Who has been buying ANEST IWATA Corporation stock?

7 distinct investors have filed 11 disclosed large-shareholding filings in ANEST IWATA Corporation (6381), most recently on 2025-12-01. 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 ANEST IWATA Corporation have?

ANEST IWATA Corporation has 11 buy-side and 10 sell-side disclosures on record, covering ¥3.1B ($20.1M) in total reported value, spanning 2022-01-31 to 2025-12-01.

Where does StockDrifts get ANEST IWATA 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.

ANEST IWATA Corporation 6381

Company

アネスト岩田株式会社ANEST IWATA Corporation

Investors

Buys

Total Value

¥3.1B ($20.1M)

Avg Return

+19.18%

Last Filing

2025-12-01

ANEST IWATA Corporation (6381) has 11 disclosed large-shareholding filings and 10 disclosed disposals on record, filed by 7 distinct investors. Together those filings cover ¥3.1B ($20.1M) in reported transaction value. The earliest filing StockDrifts holds for ANEST IWATA Corporation is dated 2022-01-31; the most recent is 2025-12-01. 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 +19.18%, 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
2025-12-01	SELL	Market Buy	ファースト・センティア・インベスターズ (ユーケー) アイエム・リミテッドIM Limited) First Sentier Investors (UK	unknown	0	¥1,543	-5.9%	-
2025-12-01	BUY	Market Buy	ファースト・センティア・インベスターズ(香港)リミテッドLimited) First Sentier Investors (Hong Kong	passive	1.0M	¥1,543	-5.9%	¥1.7B ($11.1M)
2025-12-01	BUY	Market Buy	三菱UFJアセットマネジメント株式会社	passive	555.1K	¥1,543	+5.9%	¥907M ($5.9M)
2025-12-01	SELL	Market Buy	三菱UFJ信託銀行株式会社	passive	1.3M	¥1,543	-5.9%	¥2.1B ($13.2M)
2025-06-30	BUY	Market Buy	ファースト・センティア・インベスターズ (ユーケー) アイエム・リミテッドIM Limited) First Sentier Investors (UK	passive	1.1M	¥1,380	+18.4%	¥12M ($74K)
2025-06-30	SELL	Market Buy	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	447.3K	¥1,380	-18.4%	¥357M ($2.3M)
2025-06-30	SELL	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.3M	¥1,380	-18.4%	¥1.0B ($6.6M)
2024-11-18	BUY	Market Buy	ファースト・センティア・インベスターズ (ユーケー) アイエム・リミテッドIM Limited) First Sentier Investors (UK	passive	1.1M	¥1,483	+10.2%	¥136M ($879K)
2024-11-18	BUY	Market Buy	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	704.4K	¥1,483	+10.2%	¥260M ($1.7M)
2024-11-18	BUY	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	2.1M	¥1,483	+10.2%	¥235M ($1.5M)
2024-07-01	BUY	Market Buy	ファースト・センティア・インベスターズ (ユーケー) アイエム・リミテッドIM Limited) First Sentier Investors (UK	passive	1.0M	¥1,636	-0.1%	¥785M ($5.1M)
2024-07-01	BUY	Market Buy	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	13.3K	¥1,636	-0.1%	¥1.8B ($11.5M)
2024-07-01	BUY	Market Buy	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	531.3K	¥1,636	-0.1%	¥164M ($1.1M)
2024-07-01	BUY	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.9M	¥1,636	-0.1%	¥205M ($1.3M)
2024-01-29	BUY	Market Buy	ファースト・センティア・インベスターズ (ユーケー) アイエム・リミテッドIM Limited) First Sentier Investors (UK	passive	569.0K	¥1,199.165	+37.9%	¥682M ($4.4M)
2024-01-29	BUY	Market Buy	ファースト・センティア・インベスターズ (ユーケー) アイエム・リミテッドIM Limited) First Sentier Investors (UK	passive	569.0K	¥1,199.165	+37.9%	¥682M ($4.4M)
2024-01-29	BUY	Market Buy	ファースト・センティア・インベスターズ (ユーケー) アイエム・リミテッドIM Limited) First Sentier Investors (UK	passive	569.0K	¥1,199.165	+37.9%	¥682M ($4.4M)
2024-01-29	BUY	Market Buy	ファースト・センティア・インベスターズ (ユーケー) アイエム・リミテッドIM Limited) First Sentier Investors (UK	passive	569.0K	¥1,309	+24.8%	¥745M ($4.8M)
2024-01-29	BUY	Market Buy	ファースト・センティア・インベスターズ (ユーケー) アイエム・リミテッドIM Limited) First Sentier Investors (UK	passive	569.0K	¥1,309	+24.8%	¥745M ($4.8M)
2024-01-29	BUY	Market Buy	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	165.1K	¥1,309	+24.8%	¥216M ($1.4M)
2024-01-29	BUY	Market Buy	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	429.2K	¥1,309	+24.8%	¥562M ($3.6M)
2024-01-29	SELL	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.8M	¥1,309	-24.8%	¥87M ($564K)
2023-10-16	SELL	unknown	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	431.6K	¥1,134	-44.1%	¥52M ($336K)
2023-10-16	BUY	unknown	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.8M	¥1,134	+44.1%	¥114M ($733K)
2023-10-16	SELL	unknown	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	unknown	0	¥1,134	-44.1%	¥161M ($1.0M)
2022-01-31	SELL	negotiated	エム・ユー投資顧問株式会社 M.U. Investment Advisors Co., Ltd.	unknown	0	¥769	-112.5%	¥42M ($269K)
2022-01-31	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	477.9K	¥769	+112.5%	¥55M ($352K)
2022-01-31	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.7M	¥769	-112.5%	¥55M ($352K)
2022-01-31	SELL	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	143.8K	¥769	-112.5%	¥742M ($4.8M)

Frequently asked questions

Who has been buying ANEST IWATA Corporation stock?: 7 distinct investors have filed 11 disclosed large-shareholding filings in ANEST IWATA Corporation (6381), most recently on 2025-12-01. 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 ANEST IWATA Corporation have?: ANEST IWATA Corporation has 11 buy-side and 10 sell-side disclosures on record, covering ¥3.1B ($20.1M) in total reported value, spanning 2022-01-31 to 2025-12-01.
Where does StockDrifts get ANEST IWATA 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 ANEST IWATA Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.