Who has been buying Takaoka Toko Co., Ltd. stock?

4 distinct investors have filed 5 disclosed large-shareholding filings in Takaoka Toko Co., Ltd. (6617), most recently on 2026-05-11. 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 Takaoka Toko Co., Ltd. have?

Takaoka Toko Co., Ltd. has 5 buy-side and 2 sell-side disclosures on record, covering ¥7.4B ($47.5M) in total reported value, spanning 2022-06-21 to 2026-05-11.

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.

Takaoka Toko Co., Ltd. 6617

Company

株式会社東光高岳Takaoka Toko Co., Ltd.

Investors

Buys

Total Value

¥7.4B ($47.5M)

Avg Return

+169.13%

Last Filing

2026-05-11

Takaoka Toko Co., Ltd. (6617) has 5 disclosed large-shareholding filings and 2 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥7.4B ($47.5M) in reported transaction value. The earliest filing StockDrifts holds for Takaoka Toko Co., Ltd. is dated 2022-06-21; the most recent is 2026-05-11. Across these filings the average return since disclosure is +169.13%, 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
2026-08-07	BUY	Market Buy	三井住友DSアセットマネジメント株式会社	passive	1.2M	¥7,720	-9.7%	¥1.4B ($8.8M)
2026-08-07	BUY	unknown	SMBC日興証券株式会社	other	17.7K	¥7,720	-	¥137M ($882K)
2026-05-21	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	1.1M	¥7,430	-6.2%	¥1.7B ($10.9M)
2026-05-11	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	830.1K	¥8,360	-16.6%	¥6.9B ($44.8M)
2023-03-06	SELL	unknown	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	unknown	0	¥2,335	-198.5%	¥418M ($2.7M)
2023-03-06	SELL	unknown	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	464.3K	¥2,335	-198.5%	¥4M ($25K)
2023-03-06	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	228.8K	¥2,335	+198.5%	¥137M ($883K)
2022-06-21	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	178.7K	¥1,679	+315.1%	¥300M ($1.9M)
2022-06-21	BUY	negotiated	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	466.2K	¥1,679	+315.1%	¥783M ($5.0M)
2022-06-21	BUY	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	171.6K	¥1,679	+315.1%	¥288M ($1.9M)

Frequently asked questions

Who has been buying Takaoka Toko Co., Ltd. stock?: 4 distinct investors have filed 5 disclosed large-shareholding filings in Takaoka Toko Co., Ltd. (6617), most recently on 2026-05-11. 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 Takaoka Toko Co., Ltd. have?: Takaoka Toko Co., Ltd. has 5 buy-side and 2 sell-side disclosures on record, covering ¥7.4B ($47.5M) in total reported value, spanning 2022-06-21 to 2026-05-11.
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.