Who has been buying Syuppin Co., Ltd. stock?

17 distinct investors have filed 63 disclosed large-shareholding filings in Syuppin Co., Ltd. (3179), most recently on 2026-04-22. 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 Syuppin Co., Ltd. have?

Syuppin Co., Ltd. has 63 buy-side and 44 sell-side disclosures on record, covering ¥6.8B ($43.6M) in total reported value, spanning 2021-04-07 to 2026-04-22.

Where does StockDrifts get Syuppin 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.

Syuppin Co., Ltd. 3179

Company

シュッピン株式会社Syuppin Co., Ltd.

Investors

Buys

Total Value

¥6.8B ($43.6M)

Avg Return

-3.34%

Last Filing

2026-04-22

Syuppin Co., Ltd. (3179) has 63 disclosed large-shareholding filings and 44 disclosed disposals on record, filed by 17 distinct investors. Together those filings cover ¥6.8B ($43.6M) in reported transaction value. The earliest filing StockDrifts holds for Syuppin Co., Ltd. is dated 2021-04-07; the most recent is 2026-04-22. 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 -3.34%, 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
2026-07-28	BUY	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	2.9M	¥1,308	-6.9%	¥433M ($2.8M)
2026-07-23	BUY	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	2.6M	¥1,238	-1.6%	¥24M ($154K)
2026-07-15	BUY	Market Buy	ブイアイエス・アドバイザーズ・エルピー(VIS Advisors,LP) VIS Advisors,LP	activist	2.0M	¥1,093	+10.2%	¥198M ($1.3M)
2026-06-18	SELL	unknown	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	720.7K	¥1,097	+0.1%	¥117M ($756K)
2026-06-18	BUY	Market Buy	フィデリティマネジメントトラストカンパニー Fidelity Management Trust Company	other	46.7K	¥1,097	-0.1%	¥3M ($16K)
2026-06-18	BUY	Market Buy	エフアイエーエムエルエルシー FIAM LLC	other	301.9K	¥1,097	-0.1%	¥71M ($460K)
2026-06-18	BUY	Market Buy	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	1.2M	¥1,097	-0.1%	¥232M ($1.5M)
2026-06-18	BUY	unknown	フィデリティマネジメントトラストカンパニー Fidelity Management Trust Company	other	46.7K	¥1,097	-0.1%	¥51M ($331K)
2026-06-18	BUY	Market Buy	エフアイエーエムエルエルシー FIAM LLC	other	513.9K	¥1,097	-0.1%	¥232M ($1.5M)
2026-06-18	BUY	Market Buy	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	1.4M	¥1,097	-0.1%	¥191M ($1.2M)
2026-06-18	BUY	Market Buy	フィデリティマネジメントトラストカンパニー Fidelity Management Trust Company	other	50.1K	¥1,097	-0.1%	¥5M ($33K)
2026-06-18	BUY	Market Buy	エフアイエーエムエルエルシー FIAM LLC	other	1.2M	¥1,097	-0.1%	¥807M ($5.2M)
2026-06-18	SELL	unknown	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	899.2K	¥1,097	+0.1%	¥570M ($3.7M)
2026-06-18	BUY	Market Buy	フィデリティマネジメントトラストカンパニー Fidelity Management Trust Company	other	51.4K	¥1,097	-0.1%	¥5M ($30K)
2026-06-18	BUY	Market Buy	エフアイエーエムエルエルシー FIAM LLC	other	1.2M	¥1,097	-0.1%	¥7M ($45K)
2026-06-18	BUY	unknown	フィデリティマネジメントトラストカンパニー Fidelity Management Trust Company	other	51.4K	¥1,097	-0.1%	¥56M ($364K)
2026-06-18	BUY	unknown	エフアイエーエムエルエルシー FIAM LLC	other	1.2M	¥1,097	-0.1%	¥1.3B ($8.2M)
2026-06-18	BUY	unknown	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	720.7K	¥1,097	-0.1%	¥791M ($5.1M)
2026-06-17	BUY	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	2.5M	¥1,095	+0.1%	¥236M ($1.5M)
2026-06-09	BUY	unknown	フィデリティマネジメントトラストカンパニー Fidelity Management Trust Company	other	44.3K	¥1,060	+1.9%	¥47M ($303K)
2026-06-09	BUY	unknown	エフアイエーエムエルエルシー FIAM LLC	other	237.8K	¥1,060	+1.9%	¥252M ($1.6M)
2026-06-09	BUY	unknown	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	1.0M	¥1,060	+1.9%	¥1.1B ($7.1M)
2026-06-03	BUY	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	2.3M	¥1,040	+1.6%	¥224M ($1.4M)
2026-04-22	BUY	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	1.9M	¥1,089	-0.7%	¥2.1B ($13.5M)
