Who has been buying Meidensha Corporation stock?

12 distinct investors have filed 15 disclosed large-shareholding filings in Meidensha Corporation (6508), most recently on 2026-02-19. 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 Meidensha Corporation have?

Meidensha Corporation has 15 buy-side and 22 sell-side disclosures on record, covering ¥11.5B ($74.5M) in total reported value, spanning 2021-06-07 to 2026-02-19.

Where does StockDrifts get Meidensha Corporation 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.

Meidensha Corporation 6508

Company

株式会社明電舎Meidensha Corporation

Investors

Buys

Total Value

¥11.5B ($74.5M)

Avg Return

+234.19%

Last Filing

2026-02-19

Meidensha Corporation (6508) has 15 disclosed large-shareholding filings and 22 disclosed disposals on record, filed by 12 distinct investors. Together those filings cover ¥11.5B ($74.5M) in reported transaction value. The earliest filing StockDrifts holds for Meidensha Corporation is dated 2021-06-07; the most recent is 2026-02-19. 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 +234.19%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

Date	Type	Source	Insider	Purpose	Shares	Price at filing	Return	Value
2026-07-07	BUY	Market 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	passive	2.5M	¥9,290	+21.1%	¥23.4B ($150.7M)
2026-02-19	SELL	negotiated	住友電気工業株式会社 Sumitomo Electric Industries, Ltd.	strategic	2.5M	¥7,460	-7.9%	¥3.5B ($22.8M)
2025-09-19	SELL	negotiated	アモーヴァ・アセットマネジメント株式会社 Amova Asset Management Co., Ltd.	other	498.2K	¥5,940	-35.5%	¥189M ($1.2M)
2025-09-19	SELL	negotiated	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.	other	817.9K	¥5,940	-35.5%	¥1.4B ($9.2M)
2025-09-19	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	1.1M	¥5,940	+35.5%	¥6.5B ($42.2M)
2025-07-04	BUY	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	527.2K	¥5,270	+52.8%	¥384M ($2.5M)
2025-07-04	SELL	negotiated	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.	other	1.1M	¥5,270	-52.8%	¥672M ($4.3M)
2025-07-04	SELL	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	1.1M	¥5,270	-52.8%	¥2.1B ($13.5M)
2025-05-09	BUY	Market Buy	三井住友カード株式会社 Sumitomo Mitsui Card Co., Ltd.	other	100.0K	¥4,265	+88.8%	¥427M ($2.8M)
2025-05-09	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	1.8M	¥4,265	+88.8%	¥7.7B ($49.5M)
2025-05-09	SELL	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	59.1K	¥4,265	-88.8%	¥58M ($376K)
2025-05-09	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	1.7M	¥4,265	+88.8%	¥2.2B ($14.0M)
2024-11-08	BUY	Market Buy	三井住友カード株式会社 Sumitomo Mitsui Card Co., Ltd.	other	100.0K	¥4,035	+99.5%	¥404M ($2.6M)
2024-11-08	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	72.0K	¥4,035	+99.5%	¥290M ($1.9M)
2024-11-08	SELL	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	1.8M	¥4,035	-99.5%	¥1.8B ($11.5M)
2024-11-08	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	1.2M	¥4,035	+99.5%	¥3.1B ($20.3M)
2023-10-04	SELL	unknown	モンドリアン・インベストメント・パートナーズ・リミテッド(Mondrian Investment Partners Limited) Mondrian Investment Partners Limited	other	2.3M	¥2,013	-299.9%	¥944M ($6.1M)
2023-09-13	SELL	unknown	モンドリアン・インベストメント・パートナーズ・リミテッド(Mondrian Investment Partners Limited) Mondrian Investment Partners Limited	other	2.7M	¥2,203	-265.4%	¥1.0B ($6.7M)
2023-07-06	SELL	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	456.1K	¥2,037	-295.2%	¥46M ($299K)
2023-07-06	SELL	negotiated	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.	other	1.2M	¥2,037	-295.2%	¥937M ($6.0M)
2023-07-06	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	1.5M	¥2,037	+295.2%	¥3.1B ($19.7M)
2023-05-01	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	205.5K	¥1,879	+328.4%	¥26M ($166K)
2023-05-01	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	803.4K	¥1,879	+328.4%	¥1.5B ($9.5M)
