Who has been buying Meiji Machine Co., Ltd. stock?

30 distinct investors have filed 16 disclosed large-shareholding filings in Meiji Machine Co., Ltd. (6334), most recently on 2025-10-16. 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 Meiji Machine Co., Ltd. have?

Meiji Machine Co., Ltd. has 16 buy-side and 26 sell-side disclosures on record, covering ¥1.3B ($8.1M) in total reported value, spanning 2021-06-25 to 2025-10-16.

Where does StockDrifts get Meiji Machine 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.

Meiji Machine Co., Ltd. 6334

Company

明治機械株式会社Meiji Machine Co., Ltd.

Investors

Buys

Total Value

¥1.3B ($8.1M)

Avg Return

+39.34%

Last Filing

2025-10-16

Meiji Machine Co., Ltd. (6334) has 16 disclosed large-shareholding filings and 26 disclosed disposals on record, filed by 30 distinct investors. Together those filings cover ¥1.3B ($8.1M) in reported transaction value. The earliest filing StockDrifts holds for Meiji Machine Co., Ltd. is dated 2021-06-25; the most recent is 2025-10-16. 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 +39.34%, 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
2026-05-26	BUY	Market Buy	株式会社アンプロモーション Ann Promotion Co.,Ltd.	passive	2.0M	¥450	+0.0%	¥54M ($348K)
2026-05-26	BUY	Market Buy	株式会社アンプロモーション Ann Promotion Co.,Ltd.	passive	1.8M	¥450	+0.0%	¥55M ($354K)
2026-05-26	BUY	Market Buy	株式会社アンプロモーション Ann Promotion Co.,Ltd.	passive	1.9M	¥450	+0.0%	¥63M ($404K)
2025-10-16	BUY	Market Buy	株式会社アンプロモーション Ann Promotion Co.,Ltd.	passive	1.6M	¥336	+19.9%	¥202M ($1.3M)
2025-10-15	BUY	Market Buy	株式会社アンプロモーション Ann Promotion Co.,Ltd.	passive	1.0M	¥329	+22.5%	¥128M ($825K)
2025-10-15	SELL	Market Buy	黒岩初美 Kuroiwa Hatsumi	passive	260.7K	¥329	-22.5%	¥165M ($1.1M)
2025-07-16	BUY	Market Buy	黒岩初美 Kuroiwa Hatsumi	passive	761.5K	¥293	+37.5%	¥38M ($246K)
2025-07-16	BUY	Market Buy	黒岩初美 Kuroiwa Hatsumi	passive	761.5K	¥293	+37.5%	¥38M ($248K)
2025-06-04	BUY	Market Buy	黒岩初美 Kuroiwa Hatsumi	passive	631.1K	¥295	+36.6%	¥186M ($1.2M)
2025-06-04	SELL	Market Buy	株式会社アンプロモーション Ann Promotion Co.,Ltd.	passive	643.3K	¥295	-36.6%	¥124M ($799K)
2025-03-07	SELL	unknown	Abalance株式会社 Abalance Corporation	strategic	3.9M	¥286	-40.9%	¥183M ($1.2M)
2024-12-16	BUY	Market Buy	株式会社アンプロモーション Ann Promotion Co.,Ltd.	passive	1.1M	¥305	+32.1%	¥58M ($377K)
2024-12-16	BUY	Market Buy	株式会社アンプロモーション Ann Promotion Co.,Ltd.	passive	1.3M	¥305	+32.1%	¥61M ($393K)
2024-12-16	SELL	Market Buy	株式会社アンプロモーション Ann Promotion Co.,Ltd.	passive	1.1M	¥305	-32.1%	¥58M ($377K)
2024-12-16	SELL	Market Buy	株式会社アンプロモーション Ann Promotion Co.,Ltd.	passive	1.3M	¥305	-32.1%	¥61M ($395K)
2024-12-16	BUY	Market Buy	株式会社アンプロモーション Ann Promotion Co.,Ltd.	passive	1.5M	¥305	+32.1%	¥35M ($227K)
2024-06-04	BUY	Market Buy	株式会社アンプロモーション Ann Promotion Co.,Ltd.	passive	1.3M	¥364	+10.7%	¥69M ($445K)
2024-04-18	BUY	Market Buy	株式会社アンプロモーション Ann Promotion Co.,Ltd.	passive	1.1M	¥344	+17.1%	¥46M ($296K)
2024-04-18	BUY	Market Buy	株式会社アンプロモーション Ann Promotion Co.,Ltd.	passive	1.1M	¥344	+17.1%	¥46M ($294K)
2024-04-17	BUY	Market Buy	株式会社アンプロモーション Ann Promotion Co.,Ltd.	passive	1.0M	¥349	+15.5%	¥43M ($275K)
2023-05-02	BUY	Market Buy	株式会社アンプロモーション Ann Promotion Co.,Ltd.	passive	742.3K	¥509	-20.8%	¥64M ($416K)
2023-05-02	BUY	Market Buy	株式会社アンプロモーション Ann Promotion Co.,Ltd.	passive	894.6K	¥509	-20.8%	¥78M ($502K)
2023-05-02	BUY	Market Buy	株式会社アンプロモーション Ann Promotion Co.,Ltd.	passive	742.3K	¥509	-20.8%	¥64M ($416K)
