Who has been buying Arbeit-Times Co., Ltd. stock?

5 distinct investors have filed 21 disclosed large-shareholding filings in Arbeit-Times Co., Ltd. (2341), most recently on 2026-04-08. 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 Arbeit-Times Co., Ltd. have?

Arbeit-Times Co., Ltd. has 21 buy-side and 3 sell-side disclosures on record, covering ¥1.0B ($6.6M) in total reported value, spanning 2021-03-26 to 2026-04-08.

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.

Arbeit-Times Co., Ltd. 2341

Company

株式会社アルバイトタイムスArbeit-Times Co., Ltd.

Investors

Buys

Total Value

¥1.0B ($6.6M)

Avg Return

+23.24%

Last Filing

2026-04-08

Arbeit-Times Co., Ltd. (2341) has 21 disclosed large-shareholding filings and 3 disclosed disposals on record, filed by 5 distinct investors. Together those filings cover ¥1.0B ($6.6M) in reported transaction value. The earliest filing StockDrifts holds for Arbeit-Times Co., Ltd. is dated 2021-03-26; the most recent is 2026-04-08. Across these filings the average return since disclosure is +23.24%, 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
2026-05-19	BUY	unknown	株式会社東京共同会計事務所 Tokyo Kyodo Accounting Office Co., Ltd.	other	1.5M	¥169	+2.4%	¥247M ($1.6M)
2026-04-08	BUY	Market Buy	光通信株式会社	passive	1.9M	¥211	-	-
2026-04-08	BUY	Market Buy	株式会社UH Partners 2	passive	1.4M	¥211	-	-
2026-04-08	BUY	Market Buy	株式会社UH Partners 3	passive	328.2K	¥211	-	-
2026-04-08	BUY	Market Buy	株式会社EPARK	passive	1.3M	¥211	-18.0%	¥58M ($377K)
2026-03-02	BUY	Market Buy	光通信株式会社	passive	1.9M	¥186	-	-
2026-03-02	BUY	Market Buy	株式会社UH Partners 2	passive	1.4M	¥186	-	-
2026-03-02	BUY	Market Buy	株式会社UH Partners 3	passive	328.2K	¥186	-	-
2026-03-02	BUY	Market Buy	株式会社EPARK	passive	986.3K	¥186	-7.0%	¥52M ($336K)
2026-01-29	BUY	Market Buy	光通信株式会社	passive	1.9M	¥190	-8.9%	¥13M ($81K)
2026-01-29	BUY	Market Buy	株式会社UH Partners 2	passive	1.4M	¥190	-8.9%	¥9M ($61K)
2026-01-29	BUY	Market Buy	株式会社UH Partners 3	passive	328.2K	¥190	-8.9%	¥3M ($17K)
2026-01-29	BUY	Market Buy	株式会社EPARK	passive	704.8K	¥190	-8.9%	¥31M ($198K)
2026-01-19	BUY	Market Buy	光通信株式会社	passive	1.9M	¥183	-5.5%	¥12M ($77K)
2026-01-19	BUY	Market Buy	株式会社UH Partners 2	passive	1.4M	¥183	-5.5%	¥8M ($54K)
2026-01-19	BUY	Market Buy	株式会社UH Partners 3	passive	328.2K	¥183	-5.5%	¥2M ($13K)
2026-01-19	BUY	Market Buy	株式会社EPARK	passive	563.9K	¥183	-5.5%	¥31M ($201K)
2025-09-26	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	1.9M	¥168	-	-
2025-09-26	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	1.4M	¥168	-	-
2025-09-26	BUY	Market Buy	株式会社UH Partners 3 UH Partners 3 Co., Ltd.	passive	328.2K	¥168	-	-
2025-09-26	BUY	Market Buy	株式会社EPARK EPARK , INC.	passive	406.3K	¥168	+3.0%	¥44M ($281K)
2025-08-22	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	1.4M	¥165	-	-
2025-08-22	BUY	Market Buy	株式会社UH Partners 3 UH Partners 3 Co., Ltd.	passive	328.2K	¥165	+4.8%	¥26M ($166K)
2025-08-22	BUY	Market Buy	株式会社EPARK EPARK , INC.	passive	146.3K	¥165	-	¥24M ($156K)
2025-08-22	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	1.9M	¥165	-	-
2025-04-28	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	1.9M	¥147	+17.7%	¥6M ($42K)
2025-04-28	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	1.4M	¥147	+17.7%	¥17M ($109K)
2025-04-28	BUY	Market Buy	株式会社UH Partners 3 UH Partners 3 Co., Ltd.	passive	171.0K	¥147	-	¥25M ($162K)
2025-04-07	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	1.9M	¥142	-	-
2025-04-07	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	1.3M	¥142	+21.8%	¥46M ($295K)
2025-01-31	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	1.9M	¥147	-	-
2025-01-31	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	967.7K	¥147	+17.7%	¥45M ($289K)
2024-11-19	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	1.9M	¥142	-	-
2024-11-19	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	663.9K	¥142	+21.8%	¥43M ($279K)
2024-09-30	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	1.9M	¥144	+20.1%	¥6M ($39K)
2024-09-30	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	357.2K	¥144	+20.1%	¥42M ($272K)
2024-03-18	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	1.9M	¥151	+14.6%	¥36M ($234K)
2024-03-18	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	68.8K	¥151	-	¥10M ($67K)
2024-02-22	SELL	unknown	満井義政 YOSHINORI MITSUI	other	0	¥145	-19.3%	¥976M ($6.3M)
2024-01-31	SELL	unknown	満井義政 YOSHINORI MITSUI	other	6.7M	¥150	-15.3%	¥21M ($137K)
2022-10-27	SELL	unknown	満井義政 YOSHINORI MITSUI	other	7.0M	¥138	-25.4%	¥74M ($475K)
2021-03-26	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	1.7M	¥127.07	+36.1%	¥14M ($87K)

Frequently asked questions

Who has been buying Arbeit-Times Co., Ltd. stock?: 5 distinct investors have filed 21 disclosed large-shareholding filings in Arbeit-Times Co., Ltd. (2341), most recently on 2026-04-08. 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 Arbeit-Times Co., Ltd. have?: Arbeit-Times Co., Ltd. has 21 buy-side and 3 sell-side disclosures on record, covering ¥1.0B ($6.6M) in total reported value, spanning 2021-03-26 to 2026-04-08.
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.