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Meiko Electronics Co., Ltd. 6787

Company
株式会社メイコーMeiko Electronics Co., Ltd.
Investors
18
Buys
52
Total Value
¥109.9B ($708.7M)
Avg Return
+519.95%
Last Filing
2026-05-11

Meiko Electronics Co., Ltd. (6787) has 52 disclosed large-shareholding filings and 38 disclosed disposals on record, filed by 18 distinct investors. Together those filings cover ¥109.9B ($708.7M) in reported transaction value. The earliest filing StockDrifts holds for Meiko Electronics Co., Ltd. is dated 2021-03-22; the most recent is 2026-05-11. 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 +519.95%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-07-24BUYnegotiated
名屋 佑一郎
activist4.7M¥23,100-21.0%¥108.7B ($701.0M)
2026-07-24BUYunknown
有限会社ユーホー
strategic521.0K¥23,100-21.0%¥12.0B ($77.6M)
2026-07-24BUYunknown
名屋 朋子
strategic182.5K¥23,100-21.0%¥4.2B ($27.2M)
2026-07-23BUYMarket Buy
ティーティーインターナショナルアセットマネジメント・リミテッド
TT International Asset Management Ltd.
passive28.8K¥23,820-23.4%¥686M ($4.4M)
2026-07-23BUYunknown
株式会社 三井住友銀行
other377.0K¥23,820-23.4%¥9.0B ($57.9M)
2026-07-23SELLunknown
SMBC日興証券株式会社
other249.7K¥23,820+23.4%¥128M ($824K)
2026-07-23SELLMarket Buy
三井住友DSアセットマネジメント株式会社
passive491.3K¥23,820+23.4%¥6.8B ($44.1M)
2026-05-11SELLunknown
三井住友トラスト・アセットマネジメント株式会社
other762.6K¥31,500-13.0%¥7.5B ($48.5M)
2026-05-11SELLunknown
アモーヴァ・アセットマネジメント株式会社
other336.9K¥31,500-13.0%¥1.3B ($8.2M)
2026-04-22SELLunknown
アセットマネジメントOne株式会社
other707.3K¥29,330-46.3%¥12.9B ($83.2M)
2026-04-22BUYunknown
みずほ信託銀行株式会社
other307.0K¥29,330+46.3%¥9.0B ($58.1M)
2026-04-22BUYMarket Buy
みずほ証券 株式会社
other36.5K¥29,330+46.3%¥236M ($1.5M)
2026-04-22BUYunknown
株式会社みずほ銀行
strategic208.0K¥29,330+46.3%¥6.1B ($39.4M)
2026-04-22BUYMarket Buy
三井住友DSアセットマネジメント株式会社
passive776.5K¥29,330+46.3%¥22.8B ($146.9M)
2026-04-22BUYunknown
株式会社 三井住友銀行
other377.0K¥29,330+46.3%¥11.1B ($71.3M)
2026-04-22BUYunknown
SMBC日興証券株式会社
other254.5K¥29,330+46.3%¥7.5B ($48.2M)
2026-04-07BUYunknown
株式会社 三井住友銀行
other377.0K¥24,730+20.3%¥9.3B ($60.1M)
2026-04-07SELLunknown
三井住友DSアセットマネジメント株式会社
passive934.8K¥24,730-20.3%¥14.5B ($93.2M)
2026-04-06SELLnegotiated
三菱UFJアセットマネジメント株式会社
passive649.7K¥25,680-15.8%¥4.3B ($28.0M)
2026-04-06SELLnegotiated
三菱UFJ信託銀行株式会社
passive292.1K¥25,680-15.8%¥3.2B ($20.4M)
2026-04-06BUYnegotiated
株式会社三菱UFJ銀行
strategic187.8K¥25,680+15.8%¥4.8B ($31.1M)
2026-04-03BUYnegotiated
名屋 佑一郎
activist4.7M¥26,670+11.5%¥125.4B ($809.3M)
2026-04-03BUYnegotiated
名屋 朋子
strategic182.5K¥26,670+11.5%¥4.9B ($31.4M)
2026-04-03BUYnegotiated
有限会社ユーホー
strategic521.0K¥26,670+11.5%¥13.9B ($89.6M)
2026-03-23SELLunknown
アセットマネジメントOne株式会社
other1.1M¥25,860-5.7%¥31.3B ($202.2M)
2026-03-23SELLunknown
みずほ信託銀行株式会社
other307.4K¥25,860-5.7%¥8.4B ($54.2M)
2026-03-23BUYunknown
みずほ証券 株式会社
other30.6K¥25,860-5.7%¥837M ($5.4M)
2026-03-23BUYunknown
株式会社みずほ銀行
