Who has been buying Rhythm Co.,Ltd. stock?

8 distinct investors have filed 78 disclosed large-shareholding filings in Rhythm Co.,Ltd. (7769), 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 Rhythm Co.,Ltd. have?

Rhythm Co.,Ltd. has 78 buy-side and 41 sell-side disclosures on record, covering ¥16.4B ($105.8M) in total reported value, spanning 2021-09-01 to 2026-05-14.

Where does StockDrifts get Rhythm 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.

Rhythm Co.,Ltd. 7769

Company

リズム株式会社Rhythm Co.,Ltd.

Investors

Buys

Total Value

¥16.4B ($105.8M)

Avg Return

+41.68%

Last Filing

2026-05-14

Rhythm Co.,Ltd. (7769) has 78 disclosed large-shareholding filings and 41 disclosed disposals on record, filed by 8 distinct investors. Together those filings cover ¥16.4B ($105.8M) in reported transaction value. The earliest filing StockDrifts holds for Rhythm Co.,Ltd. is dated 2021-09-01; 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 +41.68%, 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
2026-05-14	BUY	Market Buy	株式会社DOE5パーセント	passive	100	¥3,420	+5.7%	¥342K ($2K)
2026-05-14	SELL	Market Buy	植島幹九郎	passive	378.9K	¥3,420	-5.7%	¥347M ($2.2M)
2026-03-10	SELL	Market Buy	植島幹九郎	passive	480.8K	¥4,015	+11.0%	¥1.7B ($11.1M)
2026-03-10	BUY	Market Buy	株式会社DOE5パーセント	passive	100	¥4,015	+11.0%	¥358K ($2K)
2026-03-10	BUY	Market Buy	株式会社DOE5パーセント	passive	100	¥4,015	+11.0%	¥358K ($2K)
2026-03-10	SELL	Market Buy	植島幹九郎	passive	480.8K	¥4,015	+11.0%	¥1.7B ($11.1M)
2026-03-06	SELL	Market Buy	植島幹九郎	passive	502.9K	¥4,085	+12.5%	¥1.8B ($11.6M)
2026-03-06	SELL	Market Buy	植島幹九郎	passive	502.9K	¥4,085	+12.5%	¥1.8B ($11.6M)
2026-03-06	BUY	Market Buy	株式会社DOE5パーセント	passive	100	¥4,085	+12.5%	¥358K ($2K)
2026-03-06	BUY	Market Buy	株式会社DOE5パーセント	passive	100	¥4,085	+12.5%	¥358K ($2K)
2026-01-19	BUY	Market Buy	株式会社DOE5パーセント	passive	100	¥4,140	+13.6%	¥358K ($2K)
2026-01-19	SELL	Market Buy	植島幹九郎	passive	588.5K	¥4,140	+13.6%	¥2.1B ($13.6M)
2025-07-31	SELL	Market Buy	株式会社ナチュラリ Naturali Co., Ltd.	passive	0	¥3,025	-18.2%	¥1.1B ($6.9M)
2025-07-31	BUY	Market Buy	植島幹九郎 Kankuro Ueshima	passive	674.9K	¥3,025	+18.2%	¥1.6B ($10.2M)
2025-07-31	SELL	Market Buy	株式会社DOE5パーセント DOE5% Co., Ltd.	passive	100	¥3,025	-18.2%	¥507M ($3.3M)
2025-07-30	BUY	Market Buy	株式会社ナチュラリ Naturali Co., Ltd.	passive	355.5K	¥3,025	+18.2%	¥1.1B ($6.9M)
2025-07-30	SELL	Market Buy	株式会社UESHIMA UESHIMA Co., Ltd.	passive	0	¥3,025	-18.2%	¥459M ($3.0M)
2025-07-30	BUY	Market Buy	植島幹九郎 Kankuro Ueshima	passive	152.0K	¥3,025	+18.2%	¥459M ($3.0M)
2025-07-30	BUY	Market Buy	株式会社DOE5パーセント DOE5% Co., Ltd.	passive	167.5K	¥3,025	+18.2%	¥507M ($3.3M)
2025-07-29	BUY	Market Buy	株式会社ナチュラリ Naturali Co., Ltd.	passive	355.5K	¥3,035	+17.8%	¥1.1B ($7.0M)
2025-07-29	BUY	Market Buy	株式会社UESHIMA UESHIMA Co., Ltd.	passive	151.9K	¥3,035	+17.8%	¥461M ($3.0M)
2025-07-29	BUY	Market Buy	植島幹九郎 Kankuro Ueshima	passive	100	¥3,035	+17.8%	¥304K ($2K)
2025-07-29	BUY	Market Buy	株式会社ナチュラリ Naturali Co., Ltd.	passive	355.5K	¥3,035	+17.8%	¥1.1B ($7.0M)
2025-07-29	BUY	Market Buy	株式会社UESHIMA UESHIMA Co., Ltd.	passive	151.9K	¥3,035	+17.8%	¥461M ($3.0M)
