Who has been buying TYK Corporation stock?

6 distinct investors have filed 4 disclosed large-shareholding filings in TYK Corporation (5363), most recently on 2023-06-06. 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 TYK Corporation have?

TYK Corporation has 4 buy-side and 7 sell-side disclosures on record, covering ¥694M ($4.5M) in total reported value, spanning 2021-04-06 to 2023-06-06.

Where does StockDrifts get TYK Corporation 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.

TYK Corporation 5363

Company

東京窯業株式会社TYK Corporation

Investors

Buys

Total Value

¥694M ($4.5M)

Avg Return

+90.34%

Last Filing

2023-06-06

TYK Corporation (5363) has 4 disclosed large-shareholding filings and 7 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥694M ($4.5M) in reported transaction value. The earliest filing StockDrifts holds for TYK Corporation is dated 2021-04-06; the most recent is 2023-06-06. 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 +90.34%, 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
2026-07-10	BUY	unknown	東北特殊鋼株式会社	strategic	384.1K	¥685	+2.6%	¥263M ($1.7M)
2026-07-10	BUY	Market Buy	大同興業株式会社	other	118.2K	¥685	+2.6%	¥53M ($342K)
2026-07-10	BUY	Market Buy	大同特殊鋼株式会社	activist	5.2M	¥685	+2.6%	¥103M ($663K)
2023-06-06	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	217.6K	¥319	-83.1%	¥64M ($412K)
2023-06-06	BUY	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	1.6M	¥319	+83.1%	¥507M ($3.3M)
2023-05-30	SELL	negotiated	JFEスチール株式会社 JFE Steel Corporation	strategic	2.2M	¥324	-80.3%	¥404M ($2.6M)
2023-05-22	SELL	negotiated	JFEスチール株式会社 JFE Steel Corporation	strategic	3.4M	¥328	-78.0%	¥194M ($1.3M)
2023-02-28	SELL	negotiated	JFEスチール株式会社 JFE Steel Corporation	strategic	4.0M	¥328	-78.0%	¥215M ($1.4M)
2022-09-07	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	185.8K	¥272	-114.7%	¥139M ($894K)
2022-09-07	BUY	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	other	176.2K	¥272	+114.7%	¥48M ($309K)
2022-09-07	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	2.2M	¥272	+114.7%	¥603M ($3.9M)
2021-07-12	SELL	negotiated	JFEスチール株式会社 JFE Steel Corporation	strategic	4.7M	¥319	-83.1%	¥202M ($1.3M)
2021-06-04	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	416.4K	¥317	+84.2%	¥132M ($852K)
2021-06-04	BUY	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	1.9M	¥317	+84.2%	¥603M ($3.9M)
2021-04-06	SELL	Market Buy	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	366.3K	¥278.331	-109.8%	¥56M ($359K)
2021-04-06	BUY	Market Buy	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	1.9M	¥278.331	+109.8%	¥54M ($351K)

Frequently asked questions

Who has been buying TYK Corporation stock?: 6 distinct investors have filed 4 disclosed large-shareholding filings in TYK Corporation (5363), most recently on 2023-06-06. 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 TYK Corporation have?: TYK Corporation has 4 buy-side and 7 sell-side disclosures on record, covering ¥694M ($4.5M) in total reported value, spanning 2021-04-06 to 2023-06-06.
Where does StockDrifts get TYK Corporation 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 TYK Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.