Who has been buying Shinwa Wise Holdings Co.,Ltd. stock?

8 distinct investors have filed 17 disclosed large-shareholding filings in Shinwa Wise Holdings Co.,Ltd. (2437), most recently on 2026-04-07. 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 Shinwa Wise Holdings Co.,Ltd. have?

Shinwa Wise Holdings Co.,Ltd. has 17 buy-side and 15 sell-side disclosures on record, covering ¥2.6B ($16.8M) in total reported value, spanning 2021-09-16 to 2026-04-07.

Where does StockDrifts get Shinwa Wise Holdings 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.

Shinwa Wise Holdings Co.,Ltd. 2437

Company

Ｓｈｉｎｗａ　Ｗｉｓｅ　Ｈｏｌｄｉｎｇｓ株式会社Shinwa Wise Holdings Co.,Ltd.

Investors

Buys

Total Value

¥2.6B ($16.8M)

Avg Return

+41.16%

Last Filing

2026-04-07

Shinwa Wise Holdings Co.,Ltd. (2437) has 17 disclosed large-shareholding filings and 15 disclosed disposals on record, filed by 8 distinct investors. Together those filings cover ¥2.6B ($16.8M) in reported transaction value. The earliest filing StockDrifts holds for Shinwa Wise Holdings Co.,Ltd. is dated 2021-09-16; the most recent is 2026-04-07. 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 +41.16%, 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
2026-06-19	BUY	Market Buy	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	676.0K	¥568	+4.4%	¥51M ($327K)
2026-04-07	BUY	negotiated	Catalyst Art Investments株式会社 Catalyst Art Investments Co., Ltd.	activist	3.7M	¥779	-45.1%	¥2.9B ($18.4M)
2026-02-13	SELL	unknown	Catalyst Art Investments株式会社 Catalyst Art Investments Co., Ltd.	other	1.5M	¥567	+1.8%	¥22M ($145K)
2026-02-13	BUY	negotiated	Catalyst Art Investments株式会社 Catalyst Art Investments Co., Ltd.	activist	3.7M	¥567	-1.8%	¥2.1B ($13.4M)
2026-02-05	SELL	unknown	株式会社ＳＢＩ証券 SBI SECURITIES Co.,Ltd.	other	587.1K	¥555	-0.4%	¥52M ($335K)
2025-12-23	SELL	unknown	リーテイルブランディング株式会社	passive	78.6K	¥378	-47.4%	¥44M ($282K)
2025-12-23	SELL	unknown	秋元之浩	unknown	250.0K	¥378	-47.4%	¥139M ($898K)
2025-12-19	BUY	Market Buy	Catalyst Art Investments株式会社 Catalyst Art Investments	activist	3.7M	¥416	+33.9%	¥880M ($5.7M)
2025-12-19	BUY	negotiated	Catalyst Art Investments株式会社 Catalyst Art Investments Co., Ltd.	activist	3.7M	¥416	+33.9%	¥897M ($5.8M)
2025-07-22	BUY	unknown	株式会社SBI証券 SBI SECURITIES Co.,Ltd.	other	681.3K	¥281	+98.2%	¥191M ($1.2M)
2025-05-23	BUY	unknown	秋元之浩 Yukihiro Akimoto	strategic	1.4M	¥361	+54.3%	¥517M ($3.3M)
2025-05-23	SELL	unknown	リーテイルブランディング株式会社 Retail Branding Co.,Ltd	strategic	1.1M	¥361	-54.3%	¥7M ($46K)
2025-05-23	SELL	unknown	リーテイルブランディング株式会社 Retail Branding Co.,Ltd	strategic	1.1M	¥361	-54.3%	¥7M ($46K)
2025-05-23	BUY	unknown	秋元之浩 Yukihiro Akimoto	strategic	1.4M	¥361	+54.3%	¥517M ($3.3M)
2024-12-26	SELL	unknown	倉田陽一郎 Yoichiro Kurata	activist	1.2M	¥300	-85.7%	¥116M ($750K)
2024-12-23	BUY	Market Buy	Catalyst Art Investments株式会社 Catalyst Art Investments Co., Ltd.	other	1.5M	¥269	+107.1%	¥111M ($717K)
2024-12-23	SELL	unknown	倉田陽一郎 Yoichiro Kurata	activist	1.2M	¥269	-107.1%	¥104M ($673K)
2024-12-09	SELL	unknown	倉田陽一郎 Yoichiro Kurata	activist	1.6M	¥245	-127.3%	¥252M ($1.6M)
2024-12-09	BUY	unknown	Catalyst Art Investments株式会社 Catalyst Art Investments Co., Ltd.	other	1.1M	¥245	+127.3%	¥270M ($1.7M)
2024-06-17	BUY	unknown	倉田陽一郎 Yoichiro Kurata	activist	2.7M	¥475	+17.3%	¥1.3B ($8.4M)
2024-05-24	SELL	Market Buy	リーテイルブランディング株式会社 Retail Branding Co.,Ltd	strategic	1.1M	¥517	-7.7%	¥27M ($172K)
