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

5 distinct investors have filed 3 disclosed large-shareholding filings in Natoco Co., Ltd. (4627), most recently on 2025-06-24. 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 Natoco Co., Ltd. have?

Natoco Co., Ltd. has 3 buy-side and 8 sell-side disclosures on record, covering ¥1.1B ($6.8M) in total reported value, spanning 2022-01-31 to 2025-06-24.

Where does StockDrifts get Natoco 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.

Natoco Co., Ltd. 4627

Company

ナトコ株式会社Natoco Co., Ltd.

Investors

Buys

Total Value

¥1.1B ($6.8M)

Avg Return

+4.68%

Last Filing

2025-06-24

Natoco Co., Ltd. (4627) has 3 disclosed large-shareholding filings and 8 disclosed disposals on record, filed by 5 distinct investors. Together those filings cover ¥1.1B ($6.8M) in reported transaction value. The earliest filing StockDrifts holds for Natoco Co., Ltd. is dated 2022-01-31; the most recent is 2025-06-24. 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 +4.68%, 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
2025-06-24	BUY	Market Buy	NTCホールディングス合同会社 NTC Holdings LLC	passive	220.6K	¥1,372	+22.2%	¥303M ($2.0M)
2025-06-24	BUY	Market Buy	粕谷幸子 Sachiko Kasuya	activist	149.4K	¥1,372	+22.2%	¥205M ($1.3M)
2025-06-24	BUY	Market Buy	粕谷忠晴 Tadaharu Kasuya	activist	1.2M	¥1,372	+22.2%	¥1.6B ($10.3M)
2025-06-24	BUY	Market Buy	有限会社巴ホールディングス TOMOE Holdings Co.,Ltd.	passive	270.0K	¥1,372	+22.2%	¥370M ($2.4M)
2022-11-07	SELL	Market Buy	有限会社巴ホールディングス TOMOE Holdings Co.,Ltd.	passive	270.0K	¥1,602	-4.7%	¥352M ($2.3M)
2022-11-07	BUY	Market Buy	NTCホールディングス株式会社 NTC Holdings Co., Ltd.	passive	220.6K	¥1,602	+4.7%	¥354M ($2.3M)
2022-11-07	BUY	Market Buy	粕谷幸子 Sachiko Kasuya	activist	149.4K	¥1,602	+4.7%	¥239M ($1.5M)
2022-11-07	SELL	Market Buy	粕谷忠晴 Tadaharu Kasuya	activist	1.2M	¥1,602	-4.7%	¥47M ($303K)
2022-11-07	BUY	Market Buy	NTCホールディングス株式会社 NTC Holdings Co., Ltd.	passive	220.6K	¥1,602	+4.7%	¥354M ($2.3M)
2022-11-07	BUY	Market Buy	粕谷幸子 Sachiko Kasuya	activist	149.4K	¥1,602	+4.7%	¥239M ($1.5M)
2022-11-07	SELL	Market Buy	粕谷忠晴 Tadaharu Kasuya	activist	1.2M	¥1,602	-4.7%	¥47M ($303K)
2022-11-07	BUY	Market Buy	NTCホールディングス株式会社 NTC Holdings Co., Ltd.	passive	220.6K	¥1,602	+4.7%	¥354M ($2.3M)
2022-11-07	BUY	Market Buy	粕谷幸子 Sachiko Kasuya	activist	149.4K	¥1,602	+4.7%	¥239M ($1.5M)
2022-11-07	SELL	Market Buy	粕谷忠晴 Tadaharu Kasuya	activist	1.2M	¥1,602	-4.7%	¥47M ($303K)
2022-11-07	SELL	Market Buy	有限会社巴ホールディングス TOMOE Holdings Co.,Ltd.	passive	270.0K	¥1,602	-4.7%	¥352M ($2.3M)
2022-11-07	SELL	Market Buy	有限会社巴ホールディングス TOMOE Holdings Co.,Ltd.	passive	270.0K	¥1,602	-4.7%	¥352M ($2.3M)
2022-03-25	SELL	unknown	ナトコ共栄会理事長大鳥居清和 Natoco Prosperity Group President OHTORII KIYOKAZU	strategic	690.8K	¥1,349	-24.3%	¥220M ($1.4M)
2022-03-25	BUY	unknown	ナトコ共栄会理事長大鳥居清和 Natoco Prosperity Group President OHTORII KIYOKAZU	strategic	690.8K	¥1,349	+24.3%	¥220M ($1.4M)
2022-01-31	SELL	unknown	ナトコ共栄会理事長大鳥居清和 Natoco Prosperity Group President OHTORII KIYOKAZU	strategic	853.4K	¥1,320	-27.1%	¥156M ($1.0M)
2022-01-31	BUY	unknown	ナトコ共栄会理事長大鳥居清和 Natoco Prosperity Group President OHTORII KIYOKAZU	strategic	853.4K	¥1,320	+27.1%	¥156M ($1.0M)
2022-01-31	BUY	unknown	ナトコ共栄会理事長大鳥居清和 Natoco Prosperity Group President OHTORII KIYOKAZU	strategic	853.4K	¥1,320	+27.1%	¥156M ($1.0M)

Frequently asked questions

Who has been buying Natoco Co., Ltd. stock?: 5 distinct investors have filed 3 disclosed large-shareholding filings in Natoco Co., Ltd. (4627), most recently on 2025-06-24. 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 Natoco Co., Ltd. have?: Natoco Co., Ltd. has 3 buy-side and 8 sell-side disclosures on record, covering ¥1.1B ($6.8M) in total reported value, spanning 2022-01-31 to 2025-06-24.
Where does StockDrifts get Natoco 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 Natoco Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.