2023-05-02	BUY	Market Buy	株式会社アンプロモーション Ann Promotion Co.,Ltd.	passive	894.6K	¥509	-20.8%	¥78M ($502K)
2023-04-20	BUY	Market Buy	株式会社アンプロモーション Ann Promotion Co.,Ltd.	passive	895.0K	¥576	-30.0%	¥161M ($1.0M)
2023-04-20	BUY	Market Buy	株式会社アンプロモーション Ann Promotion Co.,Ltd.	passive	615.6K	¥576	-30.0%	¥355M ($2.3M)
2023-01-30	BUY	Market Buy	株式会社アンプロモーション Ann Promotion Co.,Ltd.	passive	615.6K	¥281	+43.4%	¥173M ($1.1M)
2022-03-30	SELL	Market Buy	髙山正大 Masahiro Takayama	passive	19.2K	¥203	-98.5%	¥24M ($154K)
2022-03-30	SELL	Market Buy	髙山芳之 Yoshiyuki Takayama	passive	19.2K	¥203	-98.5%	¥24M ($154K)
2022-03-30	SELL	Market Buy	株式会社セコニック Sekonic Co., Ltd.	passive	60.6K	¥203	-98.5%	¥76M ($488K)
2022-03-30	SELL	Market Buy	エヌ・ティ・ティ・システム開発株式会社 NTT System Development Co., Ltd.	passive	63.9K	¥203	-98.5%	¥80M ($515K)
2022-03-30	BUY	Market Buy	TCSビジネスアソシエ株式会社 TCS Business Associe Co., Ltd.	passive	4.9K	¥203	+98.5%	¥85M ($551K)
2022-03-30	BUY	Market Buy	インターネットウェア株式会社 Internetware Co., Ltd.	passive	69.1K	¥203	+98.5%	¥13M ($85K)
2022-03-30	SELL	Market Buy	ハイテクシステム株式会社 High Tech System Co., Ltd.	passive	5.3K	¥203	-98.5%	¥6M ($42K)
2022-03-30	SELL	Market Buy	シグマトロン株式会社 Sigmatron Co., Ltd.	passive	31.6K	¥203	-98.5%	¥40M ($255K)
2022-03-30	SELL	Market Buy	コンピュートロン株式会社 Computerron Co., Ltd.	passive	27.3K	¥203	-98.5%	¥34M ($220K)
2022-03-30	SELL	Market Buy	豊栄実業株式会社 Toyoei Jitsugyo Co., Ltd.	passive	6.4K	¥203	-98.5%	¥8M ($51K)
2022-03-30	SELL	Market Buy	株式会社サイプレス・ソリューションズ Cypress Solutions Co., Ltd.	passive	5.4K	¥203	-98.5%	¥7M ($43K)
2022-03-30	SELL	Market Buy	ニッポー株式会社 Nippo Co., Ltd.	passive	5.5K	¥203	-98.5%	¥7M ($43K)
2022-03-30	SELL	Market Buy	株式会社テクノ・セブン Techno Seven Co., Ltd.	passive	56.3K	¥203	-98.5%	¥71M ($455K)
2022-03-30	SELL	Market Buy	アンドール株式会社 Andor Co., Ltd.	passive	14.1K	¥203	-98.5%	¥18M ($113K)
2022-03-30	SELL	Market Buy	株式会社アイレックス IREX Co., Ltd.	passive	7.7K	¥203	-98.5%	¥9M ($61K)
2022-03-30	SELL	Market Buy	株式会社明成商会 Meisei Shokai Co., Ltd.	passive	7.6K	¥203	-98.5%	¥9M ($61K)
2022-03-30	SELL	Market Buy	北部通信工業株式会社 Northern Tsushin Kogyo Co., Ltd.	passive	6.5K	¥203	-98.5%	¥8M ($52K)
2022-03-30	SELL	Market Buy	金融システムソリューションズ株式会社 Financial System Solutions Co., Ltd.	passive	12.8K	¥203	-98.5%	¥16M ($103K)
2022-03-30	SELL	Market Buy	コムシス株式会社 COMSYS Co., Ltd.	passive	9.5K	¥203	-98.5%	¥12M ($78K)
2022-03-30	SELL	Market Buy	ユニシステム株式会社 Unisystem Co., Ltd.	passive	9.3K	¥203	-98.5%	¥12M ($76K)
2022-03-30	SELL	Market Buy	東京コンピュータサービス株式会社 Tokyo Computer Service Co., Ltd.	passive	10.1K	¥203	-98.5%	¥12M ($81K)
2022-03-30	BUY	unknown	Abalance株式会社 Abalance Corporation	strategic	4.6M	¥203	+98.5%	¥925M ($6.0M)
2022-03-30	BUY	Market Buy	日本コンベヤ株式会社 Nippon Conveyor Co., Ltd.	activist	1.9M	¥203	+98.5%	¥391M ($2.5M)

Showing the 50 most recent of 155 filings.

Frequently asked questions

Who has been buying Meiji Machine Co., Ltd. stock?: 30 distinct investors have filed 16 disclosed large-shareholding filings in Meiji Machine Co., Ltd. (6334), most recently on 2025-10-16. 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 Meiji Machine Co., Ltd. have?: Meiji Machine Co., Ltd. has 16 buy-side and 26 sell-side disclosures on record, covering ¥1.3B ($8.1M) in total reported value, spanning 2021-06-25 to 2025-10-16.
Where does StockDrifts get Meiji Machine 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 Meiji Machine Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.