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

9 distinct investors have filed 6 disclosed large-shareholding filings in CORREC Co., Ltd. (6578), most recently on 2026-02-19. 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 CORREC Co., Ltd. have?

CORREC Co., Ltd. has 6 buy-side and 8 sell-side disclosures on record, covering ¥545M ($3.5M) in total reported value, spanning 2021-03-26 to 2026-02-19.

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.

CORREC Co., Ltd. 6578

Company

株式会社コレックホールディングスCORREC Co., Ltd.

Investors

Buys

Total Value

¥545M ($3.5M)

Avg Return

+64.27%

Last Filing

2026-02-19

CORREC Co., Ltd. (6578) has 6 disclosed large-shareholding filings and 8 disclosed disposals on record, filed by 9 distinct investors. Together those filings cover ¥545M ($3.5M) in reported transaction value. The earliest filing StockDrifts holds for CORREC Co., Ltd. is dated 2021-03-26; the most recent is 2026-02-19. Across these filings the average return since disclosure is +64.27%, 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
2026-02-19	SELL	unknown	栗林憲介	strategic	1.5M	¥508	+8.7%	¥38M ($243K)
2026-02-19	SELL	unknown	栗林憲介	strategic	1.5M	¥508	+8.7%	¥38M ($243K)
2026-02-19	BUY	unknown	株式会社KKインベストメント	strategic	1.2M	¥508	-	-
2026-02-19	BUY	unknown	株式会社KKインベストメント	strategic	1.2M	¥508	-	-
2026-01-19	SELL	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	289.6K	¥470	+1.3%	¥37M ($238K)
2025-11-17	BUY	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	367.0K	¥320	+45.0%	¥117M ($758K)
2025-11-07	SELL	unknown	栗林憲介 Keisuke Kuribayashi	strategic	1.6M	¥272	-70.6%	¥11M ($70K)
2025-11-07	SELL	unknown	栗林圭介 Keisuke Kuribayashi	strategic	1.1M	¥272	-70.6%	¥6M ($37K)
2025-11-07	SELL	unknown	株式会社KKインベストメント KK Investment Co., Ltd.	strategic	1.2M	¥272	-70.6%	¥11M ($68K)
2025-11-07	SELL	unknown	株式会社ケイアンドケイ K&K Co., Ltd.	strategic	600.0K	¥272	-70.6%	¥5M ($35K)
2024-11-15	BUY	Market Buy	株式会社Wiz 代表取締役山﨑俊 Wiz Co.,Ltd.	passive	390.9K	¥355	+30.7%	¥139M ($895K)
2022-01-25	BUY	Market Buy	株式会社エスアイエル SIL Co., Ltd.	passive	42.9K	¥203	-	-
2022-01-25	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	297.7K	¥203	+128.6%	¥60M ($384K)
2022-01-21	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	445.5K	¥218	+112.8%	¥96M ($619K)
2022-01-21	BUY	Market Buy	株式会社エスアイエル SIL Co., Ltd.	passive	42.9K	¥218	-	-
2022-01-18	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	542.2K	¥228	+103.5%	¥122M ($788K)
2022-01-18	BUY	Market Buy	株式会社エスアイエル SIL Co., Ltd.	passive	42.9K	¥228	-	¥10M ($63K)
2021-03-26	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	621.0K	¥342.24	+35.6%	¥12M ($75K)
2021-03-26	SELL	Market Buy	株式会社ブロードピーク Broadpeak Co., Ltd.	unknown	0	¥342.24	-35.6%	¥2M ($14K)

Frequently asked questions

Who has been buying CORREC Co., Ltd. stock?: 9 distinct investors have filed 6 disclosed large-shareholding filings in CORREC Co., Ltd. (6578), most recently on 2026-02-19. 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 CORREC Co., Ltd. have?: CORREC Co., Ltd. has 6 buy-side and 8 sell-side disclosures on record, covering ¥545M ($3.5M) in total reported value, spanning 2021-03-26 to 2026-02-19.
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.