Who has been buying UT Group Co., Ltd. stock?

13 distinct investors have filed 16 disclosed large-shareholding filings in UT Group Co., Ltd. (2146), most recently on 2026-02-06. 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 UT Group Co., Ltd. have?

UT Group Co., Ltd. has 16 buy-side and 22 sell-side disclosures on record, covering ¥33.1B ($213.5M) in total reported value, spanning 2021-04-01 to 2026-02-06.

Where does StockDrifts get UT Group 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.

UT Group Co., Ltd. 2146

Company

UTグループ株式会社UT Group Co., Ltd.

Investors

Buys

Total Value

¥33.1B ($213.5M)

Avg Return

-0.58%

Last Filing

2026-02-06

UT Group Co., Ltd. (2146) has 16 disclosed large-shareholding filings and 22 disclosed disposals on record, filed by 13 distinct investors. Together those filings cover ¥33.1B ($213.5M) in reported transaction value. The earliest filing StockDrifts holds for UT Group Co., Ltd. is dated 2021-04-01; the most recent is 2026-02-06. 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 -0.58%, 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
2026-08-10	BUY	Market Buy	株式会社Lei Hau'oli	strategic	27.3M	¥221	+0.9%	¥40M ($257K)
2026-08-10	BUY	Market Buy	若山陽一	strategic	135.5M	¥221	+0.9%	¥199M ($1.3M)
2026-08-10	BUY	Market Buy	合同会社若山陽一事務所	other	94.5M	¥221	+0.9%	¥93M ($600K)
2026-08-10	SELL	unknown	株式会社Lei Hau'oli	strategic	27.3M	¥221	-0.9%	¥771M ($5.0M)
2026-08-10	SELL	unknown	若山陽一	strategic	135.5M	¥221	-0.9%	¥3.9B ($25.0M)
2026-08-10	BUY	Market Buy	合同会社若山陽一事務所	other	94.5M	¥221	+0.9%	¥93M ($600K)
2026-02-06	SELL	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	other	41.1M	¥212	+9.4%	¥1.3B ($8.6M)
2026-01-09	BUY	unknown	株式会社若山陽一事務所	other	94.5M	¥205	-6.3%	¥18.2B ($117.1M)
2026-01-09	BUY	unknown	株式会社Lei Hau'oli	strategic	27.3M	¥205	-6.3%	¥5.2B ($33.8M)
2026-01-09	BUY	unknown	若山陽一	strategic	135.5M	¥205	-6.3%	¥26.0B ($167.8M)
2026-01-09	BUY	Market Buy	株式会社若山陽一事務所	other	94.5M	¥205	-6.3%	¥18.2B ($117.1M)
2026-01-09	BUY	Market Buy	株式会社Lei Hau'oli	strategic	27.3M	¥205	-6.3%	¥5.2B ($33.8M)
2026-01-09	BUY	Market Buy	若山陽一	strategic	135.5M	¥205	-6.3%	¥26.0B ($167.8M)
2025-04-04	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	589.0K	¥120.73	-59.0%	¥20M ($127K)
2025-04-04	SELL	unknown	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	990.6K	¥120.73	-59.0%	¥30M ($192K)
2024-09-20	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	753.5K	¥186.33	-3.0%	¥25M ($163K)
2024-09-20	SELL	unknown	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	1.2M	¥186.33	-3.0%	¥50M ($326K)
2023-10-06	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	704.6K	¥139.27	-37.9%	¥13M ($87K)
2023-10-06	SELL	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	other	2.5M	¥139.27	-37.9%	¥46M ($297K)
2023-06-06	SELL	unknown	アライアンス・バーンスタイン・エル・ピー(AllianceBernstein L.P.) AllianceBernstein L.P.	other	1.6M	¥195.73	+1.9%	¥103M ($663K)
2023-05-19	BUY	unknown	株式会社若山陽一事務所 Wakayama Yoichi Office Co., Ltd.	other	6.3M	¥186.07	+3.2%	¥1.2B ($7.6M)
2023-05-19	BUY	unknown	株式会社Lei Hau'oli Lei Hau'oli Co., Ltd.	strategic	1.8M	¥186.07	+3.2%	¥338M ($2.2M)
2023-05-19	BUY	unknown	若山陽一 Yoichi Wakayama	strategic	9.0M	¥186.07	+3.2%	¥1.7B ($10.8M)
2023-04-06	BUY	Market Buy	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	1.5M	¥157.87	+21.6%	¥55M ($358K)
2023-04-06	BUY	Market Buy	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	902.0K	¥157.87	+21.6%	¥9M ($58K)
