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

14 distinct investors have filed 36 disclosed large-shareholding filings in Besterra Co., Ltd. (1433), most recently on 2026-01-20. 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 Besterra Co., Ltd. have?

Besterra Co., Ltd. has 36 buy-side and 59 sell-side disclosures on record, covering ¥7.3B ($47.2M) in total reported value, spanning 2021-04-01 to 2026-01-20.

Where does StockDrifts get Besterra 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.

Besterra Co., Ltd. 1433

Company

ベステラ株式会社Besterra Co., Ltd.

Investors

Buys

Total Value

¥7.3B ($47.2M)

Avg Return

-14.46%

Last Filing

2026-01-20

Besterra Co., Ltd. (1433) has 36 disclosed large-shareholding filings and 59 disclosed disposals on record, filed by 14 distinct investors. Together those filings cover ¥7.3B ($47.2M) in reported transaction value. The earliest filing StockDrifts holds for Besterra Co., Ltd. is dated 2021-04-01; the most recent is 2026-01-20. 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 -14.46%, 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
2026-01-20	BUY	unknown	吉野炳樹 Yoshino Akitatsu	other	924.5K	¥1,323	-19.6%	¥293M ($1.9M)
2026-01-20	SELL	unknown	吉野炳樹 Yoshino Akitatsu	other	924.5K	¥1,323	+19.6%	¥293M ($1.9M)
2026-01-15	SELL	unknown	吉野佳秀 Yoshihide Yoshino	strategic	923.6K	¥1,302	+18.4%	¥260M ($1.7M)
2026-01-15	BUY	unknown	吉野佳秀 Yoshihide Yoshino	strategic	923.6K	¥1,302	-18.4%	¥247M ($1.6M)
2026-01-14	SELL	unknown	吉野炳樹 Yoshino Akitatsu	other	924.5K	¥1,289	+17.5%	¥286M ($1.8M)
2026-01-14	BUY	unknown	吉野炳樹 Yoshino Akitatsu	other	924.5K	¥1,289	-17.5%	¥286M ($1.8M)
2026-01-05	BUY	unknown	吉野炳樹 Yoshino Akitatsu	other	924.5K	¥1,281	-17.0%	¥284M ($1.8M)
2026-01-05	BUY	Market Buy	吉野炳樹 Yoshino Akitatsu	other	924.5K	¥1,281	-17.0%	¥315M ($2.0M)
2025-09-04	SELL	unknown	吉野炳樹 Yoshino Akitatsu	other	1.1M	¥1,226	+13.3%	¥114M ($737K)
2025-06-30	SELL	unknown	吉野炳樹 Yoshino Akitatsu	other	1.4M	¥1,120	+5.1%	¥119M ($771K)
2025-06-09	BUY	unknown	吉野佳秀 Yoshihide Yoshino	activist	1.2M	¥1,119	-5.0%	¥1.4B ($8.9M)
2025-06-09	SELL	unknown	TERRA・ESHINO株式会社 TERRA・ESHINO Co., Ltd.	activist	0	¥1,119	+5.0%	¥1.6B ($10.5M)
2025-05-07	SELL	Market Buy	ハヤテマネジメント株式会社 Hayate Management	activist	462.4K	¥1,089	+2.4%	¥118M ($764K)
2025-04-18	SELL	Market Buy	TERRA・ESHINO株式会社 TERRA・ESHINO Co., Ltd.	activist	1.4M	¥1,092	+2.7%	¥222M ($1.4M)
2025-04-18	SELL	unknown	TERRA・ESHINO株式会社 TERRA・ESHINO Co., Ltd.	activist	1.4M	¥1,092	+2.7%	¥222M ($1.4M)
2025-04-18	BUY	unknown	吉野佳秀 Yoshihide Yoshino	activist	1.2M	¥1,092	-2.7%	¥1.2B ($7.9M)
2025-04-18	BUY	Market Buy	吉野佳秀 Yoshihide Yoshino	activist	1.2M	¥1,092	-2.7%	¥1.2B ($7.9M)
2025-04-14	SELL	Market Buy	ハヤテインベストメント株式会社 Hayate Investment	activist	0	¥1,037	-2.5%	¥501M ($3.2M)
2025-04-14	BUY	Market Buy	ハヤテマネジメント株式会社 Hayate Management	activist	510.0K	¥1,037	+2.5%	¥529M ($3.4M)
2025-02-06	SELL	unknown	吉野佳秀 Yoshihide Yoshino	activist	105.9K	¥975	-9.0%	¥50M ($322K)
2025-02-06	SELL	unknown	吉野佳秀 Yoshihide Yoshino	activist	105.9K	¥975	-9.0%	¥49M ($317K)
2025-02-06	SELL	unknown	TERRA・ESHINO株式会社 TERRA・ESHINO Co., Ltd.	activist	1.4M	¥975	-9.0%	¥106M ($684K)
