Who has been buying Hennge K.K. stock?

18 distinct investors have filed 30 disclosed large-shareholding filings in Hennge K.K. (4475), most recently on 2026-02-17. 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 Hennge K.K. have?

Hennge K.K. has 30 buy-side and 36 sell-side disclosures on record, covering ¥19.1B ($123.3M) in total reported value, spanning 2021-03-18 to 2026-02-17.

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.

Hennge K.K. 4475

Company

HENNGE株式会社Hennge K.K.

Investors

Buys

Total Value

¥19.1B ($123.3M)

Avg Return

-34.25%

Last Filing

2026-02-17

Hennge K.K. (4475) has 30 disclosed large-shareholding filings and 36 disclosed disposals on record, filed by 18 distinct investors. Together those filings cover ¥19.1B ($123.3M) in reported transaction value. The earliest filing StockDrifts holds for Hennge K.K. is dated 2021-03-18; the most recent is 2026-02-17. Across these filings the average return since disclosure is -34.25%, 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
2026-11-02	BUY	Market Buy	Driehaus Capital Management LLC	passive	1.9M	¥2,266	+17.9%	¥4.4B ($28.2M)
2026-10-16	SELL	unknown	宮本和明	activist	2.7M	¥2,080	-28.4%	¥723M ($4.7M)
2026-10-16	BUY	Market Buy	株式会社強羅	activist	825.0K	¥2,080	+28.4%	¥466M ($3.0M)
2026-10-16	SELL	unknown	小椋一宏	activist	6.5M	¥2,080	-28.4%	¥2.0B ($12.6M)
2026-10-16	BUY	unknown	株式会社ヨイミカンアセットマネジメント	strategic	910.0K	¥2,080	-	-
2026-10-16	BUY	Market Buy	株式会社トレコ	strategic	665.8K	¥2,080	+28.4%	¥311M ($2.0M)
2026-10-16	SELL	unknown	永留義己	strategic	2.6M	¥2,080	-28.4%	¥960M ($6.2M)
2026-10-07	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.6M	¥1,794	+48.9%	¥2.9B ($19.0M)
2026-06-12	SELL	unknown	宮本和明	activist	3.0M	¥1,048	-154.9%	¥249M ($1.6M)
2026-06-12	BUY	Market Buy	株式会社ヨイミカンアセットマネジメント	strategic	910.0K	¥1,048	+154.9%	¥245M ($1.6M)
2026-02-17	SELL	unknown	小椋一宏	activist	7.5M	¥986	-170.9%	¥314M ($2.0M)
2026-02-17	BUY	unknown	株式会社強羅	activist	600.0K	¥986	+170.9%	¥298M ($1.9M)
2026-02-16	BUY	unknown	株式会社ヨイミカンアセットマネジメント	strategic	675.0K	¥1,005	+165.8%	¥327M ($2.1M)
2026-02-16	SELL	unknown	宮本和明	activist	3.3M	¥1,005	-165.8%	¥510M ($3.3M)
2025-11-25	BUY	unknown	株式会社トレコ	strategic	515.8K	¥1,275	+109.5%	¥211M ($1.4M)
2025-11-25	SELL	unknown	永留義己	strategic	3.0M	¥1,275	-109.5%	¥448M ($2.9M)
2025-07-23	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.5M	¥1,636	-63.3%	¥1.1B ($7.4M)
2025-06-20	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.2M	¥1,658	-61.1%	¥878M ($5.7M)
2025-06-20	BUY	unknown	アセットマネジメントOneインターナショナル Asset Management One International Ltd.	other	17.2K	¥1,658	+61.1%	¥2.6B ($16.7M)
2025-05-09	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.7M	¥1,512	-76.7%	¥717M ($4.6M)
2025-05-09	SELL	unknown	アセットマネジメントOneインターナショナル Asset Management One International Ltd.	other	61.5K	¥1,512	-76.7%	¥5M ($32K)
2025-04-02	SELL	unknown	小椋一宏 Kazuhiro Ogura	activist	7.8M	¥1,477	-80.8%	¥240M ($1.5M)
2025-04-02	BUY	unknown	株式会社強羅 Gora Co., Ltd.	activist	300.0K	¥1,477	-	-
2025-04-02	SELL	unknown	小椋一宏 Kazuhiro Ogura	activist	7.8M	¥1,477	-80.8%	¥240M ($1.5M)
2025-04-02	BUY	unknown	株式会社強羅 Gora Co., Ltd.	activist	300.0K	¥1,477	-	¥443M ($2.9M)
