Who has been buying Shinko Shoji Co., Ltd. stock?

11 distinct investors have filed 19 disclosed large-shareholding filings in Shinko Shoji Co., Ltd. (8141), most recently on 2026-04-02. 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 Shinko Shoji Co., Ltd. have?

Shinko Shoji Co., Ltd. has 19 buy-side and 14 sell-side disclosures on record, covering ¥10.1B ($65.3M) in total reported value, spanning 2021-06-04 to 2026-04-02.

Where does StockDrifts get Shinko Shoji 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.

Shinko Shoji Co., Ltd. 8141

Company

新光商事株式会社Shinko Shoji Co., Ltd.

Investors

Buys

Total Value

¥10.1B ($65.3M)

Avg Return

+56.60%

Last Filing

2026-04-02

Shinko Shoji Co., Ltd. (8141) has 19 disclosed large-shareholding filings and 14 disclosed disposals on record, filed by 11 distinct investors. Together those filings cover ¥10.1B ($65.3M) in reported transaction value. The earliest filing StockDrifts holds for Shinko Shoji Co., Ltd. is dated 2021-06-04; the most recent is 2026-04-02. 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 +56.60%, 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
2026-08-14	SELL	Market Buy	サンドグローブキャピタルマネジメントエルエルピー(Sand Grove Capital Management LLP) Sand Grove Capital Management LLP	passive	775.4K	¥1,570	+0.0%	¥1.8B ($11.4M)
2026-08-06	SELL	unknown	北井暁夫	other	0	¥1,566	-0.3%	¥1.5B ($9.8M)
2026-08-06	SELL	unknown	有限会社キタイアンドカンパニー	other	0	¥1,566	-0.3%	¥2.3B ($14.9M)
2026-08-06	SELL	unknown	北井暁夫	other	0	¥1,566	-0.3%	¥1.5B ($9.8M)
2026-08-06	SELL	unknown	有限会社キタイアンドカンパニー	other	0	¥1,566	-0.3%	¥2.3B ($14.9M)
2026-08-05	BUY	acquisition	加賀電子株式会社 KAGA ELECTRONICS CO.,LTD.	activist	21.5M	¥1,566	+0.3%	¥33.6B ($216.7M)
2026-06-22	BUY	Market Buy	サンドグローブキャピタルマネジメントエルエルピー(Sand Grove Capital Management LLP) Sand Grove Capital Management LLP	passive	1.9M	¥1,599	+0.4%	¥555M ($3.6M)
2026-06-15	BUY	Market Buy	サンドグローブキャピタルマネジメントエルエルピー(Sand Grove Capital Management LLP) Sand Grove Capital Management LLP	passive	1.6M	¥1,577	+0.7%	¥2.4B ($15.8M)
2026-06-03	SELL	unknown	野村絢	unknown	0	¥1,579	-0.5%	¥896M ($5.8M)
2026-06-03	SELL	unknown	株式会社シティインデックスファースト	other	1.4M	¥1,579	-0.5%	¥916M ($5.9M)
2026-06-02	SELL	unknown	野村絢	other	568.9K	¥1,579	+0.9%	¥837M ($5.4M)
2026-06-02	BUY	unknown	株式会社シティインデックスファースト	other	2.0M	¥1,579	-0.9%	¥3.1B ($20.2M)
2026-06-01	SELL	unknown	野村絢	other	1.1M	¥1,580	+0.9%	¥960M ($6.2M)
2026-06-01	BUY	unknown	株式会社シティインデックスファースト	other	2.0M	¥1,580	-0.9%	¥3.1B ($20.2M)
2026-05-28	SELL	unknown	野村絢	other	1.7M	¥1,579	+0.9%	¥715M ($4.6M)
2026-05-28	BUY	unknown	株式会社シティインデックスファースト	other	2.0M	¥1,579	-0.9%	¥3.1B ($20.2M)
2026-05-27	SELL	unknown	株式会社シティインデックスファースト	other	2.0M	¥1,595	+0.9%	¥5M ($32K)
2026-05-27	SELL	unknown	野村絢	other	2.2M	¥1,595	+0.9%	¥1.1B ($7.3M)
2026-05-27	BUY	unknown	株式会社シティインデックスイレブンス	unknown	0	¥1,595	-0.9%	-
2026-05-25	BUY	Market Buy	北井暁夫	other	967.0K	¥1,600	-1.3%	¥288M ($1.9M)
2026-05-25	BUY	Market Buy	有限会社キタイアンドカンパニー	other	1.5M	¥1,600	-1.3%	¥432M ($2.8M)
2026-05-25	BUY	Market Buy	北井暁夫	other	967.0K	¥1,600	-1.3%	¥288M ($1.9M)
2026-05-25	BUY	Market Buy	有限会社キタイアンドカンパニー	other	1.5M	¥1,600	-1.3%	¥432M ($2.8M)
2026-04-02	BUY	unknown	株式会社シティインデックスファースト	activist	2.0M	¥1,269	+26.2%	¥523M ($3.4M)
