Who has been buying ADR120S, Inc. stock?

16 distinct investors have filed 22 disclosed large-shareholding filings in ADR120S, Inc. (3750), most recently on 2026-05-08. 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 ADR120S, Inc. have?

ADR120S, Inc. has 22 buy-side and 20 sell-side disclosures on record, covering ¥8.4B ($54.1M) in total reported value, spanning 2021-06-04 to 2026-05-08.

Where does StockDrifts get ADR120S, Inc. 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.

ADR120S, Inc. 3750

Company

株式会社力の源ホールディングスADR120S, Inc.

Investors

Buys

Total Value

¥8.4B ($54.1M)

Avg Return

-16.72%

Last Filing

2026-05-08

ADR120S, Inc. (3750) has 22 disclosed large-shareholding filings and 20 disclosed disposals on record, filed by 16 distinct investors. Together those filings cover ¥8.4B ($54.1M) in reported transaction value. The earliest filing StockDrifts holds for ADR120S, Inc. is dated 2021-06-04; the most recent is 2026-05-08. 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 -16.72%, 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
2026-05-08	BUY	Market Buy	株式会社東京ウエルズ	passive	823.2K	¥819	-2.3%	¥674M ($4.3M)
2026-05-08	BUY	Market Buy	窪田恵介	passive	102.4K	¥819	-2.3%	¥84M ($541K)
2026-05-08	BUY	Market Buy	窪田芳郎	passive	376.2K	¥819	-2.3%	¥308M ($2.0M)
2025-10-22	BUY	unknown	FTLキャピタルマネジメント株式会社 FTL Capital Management K.K	other	986.4K	¥850	-3.4%	¥838M ($5.4M)
2025-07-15	BUY	Market Buy	株式会社UESHIMA UESHIMA Co., Ltd.	unknown	41.3K	¥916	-10.4%	¥38M ($244K)
2025-07-15	BUY	Market Buy	株式会社ナチュラリ Naturali Co., Ltd.	activist	351.5K	¥916	-10.4%	¥322M ($2.1M)
2025-07-15	BUY	Market Buy	株式会社UESHIMA UESHIMA Co., Ltd.	activist	41.3K	¥916	-10.4%	¥38M ($244K)
2025-07-15	SELL	Market Buy	植島幹九郎 Kankuro Ueshima	activist	0	¥916	+10.4%	¥413M ($2.7M)
2025-04-09	BUY	Market Buy	株式会社UESHIMA UESHIMA Co., Ltd.	activist	41.3K	¥667	+23.1%	¥27M ($177K)
2025-04-09	BUY	Market Buy	植島幹九郎 Kankuro Ueshima	activist	451.2K	¥667	+23.1%	¥301M ($1.9M)
2025-04-09	BUY	Market Buy	株式会社UESHIMA UESHIMA Co., Ltd.	unknown	41.3K	¥667	+23.1%	¥28M ($178K)
2025-03-06	BUY	Market Buy	橋本征道 Hashimoto Masamichi	passive	1.7M	¥906	-9.4%	¥194M ($1.3M)
2025-03-05	SELL	Market Buy	堀江聡寧 Toshiyasu Horie	passive	460.8K	¥906	+9.4%	¥160M ($1.0M)
2024-07-26	BUY	Market Buy	カタリスト・インベストメント・グループ株式会社 Catalyst Investment Group Co.,Ltd.	activist	952.9K	¥954	-13.9%	¥152M ($984K)
2024-05-31	SELL	Market Buy	白浜教男 Norio Shirahama	passive	299.8K	¥1,029	+20.2%	¥54M ($350K)
2024-05-31	BUY	Market Buy	カタリスト・インベストメント・グループ株式会社 Catalyst Investment Group Co.,Ltd.	activist	793.3K	¥1,029	-20.2%	¥301M ($1.9M)
2024-05-31	SELL	Market Buy	堀江聡寧 Toshiyasu Horie	passive	637.3K	¥1,029	+20.2%	¥174M ($1.1M)
2024-03-28	BUY	negotiated	カタリスト・インベストメント・グループ株式会社 Catalyst Investment Group Co.,Ltd.	activist	500.0K	¥990	-17.1%	¥495M ($3.2M)
2024-03-28	BUY	negotiated	カタリスト・インベストメント・グループ株式会社 Catalyst Investment Group Co.,Ltd.	activist	500.0K	¥990	-17.1%	¥495M ($3.2M)
2024-03-27	BUY	Market Buy	株式会社HGキャピタル HG CAPITAL CO.,LTD.	passive	1.2M	¥1,037	-20.8%	¥262M ($1.7M)
2024-03-27	SELL	Market Buy	株式会社HGキャピタル HG CAPITAL CO.,LTD.	passive	1.2M	¥1,037	+20.8%	¥262M ($1.7M)
2024-03-22	SELL	Market Buy	ACA株式会社 ACA Inc,	activist	230.3K	¥1,068	+23.1%	¥263M ($1.7M)
