Who has been buying Sata Construction Co., Ltd. stock?

3 distinct investors have filed 15 disclosed large-shareholding filings in Sata Construction Co., Ltd. (1826), most recently on 2026-02-12. 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 Sata Construction Co., Ltd. have?

Sata Construction Co., Ltd. has 15 buy-side and 3 sell-side disclosures on record, covering ¥1.7B ($11.2M) in total reported value, spanning 2021-12-15 to 2026-02-12.

Where does StockDrifts get Sata Construction Co., Ltd. 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.

Sata Construction Co., Ltd. 1826

Company

佐田建設株式会社Sata Construction Co., Ltd.

Investors

Buys

Total Value

¥1.7B ($11.2M)

Avg Return

+22.51%

Last Filing

2026-02-12

Sata Construction Co., Ltd. (1826) has 15 disclosed large-shareholding filings and 3 disclosed disposals on record, filed by 3 distinct investors. Together those filings cover ¥1.7B ($11.2M) in reported transaction value. The earliest filing StockDrifts holds for Sata Construction Co., Ltd. is dated 2021-12-15; the most recent is 2026-02-12. 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 +22.51%, 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
2026-02-12	BUY	Market Buy	株式会社スノーボールキャピタル Snowball Capital Inc.	passive	1.1M	¥1,264	-16.2%	¥1.4B ($9.2M)
2025-11-06	BUY	Market Buy	株式会社スノーボールキャピタル Snowball Capital Inc.	passive	1.1M	¥1,175	-9.9%	¥1.3B ($8.5M)
2025-11-06	SELL	Market Buy	重田光時 Mitsutoki Shigeta	passive	0	¥1,175	+9.9%	¥1.3B ($8.5M)
2025-10-29	BUY	Market Buy	株式会社スノーボールキャピタル Snowball Capital Inc.	passive	0	¥1,091	-2.9%	-
2025-10-29	BUY	Market Buy	重田光時 Mitsutoki Shigeta	passive	1.1M	¥1,091	-2.9%	¥36M ($229K)
2025-09-22	SELL	Market Buy	UGSアセットマネジメント株式会社 UGS Asset Management Co.,Ltd.	activist	172.0K	¥1,193	+11.2%	¥2.6B ($16.6M)
2025-08-14	BUY	Market Buy	重田光時 Mitsutoki Shigeta	passive	1.1M	¥1,247	-15.1%	¥194M ($1.2M)
2025-07-25	BUY	Market Buy	UGSアセットマネジメント株式会社 UGS Asset Management Co.,Ltd.	activist	2.3M	¥1,127	-6.0%	¥189M ($1.2M)
2025-06-19	BUY	Market Buy	重田光時 Mitsutoki Shigeta	passive	939.5K	¥1,087	-2.6%	¥170M ($1.1M)
2025-04-23	BUY	Market Buy	重田光時 Mitsutoki Shigeta	passive	782.7K	¥1,077	-1.7%	¥843M ($5.4M)
2025-02-06	BUY	Market Buy	UGSアセットマネジメント株式会社 UGS Asset Management Co.,Ltd.	activist	2.2M	¥994	+6.5%	¥173M ($1.1M)
2025-01-15	BUY	Market Buy	UGSアセットマネジメント株式会社 UGS Asset Management Co.,Ltd.	activist	2.0M	¥983	+7.7%	¥154M ($994K)
2024-12-10	BUY	Market Buy	UGSアセットマネジメント株式会社 UGS Asset Management Co.,Ltd.	activist	1.8M	¥998	+6.1%	¥172M ($1.1M)
2024-08-13	BUY	Market Buy	UGSアセットマネジメント株式会社 UGS Asset Management Co.,Ltd.	activist	1.7M	¥861	+23.0%	¥176M ($1.1M)
2024-03-21	BUY	Market Buy	UGSアセットマネジメント株式会社 UGS Asset Management Co.,Ltd.	activist	1.4M	¥753	+40.6%	¥119M ($769K)
2024-01-19	BUY	Market Buy	UGSアセットマネジメント株式会社 UGS Asset Management Co.,Ltd.	activist	1.3M	¥631	+67.8%	¥102M ($657K)
2023-11-28	BUY	Market Buy	UGSアセットマネジメント株式会社 UGS Asset Management Co.,Ltd.	activist	1.1M	¥621	+70.5%	¥102M ($659K)
2023-10-26	BUY	Market Buy	UGSアセットマネジメント株式会社 UGS Asset Management Co.,Ltd.	activist	963.8K	¥622	+70.3%	¥100M ($648K)
2023-10-12	BUY	Market Buy	UGSアセットマネジメント株式会社 UGS Asset Management Co.,Ltd.	activist	802.4K	¥578	+83.2%	¥464M ($3.0M)
2021-12-15	SELL	Market Buy	重田光時 Mitsutoki Shigeta	passive	675.6K	¥475	-123.0%	¥48M ($309K)

Frequently asked questions

Who has been buying Sata Construction Co., Ltd. stock?: 3 distinct investors have filed 15 disclosed large-shareholding filings in Sata Construction Co., Ltd. (1826), most recently on 2026-02-12. 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 Sata Construction Co., Ltd. have?: Sata Construction Co., Ltd. has 15 buy-side and 3 sell-side disclosures on record, covering ¥1.7B ($11.2M) in total reported value, spanning 2021-12-15 to 2026-02-12.
Where does StockDrifts get Sata Construction Co., Ltd. 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 Sata Construction Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.