strategic208.0K¥25,860-5.7%¥5.7B ($36.7M)
2026-03-19SELLunknown
アモーヴァ・アセットマネジメント株式会社
other379.2K¥25,210-8.4%¥10.4B ($66.9M)
2026-03-19SELLunknown
三井住友トラスト・アセットマネジメント株式会社
other1.0M¥25,210-8.4%¥27.4B ($176.6M)
2026-02-20BUYMarket Buy
株式会社 三井住友銀行
other377.0K¥21,510-27.1%¥10.3B ($66.5M)
2026-02-20SELLMarket Buy
三井住友DSアセットマネジメント株式会社
passive1.5M¥21,510-27.1%¥41.5B ($267.9M)
2026-02-19SELLunknown
アモーヴァ・アセットマネジメント株式会社
other390.9K¥19,840-37.8%¥10.7B ($68.9M)
2026-02-19SELLunknown
三井住友トラスト・アセットマネジメント株式会社
other1.4M¥19,840-37.8%¥37.1B ($239.6M)
2026-02-06SELLunknown
株式会社みずほ銀行
Mizuho Bank, Ltd.
strategic2.1M¥13,140-108.1%¥1.1B ($6.8M)
2026-01-20BUYMarket Buy
株式会社 三井住友銀行
other377.0K¥9,330-193.0%¥10.3B ($66.5M)
2026-01-20SELLMarket Buy
三井住友DSアセットマネジメント株式会社
passive2.0M¥9,330-193.0%¥55.1B ($355.3M)
2025-12-03BUYMarket Buy
株式会社 三井住友銀行
other377.0K¥11,270-142.6%¥10.3B ($66.5M)
2025-12-03BUYMarket Buy
三井住友DSアセットマネジメント株式会社
passive2.3M¥11,270+142.6%¥63.9B ($412.2M)
2025-09-22BUYMarket Buy
アセットマネジメントOne株式会社
Asset Management One Co., Ltd.
other1.6M¥10,060+171.8%¥2.8B ($17.7M)
2025-09-22BUYMarket Buy
みずほ信託銀行株式会社
Mizuho Trust & Banking Co., Ltd.
other312.7K¥10,060+171.8%¥3.1B ($20.3M)
2025-09-22BUYMarket Buy
株式会社みずほ銀行
Mizuho Bank, Ltd.
strategic208.0K¥10,060+171.8%¥2.1B ($13.5M)
2025-09-19BUYunknown
アモーヴァ・アセットマネジメント株式会社
Amova Asset Management Co., Ltd.
other420.9K¥9,920+175.6%¥53M ($343K)
2025-09-19SELLunknown
三井住友トラスト・アセットマネジメント株式会社
Sumitomo Mitsui Trust Asset Management Co.,Ltd.
other1.6M¥9,920-175.6%¥585M ($3.8M)
2025-08-22BUYMarket Buy
株式会社 三井住友銀行
Sumitomo Mitsui Banking Corporation
other377.0K¥8,930+206.2%¥3.4B ($21.7M)
2025-08-22BUYMarket 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
passive2.0M¥8,930+206.2%¥2.5B ($15.9M)
2025-07-07SELLunknown
アセットマネジメントOne株式会社
Asset Management One Co., Ltd.
other1.4M¥6,820-300.9%¥18M ($118K)
2025-07-07BUYunknown
みずほ信託銀行株式会社
Mizuho Trust & Banking Co., Ltd.
other313.1K¥6,820+300.9%¥2.1B ($13.8M)
2025-07-07BUYunknown
株式会社みずほ銀行
Mizuho Bank, Ltd.
strategic208.0K¥6,820+300.9%¥1.4B ($9.2M)
2025-07-04BUYMarket Buy
日興アセットマネジメント株式会社
Nikko Asset Management Co.,Ltd.
other416.2K¥6,910+295.7%¥685M ($4.4M)

Showing the 50 most recent of 142 filings.

Frequently asked questions

Who has been buying Meiko Electronics Co., Ltd. stock?
18 distinct investors have filed 52 disclosed large-shareholding filings in Meiko Electronics Co., Ltd. (6787), most recently on 2026-05-11. 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 Meiko Electronics Co., Ltd. have?
Meiko Electronics Co., Ltd. has 52 buy-side and 38 sell-side disclosures on record, covering ¥109.9B ($708.7M) in total reported value, spanning 2021-03-22 to 2026-05-11.
Where does StockDrifts get Meiko Electronics Co., 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 Meiko Electronics Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.