Who has been buying Kandenko Co.,Ltd. stock?

14 distinct investors have filed 6 disclosed large-shareholding filings in Kandenko Co.,Ltd. (1942), most recently on 2026-03-27. 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 Kandenko Co.,Ltd. have?

Kandenko Co.,Ltd. has 6 buy-side and 15 sell-side disclosures on record, covering ¥2.6B ($16.8M) in total reported value, spanning 2021-03-18 to 2026-03-27.

Where does StockDrifts get Kandenko 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.

Kandenko Co.,Ltd. 1942

Company

株式会社関電工Kandenko Co.,Ltd.

Investors

Buys

Total Value

¥2.6B ($16.8M)

Avg Return

+422.71%

Last Filing

2026-03-27

Kandenko Co.,Ltd. (1942) has 6 disclosed large-shareholding filings and 15 disclosed disposals on record, filed by 14 distinct investors. Together those filings cover ¥2.6B ($16.8M) in reported transaction value. The earliest filing StockDrifts holds for Kandenko Co.,Ltd. is dated 2021-03-18; the most recent is 2026-03-27. 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 +422.71%, 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
2026-03-27	BUY	unknown	東電タウンプランニング株式会社	corporate	513.0K	¥6,216	+1.2%	¥3.1B ($20.3M)
2026-03-27	BUY	unknown	東京パワーテクノロジー株式会社	corporate	354.5K	¥6,216	+1.2%	¥2.2B ($14.0M)
2026-03-27	BUY	unknown	東電不動産株式会社	corporate	820.0K	¥6,216	+1.2%	¥5.0B ($32.5M)
2026-03-27	SELL	unknown	東京電力パワーグリッド株式会社	other	68.6M	¥6,216	+1.2%	¥421.1B ($2.7B)
2026-03-27	BUY	unknown	東電タウンプランニング株式会社	corporate	513.0K	¥6,216	+1.2%	¥3.1B ($20.3M)
2026-03-27	BUY	unknown	東京パワーテクノロジー株式会社	corporate	354.5K	¥6,216	+1.2%	¥2.2B ($14.0M)
2026-03-27	BUY	unknown	東電不動産株式会社	corporate	820.0K	¥6,216	+1.2%	¥5.0B ($32.5M)
2026-03-27	SELL	unknown	東京電力パワーグリッド株式会社	other	68.6M	¥6,216	+1.2%	¥421.1B ($2.7B)
2026-02-24	BUY	unknown	東電タウンプランニング株式会社	corporate	513.0K	¥6,617	+7.2%	¥3.1B ($20.3M)
2026-02-24	BUY	unknown	東京パワーテクノロジー株式会社	corporate	354.5K	¥6,617	+7.2%	¥2.2B ($14.0M)
2026-02-24	BUY	unknown	東電不動産株式会社	corporate	820.0K	¥6,617	+7.2%	¥5.0B ($32.5M)
2026-02-24	SELL	unknown	東京電力パワーグリッド株式会社	other	71.3M	¥6,617	+7.2%	¥437.7B ($2.8B)
2026-02-24	BUY	unknown	東電タウンプランニング株式会社	corporate	513.0K	¥6,617	+7.2%	¥3.1B ($20.3M)
2026-02-24	BUY	unknown	東京パワーテクノロジー株式会社	corporate	354.5K	¥6,617	+7.2%	¥2.2B ($14.0M)
2026-02-24	BUY	unknown	東電不動産株式会社	corporate	820.0K	¥6,617	+7.2%	¥5.0B ($32.5M)
2026-02-24	SELL	unknown	東京電力パワーグリッド株式会社	other	71.3M	¥6,617	+7.2%	¥437.7B ($2.8B)
2026-02-24	BUY	unknown	東電タウンプランニング株式会社	corporate	513.0K	¥6,617	+7.2%	¥3.1B ($20.3M)
2026-02-24	BUY	unknown	東京パワーテクノロジー株式会社	corporate	354.5K	¥6,617	+7.2%	¥2.2B ($14.0M)
2026-02-24	BUY	unknown	東電不動産株式会社	corporate	820.0K	¥6,617	+7.2%	¥5.0B ($32.5M)
2026-02-24	SELL	unknown	東京電力パワーグリッド株式会社	other	71.3M	¥6,617	+7.2%	¥437.7B ($2.8B)
2026-02-09	BUY	unknown	東電タウンプランニング株式会社	corporate	513.0K	¥5,972	-2.8%	¥3.1B ($20.3M)
2026-02-09	BUY	unknown	東京パワーテクノロジー株式会社	corporate	354.5K	¥5,972	-2.8%	¥2.2B ($14.0M)
