Who has been buying Satudora Holdings Co.,Ltd. stock?

9 distinct investors have filed 69 disclosed large-shareholding filings in Satudora Holdings Co.,Ltd. (3544), most recently on 2025-10-15. 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 Satudora Holdings Co.,Ltd. have?

Satudora Holdings Co.,Ltd. has 69 buy-side and 5 sell-side disclosures on record, covering ¥1.2B ($7.8M) in total reported value, spanning 2022-05-11 to 2025-10-15.

Where does StockDrifts get Satudora Holdings 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.

Satudora Holdings Co.,Ltd. 3544

Company

サツドラホールディングス株式会社Satudora Holdings Co.,Ltd.

Investors

Buys

Total Value

¥1.2B ($7.8M)

Avg Return

+18.26%

Last Filing

2025-10-15

Satudora Holdings Co.,Ltd. (3544) has 69 disclosed large-shareholding filings and 5 disclosed disposals on record, filed by 9 distinct investors. Together those filings cover ¥1.2B ($7.8M) in reported transaction value. The earliest filing StockDrifts holds for Satudora Holdings Co.,Ltd. is dated 2022-05-11; the most recent is 2025-10-15. 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 +18.26%, 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
2026-08-12	BUY	unknown	富山浩樹	unknown	11.8K	¥1,249	+0.0%	¥15M ($95K)
2026-08-12	BUY	unknown	テラ株式会社	activist	7.3M	¥1,249	+0.0%	¥9.1B ($58.7M)
2026-08-10	BUY	unknown	富山浩樹	unknown	11.8K	¥1,251	-0.2%	¥15M ($95K)
2026-08-10	BUY	unknown	テラ株式会社	activist	7.3M	¥1,251	-0.2%	¥9.1B ($58.8M)
2026-08-10	BUY	unknown	富山光惠	strategic	966	¥1,251	-0.2%	¥1M ($8K)
2026-08-10	BUY	unknown	富山浩樹	strategic	11.8K	¥1,251	-0.2%	¥15M ($95K)
2026-08-10	BUY	unknown	株式会社トミーコーポレーション	strategic	5.0M	¥1,251	-0.2%	¥6.2B ($40.2M)
2026-07-17	BUY	Market Buy	米原まき	activist	831.8K	¥1,222	+2.2%	¥9M ($56K)
2026-07-17	BUY	Market Buy	廣岡聖司	activist	914.3K	¥1,222	+2.2%	¥31M ($202K)
2026-07-17	BUY	Market Buy	株式会社青空商事	activist	496.2K	¥1,222	+2.2%	¥606M ($3.9M)
2026-07-17	BUY	Market Buy	株式会社三原色	activist	1.2M	¥1,222	+2.2%	¥3M ($22K)
2026-07-07	BUY	Market Buy	株式会社青空商事	activist	496.2K	¥1,247	+0.0%	¥14M ($92K)
2026-07-07	BUY	Market Buy	株式会社三原色	activist	1.2M	¥1,247	+0.0%	¥85M ($550K)
2026-07-07	BUY	Market Buy	米原まき	activist	824.8K	¥1,247	+0.0%	¥66M ($424K)
2026-07-07	BUY	Market Buy	廣岡聖司	activist	888.3K	¥1,247	+0.0%	¥57M ($367K)
2026-06-30	BUY	Market Buy	米原まき	activist	772.3K	¥1,300	-3.2%	¥15M ($96K)
2026-06-30	BUY	Market Buy	米原まき	activist	772.3K	¥1,300	-3.2%	¥15M ($96K)
2026-06-30	BUY	Market Buy	廣岡聖司	activist	842.2K	¥1,300	-3.2%	¥74M ($478K)
2026-06-30	BUY	Market Buy	株式会社青空商事	activist	485.2K	¥1,300	-3.2%	¥111M ($716K)
2026-06-30	BUY	Market Buy	株式会社三原色	activist	1.1M	¥1,300	-3.2%	¥31M ($203K)
2026-06-30	BUY	Market Buy	廣岡聖司	activist	842.2K	¥1,300	-3.2%	¥74M ($478K)
2026-06-30	BUY	Market Buy	株式会社青空商事	activist	485.2K	¥1,300	-3.2%	¥111M ($716K)