2024-01-10	BUY	Market Buy	白浜教男 Norio Shirahama	passive	353.3K	¥1,141	-28.1%	¥403M ($2.6M)
2024-01-10	BUY	Market Buy	白浜教男 Norio Shirahama	passive	353.3K	¥1,141	-28.1%	¥403M ($2.6M)
2024-01-10	BUY	Market Buy	白浜教男 Norio Shirahama	passive	353.3K	¥1,141	-28.1%	¥403M ($2.6M)
2024-01-10	BUY	Market Buy	白浜教男 Norio Shirahama	passive	353.3K	¥1,141	-28.1%	¥403M ($2.6M)
2024-01-10	BUY	Market Buy	白浜教男 Norio Shirahama	passive	353.3K	¥1,141	-28.1%	¥403M ($2.6M)
2024-01-10	BUY	Market Buy	堀江聡寧 Toshiyasu Horie	activist	710.9K	¥1,141	-28.1%	¥811M ($5.2M)
2024-01-10	BUY	Market Buy	堀江聡寧 Toshiyasu Horie	passive	710.9K	¥1,141	-28.1%	¥811M ($5.2M)
2024-01-10	BUY	Market Buy	堀江聡寧 Toshiyasu Horie	passive	806.4K	¥1,141	-28.1%	¥109M ($703K)
2024-01-10	BUY	Market Buy	橋本征道 Hashimoto Masamichi	passive	1.4M	¥1,141	-28.1%	¥714M ($4.6M)
2024-01-10	BUY	Market Buy	堀江聡寧 Toshiyasu Horie	passive	806.4K	¥1,141	-28.1%	¥109M ($703K)
2024-01-10	BUY	Market Buy	堀江聡寧 Toshiyasu Horie	passive	806.4K	¥1,141	-28.1%	¥109M ($703K)
2024-01-09	SELL	Market Buy	ACA株式会社 ACA Inc,	activist	2.7M	¥1,152	+28.7%	¥2.0B ($13.1M)
2024-01-09	BUY	Market Buy	ACA株式会社 ACA Inc,	activist	2.7M	¥1,152	-28.7%	¥3.1B ($20.0M)
2024-01-09	BUY	Market Buy	株式会社東京ウエルズ TOKYO WELD CO.,LTD.	passive	823.2K	¥1,152	-28.7%	¥948M ($6.1M)
2024-01-09	BUY	Market Buy	株式会社東京ウエルズ TOKYO WELD CO.,LTD.	passive	823.2K	¥1,152	-28.7%	¥948M ($6.1M)
2024-01-09	BUY	Market Buy	ACA株式会社 ACA Inc,	activist	2.7M	¥1,152	-28.7%	¥3.1B ($20.0M)
2024-01-05	SELL	Market Buy	ACA株式会社 ACA Inc,	activist	2.7M	¥1,147	+28.4%	¥2.0B ($13.1M)
2024-01-05	SELL	Market Buy	ACA株式会社 ACA Inc,	activist	476.9K	¥1,147	+28.4%	¥2.5B ($16.3M)
2024-01-05	BUY	Market Buy	ACA株式会社 ACA Inc,	activist	2.7M	¥1,147	-28.4%	¥2.0B ($13.1M)
2024-01-05	BUY	Market Buy	ACA株式会社 ACA Inc,	activist	2.7M	¥1,147	-28.4%	¥3.1B ($19.9M)
2024-01-05	BUY	Market Buy	ACA株式会社 ACA Inc,	activist	476.9K	¥1,147	-28.4%	¥2.5B ($16.3M)
2024-01-04	BUY	Market Buy	ACA株式会社 ACA Inc,	activist	2.7M	¥1,137	-27.8%	¥2.0B ($13.0M)
2024-01-04	BUY	Market Buy	ACA株式会社 ACA Inc,	activist	2.7M	¥1,137	-27.8%	¥2.0B ($13.0M)
2023-12-28	BUY	Market Buy	株式会社HGキャピタル HG CAPITAL CO.,LTD.	passive	1.4M	¥1,102	-25.5%	¥990M ($6.4M)
2023-12-28	BUY	Market Buy	株式会社HGキャピタル HG CAPITAL CO.,LTD.	passive	1.4M	¥1,102	-25.5%	¥990M ($6.4M)
2023-08-31	SELL	Market Buy	株式会社HGキャピタル HG Capital Co.,Ltd.	passive	527.5K	¥1,074	+23.6%	¥114M ($736K)
2023-08-31	BUY	Market Buy	株式会社HGキャピタル HG Capital Co.,Ltd.	passive	527.5K	¥1,074	-23.6%	¥114M ($736K)
2023-06-13	SELL	Market Buy	株式会社HGキャピタル HG Capital Co.,Ltd.	passive	634.1K	¥1,048	+21.7%	¥99M ($640K)

Showing the 50 most recent of 70 filings.

Frequently asked questions

Who has been buying ADR120S, Inc. stock?: 16 distinct investors have filed 22 disclosed large-shareholding filings in ADR120S, Inc. (3750), most recently on 2026-05-08. 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 ADR120S, Inc. have?: ADR120S, Inc. has 22 buy-side and 20 sell-side disclosures on record, covering ¥8.4B ($54.1M) in total reported value, spanning 2021-06-04 to 2026-05-08.
Where does StockDrifts get ADR120S, Inc. 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 ADR120S, Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.