Who has been buying Systems Engineering Consultants Co.,LTD. stock?

6 distinct investors have filed 3 disclosed large-shareholding filings in Systems Engineering Consultants Co.,LTD. (3741), most recently on 2026-04-07. 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 Systems Engineering Consultants Co.,LTD. have?

Systems Engineering Consultants Co.,LTD. has 3 buy-side and 5 sell-side disclosures on record, covering ¥963M ($6.2M) in total reported value, spanning 2023-09-12 to 2026-04-07.

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.

Systems Engineering Consultants Co.,LTD. 3741

Company

株式会社セックSystems Engineering Consultants Co.,LTD.

Investors

Buys

Total Value

¥963M ($6.2M)

Avg Return

+44.01%

Last Filing

2026-04-07

Systems Engineering Consultants Co.,LTD. (3741) has 3 disclosed large-shareholding filings and 5 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥963M ($6.2M) in reported transaction value. The earliest filing StockDrifts holds for Systems Engineering Consultants Co.,LTD. is dated 2023-09-12; the most recent is 2026-04-07. Across these filings the average return since disclosure is +44.01%, 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
2026-04-07	SELL	unknown	アセットマネジメントOne株式会社	other	379.7K	¥2,924	-12.0%	¥389M ($2.5M)
2026-04-07	BUY	unknown	みずほ証券株式会社	other	15.4K	¥2,924	-	¥45M ($291K)
2025-09-22	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	256.6K	¥2,447.5	+33.8%	¥628M ($4.1M)
2025-08-07	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	209.6K	¥2,550	-28.4%	¥136M ($876K)
2025-06-06	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	262.8K	¥2,590	-26.4%	¥166M ($1.1M)
2024-06-03	BUY	unknown	近石幸博 CHIKAISHI YUKIHIRO	strategic	50.6K	¥2,147.5	-	-
2024-06-03	BUY	unknown	有限会社近石商会 Chikaishi Shokai Co., Ltd.	strategic	158.3K	¥2,147.5	+52.5%	¥335M ($2.2M)
2023-09-25	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	326.6K	¥1,797.5	+82.2%	¥587M ($3.8M)
2023-09-12	BUY	unknown	矢野恭一 YANO KYOICHI	strategic	177.7K	¥1,662.5	-	-
2023-09-12	BUY	unknown	矢野恭一 YANO KYOICHI	strategic	177.7K	¥1,662.5	-	-
2023-09-12	SELL	unknown	有限会社矢野商会 Yano Shokai Co., Ltd.	strategic	1.4M	¥1,662.5	-97.0%	¥166M ($1.1M)
2023-09-12	SELL	unknown	有限会社矢野商会 Yano Shokai Co., Ltd.	strategic	1.4M	¥1,662.5	-97.0%	¥166M ($1.1M)

Frequently asked questions

Who has been buying Systems Engineering Consultants Co.,LTD. stock?: 6 distinct investors have filed 3 disclosed large-shareholding filings in Systems Engineering Consultants Co.,LTD. (3741), most recently on 2026-04-07. 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 Systems Engineering Consultants Co.,LTD. have?: Systems Engineering Consultants Co.,LTD. has 3 buy-side and 5 sell-side disclosures on record, covering ¥963M ($6.2M) in total reported value, spanning 2023-09-12 to 2026-04-07.
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.