Who has been buying Iseki & Co., Ltd. stock?

5 distinct investors have filed 3 disclosed large-shareholding filings in Iseki & Co., Ltd. (6310), most recently on 2026-03-05. 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 Iseki & Co., Ltd. have?

Iseki & Co., Ltd. has 3 buy-side and 9 sell-side disclosures on record, covering ¥358M ($2.3M) in total reported value, spanning 2022-03-07 to 2026-03-05.

Where does StockDrifts get Iseki & 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.

Iseki & Co., Ltd. 6310

Company

井関農機株式会社Iseki & Co., Ltd.

Investors

Buys

Total Value

¥358M ($2.3M)

Avg Return

+21.52%

Last Filing

2026-03-05

Iseki & Co., Ltd. (6310) has 3 disclosed large-shareholding filings and 9 disclosed disposals on record, filed by 5 distinct investors. Together those filings cover ¥358M ($2.3M) in reported transaction value. The earliest filing StockDrifts holds for Iseki & Co., Ltd. is dated 2022-03-07; the most recent is 2026-03-05. 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 +21.52%, 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
2026-03-05	SELL	negotiated	アモーヴァ・アセットマネジメント株式会社	other	295.0K	¥1,851	+8.7%	¥499M ($3.2M)
2026-03-05	SELL	negotiated	三井住友トラスト・アセットマネジメント株式会社	other	381.1K	¥1,851	+8.7%	¥644M ($4.2M)
2026-03-05	BUY	negotiated	三井住友信託銀行株式会社	strategic	800.0K	¥1,851	+8.7%	¥1.4B ($8.7M)
2026-01-08	SELL	negotiated	アモーヴァ・アセットマネジメント株式会社	other	295.5K	¥1,844	+8.4%	¥499M ($3.2M)
2026-01-08	BUY	negotiated	三井住友トラスト・アセットマネジメント株式会社	other	410.3K	¥1,844	+8.4%	¥693M ($4.5M)
2026-01-08	BUY	negotiated	三井住友信託銀行株式会社	strategic	800.0K	¥1,844	+8.4%	¥1.4B ($8.7M)
2025-11-20	SELL	negotiated	アモーヴァ・アセットマネジメント株式会社 Amova Asset Management Co., Ltd.	other	298.3K	¥1,937	+12.8%	¥22M ($144K)
2025-11-20	SELL	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	410.5K	¥1,937	+12.8%	¥36M ($230K)
2025-11-20	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	800.0K	¥1,937	-12.8%	¥1.5B ($10.0M)
2025-09-19	BUY	negotiated	アモーヴァ・アセットマネジメント株式会社 Amova Asset Management Co., Ltd.	other	309.4K	¥2,302	-26.6%	¥21M ($137K)
2025-09-19	SELL	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	429.4K	¥2,302	+26.6%	¥312M ($2.0M)
2025-09-19	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	800.0K	¥2,302	-26.6%	¥1.8B ($11.9M)
2024-07-04	BUY	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	301.6K	¥1,065	+58.7%	¥32M ($205K)
2024-07-04	SELL	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	564.9K	¥1,065	-58.7%	¥245M ($1.6M)
2024-07-04	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	800.0K	¥1,065	+58.7%	¥852M ($5.5M)
2022-03-22	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	800.0K	¥1,276	+32.5%	¥1.0B ($6.6M)
2022-03-22	SELL	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	270.5K	¥1,276	-32.5%	¥3M ($19K)
2022-03-22	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	795.2K	¥1,276	+32.5%	¥305M ($2.0M)
2022-03-07	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	376.8K	¥1,140	-48.3%	¥293M ($1.9M)
2022-03-07	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	1.1M	¥1,140	+48.3%	¥1.2B ($7.9M)

Frequently asked questions

Who has been buying Iseki & Co., Ltd. stock?: 5 distinct investors have filed 3 disclosed large-shareholding filings in Iseki & Co., Ltd. (6310), most recently on 2026-03-05. 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 Iseki & Co., Ltd. have?: Iseki & Co., Ltd. has 3 buy-side and 9 sell-side disclosures on record, covering ¥358M ($2.3M) in total reported value, spanning 2022-03-07 to 2026-03-05.
Where does StockDrifts get Iseki & 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 Iseki & Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.