2026-02-09	BUY	unknown	東電タウンプランニング株式会社	corporate	513.0K	¥5,972	-2.8%	¥3.1B ($20.3M)
2026-02-09	BUY	unknown	東京パワーテクノロジー株式会社	corporate	354.5K	¥5,972	-2.8%	¥2.2B ($14.0M)
2026-02-09	BUY	unknown	東電不動産株式会社	corporate	820.0K	¥5,972	-2.8%	¥5.0B ($32.5M)
2026-02-09	SELL	unknown	東京電力パワーグリッド株式会社	other	89.6M	¥5,972	-2.8%	¥549.8B ($3.5B)
2026-02-09	BUY	unknown	東電タウンプランニング株式会社	corporate	513.0K	¥5,972	-2.8%	¥3.1B ($20.3M)
2026-02-09	BUY	unknown	東京パワーテクノロジー株式会社	corporate	354.5K	¥5,972	-2.8%	¥2.2B ($14.0M)
2026-02-09	BUY	unknown	東電不動産株式会社	corporate	820.0K	¥5,972	-2.8%	¥5.0B ($32.5M)
2026-02-09	SELL	unknown	東京電力パワーグリッド株式会社	other	89.6M	¥5,972	-2.8%	¥549.8B ($3.5B)
2026-02-09	BUY	unknown	東電不動産株式会社	corporate	820.0K	¥5,972	-2.8%	¥5.0B ($32.5M)
2026-02-09	SELL	unknown	東京電力パワーグリッド株式会社	other	89.6M	¥5,972	-2.8%	¥549.8B ($3.5B)
2025-07-22	SELL	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	3.9M	¥3,464	-77.2%	¥4.4B ($28.4M)
2025-07-22	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	4.1M	¥3,464	-77.2%	¥356M ($2.3M)
2025-07-22	SELL	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	412.3K	¥3,464	-77.2%	¥284.4B ($1.8B)
2024-06-20	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	1.2M	¥1,655	+270.9%	¥2.0B ($13.2M)
2024-06-20	BUY	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	5.1M	¥1,655	+270.9%	¥8.5B ($55.0M)
2024-06-20	BUY	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	4.1M	¥1,655	+270.9%	¥6.9B ($44.3M)
2021-04-07	BUY	Market Buy	みずほインターナショナル Mizuho International plc	unknown	0	¥956	+542.1%	-
2021-04-07	SELL	Market Buy	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.8M	¥956	-542.1%	¥432M ($2.8M)
2021-04-07	BUY	Market Buy	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	34.4K	¥956	+542.1%	¥530M ($3.4M)
2021-04-07	BUY	Market Buy	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	4.1M	¥956	+542.1%	¥98M ($633K)
2021-04-06	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	6.6M	¥830.579	+639.1%	¥34M ($220K)
2021-04-06	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	8.0K	¥830.579	-639.1%	¥62M ($402K)
2021-04-06	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	307.4K	¥830.579	-639.1%	¥2.7B ($17.4M)
2021-03-18	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	7.8M	¥846.503	-625.2%	¥747M ($4.8M)

Frequently asked questions

Who has been buying Kandenko Co.,Ltd. stock?: 14 distinct investors have filed 6 disclosed large-shareholding filings in Kandenko Co.,Ltd. (1942), most recently on 2026-03-27. 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 Kandenko Co.,Ltd. have?: Kandenko Co.,Ltd. has 6 buy-side and 15 sell-side disclosures on record, covering ¥2.6B ($16.8M) in total reported value, spanning 2021-03-18 to 2026-03-27.
Where does StockDrifts get Kandenko 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 Kandenko Co.,Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.