2022-12-05	SELL	Market Buy	SOMPOアセットマネジメント株式会社 SOMPO ASSET MANAGEMENT CO.,LTD.	passive	1.5M	¥173.2	-10.8%	¥105M ($677K)
2022-11-21	BUY	unknown	アライアンス・バーンスタイン・エル・ピー(AllianceBernstein L.P.) AllianceBernstein L.P.	other	2.1M	¥188.47	+1.9%	¥397M ($2.6M)
2022-10-19	SELL	unknown	アライアンス・バーンスタイン・エル・ピー(AllianceBernstein L.P.) AllianceBernstein L.P.	other	2.0M	¥150.27	-27.8%	¥214M ($1.4M)
2022-10-07	SELL	unknown	フィデリティ投信株式会社 FIL Investments (Japan) Limited	other	1.8M	¥152.47	-25.9%	¥105M ($679K)
2022-07-21	BUY	Market Buy	SOMPOアセットマネジメント株式会社 SOMPO ASSET MANAGEMENT CO.,LTD.	passive	2.1M	¥173.53	+10.6%	¥361M ($2.3M)
2022-07-07	SELL	unknown	フィデリティ投信株式会社 FIL Investments (Japan) Limited	other	2.5M	¥172.6	-11.2%	¥87M ($562K)
2022-07-07	SELL	Market Buy	ティー・ロウ・プライス・ジャパン株式会社 T. Rowe Price Japan, Inc.	passive	1.8M	¥172.6	-11.2%	¥229M ($1.5M)
2022-06-07	SELL	Market Buy	ティー・ロウ・プライス・ジャパン株式会社 T. Rowe Price Japan, Inc.	passive	3.1M	¥162.2	-18.4%	¥143M ($925K)
2022-06-06	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	842.7K	¥164	+17.1%	¥138M ($892K)
2022-06-06	BUY	unknown	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	1.2M	¥164	+17.1%	¥193M ($1.2M)
2022-04-26	SELL	Market Buy	ティー・ロウ・プライス・ジャパン株式会社 T. Rowe Price Japan, Inc.	passive	4.0M	¥195.2	+1.6%	¥79M ($508K)
2022-04-06	BUY	Market Buy	アライアンス・バーンスタイン・エル・ピー(AllianceBernstein L.P.) AllianceBernstein L.P.	other	3.4M	¥211.33	-9.2%	¥142M ($914K)
2021-12-24	BUY	unknown	株式会社若山陽一事務所 Wakayama Yoichi Office Co., Ltd.	other	6.3M	¥292	-34.3%	¥1.8B ($11.9M)
2021-12-24	BUY	unknown	株式会社Lei Hau'oli Lei Hau'oli Co., Ltd.	strategic	1.8M	¥292	-34.3%	¥265M ($1.7M)
2021-12-24	BUY	unknown	若山陽一 Yoichi Wakayama	strategic	9.0M	¥292	-34.3%	¥2.6B ($17.0M)
2021-12-07	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	801.6K	¥276.67	+30.6%	¥7M ($43K)
2021-12-07	SELL	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	other	2.8M	¥276.67	+30.6%	¥28M ($180K)
2021-10-07	SELL	unknown	フィデリティ投信株式会社 FIL Investments (Japan) Limited	other	3.0M	¥213.67	+10.1%	¥91M ($584K)
2021-08-24	BUY	unknown	株式会社若山陽一事務所 Wakayama Yoichi Office Co., Ltd.	other	6.3M	¥193.2	-0.6%	¥1.2B ($7.9M)
2021-08-24	BUY	unknown	株式会社コペルニクス Copernicus Co., Ltd.	strategic	908.6K	¥193.2	-0.6%	¥176M ($1.1M)
2021-08-24	BUY	unknown	株式会社Lei Hau'oli Lei Hau'oli Co., Ltd.	strategic	908.6K	¥193.2	-0.6%	¥176M ($1.1M)
2021-08-24	BUY	unknown	株式会社若山陽一事務所 Wakayama Yoichi Office Co., Ltd.	other	6.3M	¥193.2	-0.6%	¥1.2B ($7.9M)
2021-08-24	BUY	unknown	株式会社コペルニクス Copernicus Co., Ltd.	strategic	908.6K	¥193.2	-0.6%	¥176M ($1.1M)
2021-08-24	BUY	unknown	株式会社Lei Hau'oli Lei Hau'oli Co., Ltd.	strategic	908.6K	¥193.2	-0.6%	¥176M ($1.1M)
2021-08-24	SELL	unknown	若山陽一 Yoichi Wakayama	strategic	9.0M	¥193.2	+0.6%	¥818M ($5.3M)

Showing the 50 most recent of 58 filings.

Frequently asked questions

Who has been buying UT Group Co., Ltd. stock?: 13 distinct investors have filed 16 disclosed large-shareholding filings in UT Group Co., Ltd. (2146), most recently on 2026-02-06. 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 UT Group Co., Ltd. have?: UT Group Co., Ltd. has 16 buy-side and 22 sell-side disclosures on record, covering ¥33.1B ($213.5M) in total reported value, spanning 2021-04-01 to 2026-02-06.
Where does StockDrifts get UT Group 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 UT Group Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.