Who has been buying NSW Inc. stock?

9 distinct investors have filed 9 disclosed large-shareholding filings in NSW Inc. (9739), most recently on 2026-04-30. 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 NSW Inc. have?

NSW Inc. has 9 buy-side and 7 sell-side disclosures on record, covering ¥7.2B ($46.4M) in total reported value, spanning 2022-02-04 to 2026-04-30.

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.

NSW Inc. 9739

Company

日本システムウエア株式会社NSW Inc.

Investors

Buys

Total Value

¥7.2B ($46.4M)

Avg Return

+2.44%

Last Filing

2026-04-30

NSW Inc. (9739) has 9 disclosed large-shareholding filings and 7 disclosed disposals on record, filed by 9 distinct investors. Together those filings cover ¥7.2B ($46.4M) in reported transaction value. The earliest filing StockDrifts holds for NSW Inc. is dated 2022-02-04; the most recent is 2026-04-30. Across these filings the average return since disclosure is +2.44%, 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
2026-09-03	SELL	unknown	多田尚二	unknown	0	¥2,729	+1.4%	¥5.5B ($35.6M)
2026-09-03	BUY	unknown	多田直樹	other	300.3K	¥2,729	-	-
2026-09-03	BUY	Market Buy	株式会社タダ・コーポレーション	other	7.0M	¥2,729	-1.4%	¥5.5B ($35.6M)
2026-07-01	BUY	unknown	株式会社タダ・コーポレーション	other	5.0M	¥2,505	-	-
2026-07-01	BUY	unknown	多田直樹	other	300.3K	¥2,505	-	-
2026-07-01	BUY	unknown	多田尚二	other	2.0M	¥2,505	-	-
2026-07-01	BUY	unknown	株式会社タダ・コーポレーション Tada Corp.	other	5.0M	¥2,505	-	-
2026-06-17	SELL	unknown	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	786.8K	¥2,506	-7.4%	¥11M ($72K)
2026-06-17	BUY	Market Buy	エフアイエーエムエルエルシー FIAM LLC	other	676.1K	¥2,506	+7.4%	¥414M ($2.7M)
2026-06-17	BUY	unknown	フィデリティマネジメントトラストカンパニー Fidelity Management Trust Company	other	27.1K	¥2,506	-	-
2026-06-17	BUY	Market Buy	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	790.8K	¥2,506	+7.4%	¥187M ($1.2M)
2026-06-17	BUY	Market Buy	エフアイエーエムエルエルシー FIAM LLC	other	511.4K	¥2,506	+7.4%	¥190M ($1.2M)
2026-06-17	BUY	Market Buy	フィデリティマネジメントトラストカンパニー Fidelity Management Trust Company	other	26.8K	¥2,506	+7.4%	¥4M ($24K)
2026-06-17	BUY	Market Buy	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	717.4K	¥2,506	+7.4%	¥258M ($1.7M)
2026-06-17	BUY	Market Buy	エフアイエーエムエルエルシー FIAM LLC	other	434.8K	¥2,506	+7.4%	¥146M ($940K)
2026-06-17	BUY	unknown	フィデリティマネジメントトラストカンパニー Fidelity Management Trust Company	other	25.7K	¥2,506	-	-
2026-06-17	BUY	unknown	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	614.0K	¥2,506	-	-
2026-06-17	BUY	Market Buy	エフアイエーエムエルエルシー FIAM LLC	other	377.4K	¥2,506	+7.4%	¥463M ($3.0M)
2026-06-17	BUY	unknown	フィデリティマネジメントトラストカンパニー Fidelity Management Trust Company	other	25.3K	¥2,506	-	-
2026-06-09	BUY	unknown	エフアイエーエムエルエルシー FIAM LLC	other	192.3K	¥2,500	+7.6%	¥481M ($3.1M)
2026-06-09	BUY	unknown	フィデリティマネジメントトラストカンパニー Fidelity Management Trust Company	other	25.3K	¥2,500	+7.6%	¥63M ($407K)
2026-06-09	BUY	unknown	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	614.0K	¥2,500	+7.6%	¥1.5B ($9.9M)
2026-04-30	SELL	unknown	多田修人(相続人代表多田尚二)	other	0	¥2,456	-9.6%	¥3.8B ($24.4M)
2026-04-30	BUY	unknown	株式会社タダ・コーポレーション	other	5.0M	¥2,456	-	-
2026-04-30	BUY	unknown	多田直樹	other	300.3K	¥2,456	-	-
2026-04-30	BUY	Market Buy	多田尚二	other	2.0M	¥2,456	+9.6%	¥4.2B ($27.1M)
2026-04-30	SELL	unknown	多田順子(相続人代表多田尚二)	other	0	¥2,456	-9.6%	¥410M ($2.6M)
2025-04-04	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	628.1K	¥2,713	+0.8%	¥408M ($2.6M)
2024-10-22	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	1.5M	¥2,870	-6.2%	¥462M ($3.0M)
2024-10-22	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	1.5M	¥2,870	-6.2%	¥462M ($3.0M)
2024-06-21	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	1.3M	¥3,235	-16.8%	¥487M ($3.1M)
2024-06-21	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	1.3M	¥3,235	-16.8%	¥487M ($3.1M)
2024-03-07	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	1.2M	¥3,265	-17.6%	¥530M ($3.4M)
2024-03-07	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	1.2M	¥3,265	-17.6%	¥530M ($3.4M)
2023-10-19	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	779.6K	¥2,710	+0.7%	¥408M ($2.6M)
2023-07-06	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	201.0K	¥2,380	-13.1%	¥11M ($69K)
2023-07-06	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	385.4K	¥2,380	+13.1%	¥904M ($5.8M)
2023-06-06	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	205.3K	¥2,463	-9.3%	¥7M ($47K)
2023-06-06	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	604.8K	¥2,463	+9.3%	¥1.5B ($9.5M)
2023-04-07	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	1.0M	¥2,109	+27.6%	¥390M ($2.5M)
2023-04-07	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	1.0M	¥2,109	+27.6%	¥390M ($2.5M)
2023-01-11	BUY	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	831.6K	¥2,030	+32.6%	¥1.7B ($10.9M)
2023-01-11	BUY	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	831.6K	¥2,030	+32.6%	¥1.7B ($10.9M)
2022-02-04	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	208.1K	¥2,134	+26.1%	¥162M ($1.0M)
2022-02-04	SELL	Market Buy	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	911.4K	¥2,134	-26.1%	¥420M ($2.7M)

Frequently asked questions

Who has been buying NSW Inc. stock?: 9 distinct investors have filed 9 disclosed large-shareholding filings in NSW Inc. (9739), most recently on 2026-04-30. 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 NSW Inc. have?: NSW Inc. has 9 buy-side and 7 sell-side disclosures on record, covering ¥7.2B ($46.4M) in total reported value, spanning 2022-02-04 to 2026-04-30.
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.