Who has been buying SDS HOLDINGS Co.,Ltd. stock?

8 distinct investors have filed 8 disclosed large-shareholding filings in SDS HOLDINGS Co.,Ltd. (1711), most recently on 2026-05-14. 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 SDS HOLDINGS Co.,Ltd. have?

SDS HOLDINGS Co.,Ltd. has 8 buy-side and 31 sell-side disclosures on record, covering ¥3.3B ($21.1M) in total reported value, spanning 2021-06-09 to 2026-05-14.

Where does StockDrifts get SDS 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.

SDS HOLDINGS Co.,Ltd. 1711

Company

株式会社省電舎ホールディングスSDS HOLDINGS Co.,Ltd.

Investors

Buys

Total Value

¥3.3B ($21.1M)

Avg Return

-21.65%

Last Filing

2026-05-14

SDS HOLDINGS Co.,Ltd. (1711) has 8 disclosed large-shareholding filings and 31 disclosed disposals on record, filed by 8 distinct investors. Together those filings cover ¥3.3B ($21.1M) in reported transaction value. The earliest filing StockDrifts holds for SDS HOLDINGS Co.,Ltd. is dated 2021-06-09; the most recent is 2026-05-14. 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 -21.65%, 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
2026-05-26	BUY	Market Buy	株式会社US US Co., Ltd.	passive	1.8M	¥238	-6.7%	¥419M ($2.7M)
2026-05-26	BUY	Market Buy	株式会社US US Co., Ltd.	passive	1.8M	¥238	-6.7%	¥419M ($2.7M)
2026-05-14	BUY	Market Buy	三崎優太 YUTA MISAKI	passive	2.2M	¥252	-11.1%	¥554M ($3.6M)
2026-05-14	BUY	Market Buy	三崎優太 YUTA MISAKI	passive	2.2M	¥252	-11.1%	¥554M ($3.6M)
2026-05-14	BUY	Market Buy	三崎優太 YUTA MISAKI	passive	2.2M	¥252	-11.1%	¥554M ($3.6M)
2026-05-11	BUY	Market Buy	エスクリプトエナジー株式会社 S Crypto Energy Inc.	passive	5.6M	¥256	-12.5%	¥1.4B ($9.2M)
2026-05-11	BUY	Market Buy	エスクリプトエナジー株式会社 S Crypto Energy Inc.	passive	5.6M	¥256	-12.5%	¥1.4B ($9.2M)
2024-12-27	SELL	Market Buy	田口知志 TAGUCHI Satoshi	passive	287.6K	¥305	+7.5%	¥102M ($657K)
2024-12-10	BUY	Market Buy	田口知志 TAGUCHI Satoshi	passive	627.6K	¥252	+11.9%	¥158M ($1.0M)
2024-12-10	SELL	Market Buy	田口知志 TAGUCHI Satoshi	passive	627.6K	¥252	-11.9%	¥72M ($465K)
2024-03-19	BUY	Market Buy	村田美夏 MURATA Mika	passive	540.0K	¥467	-39.6%	¥252M ($1.6M)
2024-03-11	SELL	Market Buy	田口知志 TAGUCHI Satoshi	passive	924.6K	¥438	+35.6%	¥72M ($467K)
2024-03-11	BUY	Market Buy	田口知志 TAGUCHI Satoshi	passive	924.6K	¥438	-35.6%	¥405M ($2.6M)
2024-03-04	BUY	unknown	吉野勝秀 Katsuhide Yoshino	other	2.0M	¥499	-43.5%	¥998M ($6.4M)
2024-03-04	BUY	unknown	吉野勝秀 Katsuhide Yoshino	other	2.0M	¥499	-43.5%	¥998M ($6.4M)
2024-02-19	BUY	Market Buy	田口知志 TAGUCHI Satoshi	passive	1.1M	¥481	-41.4%	¥529M ($3.4M)
2024-01-31	BUY	Market Buy	田口知志 TAGUCHI Satoshi	passive	1.1M	¥446	-36.8%	¥491M ($3.2M)
2024-01-29	SELL	Market Buy	田口知志 TAGUCHI Satoshi	passive	1.1M	¥436	+35.3%	¥156M ($1.0M)
2024-01-29	BUY	Market Buy	田口知志 TAGUCHI Satoshi	passive	1.1M	¥436	-35.3%	¥156M ($1.0M)
2024-01-04	BUY	Market Buy	吉野勝秀 Katsuhide Yoshino	other	2.0M	¥348	-19.0%	¥55M ($352K)
2024-01-04	BUY	Market Buy	田口知志 TAGUCHI Satoshi	passive	1.5M	¥348	-19.0%	¥522M ($3.4M)
2024-01-04	BUY	Market Buy	田口知志 TAGUCHI Satoshi	passive	1.5M	¥348	-19.0%	¥522M ($3.4M)