2025-02-06	SELL	unknown	TERRA・ESHINO株式会社 TERRA・ESHINO Co., Ltd.	activist	1.4M	¥975	-9.0%	¥107M ($690K)
2024-05-20	SELL	unknown	吉野炳樹 Akitatsu Yoshino	other	1.3M	¥973	-9.3%	¥39M ($254K)
2024-05-20	SELL	unknown	吉野炳樹 Akitatsu Yoshino	other	1.3M	¥973	-9.3%	¥39M ($254K)
2024-05-20	SELL	unknown	吉野炳樹 Akitatsu Yoshino	other	1.3M	¥973	-9.3%	¥39M ($254K)
2024-05-20	SELL	unknown	吉野炳樹 Akitatsu Yoshino	other	1.3M	¥973	-9.3%	¥39M ($254K)
2024-05-20	SELL	unknown	吉野炳樹 Akitatsu Yoshino	other	1.3M	¥973	-9.3%	¥39M ($254K)
2024-04-26	SELL	Market Buy	ハヤテパートナーズピーティーイーエルティーディー(HAYATE PARTNERS PTE LTD) HAYATE PARTNERS PTE LTD	passive	0	¥931	-14.2%	¥449M ($2.9M)
2024-04-26	BUY	Market Buy	ハヤテインベストメント株式会社 Hayate Investment	activist	510.0K	¥931	+14.2%	¥449M ($2.9M)
2024-04-26	BUY	Market Buy	ハヤテインベストメント株式会社 Hayate Investment	activist	510.0K	¥931	+14.2%	¥449M ($2.9M)
2024-02-02	SELL	unknown	吉野炳樹 Akitatsu Yoshino	other	1.3M	¥974	-9.1%	¥39M ($254K)
2024-01-19	BUY	unknown	吉野炳樹 akitatsu yoshino	other	1.3M	¥1,059	+0.4%	¥28M ($178K)
2023-09-29	SELL	unknown	吉野炳樹 Akitatsu Yoshino	other	1.3M	¥1,007	-5.6%	¥35M ($228K)
2023-07-31	BUY	unknown	吉野炳樹 Akitatsu Yoshino	other	1.4M	¥1,100	-3.4%	¥1.5B ($9.8M)
2023-05-10	BUY	unknown	吉野炳樹 Akitatsu Yoshino	other	1.4M	¥934	+13.8%	¥1.3B ($8.3M)
2023-04-05	BUY	unknown	吉野炳樹 Akitatsu Yoshino	activist	1.4M	¥882	+20.5%	¥1.2B ($7.8M)
2023-02-03	BUY	unknown	吉野炳樹 Akitatsu Yoshino	activist	1.4M	¥893	+19.0%	¥1.2B ($7.9M)
2023-01-06	BUY	unknown	吉野炳樹 Akitatsu Yoshino	activist	1.4M	¥929	+14.4%	¥1.3B ($8.2M)
2022-11-02	BUY	unknown	吉野炳樹 Akitatsu Yoshino	activist	1.4M	¥956	+11.2%	¥1.3B ($8.5M)
2022-10-21	SELL	Market Buy	ハヤテパートナーズピーティーイーエルティーディー(HAYATE PARTNERS PTE LTD) HAYATE PARTNERS PTE LTD	passive	510.0K	¥912	-16.6%	¥172M ($1.1M)
2022-10-20	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	187.5K	¥898	+18.4%	¥2M ($10K)
2022-10-20	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	128.2K	¥898	-18.4%	¥14M ($89K)
2022-10-20	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	44.9K	¥898	-18.4%	¥78M ($500K)
2022-10-04	SELL	unknown	吉野炳樹 Akitatsu Yoshino	activist	1.4M	¥949	-12.0%	¥22M ($143K)
2022-09-22	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	186.5K	¥1,002	-6.1%	¥901K ($6K)
2022-09-22	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	143.9K	¥1,002	+6.1%	¥144M ($930K)
2022-09-22	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	131.7K	¥1,002	-6.1%	¥90M ($581K)
2022-09-07	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	43.0K	¥1,101	+3.5%	¥93M ($600K)
2022-09-07	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	351.1K	¥1,101	+3.5%	¥10M ($64K)

Showing the 50 most recent of 122 filings.

Frequently asked questions

Who has been buying Besterra Co., Ltd. stock?: 14 distinct investors have filed 36 disclosed large-shareholding filings in Besterra Co., Ltd. (1433), most recently on 2026-01-20. 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 Besterra Co., Ltd. have?: Besterra Co., Ltd. has 36 buy-side and 59 sell-side disclosures on record, covering ¥7.3B ($47.2M) in total reported value, spanning 2021-04-01 to 2026-01-20.
Where does StockDrifts get Besterra 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 Besterra Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.