Who has been buying Digital Information Technologies Corporation stock?

8 distinct investors have filed 9 disclosed large-shareholding filings in Digital Information Technologies Corporation (3916), most recently on 2026-03-23. 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 Digital Information Technologies Corporation have?

Digital Information Technologies Corporation has 9 buy-side and 4 sell-side disclosures on record, covering ¥3.9B ($25.5M) in total reported value, spanning 2021-12-21 to 2026-03-23.

Where does StockDrifts get Digital Information Technologies Corporation 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.

Digital Information Technologies Corporation 3916

Company

デジタル・インフォメーション・テクノロジー株式会社Digital Information Technologies Corporation

Investors

Buys

Total Value

¥3.9B ($25.5M)

Avg Return

+18.74%

Last Filing

2026-03-23

Digital Information Technologies Corporation (3916) has 9 disclosed large-shareholding filings and 4 disclosed disposals on record, filed by 8 distinct investors. Together those filings cover ¥3.9B ($25.5M) in reported transaction value. The earliest filing StockDrifts holds for Digital Information Technologies Corporation is dated 2021-12-21; the most recent is 2026-03-23. 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 +18.74%, 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
2026-08-04	SELL	unknown	ジー・ダブル・アンド・ケー・インベストメント・マネジメント・エルエルシー(GW&K INVESTMENT MANAGEMENT, LLC) GW&K INVESTMENT MANAGEMENT, LLC	other	1.7M	¥927	-5.2%	¥411M ($2.7M)
2026-07-23	BUY	Market Buy	エフアイエーエムエルエルシー (FIAM LLC) FIAM LLC	other	2.6M	¥914	+6.7%	¥439M ($2.8M)
2026-06-22	BUY	Market Buy	エフアイエーエムエルエルシー (FIAM LLC) FIAM LLC	other	2.1M	¥810	+21.5%	¥444M ($2.9M)
2026-06-08	BUY	unknown	エフアイエーエムエルエルシー (FIAM LLC) FIAM LLC	other	1.6M	¥833	+4.4%	¥1.3B ($8.6M)
2026-03-23	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	2.1M	¥946	+0.6%	¥519M ($3.3M)
2026-02-18	BUY	Market Buy	FIインベストメント株式会社	strategic	1.9M	¥1,050	+9.3%	¥1.8B ($11.7M)
2026-02-18	BUY	Market Buy	YIインベストメント株式会社	strategic	2.0M	¥1,050	+9.3%	¥1.9B ($12.3M)
2026-02-18	BUY	Market Buy	NIインベストメント株式会社	strategic	4.0M	¥1,050	+9.3%	¥3.8B ($24.6M)
2026-02-18	BUY	Market Buy	市川聡	activist	2.2M	¥1,050	-9.3%	¥2.1B ($13.4M)
2026-01-22	BUY	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	1.6M	¥1,387	-31.4%	¥2.2B ($14.3M)
2025-11-18	SELL	unknown	ジー・ダブル・アンド・ケー・インベストメント・マネジメント・エルエルシー(GW&K INVESTMENT MANAGEMENT, LLC) GW&K INVESTMENT MANAGEMENT, LLC	other	1.1M	¥1,301.5	+26.9%	¥206M ($1.3M)
2025-05-09	BUY	negotiated	FIインベストメント株式会社 FI Investment Co., Ltd.	strategic	950.8K	¥1,251.5	-23.9%	¥1.2B ($7.7M)
2025-05-09	BUY	negotiated	YIインベストメント株式会社 YI Investment Co., Ltd.	strategic	1.0M	¥1,251.5	-23.9%	¥1.3B ($8.1M)
2025-05-09	BUY	negotiated	NIインベストメント株式会社 NI Investment Co., Ltd.	strategic	2.0M	¥1,251.5	-23.9%	¥2.5B ($16.1M)
2025-05-09	BUY	negotiated	市川聡 Satoshi Ichikawa	activist	1.1M	¥1,251.5	-23.9%	¥1.4B ($8.8M)
2024-12-06	BUY	negotiated	市川聡 Satoshi Ichikawa	activist	1.1M	¥1,109.5	-14.2%	¥1.2B ($7.8M)
2024-12-06	BUY	negotiated	FIインベストメント株式会社 FI Investment Co., Ltd.	strategic	950.8K	¥1,109.5	-14.2%	¥1.1B ($6.8M)
2024-12-06	BUY	negotiated	YIインベストメント株式会社 YI Investment Co., Ltd.	strategic	1.0M	¥1,109.5	-14.2%	¥1.1B ($7.2M)
2024-12-06	BUY	negotiated	NIインベストメント株式会社 NI Investment Co., Ltd.	strategic	2.0M	¥1,109.5	-14.2%	¥2.2B ($14.3M)
2024-10-10	BUY	negotiated	FIインベストメント株式会社 FI Investment Co., Ltd.	strategic	950.8K	¥1,064	-10.5%	¥1.0B ($6.5M)
2024-10-10	BUY	negotiated	YIインベストメント株式会社 YI Investment Co., Ltd.	strategic	1.0M	¥1,064	-10.5%	¥1.1B ($6.9M)
2024-10-10	BUY	negotiated	NIインベストメント株式会社 NI Investment Co., Ltd.	strategic	2.0M	¥1,064	-10.5%	¥2.1B ($13.7M)
2024-10-10	BUY	negotiated	市川聡 Satoshi Ichikawa	activist	1.1M	¥1,064	-10.5%	¥1.2B ($7.5M)