2024-05-24	BUY	Market Buy	倉田陽一郎 Yoichiro Kurata	activist	2.7M	¥517	+7.7%	¥290M ($1.9M)
2024-05-24	BUY	Market Buy	秋元之浩 Yukihiro Akimoto	strategic	1.4M	¥517	+7.7%	¥83M ($537K)
2024-05-10	BUY	unknown	倉田陽一郎 Yoichiro Kurata	activist	2.0M	¥495	+12.5%	¥988M ($6.4M)
2024-03-11	SELL	unknown	倉田陽一郎 Yoichiro Kurata	activist	863.2K	¥500	-11.4%	¥20M ($128K)
2024-03-11	BUY	Market Buy	倉田陽一郎 Yoichiro Kurata	activist	2.0M	¥500	+11.4%	¥536M ($3.5M)
2024-03-01	BUY	Market Buy	リーテイルブランディング株式会社 Retail Branding Co.,Ltd	strategic	1.1M	¥523	+6.5%	¥205M ($1.3M)
2024-03-01	BUY	Market Buy	秋元之浩 Yukihiro Akimoto	strategic	1.2M	¥523	+6.5%	¥156M ($1.0M)
2024-03-01	SELL	unknown	伊勢彦信 Hikonobu Ise	activist	1.1M	¥523	-6.5%	¥391M ($2.5M)
2024-03-01	BUY	unknown	伊勢彦信 Hikonobu Ise	activist	1.1M	¥523	+6.5%	¥391M ($2.5M)
2023-12-05	BUY	unknown	リーテイルブランディング株式会社 Retail Branding Co.,Ltd	unknown	708.6K	¥596	-6.5%	¥422M ($2.7M)
2023-12-05	SELL	unknown	秋元之浩 Yukihiro Akimoto	strategic	867.8K	¥596	+6.5%	¥13M ($82K)
2023-12-05	SELL	unknown	秋元之浩 Yukihiro Akimoto	strategic	867.8K	¥596	+6.5%	¥13M ($82K)
2023-12-05	SELL	unknown	秋元之浩 Yukihiro Akimoto	strategic	867.8K	¥596	+6.5%	¥13M ($82K)
2022-09-08	BUY	unknown	伊勢彦信 HIKONOBU ISE	strategic	1.8M	¥907	-38.6%	¥1.6B ($10.6M)
2022-09-08	BUY	unknown	伊勢彦信 HIKONOBU ISE	strategic	1.8M	¥907	-38.6%	¥1.6B ($10.6M)
2022-02-22	BUY	Market Buy	リーテイルブランディング株式会社 Retail Branding Co.,Ltd	strategic	633.6K	¥394	+41.4%	¥250M ($1.6M)
2022-02-22	BUY	Market Buy	秋元之浩 Yukihiro Akimoto	strategic	857.8K	¥394	+41.4%	¥129M ($829K)
2022-02-21	BUY	unknown	岡崎奈美子 Namiko Okazaki	strategic	25.2K	¥387	+43.9%	¥10M ($63K)
2022-02-21	BUY	unknown	サイヨトウシユウゲンコウシ(采譽投資有限公司) Saiyotou Yugenkoshi (Kiyuan Investment Co., Ltd.)	activist	330.0K	¥387	+43.9%	¥128M ($824K)
2022-02-21	BUY	unknown	倉田陽一郎 Yoichiro Kurata	activist	340.0K	¥387	+43.9%	¥132M ($849K)
2022-02-21	BUY	unknown	倉田陽一郎 Yoichiro Kurata	activist	863.2K	¥387	+43.9%	¥334M ($2.2M)
2022-02-21	BUY	Market Buy	伊勢彦信 Hikonobu Ise	strategic	1.8M	¥387	+43.9%	¥135M ($872K)
2022-02-21	BUY	unknown	倉田陽一郎 Yoichiro Kurata	activist	863.2K	¥387	+43.9%	¥334M ($2.2M)
2021-09-17	BUY	unknown	リーテイルブランディング株式会社 Retail Branding Co.,Ltd	strategic	633.6K	¥417	+33.6%	¥264M ($1.7M)
2021-09-17	BUY	unknown	秋元之浩 Yukihiro Akimoto	strategic	500.7K	¥417	+33.6%	¥209M ($1.3M)
2021-09-16	BUY	unknown	リーテイルブランディング株式会社 Retail Branding Co.,Ltd	strategic	633.6K	¥421	+32.3%	¥267M ($1.7M)
2021-09-16	BUY	unknown	伊勢彦信 Hikonobu Ise	strategic	1.4M	¥421	+32.3%	¥589M ($3.8M)
2021-09-16	BUY	unknown	秋元之浩 Yukihiro Akimoto	strategic	500.7K	¥421	+32.3%	¥211M ($1.4M)
2021-09-16	BUY	unknown	伊勢彦信 Hikonobu Ise	strategic	1.4M	¥421	+32.3%	¥589M ($3.8M)

Showing the 50 most recent of 54 filings.

Frequently asked questions

Who has been buying Shinwa Wise Holdings Co.,Ltd. stock?: 8 distinct investors have filed 17 disclosed large-shareholding filings in Shinwa Wise Holdings Co.,Ltd. (2437), most recently on 2026-04-07. 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 Shinwa Wise Holdings Co.,Ltd. have?: Shinwa Wise Holdings Co.,Ltd. has 17 buy-side and 15 sell-side disclosures on record, covering ¥2.6B ($16.8M) in total reported value, spanning 2021-09-16 to 2026-04-07.
Where does StockDrifts get Shinwa Wise Holdings 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 Shinwa Wise Holdings Co.,Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.