2023-05-01	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	306.7K	¥1,879	+328.4%	¥576M ($3.7M)
2023-04-26	SELL	unknown	モンドリアン・インベストメント・パートナーズ・リミテッド(Mondrian Investment Partners Limited) Mondrian Investment Partners Limited	other	3.2M	¥1,814	-343.8%	¥851M ($5.5M)
2023-02-20	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.8M	¥1,914	-320.6%	¥784M ($5.1M)
2023-02-20	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	306.7K	¥1,914	+320.6%	¥587M ($3.8M)
2023-02-20	SELL	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	189.1K	¥1,914	-320.6%	¥139M ($900K)
2022-10-06	BUY	Market Buy	モンドリアン・インベストメント・パートナーズ・リミテッド(Mondrian Investment Partners Limited) Mondrian Investment Partners Limited	other	3.7M	¥2,042	+294.2%	¥939M ($6.1M)
2022-08-22	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	394.7K	¥1,996	-303.3%	¥1.2B ($8.0M)
2022-08-22	BUY	Market Buy	三井住友カード株式会社 Sumitomo Mitsui Card Co., Ltd.	other	100.0K	¥1,996	+303.3%	¥200M ($1.3M)
2022-08-22	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	72.7K	¥1,996	+303.3%	¥18M ($117K)
2022-08-22	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	2.2M	¥1,996	+303.3%	¥4.5B ($28.9M)
2022-08-09	BUY	block_purchase	モンドリアン・インベストメント・パートナーズ・リミテッド(Mondrian Investment Partners Limited) Mondrian Investment Partners Limited	other	3.2M	¥2,033	+296.0%	¥935M ($6.0M)
2022-08-09	BUY	unknown	モンドリアン・インベストメント・パートナーズ・リミテッド(Mondrian Investment Partners Limited) Mondrian Investment Partners Limited	other	3.2M	¥2,033	+296.0%	¥935M ($6.0M)
2022-07-20	BUY	Market Buy	モンドリアン・インベストメント・パートナーズ・リミテッド(Mondrian Investment Partners Limited) Mondrian Investment Partners Limited	other	2.8M	¥2,156	+273.4%	¥1.0B ($6.5M)
2022-07-07	BUY	Market Buy	三井住友カード株式会社 Sumitomo Mitsui Card Co., Ltd.	other	100.0K	¥2,026	+297.3%	¥203M ($1.3M)
2022-07-07	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	63.9K	¥2,026	+297.3%	¥129M ($835K)
2022-07-07	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	2.2M	¥2,026	+297.3%	¥4.5B ($29.3M)
2022-07-07	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	1.0M	¥2,026	-297.3%	¥987M ($6.4M)
2022-07-06	SELL	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	478.9K	¥2,037	-295.2%	¥37M ($239K)
2022-07-06	SELL	negotiated	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.	other	1.6M	¥2,037	-295.2%	¥1.1B ($6.8M)
2022-07-06	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	1.5M	¥2,037	+295.2%	¥3.1B ($19.7M)
2022-06-28	BUY	unknown	モンドリアン・インベストメント・パートナーズ・リミテッド(Mondrian Investment Partners Limited) Mondrian Investment Partners Limited	other	2.3M	¥2,011	+300.3%	¥4.6B ($29.8M)
2022-05-13	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	1.5M	¥2,350	+242.6%	¥3.5B ($22.7M)
2022-05-13	SELL	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	494.9K	¥2,350	-242.6%	¥53M ($345K)
2022-05-13	SELL	negotiated	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.	other	2.2M	¥2,350	-242.6%	¥1.0B ($6.6M)
2021-11-22	BUY	Market Buy	三井住友カード株式会社 Sumitomo Mitsui Card Co., Ltd.	other	100.0K	¥2,731	+194.8%	¥273M ($1.8M)
2021-11-22	SELL	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	62.4K	¥2,731	-194.8%	¥12M ($80K)
2021-11-22	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	2.2M	¥2,731	+194.8%	¥6.1B ($39.5M)

Showing the 50 most recent of 57 filings.

Frequently asked questions

Who has been buying Meidensha Corporation stock?: 12 distinct investors have filed 15 disclosed large-shareholding filings in Meidensha Corporation (6508), most recently on 2026-02-19. 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 Meidensha Corporation have?: Meidensha Corporation has 15 buy-side and 22 sell-side disclosures on record, covering ¥11.5B ($74.5M) in total reported value, spanning 2021-06-07 to 2026-02-19.
Where does StockDrifts get Meidensha Corporation 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 Meidensha Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.