Who has been buying Inforich Inc. stock?

27 distinct investors have filed 48 disclosed large-shareholding filings in Inforich Inc. (9338), most recently on 2026-04-27. 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 Inforich Inc. have?

Inforich Inc. has 48 buy-side and 51 sell-side disclosures on record, covering ¥46.6B ($300.7M) in total reported value, spanning 2022-12-21 to 2026-04-27.

Where does StockDrifts get Inforich Inc. 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.

Inforich Inc. 9338

Company

株式会社INFORICHInforich Inc.

Investors

Buys

Total Value

¥46.6B ($300.7M)

Avg Return

+26.41%

Last Filing

2026-04-27

Inforich Inc. (9338) has 48 disclosed large-shareholding filings and 51 disclosed disposals on record, filed by 27 distinct investors. Together those filings cover ¥46.6B ($300.7M) in reported transaction value. The earliest filing StockDrifts holds for Inforich Inc. is dated 2022-12-21; the most recent is 2026-04-27. 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 +26.41%, 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
2026-06-11	SELL	subscription	秋山広宣 Chan, Yat Wah Stpehen	other	940.0K	¥4,530	+0.0%	¥82M ($527K)
2026-04-27	SELL	subscription	秋山広宣 Chan, Yat Wah Stpehen	other	940.0K	¥4,530	-0.1%	¥31M ($202K)
2026-04-22	BUY	unknown	ゴールドマン・サックス証券株式会社	other	0	¥4,535	+0.0%	-
2026-04-22	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	32.7K	¥4,535	+0.0%	¥2.2B ($14.2M)
2026-04-22	SELL	unknown	野村證券株式会社	other	23	¥4,535	+0.0%	¥224M ($1.4M)
2026-04-22	BUY	unknown	ゴールドマン・サックス・アンド・カンパニー・エルエルシー Goldman Sachs & Co. LLC	other	100	¥4,535	+0.0%	¥454K ($3K)
2026-04-22	SELL	unknown	ゴールドマン・サックス・インターナショナル Goldman Sachs International	other	33.8K	¥4,535	+0.0%	¥3.1B ($19.8M)
2026-04-20	SELL	unknown	ジェー・ピー・モルガン・セキュリティーズ・エルエルシー J.P. Morgan Securities LLC	other	7	¥4,535	+0.1%	¥354M ($2.3M)
2026-04-20	SELL	unknown	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	0	¥4,535	+0.1%	¥628M ($4.1M)
2026-04-20	SELL	unknown	JPモルガン証券株式会社	other	400	¥4,535	+0.1%	¥2.3B ($14.8M)
2026-04-10	SELL	unknown	アーカス・インベストメント・リミテッド Arcus Investment Limited Director/Executive Director Edward Cartwright	other	0	¥4,525	+0.0%	¥2.8B ($17.8M)
2026-04-07	SELL	unknown	ユービーエス・エイ・ジー(銀行) UBS AG	other	314.9K	¥4,520	-0.1%	¥1.9B ($12.2M)
2026-04-07	BUY	Market Buy	ゴールドマン・サックス証券株式会社	other	0	¥4,520	+0.1%	¥27M ($173K)
2026-04-07	SELL	subscription	秋山広宣 Chan, Yat Wah Stpehen	other	940.0K	¥4,520	-0.1%	¥3.8B ($24.6M)
2026-04-07	BUY	Market Buy	ゴールドマン・サックス・アンド・カンパニー・エルエルシー Goldman Sachs & Co. LLC	other	100	¥4,520	+0.1%	¥452K ($3K)
2026-04-07	BUY	Market Buy	ゴールドマン・サックス・インターナショナル Goldman Sachs International	other	710.4K	¥4,520	+0.1%	¥917M ($5.9M)
2026-04-07	BUY	subscription	株式会社BCJ-102 K.K. BCJ-102	activist	9.0M	¥4,520	+0.1%	¥31.3B ($201.7M)
2026-04-07	BUY	subscription	株式会社BCJ-102 K.K. BCJ-102	activist	9.0M	¥4,520	+0.1%	¥40.8B ($263.3M)
2026-04-06	SELL	unknown	東海東京証券株式会社 Tokai Tokyo Securities Co., Ltd.	other	0	¥4,520	-0.1%	¥2.2B ($14.5M)
2026-04-03	BUY	unknown	ジェー・ピー・モルガン・セキュリティーズ・エルエルシー J.P. Morgan Securities LLC	other	78.3K	¥4,530	-0.1%	¥63M ($405K)
2026-04-03	SELL	unknown	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	138.6K	¥4,530	+0.1%	¥910M ($5.9M)
2026-04-03	BUY	unknown	JPモルガン証券株式会社	other	506.1K	¥4,530	-0.1%	¥291M ($1.9M)