2024-08-29	BUY	negotiated	FIインベストメント株式会社 FI Investment Co., Ltd.	strategic	950.8K	¥908	+4.8%	¥863M ($5.6M)
2024-08-29	BUY	negotiated	YIインベストメント株式会社 YI Investment Co., Ltd.	strategic	1.0M	¥908	+4.8%	¥908M ($5.9M)
2024-08-29	BUY	negotiated	NIインベストメント株式会社 NI Investment Co., Ltd.	strategic	2.0M	¥908	+4.8%	¥1.8B ($11.7M)
2024-08-29	BUY	negotiated	市川聡 Satoshi Ichikawa	activist	1.1M	¥908	+4.8%	¥992M ($6.4M)
2023-08-02	BUY	Market Buy	ジー・ダブル・アンド・ケー・インベストメント・マネジメント・エルエルシー(GW&K INVESTMENT MANAGEMENT, LLC) GW&K INVESTMENT MANAGEMENT, LLC	other	1.2M	¥875.5	+8.7%	¥262M ($1.7M)
2023-04-05	BUY	Market Buy	ジー・ダブル・アンド・ケー・インベストメント・マネジメント・エルエルシー(GW&K INVESTMENT MANAGEMENT, LLC) GW&K INVESTMENT MANAGEMENT, LLC	other	949.0K	¥825	+15.4%	¥138M ($891K)
2023-03-07	BUY	negotiated	FIインベストメント株式会社 FI Investment Co., Ltd.	strategic	950.8K	¥827	+15.1%	¥786M ($5.1M)
2023-03-07	BUY	negotiated	YIインベストメント株式会社 YI Investment Co., Ltd.	strategic	1.0M	¥827	+15.1%	¥827M ($5.3M)
2023-03-07	BUY	negotiated	NIインベストメント株式会社 NI Investment Co., Ltd.	strategic	2.0M	¥827	+15.1%	¥1.7B ($10.7M)
2023-03-07	BUY	negotiated	市川聡 Satoshi Ichikawa	activist	1.1M	¥827	+15.1%	¥904M ($5.8M)
2023-03-07	BUY	negotiated	市川聡 Satoshi Ichikawa	activist	1.1M	¥827	+15.1%	¥904M ($5.8M)
2023-03-07	BUY	negotiated	FIインベストメント株式会社 FI Investment Co., Ltd.	strategic	950.8K	¥827	+15.1%	¥786M ($5.1M)
2023-03-07	BUY	negotiated	YIインベストメント株式会社 YI Investment Co., Ltd.	strategic	1.0M	¥827	+15.1%	¥827M ($5.3M)
2023-03-07	BUY	negotiated	NIインベストメント株式会社 NI Investment Co., Ltd.	strategic	2.0M	¥827	+15.1%	¥1.7B ($10.7M)
2022-08-17	BUY	negotiated	FIインベストメント株式会社 FI Investment Co., Ltd.	strategic	950.8K	¥713	+33.5%	¥678M ($4.4M)
2022-08-17	BUY	negotiated	YIインベストメント株式会社 YI Investment Co., Ltd.	strategic	1.0M	¥713	+33.5%	¥713M ($4.6M)
2022-08-17	BUY	negotiated	NIインベストメント株式会社 NI Investment Co., Ltd.	strategic	2.0M	¥713	+33.5%	¥1.4B ($9.2M)
2022-08-17	BUY	negotiated	市川聡 Satoshi Ichikawa	activist	1.1M	¥713	+33.5%	¥779M ($5.0M)
2022-05-30	BUY	unknown	ジー・ダブル・アンド・ケー・インベストメント・マネジメント・エルエルシー(GW&K INVESTMENT MANAGEMENT, LLC) GW&K INVESTMENT MANAGEMENT, LLC	other	780.8K	¥729	+30.6%	¥569M ($3.7M)
2022-04-28	BUY	negotiated	FIインベストメント株式会社 FI Investment Co., Ltd.	strategic	950.8K	¥599	+58.9%	¥570M ($3.7M)
2022-04-28	BUY	negotiated	YIインベストメント株式会社 YI Investment Co., Ltd.	strategic	1.0M	¥599	+58.9%	¥599M ($3.9M)
2022-04-28	BUY	negotiated	NIインベストメント株式会社 NI Investment Co., Ltd.	strategic	2.0M	¥599	+58.9%	¥1.2B ($7.7M)
2022-04-28	BUY	negotiated	市川聡 Satoshi Ichikawa	activist	1.1M	¥599	+58.9%	¥655M ($4.2M)
2022-04-06	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	718.9K	¥661.5	-43.9%	¥151M ($973K)
2022-03-22	BUY	negotiated	市川聡 Satoshi Ichikawa	activist	1.1M	¥633	+50.4%	¥692M ($4.5M)
2022-03-22	BUY	negotiated	FIインベストメント株式会社 FI Investment Co., Ltd.	strategic	950.8K	¥633	+50.4%	¥602M ($3.9M)
2022-03-22	BUY	negotiated	YIインベストメント株式会社 YI Investment Co., Ltd.	strategic	1.0M	¥633	+50.4%	¥633M ($4.1M)

Showing the 50 most recent of 61 filings.

Frequently asked questions

Who has been buying Digital Information Technologies Corporation stock?: 8 distinct investors have filed 9 disclosed large-shareholding filings in Digital Information Technologies Corporation (3916), most recently on 2026-03-23. 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 Digital Information Technologies Corporation have?: Digital Information Technologies Corporation has 9 buy-side and 4 sell-side disclosures on record, covering ¥3.9B ($25.5M) in total reported value, spanning 2021-12-21 to 2026-03-23.
Where does StockDrifts get Digital Information Technologies Corporation 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 Digital Information Technologies Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.