Who has been buying TB Group Inc. stock?

4 distinct investors have filed 6 disclosed large-shareholding filings in TB Group Inc. (6775), most recently on 2025-08-29. 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 TB Group Inc. have?

TB Group Inc. has 6 buy-side and 25 sell-side disclosures on record, covering ¥1.3B ($8.5M) in total reported value, spanning 2021-08-31 to 2025-08-29.

Where does StockDrifts get TB Group 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.

TB Group Inc. 6775

Company

株式会社TBグループTB Group Inc.

Investors

Buys

Total Value

¥1.3B ($8.5M)

Avg Return

-16.17%

Last Filing

2025-08-29

TB Group Inc. (6775) has 6 disclosed large-shareholding filings and 25 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥1.3B ($8.5M) in reported transaction value. The earliest filing StockDrifts holds for TB Group Inc. is dated 2021-08-31; the most recent is 2025-08-29. 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 -16.17%, 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
2026-07-31	BUY	Market Buy	株式会社グローイングアップ代表取締役中田覚史 Growing Up Inc.	passive	1.7M	¥117	-0.8%	¥199M ($1.3M)
2026-07-31	BUY	Market Buy	株式会社グローイングアップ代表取締役中田覚史 Growing Up Inc.	passive	1.7M	¥117	-0.8%	¥199M ($1.3M)
2025-08-29	BUY	Market Buy	村田三郎 Saburo Murata	strategic	1.5M	¥135	-4.4%	¥168M ($1.1M)
2025-08-29	SELL	unknown	株式会社ホスピタルネット Hospital Net Inc	other	824.0K	¥135	+4.4%	¥159M ($1.0M)
2025-08-29	BUY	Market Buy	株式会社ビッグサンズ bigsons inc	other	705.9K	¥135	-4.4%	¥95M ($615K)
2025-08-08	SELL	unknown	村田三郎 Saburo Murata	strategic	232.3K	¥127	-1.6%	¥6M ($38K)
2025-08-08	SELL	unknown	村田三郎 Saburo Murata	strategic	232.3K	¥127	-1.6%	¥3M ($21K)
2025-08-08	SELL	unknown	村田三郎 Saburo Murata	strategic	232.3K	¥127	-1.6%	¥3M ($21K)
2025-08-08	SELL	unknown	株式会社ビッグサンズ bigsons inc	other	705.9K	¥127	-1.6%	¥10M ($62K)
2025-08-08	SELL	unknown	株式会社ビッグサンズ bigsons inc	other	705.9K	¥127	-1.6%	¥10M ($62K)
2025-08-08	SELL	unknown	株式会社ビッグサンズ bigsons inc	other	705.9K	¥127	-1.6%	¥18M ($117K)
2025-08-07	BUY	unknown	株式会社ホスピタルネット代表取締役武田利信 Hospital Net Inc	other	2.0M	¥128	+0.8%	¥257M ($1.7M)
2025-08-07	BUY	unknown	株式会社ホスピタルネット代表取締役武田利信 Hospital Net Inc	unknown	2.0M	¥128	+0.8%	¥257M ($1.7M)
2023-04-18	SELL	Market Buy	モダンパス合同会社 Modern Path LLC.	passive	631.3K	¥360	+64.2%	¥69M ($446K)
2023-04-14	SELL	Market Buy	モダンパス合同会社 Modern Path LLC.	passive	831.3K	¥312	+58.6%	¥65M ($422K)
2023-04-10	SELL	Market Buy	モダンパス合同会社 Modern Path LLC.	passive	1.1M	¥354	+63.6%	¥36M ($233K)
2023-04-06	SELL	Market Buy	モダンパス合同会社 Modern Path LLC.	passive	1.2M	¥319	+59.6%	¥33M ($213K)
2023-04-06	SELL	Market Buy	モダンパス合同会社 Modern Path LLC.	passive	1.2M	¥319	+59.6%	¥22M ($144K)
2023-04-04	SELL	Market Buy	モダンパス合同会社 Modern Path LLC.	passive	1.2M	¥283	+54.4%	¥29M ($189K)
2023-04-04	BUY	Market Buy	モダンパス合同会社 Modern Path LLC.	passive	1.2M	¥283	-54.4%	¥29M ($189K)
2023-03-28	SELL	Market Buy	モダンパス合同会社 Modern Path LLC.	passive	1.4M	¥230	+43.9%	¥31M ($203K)
2023-03-23	SELL	Market Buy	モダンパス合同会社 Modern Path LLC.	passive	1.5M	¥241	+46.5%	¥33M ($210K)
2023-03-20	SELL	Market Buy	モダンパス合同会社 Modern Path LLC.	passive	1.7M	¥240	+46.3%	¥152M ($979K)
2023-03-17	SELL	Market Buy	モダンパス合同会社 Modern Path LLC.	passive	2.4M	¥254	+49.2%	¥59M ($379K)
2023-03-08	SELL	Market Buy	モダンパス合同会社 Modern Path LLC.	passive	2.6M	¥180	+28.3%	¥26M ($170K)
2023-01-30	BUY	Market Buy	モダンパス合同会社 Modern Path LLC.	passive	2.8M	¥158	-18.4%	¥438M ($2.8M)
2023-01-27	SELL	unknown	株式会社ビッグサンズ bigsons inc	other	705.9K	¥155	+16.8%	¥22M ($143K)
2023-01-27	SELL	unknown	村田三郎 Saburo Murata	strategic	232.3K	¥155	+16.8%	¥7M ($47K)
2023-01-27	BUY	unknown	株式会社ホスピタルネット Hospital Net Inc	other	2.0M	¥155	-16.8%	¥69M ($448K)
2022-10-07	SELL	Market Buy	モダンパス合同会社 Modern Path LLC.	passive	151.8K	¥160	+19.4%	¥189M ($1.2M)
2021-08-31	SELL	unknown	村田三郎 Saburo Murata	strategic	232.3K	¥182	+29.1%	¥8M ($54K)
2021-08-31	BUY	unknown	株式会社ホスピタルネット Hospital Net Inc	other	1.3M	¥182	-29.1%	¥193M ($1.2M)
2021-08-31	SELL	unknown	村田三郎 Saburo Murata	strategic	232.3K	¥182	+29.1%	¥8M ($54K)
2021-08-31	BUY	unknown	株式会社ホスピタルネット Hospital Net Inc	other	1.3M	¥182	-29.1%	¥193M ($1.2M)
2021-08-31	SELL	unknown	株式会社ビッグサンズ bigsons inc	other	705.9K	¥182	+29.1%	¥25M ($164K)
2021-08-31	SELL	unknown	株式会社ビッグサンズ bigsons inc	other	705.9K	¥182	+29.1%	¥25M ($164K)

Frequently asked questions

Who has been buying TB Group Inc. stock?: 4 distinct investors have filed 6 disclosed large-shareholding filings in TB Group Inc. (6775), most recently on 2025-08-29. 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 TB Group Inc. have?: TB Group Inc. has 6 buy-side and 25 sell-side disclosures on record, covering ¥1.3B ($8.5M) in total reported value, spanning 2021-08-31 to 2025-08-29.
Where does StockDrifts get TB Group 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 TB Group Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.