2026-03-23	SELL	unknown	ベイリー・ギフォード・アンド・カンパニー(Baillie Gifford & Co) Baillie Gifford & Co	other	0	¥4,545	+0.2%	¥2.5B ($16.4M)
2026-03-23	BUY	unknown	ゴールドマン・サックス・アンド・カンパニー・エルエルシー Goldman Sachs & Co. LLC	other	100	¥4,545	-0.2%	¥454K ($3K)
2026-03-23	BUY	unknown	ゴールドマン・サックス・インターナショナル Goldman Sachs International	other	504.6K	¥4,545	-0.2%	¥2.3B ($14.8M)
2026-03-23	BUY	unknown	ゴールドマン・サックス証券株式会社	other	-5.8K	¥4,545	-0.2%	¥26M ($170K)
2026-03-23	BUY	Market Buy	ユービーエス・エイ・ジー(銀行) UBS AG	other	728.1K	¥4,545	-0.2%	¥1.0B ($6.5M)
2026-03-19	BUY	unknown	東海東京証券株式会社 Tokai Tokyo Securities Co., Ltd.	other	493.1K	¥4,545	-0.2%	¥2.2B ($14.5M)
2026-03-18	SELL	Market Buy	ジェー・ピー・モルガン・セキュリティーズ・エルエルシー J.P. Morgan Securities LLC	other	64.0K	¥4,550	+0.3%	¥290M ($1.9M)
2026-03-18	BUY	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	336.8K	¥4,550	-0.3%	¥1.5B ($9.9M)
2026-03-18	BUY	Market Buy	JPモルガン証券株式会社	other	439.7K	¥4,550	-0.3%	¥2.0B ($12.9M)
2026-03-11	BUY	subscription	秋山朋絵	strategic	25.0K	¥4,540	+0.1%	¥113M ($731K)
2026-03-11	BUY	subscription	秋山広宣	other	1.8M	¥4,540	+0.1%	¥8.1B ($52.2M)
2026-03-06	BUY	unknown	ユービーエス・エイ・ジー(銀行) UBS AG	other	506.0K	¥4,540	-0.1%	¥2.3B ($14.8M)
2026-03-05	BUY	unknown	野村證券株式会社	other	49.5K	¥4,545	-0.2%	¥224M ($1.4M)
2026-03-05	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	514.2K	¥4,545	-0.2%	¥2.3B ($15.0M)
2026-03-04	BUY	unknown	ジェー・ピー・モルガン・セキュリティーズ・エルエルシー J.P. Morgan Securities LLC	other	129.5K	¥4,540	-0.1%	¥587M ($3.8M)
2026-03-04	BUY	unknown	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	170.2K	¥4,540	-0.1%	¥772M ($5.0M)
2026-03-04	BUY	unknown	JPモルガン証券株式会社	other	302.5K	¥4,540	-0.1%	¥1.4B ($8.9M)
2026-02-20	BUY	subscription	秋山朋絵	strategic	25.0K	¥4,545	+0.2%	¥113M ($731K)
2026-02-20	SELL	subscription	秋山広宣	other	1.8M	¥4,545	+0.2%	¥8.1B ($52.2M)
2026-02-02	BUY	Market Buy	アーカス・インベストメント・リミテッド Arcus Investment Limited Director/Executive Director Edward Cartwright	other	605.2K	¥1,829	+147.9%	¥189M ($1.2M)
2026-01-13	BUY	unknown	アーカス・インベストメント・リミテッド Arcus Investment Limited Director/Executive Director Edward Cartwright	other	502.0K	¥1,937	+134.1%	¥972M ($6.3M)
2025-12-19	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	362.3K	¥2,037	-122.6%	¥262M ($1.7M)
2025-11-11	SELL	unknown	秋山広宣 Chan, Yat Wah Stpehen	other	1.8M	¥2,597	-74.6%	¥3M ($16K)
2025-11-11	BUY	unknown	秋山朋絵 Tomoe Akiyama	strategic	25.0K	¥2,597	+74.6%	¥65M ($419K)
2025-09-25	SELL	unknown	秋山広宣 Chan, Yat Wah Stpehen	other	1.8M	¥2,480	-82.9%	¥41M ($267K)
2025-09-25	BUY	unknown	秋山朋絵 Tomoe Akiyama	strategic	25.0K	¥2,480	+82.9%	¥62M ($400K)
2025-09-24	BUY	unknown	秋山朋絵 Tomoe Akiyama	strategic	25.0K	¥2,485	+82.5%	¥62M ($401K)
2025-09-24	SELL	unknown	秋山広宣 Chan, Yat Wah Stpehen	other	1.8M	¥2,485	-82.5%	¥41M ($267K)

Showing the 50 most recent of 133 filings.

Frequently asked questions

Who has been buying Inforich Inc. stock?: 27 distinct investors have filed 48 disclosed large-shareholding filings in Inforich Inc. (9338), most recently on 2026-04-27. 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 Inforich Inc. have?: Inforich Inc. has 48 buy-side and 51 sell-side disclosures on record, covering ¥46.6B ($300.7M) in total reported value, spanning 2022-12-21 to 2026-04-27.
Where does StockDrifts get Inforich Inc. 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 Inforich Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.