Who has been buying TOKYO KOATSU Co., Ltd. stock?

6 distinct investors have filed 9 disclosed large-shareholding filings in TOKYO KOATSU Co., Ltd. (7139), most recently on 2025-01-30. 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 TOKYO KOATSU Co., Ltd. have?

TOKYO KOATSU Co., Ltd. has 9 buy-side and 2 sell-side disclosures on record, covering ¥1.6B ($10.5M) in total reported value, spanning 2022-04-20 to 2025-01-30.

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.

TOKYO KOATSU Co., Ltd. 7139

Company

東京高圧山崎株式会社TOKYO KOATSU Co., Ltd.

Investors

Buys

Total Value

¥1.6B ($10.5M)

Avg Return

+4.65%

Last Filing

2025-01-30

TOKYO KOATSU Co., Ltd. (7139) has 9 disclosed large-shareholding filings and 2 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥1.6B ($10.5M) in reported transaction value. The earliest filing StockDrifts holds for TOKYO KOATSU Co., Ltd. is dated 2022-04-20; the most recent is 2025-01-30. Across these filings the average return since disclosure is +4.65%, 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
2025-01-30	BUY	Market Buy	前田浩正 HIROMASA MAEDA	passive	72.9K	¥4,640	+1.3%	¥59M ($380K)
2025-01-30	SELL	Market Buy	東京マイビス株式会社 Tokyo Mybis Co., Ltd.	other	0	¥4,640	-1.3%	¥59M ($380K)
2022-07-20	BUY	negotiated	昭和電工ガスプロダクツ株式会社 SHOWA DENKO GAS PRODUCTS CO., LTD.	strategic	62.6K	¥4,532.034	+3.7%	¥284M ($1.8M)
2022-07-20	SELL	unknown	昭和電工株式会社 Showa Denko K.K.	unknown	0	¥4,532.034	-3.7%	¥284M ($1.8M)
2022-04-22	BUY	Market Buy	前田浩正 HIROMASA MAEDA	passive	60.2K	¥4,464.536	+5.3%	¥269M ($1.7M)
2022-04-22	BUY	Market Buy	東京マイビス株式会社 Tokyo Mybis Co., Ltd.	other	12.7K	¥4,464.536	+5.3%	¥57M ($365K)
2022-04-22	BUY	Market Buy	前田浩正 HIROMASA MAEDA	passive	60.2K	¥4,464.536	+5.3%	¥269M ($1.7M)
2022-04-22	BUY	Market Buy	東京マイビス株式会社 Tokyo Mybis Co., Ltd.	other	12.7K	¥4,464.536	+5.3%	¥57M ($365K)
2022-04-20	BUY	negotiated	昭和電工株式会社 Showa Denko K.K.	strategic	62.6K	¥4,464.536	+5.3%	¥279M ($1.8M)
2022-04-20	BUY	negotiated	大陽日酸株式会社 TAIYO NIPPON SANSO CORPORATION	strategic	78.9K	¥4,464.536	-	¥352M ($2.3M)
2022-04-20	BUY	unknown	日清紡ホールディングス株式会社 Nisshinbo Holdings Inc.	strategic	27.0K	¥4,464.536	+5.3%	¥121M ($778K)
2022-04-20	BUY	negotiated	大陽日酸株式会社 TAIYO NIPPON SANSO CORPORATION	strategic	78.9K	¥4,464.536	+5.3%	¥352M ($2.3M)

Frequently asked questions

Who has been buying TOKYO KOATSU Co., Ltd. stock?: 6 distinct investors have filed 9 disclosed large-shareholding filings in TOKYO KOATSU Co., Ltd. (7139), most recently on 2025-01-30. 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 TOKYO KOATSU Co., Ltd. have?: TOKYO KOATSU Co., Ltd. has 9 buy-side and 2 sell-side disclosures on record, covering ¥1.6B ($10.5M) in total reported value, spanning 2022-04-20 to 2025-01-30.
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.

More on this data

Every trade listed above comes from an official regulatory disclosure. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.