Who has been buying Yuki Gosei Kogyo Co., Ltd. stock?

7 distinct investors have filed 4 disclosed large-shareholding filings in Yuki Gosei Kogyo Co., Ltd. (4531), most recently on 2025-02-18. 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 Yuki Gosei Kogyo Co., Ltd. have?

Yuki Gosei Kogyo Co., Ltd. has 4 buy-side and 9 sell-side disclosures on record, covering ¥548M ($3.5M) in total reported value, spanning 2022-07-04 to 2025-02-18.

Where does StockDrifts get Yuki Gosei Kogyo 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.

Yuki Gosei Kogyo Co., Ltd. 4531

Company

有機合成薬品工業株式会社Yuki Gosei Kogyo Co., Ltd.

Investors

Buys

Total Value

¥548M ($3.5M)

Avg Return

+33.57%

Last Filing

2025-02-18

Yuki Gosei Kogyo Co., Ltd. (4531) has 4 disclosed large-shareholding filings and 9 disclosed disposals on record, filed by 7 distinct investors. Together those filings cover ¥548M ($3.5M) in reported transaction value. The earliest filing StockDrifts holds for Yuki Gosei Kogyo Co., Ltd. is dated 2022-07-04; the most recent is 2025-02-18. 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 +33.57%, 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
2025-02-18	SELL	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	unknown	0	¥271	-39.9%	¥8M ($50K)
2025-02-18	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	strategic	390.0K	¥271	-39.9%	¥13M ($81K)
2025-02-18	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	666.2K	¥271	+39.9%	¥181M ($1.2M)
2024-07-29	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	666.2K	¥307	+23.4%	¥205M ($1.3M)
2024-07-29	SELL	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	29.4K	¥307	-23.4%	¥9M ($57K)
2024-07-29	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	434.5K	¥307	-23.4%	¥24M ($157K)
2024-07-17	BUY	unknown	住友ファーマ株式会社 Sumitomo Pharma Co., Ltd.	strategic	641.0K	¥308	+23.1%	¥197M ($1.3M)
2024-07-17	BUY	unknown	住友化学株式会社 SUMITOMO CHEMICAL COMPANY, LIMITED	strategic	0	¥308	+23.1%	¥2M ($13K)
2023-12-08	BUY	unknown	住友ファーマ株式会社 Sumitomo Pharma Co., Ltd.	strategic	641.0K	¥279	+35.8%	¥179M ($1.2M)
2023-12-08	BUY	unknown	広栄化学株式会社 Koei Chemical Company, Limited	strategic	73.0K	¥279	+35.8%	¥20M ($131K)
2023-12-08	BUY	unknown	住友ファーマ株式会社 Sumitomo Pharma Co., Ltd.	strategic	641.0K	¥279	+35.8%	¥179M ($1.2M)
2023-12-08	BUY	unknown	広栄化学株式会社 Koei Chemical Company, Limited	strategic	73.0K	¥279	+35.8%	¥20M ($131K)
2023-12-08	BUY	unknown	住友化学株式会社 SUMITOMO CHEMICAL COMPANY, LIMITED	strategic	671.3K	¥279	+35.8%	¥63M ($403K)
2023-12-08	BUY	unknown	住友化学株式会社 SUMITOMO CHEMICAL COMPANY, LIMITED	strategic	671.3K	¥279	+35.8%	¥63M ($403K)
2023-10-16	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	514.4K	¥287	-32.1%	¥47M ($301K)
2023-10-16	BUY	negotiated	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	4.6K	¥287	+32.1%	¥119M ($765K)
2023-10-16	SELL	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	58.2K	¥287	-32.1%	¥9M ($61K)
2023-10-16	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	666.2K	¥287	+32.1%	¥191M ($1.2M)
2023-06-05	BUY	unknown	広栄化学株式会社 Koei Chemical Company, Limited	strategic	73.0K	¥295	+28.5%	¥22M ($139K)
2023-06-05	BUY	unknown	住友ファーマ株式会社 Sumitomo Pharma Co., Ltd.	strategic	641.0K	¥295	+28.5%	¥189M ($1.2M)
2023-06-05	BUY	unknown	住友化学株式会社 SUMITOMO CHEMICAL COMPANY, LIMITED	strategic	895.0K	¥295	+28.5%	¥264M ($1.7M)
2022-09-20	BUY	negotiated	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	26.8K	¥312	+21.5%	¥8M ($54K)
2022-09-20	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	90.4K	¥312	+21.5%	¥1M ($9K)
2022-09-20	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	676.2K	¥312	-21.5%	¥97M ($624K)
2022-09-20	SELL	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	666.2K	¥312	-21.5%	¥47M ($301K)
2022-07-04	BUY	negotiated	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	18.3K	¥270	+40.4%	¥428M ($2.8M)
2022-07-04	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	86.3K	¥270	+40.4%	¥10M ($65K)
2022-07-04	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	987.2K	¥270	-40.4%	¥24M ($153K)
2022-07-04	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	816.2K	¥270	+40.4%	¥220M ($1.4M)

Frequently asked questions

Who has been buying Yuki Gosei Kogyo Co., Ltd. stock?: 7 distinct investors have filed 4 disclosed large-shareholding filings in Yuki Gosei Kogyo Co., Ltd. (4531), most recently on 2025-02-18. 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 Yuki Gosei Kogyo Co., Ltd. have?: Yuki Gosei Kogyo Co., Ltd. has 4 buy-side and 9 sell-side disclosures on record, covering ¥548M ($3.5M) in total reported value, spanning 2022-07-04 to 2025-02-18.
Where does StockDrifts get Yuki Gosei Kogyo 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 Yuki Gosei Kogyo Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.