Buy | クープランド・カーディフ・アセット・マネジメント・エルエルピー(Coupland Cardiff Asset Management LLP) Coupland Cardiff Asset Management LLP | passive | 1.1M | ¥874 | +25.3% | ¥143M ($921K) |
| 2022-02-02 | SELL | unknown | ベイリー・ギフォード・オーバーシーズ・リミテッド Baillie Gifford Overseas Limited | other | 39.4K | ¥954 | +31.6% | ¥10M ($66K) |
| 2022-02-02 | BUY | unknown | ベイリー・ギフォード・アンド・カンパニー Baillie Gifford & Co | other | 1.2M | ¥954 | -31.6% | ¥1.2B ($7.5M) |
| 2021-09-07 | SELL | unknown | アセットマネジメントOneインターナショナル Asset Management One International Ltd. | other | 18.6K | ¥1,883 | +65.3% | ¥43M ($278K) |
| 2021-09-07 | BUY | unknown | アセットマネジメントOne株式会社 Asset Management One Co., Ltd. | other | 1.3M | ¥1,883 | -65.3% | ¥2.4B ($15.2M) |
| 2021-09-07 | SELL | unknown | みずほ証券 株式会社 Mizuho Securities Co., Ltd. | other | 40.1K | ¥1,883 | +65.3% | ¥86M ($556K) |
| 2021-03-22 | BUY | unknown | アセットマネジメントOneインターナショナル Asset Management One International Ltd. | other | 40.9K | ¥1,769.391 | -63.1% | ¥8M ($52K) |
| 2021-03-22 | BUY | unknown | アセットマネジメントOne株式会社 Asset Management One Co., Ltd. | other | 1.3M | ¥1,769.391 | -63.1% | ¥280M ($1.8M) |
| 2021-03-22 | SELL | unknown | みずほ証券 株式会社 Mizuho Securities Co., Ltd. | other | 85.8K | ¥1,769.391 | +63.1% | ¥119M ($765K) |
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 CrowdWorks Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.