Who has been buying Teikoku Electric Mfg.Co.,Ltd. stock?

14 distinct investors have filed 19 disclosed large-shareholding filings in Teikoku Electric Mfg.Co.,Ltd. (6333), most recently on 2026-01-16. 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 Teikoku Electric Mfg.Co.,Ltd. have?

Teikoku Electric Mfg.Co.,Ltd. has 19 buy-side and 12 sell-side disclosures on record, covering ¥4.3B ($28.1M) in total reported value, spanning 2021-04-19 to 2026-01-16.

Where does StockDrifts get Teikoku Electric Mfg.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.

Teikoku Electric Mfg.Co.,Ltd. 6333

Company

株式会社帝国電機製作所Teikoku Electric Mfg.Co.,Ltd.

Investors

Buys

Total Value

¥4.3B ($28.1M)

Avg Return

+28.17%

Last Filing

2026-01-16

Teikoku Electric Mfg.Co.,Ltd. (6333) has 19 disclosed large-shareholding filings and 12 disclosed disposals on record, filed by 14 distinct investors. Together those filings cover ¥4.3B ($28.1M) in reported transaction value. The earliest filing StockDrifts holds for Teikoku Electric Mfg.Co.,Ltd. is dated 2021-04-19; the most recent is 2026-01-16. 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 +28.17%, 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
2026-06-25	BUY	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	2.9M	¥3,135	+3.2%	¥480M ($3.1M)
2026-06-23	BUY	Market Buy	フィデリティマネジメントトラストカンパニー Fidelity Management Trust Company	other	110.3K	¥3,110	+0.3%	¥58M ($373K)
2026-06-23	BUY	Market Buy	エフアイエーエムエルエルシー FIAM LLC	other	319.1K	¥3,110	+0.3%	¥168M ($1.1M)
2026-06-23	BUY	Market Buy	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	636.8K	¥3,110	+0.3%	¥394M ($2.5M)
2026-06-23	BUY	unknown	フィデリティマネジメントトラストカンパニー Fidelity Management Trust Company	other	110.3K	¥3,110	+0.3%	¥343M ($2.2M)
2026-06-23	BUY	Market Buy	エフアイエーエムエルエルシー FIAM LLC	other	366.3K	¥3,110	+0.3%	¥147M ($948K)
2026-06-23	BUY	Market Buy	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	768.6K	¥3,110	+0.3%	¥409M ($2.6M)
2026-06-09	BUY	unknown	エフアイエーエムエルエルシー FIAM LLC	other	265.5K	¥2,912	+8.0%	¥773M ($5.0M)
2026-06-09	BUY	unknown	フィデリティマネジメントトラストカンパニー Fidelity Management Trust Company	other	90.9K	¥2,912	+8.0%	¥265M ($1.7M)
2026-06-09	BUY	unknown	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	509.9K	¥2,912	+8.0%	¥1.5B ($9.6M)
2026-01-16	SELL	unknown	三菱電機モビリティ株式会社 Mitsubishi Electric Mobility Corporation	other	0	¥3,300	+12.5%	¥4.2B ($27.4M)
2025-12-23	BUY	Market Buy	三菱電機モビリティ株式会社 Mitsubishi Electric Mobility Corporation	other	1.3M	¥3,140	-8.0%	¥350M ($2.3M)
2025-12-23	BUY	unknown	三菱電機モビリティ株式会社 Mitsubishi Electric Mobility Corporation	other	1.3M	¥3,140	-8.0%	¥350M ($2.3M)
2025-09-05	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	1.2M	¥3,190	-9.5%	¥571M ($3.7M)
2025-08-25	SELL	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	2.9M	¥3,365	+14.2%	¥727M ($4.7M)
2025-08-07	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	1.1M	¥3,390	-14.8%	¥681M ($4.4M)
2025-05-22	BUY	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	866.3K	¥3,035	-4.8%	¥2.6B ($17.0M)
2025-05-09	BUY	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	410.0K	¥2,904	-0.6%	¥1.2B ($7.7M)
2025-05-09	SELL	unknown	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	459.4K	¥2,904	+0.6%	¥25M ($158K)
2025-05-09	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	8.5K	¥2,904	+0.6%	¥510M ($3.3M)
2025-03-24	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	183.3K	¥2,985	-3.3%	¥547M ($3.5M)
2025-03-24	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	467.5K	¥2,985	-3.3%	¥15M ($98K)
2025-03-24	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	410.0K	¥2,985	-3.3%	¥1.2B ($7.9M)