2024-11-05	BUY	unknown	株式会社強羅 Gora Co., Ltd.	activist	300.0K	¥1,139	-	¥342M ($2.2M)
2024-11-05	SELL	unknown	小椋一宏 Kazuhiro Ogura	activist	7.9M	¥1,139	-134.5%	¥355M ($2.3M)
2024-10-07	BUY	Market Buy	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	3.2M	¥1,123	+137.8%	¥369M ($2.4M)
2024-10-07	BUY	Market Buy	アセットマネジメントOneインターナショナル Asset Management One International Ltd.	other	65.2K	¥1,123	-	-
2024-08-22	BUY	Market Buy	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.8M	¥991	+169.5%	¥577M ($3.7M)
2024-08-22	BUY	Market Buy	アセットマネジメントOneインターナショナル Asset Management One International Ltd.	other	65.2K	¥991	+169.5%	¥3M ($21K)
2024-08-14	SELL	unknown	宮本和明 Kazuaki Miyamoto	activist	3.8M	¥935	-185.7%	¥325M ($2.1M)
2024-08-14	SELL	unknown	永留義己 Yoshiki Nagatome	strategic	3.4M	¥935	-185.7%	¥325M ($2.1M)
2024-08-14	BUY	unknown	株式会社トレコ Treco Co., Ltd.	strategic	350.0K	¥935	-	¥327M ($2.1M)
2024-08-14	BUY	unknown	株式会社ヨイミカンアセットマネジメント Yoimikan Asset Management Co., Ltd.	strategic	350.0K	¥935	-	¥327M ($2.1M)
2024-08-07	BUY	unknown	アセットマネジメントOneインターナショナル Asset Management One International Ltd.	other	60.2K	¥926	+188.4%	¥56M ($360K)
2024-08-07	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	2.3M	¥926	+188.4%	¥2.1B ($13.5M)
2024-04-26	BUY	Market Buy	宮本和明 Kazuaki Miyamoto	activist	4.1M	¥1,043	+156.1%	¥3M ($22K)
2023-12-25	BUY	Market Buy	永留義己 Yoshiki Nagatome	strategic	3.7M	¥1,195	+123.5%	¥4M ($25K)
2023-04-14	SELL	unknown	宮本和明 Kazuaki Miyamoto	activist	4.1M	¥757	-252.8%	¥5M ($32K)
2023-02-22	SELL	unknown	フィデリティ投信株式会社 FIL Investments (Japan) Limited	other	1.2M	¥785	-240.3%	¥834M ($5.4M)
2023-02-07	SELL	unknown	フィデリティ投信株式会社 FIL Investments (Japan) Limited	other	2.3M	¥1,026	-160.3%	¥464M ($3.0M)
2022-06-07	BUY	Market Buy	フィデリティ投信株式会社 FIL Investments (Japan) Limited	other	2.7M	¥965	+176.8%	¥436M ($2.8M)
2022-04-22	BUY	Market Buy	フィデリティ投信株式会社 FIL Investments (Japan) Limited	other	2.3M	¥1,049	+154.6%	¥631M ($4.1M)
2022-04-07	BUY	unknown	フィデリティ投信株式会社 FIL Investments (Japan) Limited	other	1.7M	¥1,099	+143.0%	¥1.8B ($11.9M)
2022-04-07	SELL	unknown	キャピタル・リサーチ・アンド・マネージメント・カンパニー(Capital Research and Management Company) Capital Research and Management Company	unknown	0	¥1,099	-143.0%	¥2.8B ($18.0M)
2022-03-18	SELL	Market Buy	アーチザン・インベストメンツ・ジーピー・エルエルシー(Artisan Investments GP LLC) Artisan Investments GP LLC	passive	882.1K	¥873	-206.0%	¥888M ($5.7M)
2022-03-08	SELL	unknown	永留義己 Yoshiki Nagatome	strategic	3.7M	¥794	-236.4%	¥5M ($33K)
2022-02-03	SELL	Market Buy	ジェー・ピー・モルガン・セキュリティーズ・ピーエルシー J.P. Morgan Securities plc	other	67.7K	¥1,168	-128.7%	¥1.1B ($6.8M)
2022-02-03	BUY	Market Buy	JPモルガン・アセット・マネジメント株式会社 JPMorgan Asset Management (Japan) Limited	passive	973.1K	¥1,168	+128.7%	¥1.1B ($7.2M)

Showing the 50 most recent of 95 filings.

Frequently asked questions

Who has been buying Hennge K.K. stock?: 18 distinct investors have filed 30 disclosed large-shareholding filings in Hennge K.K. (4475), most recently on 2026-02-17. 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 Hennge K.K. have?: Hennge K.K. has 30 buy-side and 36 sell-side disclosures on record, covering ¥19.1B ($123.3M) in total reported value, spanning 2021-03-18 to 2026-02-17.
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.