2026-04-02	BUY	unknown	野村絢	activist	2.9M	¥1,269	+26.2%	¥3.6B ($23.5M)
2026-04-02	BUY	unknown	株式会社シティインデックスイレブンス	activist	100	¥1,269	+26.2%	¥127K ($819)
2026-03-30	SELL	unknown	株式会社レノ	unknown	0	¥1,250	-28.1%	¥202M ($1.3M)
2026-03-30	BUY	unknown	株式会社シティインデックスファースト	activist	1.6M	¥1,250	+28.1%	¥632M ($4.1M)
2026-03-30	BUY	unknown	野村絢	activist	2.9M	¥1,250	+28.1%	¥3.6B ($23.1M)
2026-03-30	BUY	unknown	株式会社シティインデックスイレブンス	activist	100	¥1,250	+28.1%	¥125K ($806)
2026-02-09	BUY	unknown	株式会社レノ	activist	162.3K	¥1,075	-43.2%	¥250M ($1.6M)
2026-02-09	BUY	unknown	株式会社シティインデックスファースト	activist	1.1M	¥1,075	+43.2%	¥1.6B ($10.6M)
2026-02-09	BUY	unknown	野村絢	activist	2.9M	¥1,075	-43.2%	¥4.4B ($28.5M)
2026-02-09	BUY	unknown	株式会社シティインデックスイレブンス	activist	100	¥1,075	-43.2%	¥154K ($993)
2026-01-16	BUY	Market Buy	株式会社シティインデックスファースト	activist	871.8K	¥1,070	+43.8%	¥1.3B ($8.7M)
2026-01-16	BUY	Market Buy	野村絢	activist	2.9M	¥1,070	-43.8%	¥4.4B ($28.5M)
2026-01-16	BUY	Market Buy	株式会社シティインデックスイレブンス	activist	100	¥1,070	-43.8%	¥154K ($993)
2025-11-12	BUY	Market Buy	株式会社シティインデックスファースト City Index First Co., Ltd.	activist	541.6K	¥1,060	+45.2%	¥371M ($2.4M)
2025-11-12	BUY	Market Buy	野村絢 Aya Nomura (Murakami family)	activist	2.9M	¥1,060	+45.2%	¥3.0B ($19.6M)
2025-11-12	BUY	Market Buy	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	100	¥1,060	+45.2%	¥106K ($684)
2025-10-24	SELL	Market Buy	ディスリーン・グループ・エルピー(Discerene Group LP) Discerene Group LP	passive	1.3M	¥1,030	-49.4%	¥339M ($2.2M)
2025-10-07	SELL	Market Buy	ディスリーン・グループ・エルピー(Discerene Group LP) Discerene Group LP	passive	1.6M	¥1,042	-47.7%	¥330M ($2.1M)
2025-10-03	BUY	Market Buy	野村絢 Aya Nomura (Murakami family)	activist	2.9M	¥1,053	+46.1%	¥686M ($4.4M)
2025-10-03	BUY	Market Buy	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	100	¥1,053	+46.1%	¥105K ($679)
2025-10-03	BUY	Market Buy	株式会社シティインデックスファースト City Index First Co., Ltd.	activist	191.5K	¥1,053	+46.1%	¥202M ($1.3M)
2025-09-16	SELL	Market Buy	ディスリーン・グループ・エルピー(Discerene Group LP) Discerene Group LP	passive	1.9M	¥1,006	-53.0%	¥315M ($2.0M)
2025-09-05	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	499.5K	¥1,021	+50.7%	¥510M ($3.3M)
2025-09-05	BUY	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	other	1.1M	¥1,021	+50.7%	¥1.1B ($7.1M)
2025-09-04	BUY	Market Buy	ディスリーン・グループ・エルピー(Discerene Group LP) Discerene Group LP	passive	2.2M	¥1,045	+47.3%	¥340M ($2.2M)
2025-08-26	SELL	Market Buy	ディスリーン・グループ・エルピー(Discerene Group LP) Discerene Group LP	passive	2.3M	¥960	-60.3%	¥401M ($2.6M)

Showing the 50 most recent of 75 filings.

Frequently asked questions

Who has been buying Shinko Shoji Co., Ltd. stock?: 11 distinct investors have filed 19 disclosed large-shareholding filings in Shinko Shoji Co., Ltd. (8141), most recently on 2026-04-02. 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 Shinko Shoji Co., Ltd. have?: Shinko Shoji Co., Ltd. has 19 buy-side and 14 sell-side disclosures on record, covering ¥10.1B ($65.3M) in total reported value, spanning 2021-06-04 to 2026-04-02.
Where does StockDrifts get Shinko Shoji 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 Shinko Shoji Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.