2024-01-04	BUY	unknown	吉野勝秀 Katsuhide Yoshino	other	2.0M	¥348	-19.0%	¥52M ($335K)
2023-04-06	BUY	unknown	井元義昭 YOSHIAKI IMOTO	strategic	229.0K	¥335	-15.8%	¥92M ($595K)
2023-04-06	SELL	unknown	井元義昭 YOSHIAKI IMOTO	strategic	229.0K	¥335	+15.8%	¥92M ($595K)
2023-04-06	BUY	unknown	井元義昭 YOSHIAKI IMOTO	strategic	229.0K	¥335	-15.8%	¥92M ($595K)
2023-04-04	BUY	unknown	井元義昭 YOSHIAKI IMOTO	strategic	503.5K	¥327	-13.8%	¥33M ($212K)
2023-04-04	SELL	unknown	井元義昭 YOSHIAKI IMOTO	strategic	504.5K	¥327	+13.8%	¥33M ($210K)
2023-04-04	BUY	unknown	井元義昭 YOSHIAKI IMOTO	strategic	503.5K	¥327	-13.8%	¥33M ($212K)
2023-02-03	BUY	unknown	中村健治 Kenji Nakamura	strategic	675.4K	¥352	-19.9%	¥238M ($1.5M)
2023-02-03	SELL	unknown	井元義昭 YOSHIAKI IMOTO	strategic	604.5K	¥352	+19.9%	¥192M ($1.2M)
2023-02-03	BUY	unknown	井元義昭 YOSHIAKI IMOTO	strategic	604.5K	¥352	-19.9%	¥192M ($1.2M)
2023-02-03	SELL	unknown	中村健治 Kenji Nakamura	strategic	350.7K	¥352	+19.9%	¥90M ($579K)
2023-02-03	SELL	unknown	中村健治 Kenji Nakamura	strategic	605.7K	¥352	+19.9%	¥213M ($1.4M)
2022-08-18	SELL	Market Buy	田口知志 TAGUCHI Satoshi	passive	208.2K	¥478	+41.0%	¥131M ($848K)
2022-08-03	SELL	Market Buy	田口知志 TAGUCHI Satoshi	passive	482.7K	¥509	+44.6%	¥48M ($307K)
2022-07-20	SELL	Market Buy	田口知志 TAGUCHI Satoshi	passive	576.6K	¥538	+47.6%	¥56M ($361K)
2022-07-06	SELL	Market Buy	田口知志 TAGUCHI Satoshi	passive	680.0K	¥600	+53.0%	¥130M ($842K)
2022-07-05	SELL	Market Buy	田口知志 TAGUCHI Satoshi	passive	1.2M	¥541	+47.9%	¥89M ($576K)
2022-07-05	SELL	Market Buy	田口知志 TAGUCHI Satoshi	passive	1.1M	¥541	+47.9%	¥77M ($495K)
2022-07-05	SELL	Market Buy	田口知志 TAGUCHI Satoshi	passive	897.7K	¥541	+47.9%	¥86M ($557K)
2022-07-05	BUY	Market Buy	田口知志 TAGUCHI Satoshi	passive	897.7K	¥541	-47.9%	¥86M ($557K)
2022-04-06	SELL	Market Buy	田口知志 TAGUCHI Satoshi	passive	1.4M	¥566	+50.2%	¥76M ($488K)
2022-04-06	BUY	Market Buy	田口知志 TAGUCHI Satoshi	passive	1.4M	¥566	-50.2%	¥76M ($488K)
2022-03-31	SELL	Market Buy	田口知志 TAGUCHI Satoshi	passive	1.6M	¥625	+54.9%	¥13M ($82K)
2022-03-31	SELL	Market Buy	田口知志 TAGUCHI Satoshi	passive	1.5M	¥625	+54.9%	¥52M ($336K)
2022-03-22	SELL	Market Buy	田口知志 TAGUCHI Satoshi	passive	1.7M	¥502	+43.8%	¥4M ($29K)
2022-03-14	SELL	Market Buy	田口知志 TAGUCHI Satoshi	passive	1.8M	¥490	+42.5%	¥48M ($308K)
2022-03-14	SELL	Market Buy	田口知志 TAGUCHI Satoshi	passive	1.7M	¥490	+42.5%	¥36M ($232K)
2022-03-03	SELL	Market Buy	田口知志 TAGUCHI Satoshi	passive	2.2M	¥595	+52.6%	¥54M ($351K)

Showing the 50 most recent of 66 filings.

Frequently asked questions

Who has been buying SDS HOLDINGS Co.,Ltd. stock?: 8 distinct investors have filed 8 disclosed large-shareholding filings in SDS HOLDINGS Co.,Ltd. (1711), most recently on 2026-05-14. 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 SDS HOLDINGS Co.,Ltd. have?: SDS HOLDINGS Co.,Ltd. has 8 buy-side and 31 sell-side disclosures on record, covering ¥3.3B ($21.1M) in total reported value, spanning 2021-06-09 to 2026-05-14.
Where does StockDrifts get SDS 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 SDS HOLDINGS Co.,Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.