Who has been buying Temairazu, Inc. stock?

8 distinct investors have filed 8 disclosed large-shareholding filings in Temairazu, Inc. (2477), most recently on 2026-04-24. 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 Temairazu, Inc. have?

Temairazu, Inc. has 8 buy-side and 10 sell-side disclosures on record, covering ¥21.6B ($139.4M) in total reported value, spanning 2021-03-26 to 2026-04-24.

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.

Temairazu, Inc. 2477

Company

手間いらず株式会社Temairazu, Inc.

Investors

Buys

Total Value

¥21.6B ($139.4M)

Avg Return

-18.62%

Last Filing

2026-04-24

Temairazu, Inc. (2477) has 8 disclosed large-shareholding filings and 10 disclosed disposals on record, filed by 8 distinct investors. Together those filings cover ¥21.6B ($139.4M) in reported transaction value. The earliest filing StockDrifts holds for Temairazu, Inc. is dated 2021-03-26; the most recent is 2026-04-24. Across these filings the average return since disclosure is -18.62%, 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
2026-08-17	BUY	Market Buy	光通信株式会社	passive	122.6K	¥3,085	+5.8%	¥178M ($1.1M)
2026-08-17	BUY	Market Buy	株式会社UH6	passive	390.7K	¥3,085	-	-
2026-08-17	BUY	Market Buy	株式会社EPARK	passive	23.6K	¥3,085	+5.8%	¥22M ($142K)
2026-08-17	BUY	Market Buy	さくら損害保険株式会社	passive	14.1K	¥3,085	-	-
2026-04-24	SELL	negotiated	渡邉哲男	activist	579.5K	¥2,471	-32.1%	¥10M ($62K)
2026-04-24	BUY	Market Buy	渡邉愛奈	activist	15.5K	¥2,471	+32.1%	¥8M ($52K)
2026-04-24	SELL	unknown	68k株式会社	activist	3.3M	¥2,471	-32.1%	¥2M ($10K)
2026-04-07	SELL	Market Buy	光通信株式会社	passive	64.8K	¥2,715	-20.3%	¥1.0B ($6.5M)
2026-04-07	BUY	Market Buy	株式会社UH6	passive	390.7K	¥2,715	-	¥1.1B ($6.8M)
2026-04-07	BUY	Market Buy	株式会社EPARK	passive	16.2K	¥2,715	-	-
2026-04-07	BUY	Market Buy	さくら損害保険株式会社	passive	14.1K	¥2,715	-	-
2025-09-26	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	436.6K	¥3,180	+2.7%	¥33M ($213K)
2025-09-26	BUY	Market Buy	株式会社EPARK EPARK , INC.	passive	16.2K	¥3,180	-	-
2025-09-26	BUY	Market Buy	さくら損害保険株式会社 Sakura General Insurance Co., Ltd.	passive	14.1K	¥3,180	-	-
2025-08-22	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	426.6K	¥2,945	+10.9%	¥147M ($948K)
2025-08-22	BUY	Market Buy	さくら損害保険株式会社 Sakura General Insurance Co., Ltd.	passive	14.1K	¥2,945	-	-
2025-08-22	BUY	Market Buy	株式会社EPARK EPARK , INC.	passive	16.2K	¥2,945	-	¥48M ($308K)
2025-05-12	SELL	negotiated	渡邉哲男 Tetsuo Watanabe	activist	579.5K	¥3,380	+3.4%	¥13M ($85K)
2025-05-12	BUY	negotiated	渡邉愛奈 Aina Watanabe	activist	15.5K	¥3,380	-3.4%	¥1.1B ($7.1M)
2025-05-12	SELL	negotiated	68k株式会社 68k Co., Ltd.	activist	3.3M	¥3,380	+3.4%	¥2M ($14K)
2025-01-16	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	376.6K	¥2,980	+9.6%	¥195M ($1.3M)
2025-01-16	BUY	Market Buy	さくら損害保険株式会社 Sakura General Insurance Co., Ltd.	passive	14.1K	¥2,980	-	-
2024-10-07	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	311.3K	¥3,410	-4.3%	¥1.1B ($6.8M)
2024-10-07	BUY	Market Buy	さくら損害保険株式会社 Sakura General Insurance Co., Ltd.	passive	14.1K	¥3,410	-4.3%	¥48M ($310K)
2023-10-18	SELL	Market Buy	アーチザン・インベストメンツ・ジーピー・エルエルシー(Artisan Investments GP LLC) Artisan Investments GP LLC	passive	182.2K	¥2,165	-50.8%	¥307M ($2.0M)
2023-10-04	SELL	Market Buy	アーチザン・インベストメンツ・ジーピー・エルエルシー(Artisan Investments GP LLC) Artisan Investments GP LLC	passive	324.2K	¥2,229	-46.5%	¥357M ($2.3M)
2023-09-28	BUY	negotiated	68k株式会社 68k Co., Ltd.	activist	3.3M	¥2,502	-	¥8.2B ($53.1M)
2023-09-28	SELL	negotiated	渡邉哲男 Tetsuo Watanabe	activist	583.0K	¥2,502	-30.5%	¥8.2B ($53.1M)
2023-09-28	SELL	negotiated	渡邉哲男 Tetsuo Watanabe	activist	583.0K	¥2,502	-30.5%	¥8.2B ($53.1M)
2023-09-28	BUY	negotiated	渡邉愛奈 Aina Watanabe	activist	12.0K	¥2,502	-	-
2023-09-28	BUY	negotiated	渡邉愛奈 Aina Watanabe	activist	12.0K	¥2,502	-	-
2023-09-28	BUY	negotiated	68k株式会社 68k Co., Ltd.	activist	3.3M	¥2,502	-	¥8.2B ($53.1M)
2022-08-08	SELL	negotiated	渡邉哲男 Tetsuo Watanabe	activist	3.9M	¥4,875	+33.0%	¥3M ($20K)
2022-08-08	BUY	negotiated	渡邉愛奈 Aina Watanabe	activist	12.0K	¥4,875	-	-
2021-03-26	BUY	negotiated	渡邉哲男 Tetsuo Watanabe	activist	3.9M	¥4,972.96	-34.3%	¥19.1B ($123.0M)
2021-03-26	BUY	negotiated	渡邉愛奈 Aina Watanabe	activist	12.0K	¥4,972.96	-	-

Frequently asked questions

Who has been buying Temairazu, Inc. stock?: 8 distinct investors have filed 8 disclosed large-shareholding filings in Temairazu, Inc. (2477), most recently on 2026-04-24. 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 Temairazu, Inc. have?: Temairazu, Inc. has 8 buy-side and 10 sell-side disclosures on record, covering ¥21.6B ($139.4M) in total reported value, spanning 2021-03-26 to 2026-04-24.
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.

More on this data

Every trade listed above comes from an official regulatory disclosure. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.