Who has been buying Ito Yogyo Co., Ltd stock?

4 distinct investors have filed 5 disclosed large-shareholding filings in Ito Yogyo Co., Ltd (5287), most recently on 2026-04-27. 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 Ito Yogyo Co., Ltd have?

Ito Yogyo Co., Ltd has 5 buy-side and 5 sell-side disclosures on record, covering ¥107M ($690K) in total reported value, spanning 2021-07-14 to 2026-04-27.

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.

Ito Yogyo Co., Ltd 5287

Company

株式会社イトーヨーギョーIto Yogyo Co., Ltd

Investors

Buys

Total Value

¥107M ($690K)

Avg Return

+19.39%

Last Filing

2026-04-27

Ito Yogyo Co., Ltd (5287) has 5 disclosed large-shareholding filings and 5 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥107M ($690K) in reported transaction value. The earliest filing StockDrifts holds for Ito Yogyo Co., Ltd is dated 2021-07-14; the most recent is 2026-04-27. Across these filings the average return since disclosure is +19.39%, 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
2026-04-27	BUY	Market Buy	畑中雄介 Yusuke Hatanaka	strategic	400.1K	¥1,040	-12.8%	¥57M ($369K)
2026-03-04	SELL	unknown	畑中千弘 Chihiro Hatanaka	strategic	600.4K	¥1,226	+26.0%	¥73M ($474K)
2026-03-04	BUY	unknown	畑中浩太郎 Kotaro Hatanaka	strategic	370.1K	¥1,226	-	¥49M ($316K)
2026-03-04	BUY	Market Buy	畑中浩太郎 Kotaro Hatanaka	strategic	370.1K	¥1,226	-26.0%	¥49M ($316K)
2024-03-15	BUY	unknown	畑中千弘 Chihiro Hatanaka	strategic	660.4K	¥566	-	¥37M ($237K)
2024-03-15	SELL	unknown	畑中千弘 Chihiro Hatanaka	strategic	660.4K	¥566	-60.3%	¥37M ($237K)
2022-03-02	BUY	Market Buy	畑中雄介 Yusuke Hatanaka	strategic	330.1K	¥734	+23.6%	¥29M ($189K)
2022-03-02	BUY	Market Buy	畑中浩太郎 Kotaro Hatanaka	strategic	330.1K	¥734	+23.6%	¥29M ($189K)
2022-03-02	SELL	unknown	畑中千弘 Chihiro Hatanaka	strategic	725.4K	¥734	-23.6%	¥48M ($308K)
2022-03-02	BUY	unknown	畑中浩太郎 Kotaro Hatanaka	strategic	330.1K	¥734	-	¥29M ($189K)
2022-03-02	BUY	unknown	畑中雄介 Yusuke Hatanaka	strategic	345.1K	¥734	-	¥40M ($260K)
2021-12-10	SELL	unknown	伊藤泰博 Yasuhiro Itou	strategic	67.1K	¥764	-18.7%	¥90M ($579K)
2021-08-27	BUY	unknown	伊藤泰博 Yasuhiro Itou	strategic	184.5K	¥923	-	¥157M ($1.0M)
2021-08-27	SELL	unknown	伊藤泰博 Yasuhiro Itou	strategic	184.5K	¥923	+1.7%	¥157M ($1.0M)
2021-07-14	BUY	Market Buy	伊藤泰博 Yasuhiro Itou	strategic	354.5K	¥1,171	-22.5%	¥836K ($5K)

Frequently asked questions

Who has been buying Ito Yogyo Co., Ltd stock?: 4 distinct investors have filed 5 disclosed large-shareholding filings in Ito Yogyo Co., Ltd (5287), most recently on 2026-04-27. 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 Ito Yogyo Co., Ltd have?: Ito Yogyo Co., Ltd has 5 buy-side and 5 sell-side disclosures on record, covering ¥107M ($690K) in total reported value, spanning 2021-07-14 to 2026-04-27.
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.