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Mitsubishi Kakoki Kaisha, Ltd. 6331

Company
三菱化工機株式会社Mitsubishi Kakoki Kaisha, Ltd.
Investors
7
Buys
11
Total Value
¥688M ($4.4M)
Avg Return
+168.59%
Last Filing
2026-03-03

Mitsubishi Kakoki Kaisha, Ltd. (6331) has 11 disclosed large-shareholding filings and 9 disclosed disposals on record, filed by 7 distinct investors. Together those filings cover ¥688M ($4.4M) in reported transaction value. The earliest filing StockDrifts holds for Mitsubishi Kakoki Kaisha, Ltd. is dated 2023-01-27; the most recent is 2026-03-03. 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 +168.59%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-08-07SELLunknown
野村アセットマネジメント株式会社
other993.5K¥3,215-2.2%¥61M ($394K)
2026-08-07SELLunknown
ノムラ インターナショナル ピーエルシー
NOMURA INTERNATIONAL PLC
other91.9K¥3,215-2.2%¥595M ($3.8M)
2026-08-07SELLunknown
野村證券株式会社
other5.6K¥3,215-2.2%¥145M ($936K)
2026-07-07BUYMarket Buy
キャピタル・リサーチ・アンド・マネージメント・カンパニー(Capital Research and Management Company)
Capital Research and Management Company
passive1.2M¥3,880-16.1%¥4.7B ($30.4M)
2026-03-03SELLunknown
野村アセットマネジメント株式会社
other1.0M¥3,485+12.6%¥3.1B ($19.9M)
2026-03-03BUYunknown
ノムラ インターナショナル ピーエルシー
NOMURA INTERNATIONAL PLC
other277.9K¥3,485+12.6%¥846M ($5.5M)
2026-03-03BUYunknown
野村證券株式会社
other49.5K¥3,485+12.6%¥151M ($972K)
2025-04-21BUYunknown
野村アセットマネジメント株式会社
Nomura Asset Management Co., Ltd.
other1.3M¥1,216+150.4%¥6M ($37K)
2025-04-21SELLunknown
野村證券株式会社
Nomura Securities Co.,Ltd.
other15.1K¥1,216-150.4%¥26.6B ($171.4M)
2025-04-21BUYunknown
ノムラ インターナショナル ピーエルシー
NOMURA INTERNATIONAL PLC
other5.0K¥1,216+150.4%¥580M ($3.7M)
2025-04-07SELLunknown
野村アセットマネジメント株式会社
Nomura Asset Management Co., Ltd.
other1.3M¥1,055-188.6%¥58M ($372K)
2025-04-07BUYunknown
ノムラ インターナショナル ピーエルシー
NOMURA INTERNATIONAL PLC
other-2.5K¥1,055+188.6%¥3M ($16K)
2025-04-07SELLunknown
野村證券株式会社
Nomura Securities Co.,Ltd.
other232.1K¥1,055-188.6%¥63M ($404K)
2025-02-21BUYunknown
野村アセットマネジメント株式会社
Nomura Asset Management Co., Ltd.
other466.5K¥1,258.33+142.0%¥2M ($13K)
2025-02-21SELLunknown
ノムラ インターナショナル ピーエルシー
NOMURA INTERNATIONAL PLC
other-1.3K¥1,258.33-142.0%¥107M ($687K)
2025-02-21BUYunknown
野村證券株式会社
Nomura Securities Co.,Ltd.
other97.1K¥1,258.33+142.0%¥84M ($540K)
2025-02-06BUYMarket Buy
野村アセットマネジメント株式会社
Nomura Asset Management Co., Ltd.
other464.4K¥1,273.33+139.1%¥34M ($221K)
2025-02-06BUYMarket Buy
ノムラ インターナショナル ピーエルシー
NOMURA INTERNATIONAL PLC
other83.5K¥1,273.33+139.1%¥113M ($728K)
2025-02-06SELLMarket Buy
野村證券株式会社
Nomura Securities Co.,Ltd.
other30.5K¥1,273.33-139.1%¥504M ($3.3M)
2024-11-22BUYunknown
野村アセットマネジメント株式会社
Nomura Asset Management Co., Ltd.
other437.4K¥1,088.33+179.8%¥476M ($3.1M)
2024-11-22BUYunknown
ノムラ インターナショナル ピーエルシー
NOMURA INTERNATIONAL PLC
other-5.5K¥1,088.33+179.8%-
2024-11-22BUYunknown
野村證券株式会社
Nomura Securities Co.,Ltd.
other34.7K¥1,088.33+179.8%¥38M ($244K)
2023-06-05BUYnegotiated
三菱UFJ国際投信株式会社
Mitsubishi UFJ Financial Group Inc.
passive38.2K¥838+263.4%¥7M ($47K)
2023-06-05SELLnegotiated
三菱UFJ信託銀行株式会社
Mitsubishi UFJ Financial Group Inc.
passive89.6K¥838-263.4%¥44M ($287K)
2023-06-05SELLnegotiated
株式会社三菱UFJ銀行
Mitsubishi UFJ Financial Group Inc.
strategic168.2K¥838-263.4%¥56M ($364K)
2023-01-27SELLunknown
三菱重工業株式会社
Mitsubishi Heavy Industries, Ltd.
other337.0K¥720.67-322.5%¥57M ($368K)

Frequently asked questions

Who has been buying Mitsubishi Kakoki Kaisha, Ltd. stock?
7 distinct investors have filed 11 disclosed large-shareholding filings in Mitsubishi Kakoki Kaisha, Ltd. (6331), most recently on 2026-03-03. Each filer, their role, the number of shares and the price at filing are listed in the table on this page.
How many insider filings does Mitsubishi Kakoki Kaisha, Ltd. have?
Mitsubishi Kakoki Kaisha, Ltd. has 11 buy-side and 9 sell-side disclosures on record, covering ¥688M ($4.4M) in total reported value, spanning 2023-01-27 to 2026-03-03.
Where does StockDrifts get Mitsubishi Kakoki Kaisha, Ltd. insider data?
From EDINET large-shareholding (5%+) reports — the official filing system run by the Financial Services Agency (Japan). StockDrifts parses each disclosure and matches it to daily price history; the original filings remain available directly from EDINET.
Do insider buys in Japanese stocks predict returns?
Not uniformly. StockDrifts scored 101,000+ Japanese large-shareholding filings on fixed 12-month forward returns and found the predictive power concentrated in specific filer types and filing patterns rather than spread evenly across all disclosures.

Source 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 Mitsubishi Kakoki Kaisha, Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.