Who has been buying ExaWizards Inc. stock?

11 distinct investors have filed 17 disclosed large-shareholding filings in ExaWizards Inc. (4259), most recently on 2026-04-23. 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 ExaWizards Inc. have?

ExaWizards Inc. has 17 buy-side and 7 sell-side disclosures on record, covering ¥23.8B ($153.8M) in total reported value, spanning 2022-01-04 to 2026-04-23.

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.

ExaWizards Inc. 4259

Company

株式会社エクサウィザーズExaWizards Inc.

Investors

Buys

Total Value

¥23.8B ($153.8M)

Avg Return

+38.68%

Last Filing

2026-04-23

ExaWizards Inc. (4259) has 17 disclosed large-shareholding filings and 7 disclosed disposals on record, filed by 11 distinct investors. Together those filings cover ¥23.8B ($153.8M) in reported transaction value. The earliest filing StockDrifts holds for ExaWizards Inc. is dated 2022-01-04; the most recent is 2026-04-23. Across these filings the average return since disclosure is +38.68%, 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
2026-04-23	BUY	unknown	株式会社三井住友フィナンシャルグループ Sumitomo Mitsui Financial Group, Inc.	strategic	9.6M	¥732	+18.0%	¥7.0B ($45.1M)
2025-06-19	SELL	unknown	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	1.2M	¥475	-81.9%	¥1.6B ($10.3M)
2024-10-04	BUY	unknown	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	4.5M	¥324	+166.7%	¥1.5B ($9.4M)
2024-09-20	SELL	unknown	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	4.3M	¥317	-172.6%	¥284M ($1.8M)
2024-09-12	SELL	unknown	春田真 Haruta Makoto	activist	1.6M	¥319	-170.8%	¥2.0B ($13.2M)
2024-09-12	SELL	unknown	株式会社ベータカタリスト Beta Catalyst Co., Ltd.	activist	8.2M	¥319	-170.8%	¥199M ($1.3M)
2024-09-12	BUY	unknown	株式会社KH KH Co., Ltd.	activist	3.0M	¥319	-	¥957M ($6.2M)
2024-09-12	BUY	unknown	株式会社RH RH Co., Ltd.	activist	3.0M	¥319	-	¥957M ($6.2M)
2024-04-04	BUY	unknown	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	5.1M	¥502	+72.1%	¥2.6B ($16.5M)
2024-04-04	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	18.8K	¥502	+72.1%	¥499M ($3.2M)
2023-11-21	BUY	Market Buy	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	5.3M	¥399	+116.5%	¥571M ($3.7M)
2023-11-21	BUY	Market Buy	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	698.8K	¥399	-	-
2023-10-19	BUY	unknown	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	3.9M	¥385	+124.4%	¥1.5B ($9.6M)
2023-10-19	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	698.8K	¥385	+124.4%	¥269M ($1.7M)
2023-03-06	SELL	unknown	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	2.6M	¥298	-189.9%	¥491M ($3.2M)
2022-12-21	BUY	unknown	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	4.2M	¥420	+105.7%	¥1.7B ($11.3M)
2022-09-05	SELL	Market Buy	株式会社iSGSインベストメントワークス iSGS Investment Works Inc.	passive	4.0M	¥441	-95.9%	¥610M ($3.9M)
2022-02-07	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	passive	848.3K	¥696	+24.1%	¥564M ($3.6M)
2022-02-07	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	464.4K	¥696	-24.1%	¥6M ($36K)
2022-02-07	BUY	Market Buy	SMBCベンチャーキャピタル株式会社 SMBC Venture Capital Co., Ltd	passive	748.4K	¥696	-	-
2022-01-11	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	passive	3.6M	¥775	+11.5%	¥2.8B ($18.2M)
2022-01-11	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	464.4K	¥775	+11.5%	¥360M ($2.3M)
2022-01-11	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	passive	3.6M	¥775	+11.5%	¥2.8B ($18.2M)
2022-01-11	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	464.4K	¥775	+11.5%	¥360M ($2.3M)
2022-01-11	BUY	Market Buy	SMBCベンチャーキャピタル株式会社 SMBC Venture Capital Co., Ltd	passive	748.4K	¥775	+11.5%	¥580M ($3.7M)
2022-01-05	BUY	unknown	春田真 Makoto HARUTA	strategic	7.4M	¥801	+7.9%	¥5.9B ($38.3M)
2022-01-05	BUY	unknown	株式会社ベータカタリスト Beta Catalyst Co., Ltd.	activist	8.2M	¥801	+7.9%	¥6.6B ($42.3M)
2022-01-04	BUY	Market Buy	株式会社iSGSインベストメントワークス iSGS Investment Works Inc.	passive	5.3M	¥901	-4.1%	¥4.8B ($30.8M)

Frequently asked questions

Who has been buying ExaWizards Inc. stock?: 11 distinct investors have filed 17 disclosed large-shareholding filings in ExaWizards Inc. (4259), most recently on 2026-04-23. 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 ExaWizards Inc. have?: ExaWizards Inc. has 17 buy-side and 7 sell-side disclosures on record, covering ¥23.8B ($153.8M) in total reported value, spanning 2022-01-04 to 2026-04-23.
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.