Who has been buying Tsukishima Kikai Co., Ltd. stock?

10 distinct investors have filed 5 disclosed large-shareholding filings in Tsukishima Kikai Co., Ltd. (6332), most recently on 2025-10-07. 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 Tsukishima Kikai Co., Ltd. have?

Tsukishima Kikai Co., Ltd. has 5 buy-side and 7 sell-side disclosures on record, covering ¥7.2B ($46.2M) in total reported value, spanning 2022-12-19 to 2025-10-07.

Where does StockDrifts get Tsukishima Kikai 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.

Tsukishima Kikai Co., Ltd. 6332

Company

月島機械株式会社Tsukishima Kikai Co., Ltd.

Investors

Buys

Total Value

¥7.2B ($46.2M)

Avg Return

+103.68%

Last Filing

2025-10-07

Tsukishima Kikai Co., Ltd. (6332) has 5 disclosed large-shareholding filings and 7 disclosed disposals on record, filed by 10 distinct investors. Together those filings cover ¥7.2B ($46.2M) in reported transaction value. The earliest filing StockDrifts holds for Tsukishima Kikai Co., Ltd. is dated 2022-12-19; the most recent is 2025-10-07. 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 +103.68%, 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
2025-10-07	SELL	unknown	株式会社日本製鋼所 THE JAPAN STEEL WORKS, LTD.	other	1.9M	¥2,555	-12.1%	¥1.1B ($7.3M)
2025-10-02	SELL	Market Buy	スパークス・アセット・マネジメント株式会社 SPARX Asset Management Co., Ltd.	passive	1.6M	¥2,844	-0.7%	¥1.7B ($10.9M)
2025-05-28	BUY	unknown	野村絢 Aya Nomura (Murakami family)	activist	1.8M	¥2,000	+43.3%	¥3.6B ($23.0M)
2025-05-28	BUY	unknown	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	100	¥2,000	+43.3%	¥200K ($1K)
2025-04-11	BUY	unknown	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	100	¥1,772	+61.7%	¥177K ($1K)
2025-04-11	BUY	unknown	野村絢 Aya Nomura (Murakami family)	activist	2.3M	¥1,772	+61.7%	¥4.0B ($26.1M)
2024-12-19	SELL	Market Buy	太陽生命保険株式会社 TAIYO LIFE INSURANCE COMPANY	passive	369.5K	¥1,405	-103.9%	¥2.1B ($13.7M)
2024-12-19	SELL	Market Buy	大同生命保険株式会社 DAIDO LIFE INSURANCE COMPANY	passive	414.7K	¥1,405	-103.9%	¥2.4B ($15.4M)
2024-12-16	BUY	unknown	株式会社日本製鋼所 THE JAPAN STEEL WORKS, LTD.	other	2.5M	¥1,384	+107.0%	¥3.4B ($22.1M)
2023-02-20	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	455.6K	¥1,116	-156.7%	¥295M ($1.9M)
2023-02-20	SELL	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	944.2K	¥1,116	-156.7%	¥448M ($2.9M)
2023-02-20	BUY	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	12.1K	¥1,116	+156.7%	¥1.4B ($8.8M)
2023-02-20	SELL	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	183.6K	¥1,116	-156.7%	¥15M ($99K)
2022-12-19	BUY	Market Buy	スパークス・アセット・マネジメント株式会社 SPARX Asset Management Co., Ltd.	passive	2.3M	¥971	+195.1%	¥2.2B ($14.4M)

Frequently asked questions

Who has been buying Tsukishima Kikai Co., Ltd. stock?: 10 distinct investors have filed 5 disclosed large-shareholding filings in Tsukishima Kikai Co., Ltd. (6332), most recently on 2025-10-07. 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 Tsukishima Kikai Co., Ltd. have?: Tsukishima Kikai Co., Ltd. has 5 buy-side and 7 sell-side disclosures on record, covering ¥7.2B ($46.2M) in total reported value, spanning 2022-12-19 to 2025-10-07.
Where does StockDrifts get Tsukishima Kikai 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 Tsukishima Kikai Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.