2025-03-14	BUY	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	3.2M	¥3,060	-5.6%	¥1.2B ($7.6M)
2025-03-07	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	410.0K	¥3,120	-7.4%	¥1.3B ($8.3M)
2025-03-07	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	463.2K	¥3,120	-7.4%	¥1.4B ($9.3M)
2025-01-14	SELL	unknown	三菱電機モビリティ株式会社 Mitsubishi Electric Mobility Corporation	other	1.3M	¥2,666	-8.3%	¥2.5B ($16.1M)
2024-12-18	BUY	unknown	三菱電機モビリティ株式会社 Mitsubishi Electric Mobility Corporation	other	2.3M	¥2,729	+5.8%	¥166M ($1.1M)
2024-12-18	BUY	unknown	三菱電機モビリティ株式会社 Mitsubishi Electric Mobility Corporation	other	2.3M	¥2,729	+5.8%	¥166M ($1.1M)
2024-12-18	SELL	unknown	三菱電機モビリティ株式会社 Mitsubishi Electric Mobility Corporation	other	1.3M	¥2,729	-5.8%	¥2.6B ($16.5M)
2024-08-01	BUY	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	3.0M	¥2,618	+10.3%	¥547M ($3.5M)
2024-07-01	BUY	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	2.8M	¥2,521	+14.6%	¥489M ($3.2M)
2024-06-04	BUY	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	2.6M	¥2,375	+21.6%	¥487M ($3.1M)
2024-04-04	SELL	unknown	三菱電機株式会社 Mitsubishi Electric Corporation	unknown	0	¥2,471	-16.9%	¥5.7B ($36.6M)
2024-04-04	BUY	negotiated	三菱電機モビリティ株式会社 Mitsubishi Electric Mobility Corporation	strategic	2.3M	¥2,471	+16.9%	¥5.6B ($36.4M)
2024-01-11	BUY	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	2.5M	¥3,065	-5.8%	¥3.8B ($24.7M)
2024-01-11	SELL	unknown	ユナイテッド・マネージャーズ・ジャパン株式会社 United Managers Japan Inc.	unknown	0	¥3,065	+5.8%	¥3.9B ($24.9M)
2022-11-21	BUY	Market Buy	ユナイテッド・マネージャーズ・ジャパン株式会社 United Managers Japan Inc.	activist	1.4M	¥2,368	+22.0%	¥286M ($1.8M)
2022-09-09	SELL	unknown	マイケル・ワン・サウザンド・ナイン・ハンドレッド・トゥエンティ・ファイブ・エルエルシー Michael 1925 LLC	passive	292.7K	¥2,025	-42.6%	¥315M ($2.0M)
2022-09-09	SELL	unknown	ニッポン・アクティブ・バリュー・ファンド NIPPON ACTIVE VALUE FUND PLC	activist	626.7K	¥2,025	-42.6%	¥145M ($935K)
2022-03-31	BUY	unknown	マイケル・ワン・サウザンド・ナイン・ハンドレッド・トゥエンティ・ファイブ・エルエルシー Michael 1925 LLC	passive	447.9K	¥1,574	+83.5%	¥167M ($1.1M)
2022-03-31	BUY	unknown	ニッポン・アクティブ・バリュー・ファンド NIPPON ACTIVE VALUE FUND PLC	activist	700.0K	¥1,574	+83.5%	¥1.1B ($7.1M)
2021-10-15	BUY	unknown	マイケル・ワン・サウザンド・ナイン・ハンドレッド・トゥエンティ・ファイブ・エルエルシー Michael 1925 LLC	passive	340.8K	¥1,467	+96.9%	¥500M ($3.2M)
2021-10-15	BUY	unknown	ニッポン・アクティブ・バリュー・ファンド NIPPON ACTIVE VALUE FUND PLC	activist	700.0K	¥1,467	+96.9%	¥1.0B ($6.6M)
2021-07-01	BUY	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	1.3M	¥1,256	+129.9%	¥262M ($1.7M)
2021-04-19	SELL	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	11.2K	¥1,379	-109.4%	¥352M ($2.3M)
2021-04-19	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	151.0K	¥1,379	+109.4%	¥3M ($18K)
2021-04-19	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	321.8K	¥1,379	-109.4%	¥25M ($164K)
2021-04-19	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	280.0K	¥1,379	+109.4%	¥386M ($2.5M)

Frequently asked questions

Who has been buying Teikoku Electric Mfg.Co.,Ltd. stock?: 14 distinct investors have filed 19 disclosed large-shareholding filings in Teikoku Electric Mfg.Co.,Ltd. (6333), most recently on 2026-01-16. 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 Teikoku Electric Mfg.Co.,Ltd. have?: Teikoku Electric Mfg.Co.,Ltd. has 19 buy-side and 12 sell-side disclosures on record, covering ¥4.3B ($28.1M) in total reported value, spanning 2021-04-19 to 2026-01-16.
Where does StockDrifts get Teikoku Electric Mfg.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 Teikoku Electric Mfg.Co.,Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.