2025-07-29	BUY	Market Buy	植島幹九郎 Kankuro Ueshima	passive	100	¥3,035	+17.8%	¥304K ($2K)
2025-07-29	BUY	Market Buy	株式会社DOE5パーセント DOE5% Co., Ltd.	passive	167.5K	¥3,035	+17.8%	¥508M ($3.3M)
2025-07-29	BUY	Market Buy	株式会社DOE5パーセント DOE5% Co., Ltd.	passive	167.5K	¥3,035	+17.8%	¥508M ($3.3M)
2025-06-30	SELL	Market Buy	株式会社UESHIMA UESHIMA Co., Ltd.	passive	71.9K	¥3,130	-14.2%	¥373M ($2.4M)
2025-06-30	SELL	Market Buy	植島幹九郎 Kankuro Ueshima	passive	100	¥3,130	-14.2%	¥1.5B ($9.9M)
2025-06-30	SELL	Market Buy	植島幹九郎 Kankuro Ueshima	passive	489.5K	¥3,130	-14.2%	¥562M ($3.6M)
2025-06-30	SELL	Market Buy	植島幹九郎 Kankuro Ueshima	passive	893.6K	¥3,130	-14.2%	¥911M ($5.9M)
2025-06-30	BUY	Market Buy	植島幹九郎 Kankuro Ueshima	passive	1.2M	¥3,130	+14.2%	¥10M ($68K)
2025-06-30	BUY	Market Buy	株式会社DOE5パーセント DOE5% Co., Ltd.	passive	918.9K	¥3,130	+14.2%	¥2.9B ($18.6M)
2025-06-30	BUY	Market Buy	株式会社UESHIMA UESHIMA Co., Ltd.	passive	990.9K	¥3,130	+14.2%	¥3.1B ($20.0M)
2025-06-30	SELL	Market Buy	株式会社DOE5パーセント DOE5% Co., Ltd.	passive	135.2K	¥3,130	-14.2%	¥2.5B ($15.8M)
2025-06-30	SELL	Market Buy	株式会社UESHIMA UESHIMA Co., Ltd.	passive	190.9K	¥3,130	-14.2%	¥2.5B ($16.2M)
2025-06-30	BUY	Market Buy	株式会社DOE5パーセント DOE5% Co., Ltd.	passive	117.5K	¥3,130	+14.2%	¥368M ($2.4M)
2025-06-30	BUY	Market Buy	株式会社UESHIMA UESHIMA Co., Ltd.	passive	71.9K	¥3,130	+14.2%	¥225M ($1.5M)
2025-06-30	SELL	Market Buy	株式会社DOE5パーセント DOE5% Co., Ltd.	passive	117.5K	¥3,130	-14.2%	¥55M ($356K)
2025-06-30	SELL	Market Buy	株式会社UESHIMA UESHIMA Co., Ltd.	passive	71.9K	¥3,130	-14.2%	¥373M ($2.4M)
2025-06-30	BUY	Market Buy	株式会社DOE5パーセント DOE5% Co., Ltd.	passive	117.5K	¥3,130	+14.2%	¥368M ($2.4M)
2025-06-30	BUY	Market Buy	株式会社UESHIMA UESHIMA Co., Ltd.	passive	71.9K	¥3,130	+14.2%	¥225M ($1.5M)
2025-06-30	BUY	Market Buy	株式会社ナチュラリ Naturali Co., Ltd.	passive	355.5K	¥3,130	+14.2%	¥1.1B ($7.2M)
2025-06-30	BUY	Market Buy	株式会社DOE5パーセント DOE5% Co., Ltd.	passive	167.5K	¥3,130	+14.2%	¥157M ($1.0M)
2025-06-30	BUY	Market Buy	株式会社UESHIMA UESHIMA Co., Ltd.	passive	151.9K	¥3,130	+14.2%	¥249M ($1.6M)
2025-06-30	SELL	Market Buy	株式会社DOE5パーセント DOE5% Co., Ltd.	passive	117.5K	¥3,130	-14.2%	¥55M ($356K)
2025-06-30	SELL	Market Buy	植島幹九郎 Kankuro Ueshima	passive	669.5K	¥3,130	-14.2%	¥703M ($4.5M)
2025-06-30	SELL	Market Buy	植島幹九郎 Kankuro Ueshima	passive	669.5K	¥3,130	-14.2%	¥703M ($4.5M)
2025-06-30	SELL	Market Buy	植島幹九郎 Kankuro Ueshima	passive	489.5K	¥3,130	-14.2%	¥562M ($3.6M)
2025-04-01	BUY	Market Buy	植島幹九郎 Kankuro Ueshima	activist	1.2M	¥3,710	-3.6%	¥81M ($522K)

Showing the 50 most recent of 193 filings.

Frequently asked questions

Who has been buying Rhythm Co.,Ltd. stock?: 8 distinct investors have filed 78 disclosed large-shareholding filings in Rhythm Co.,Ltd. (7769), 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 Rhythm Co.,Ltd. have?: Rhythm Co.,Ltd. has 78 buy-side and 41 sell-side disclosures on record, covering ¥16.4B ($105.8M) in total reported value, spanning 2021-09-01 to 2026-05-14.
Where does StockDrifts get Rhythm 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 Rhythm Co.,Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.