2026-04-17	SELL	unknown	ミリ・キャピタル・マネジメント・エルエルシー (MIRI Capital Management LLC) MIRI Capital Management LLC	activist	1.7M	¥1,124	+8.9%	¥247M ($1.6M)
2026-04-07	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	1.9M	¥1,136	-3.9%	¥121M ($783K)
2026-01-19	BUY	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	2.1M	¥1,198	-8.9%	¥315M ($2.0M)
2025-10-08	BUY	Market Buy	ブイアイエス・アドバイザーズ・エルピー(VIS Advisors,LP) VIS Advisors,LP	activist	1.9M	¥1,252	-12.9%	¥103M ($663K)
2025-10-07	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	78.5K	¥1,250	-12.7%	¥11M ($72K)
2025-10-07	SELL	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	751.8K	¥1,250	+12.7%	¥388M ($2.5M)
2025-08-22	BUY	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	1.9M	¥1,193	-8.6%	¥281M ($1.8M)
2025-08-18	BUY	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	1.7M	¥1,161	-6.0%	¥353M ($2.3M)
2025-07-10	BUY	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	1.4M	¥1,140	-4.3%	¥296M ($1.9M)
2025-06-30	SELL	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	8.3K	¥1,130	+3.5%	¥135M ($874K)
2025-06-30	BUY	Market Buy	三菱UFJ eスマート証券株式会社 Mitsubishi UFJ eSmart Securities Co., Ltd.	other	3.2K	¥1,130	-3.5%	¥193M ($1.2M)
2025-06-30	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	238.0K	¥1,130	-3.5%	¥43M ($275K)
2025-06-30	SELL	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	612.1K	¥1,130	+3.5%	¥632M ($4.1M)
2025-06-30	BUY	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	1.1M	¥1,130	-3.5%	¥1.3B ($8.1M)
2025-05-22	SELL	unknown	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	1.1M	¥1,126	+3.1%	¥193M ($1.2M)
2025-05-22	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	71.3K	¥1,126	+3.1%	¥800M ($5.2M)
2025-05-09	SELL	Market Buy	ブイアイエス・アドバイザーズ・エルピー(VIS Advisors,LP) VIS Advisors,LP	passive	1.9M	¥1,077	-1.3%	¥397M ($2.6M)
2025-03-28	BUY	Market Buy	ミリ・キャピタル・マネジメント・エルエルシー (MIRI Capital Management LLC) MIRI Capital Management LLC	activist	2.1M	¥1,123	-2.9%	¥276M ($1.8M)
2025-03-27	BUY	Market Buy	ミリ・キャピタル・マネジメント・エルエルシー (MIRI Capital Management LLC) MIRI Capital Management LLC	activist	1.9M	¥1,125	-3.0%	¥441M ($2.8M)
2025-03-25	BUY	Market Buy	ミリ・キャピタル・マネジメント・エルエルシー (MIRI Capital Management LLC) MIRI Capital Management LLC	activist	1.5M	¥1,118	-2.4%	¥345M ($2.2M)
2025-03-21	BUY	unknown	ミリ・キャピタル・マネジメント・エルエルシー (MIRI Capital Management LLC) MIRI Capital Management LLC	activist	1.2M	¥1,086	+0.5%	¥1.3B ($8.2M)
2025-03-07	SELL	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	1.3M	¥986	-10.7%	¥405M ($2.6M)
2025-03-07	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	782.1K	¥986	+10.7%	¥412M ($2.7M)
2024-11-22	SELL	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	363.9K	¥1,013	-7.7%	¥5M ($30K)
2024-11-22	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	1.7M	¥1,013	+7.7%	¥252M ($1.6M)
2024-10-22	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	2.0M	¥1,063	+2.6%	¥410M ($2.6M)

Showing the 50 most recent of 137 filings.

Frequently asked questions

Who has been buying Syuppin Co., Ltd. stock?: 17 distinct investors have filed 63 disclosed large-shareholding filings in Syuppin Co., Ltd. (3179), most recently on 2026-04-22. 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 Syuppin Co., Ltd. have?: Syuppin Co., Ltd. has 63 buy-side and 44 sell-side disclosures on record, covering ¥6.8B ($43.6M) in total reported value, spanning 2021-04-07 to 2026-04-22.
Where does StockDrifts get Syuppin 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 Syuppin Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.