2026-06-30	BUY	Market Buy	株式会社三原色	activist	1.1M	¥1,300	-3.2%	¥31M ($203K)
2026-06-26	SELL	unknown	富山浩樹	strategic	0	¥1,253	-0.4%	¥2M ($12K)
2026-06-26	BUY	Market Buy	米原まき	activist	731.3K	¥1,253	+0.4%	¥144M ($932K)
2026-06-26	BUY	Market Buy	米原まき	activist	759.8K	¥1,253	+0.4%	¥36M ($230K)
2026-06-26	BUY	Market Buy	米原まき	activist	731.3K	¥1,253	+0.4%	¥144M ($932K)
2026-06-26	BUY	Market Buy	廣岡聖司	activist	717.6K	¥1,253	+0.4%	¥37M ($242K)
2026-06-26	BUY	Market Buy	株式会社青空商事	activist	253.9K	¥1,253	+0.4%	¥54M ($345K)
2026-06-26	BUY	Market Buy	米原まき	activist	759.8K	¥1,253	+0.4%	¥36M ($230K)
2026-06-26	BUY	Market Buy	廣岡聖司	activist	785.2K	¥1,253	+0.4%	¥86M ($552K)
2026-06-26	BUY	Market Buy	株式会社青空商事	activist	399.8K	¥1,253	+0.4%	¥184M ($1.2M)
2026-06-26	BUY	Market Buy	株式会社三原色	activist	1.1M	¥1,253	+0.4%	¥84M ($541K)
2026-06-26	BUY	Market Buy	廣岡聖司	activist	717.6K	¥1,253	+0.4%	¥37M ($242K)
2026-06-26	BUY	Market Buy	株式会社青空商事	activist	253.9K	¥1,253	+0.4%	¥54M ($345K)
2026-06-26	BUY	Market Buy	株式会社三原色	activist	1.0M	¥1,253	+0.4%	¥37M ($242K)
2026-06-26	BUY	Market Buy	廣岡聖司	activist	785.2K	¥1,253	+0.4%	¥86M ($552K)
2026-06-26	BUY	Market Buy	株式会社青空商事	activist	399.8K	¥1,253	+0.4%	¥184M ($1.2M)
2026-06-26	BUY	Market Buy	株式会社三原色	activist	1.1M	¥1,253	+0.4%	¥84M ($541K)
2026-06-26	BUY	Market Buy	株式会社三原色	activist	1.0M	¥1,253	+0.4%	¥37M ($242K)
2026-06-26	SELL	unknown	株式会社トミーコーポレーション	strategic	0	¥1,253	-0.4%	¥6.2B ($40.2M)
2026-06-26	SELL	unknown	富山光惠	strategic	0	¥1,253	-0.4%	¥2M ($12K)
2026-06-26	BUY	unknown	富山睦浩(相続人代表富山浩樹)	other	1.1K	¥1,253	+0.4%	¥1M ($9K)
2026-06-26	BUY	unknown	富山光惠	strategic	966	¥1,253	+0.4%	¥1M ($8K)
2026-06-26	BUY	unknown	富山浩樹	strategic	11.8K	¥1,253	+0.4%	¥15M ($96K)
2026-06-26	BUY	unknown	株式会社トミーコーポレーション	strategic	5.0M	¥1,253	+0.4%	¥6.2B ($40.2M)
2026-06-26	BUY	Market Buy	米原まき	activist	759.8K	¥1,253	+0.4%	¥36M ($230K)
2026-06-26	BUY	Market Buy	廣岡聖司	activist	785.2K	¥1,253	+0.4%	¥86M ($552K)
2026-06-26	BUY	Market Buy	株式会社青空商事	activist	399.8K	¥1,253	+0.4%	¥184M ($1.2M)
2026-06-26	BUY	Market Buy	株式会社三原色	activist	1.1M	¥1,253	+0.4%	¥84M ($541K)

Showing the 50 most recent of 155 filings.

Frequently asked questions

Who has been buying Satudora Holdings Co.,Ltd. stock?: 9 distinct investors have filed 69 disclosed large-shareholding filings in Satudora Holdings Co.,Ltd. (3544), most recently on 2025-10-15. 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 Satudora Holdings Co.,Ltd. have?: Satudora Holdings Co.,Ltd. has 69 buy-side and 5 sell-side disclosures on record, covering ¥1.2B ($7.8M) in total reported value, spanning 2022-05-11 to 2025-10-15.
Where does StockDrifts get Satudora Holdings 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 Satudora Holdings Co.,Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.