Who has been buying Scinex Corporation stock?

6 distinct investors have filed 10 disclosed large-shareholding filings in Scinex Corporation (2376), most recently on 2026-05-12. 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 Scinex Corporation have?

Scinex Corporation has 10 buy-side and 4 sell-side disclosures on record, covering ¥255M ($1.6M) in total reported value, spanning 2021-12-03 to 2026-05-12.

Where does StockDrifts get Scinex Corporation 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.

Scinex Corporation 2376

Company

株式会社サイネックスScinex Corporation

Investors

Buys

Total Value

¥255M ($1.6M)

Avg Return

-12.54%

Last Filing

2026-05-12

Scinex Corporation (2376) has 10 disclosed large-shareholding filings and 4 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥255M ($1.6M) in reported transaction value. The earliest filing StockDrifts holds for Scinex Corporation is dated 2021-12-03; the most recent is 2026-05-12. 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 -12.54%, 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
2026-05-12	SELL	unknown	村田吉優	activist	486.3K	¥645	-23.4%	¥40M ($258K)
2026-05-12	BUY	unknown	株式会社富士総研	activist	130.0K	¥645	+23.4%	¥84M ($541K)
2026-05-12	BUY	Market Buy	村田将規	activist	145.1K	¥645	+23.4%	¥3M ($22K)
2026-05-12	BUY	unknown	株式会社富士教育創研	activist	1.1M	¥645	+23.4%	¥697M ($4.5M)
2026-05-01	SELL	unknown	村田吉優	activist	486.3K	¥645	-14.6%	¥40M ($258K)
2026-05-01	BUY	unknown	株式会社富士総研	activist	130.0K	¥645	+14.6%	¥84M ($541K)
2026-05-01	BUY	Market Buy	村田将規	activist	145.1K	¥645	+14.6%	¥3M ($22K)
2026-05-01	BUY	unknown	株式会社富士教育創研	activist	1.1M	¥645	+14.6%	¥697M ($4.5M)
2026-05-01	SELL	unknown	村田吉優	activist	486.3K	¥645	-14.6%	¥40M ($258K)
2026-05-01	BUY	unknown	株式会社富士総研	activist	130.0K	¥645	+14.6%	¥84M ($541K)
2026-05-01	BUY	Market Buy	村田将規	activist	145.1K	¥645	+14.6%	¥3M ($22K)
2026-05-01	BUY	unknown	株式会社富士教育創研	activist	1.1M	¥645	+14.6%	¥697M ($4.5M)
2025-09-26	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	208.9K	¥768	-16.5%	¥30M ($192K)
2025-09-26	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	421.0K	¥768	-16.5%	¥323M ($2.1M)
2025-06-12	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	170.0K	¥801	-20.0%	¥52M ($338K)
2025-06-12	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	421.0K	¥801	-20.0%	¥337M ($2.2M)
2025-03-31	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	105.0K	¥761	-15.8%	¥49M ($318K)
2025-03-31	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	421.0K	¥761	-15.8%	¥320M ($2.1M)
2025-01-16	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	40.0K	¥766	-16.3%	¥31M ($198K)
2025-01-16	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	421.0K	¥766	-16.3%	¥23M ($150K)
2024-10-22	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	390.8K	¥838	-23.5%	¥56M ($364K)
2024-10-04	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	323.6K	¥824	-22.2%	¥267M ($1.7M)
2024-08-20	BUY	unknown	村田将規 Masanori Murata	activist	140.0K	¥756	-15.2%	¥106M ($683K)
2024-08-20	BUY	unknown	株式会社富士教育創研 Fujikyouikusoken.Ltd.	activist	1.1M	¥756	-15.2%	¥816M ($5.3M)
2024-07-08	BUY	unknown	村田将規 Masanori Murata	activist	140.0K	¥791	-19.0%	¥34M ($218K)
2024-07-08	BUY	unknown	株式会社富士教育創研 Fujikyouikusoken.Ltd.	activist	1.1M	¥791	-19.0%	¥854M ($5.5M)
2021-12-03	SELL	unknown	村田吉優 Yoshimasa Murata	activist	547.9K	¥581	-10.3%	¥36M ($235K)

Frequently asked questions

Who has been buying Scinex Corporation stock?: 6 distinct investors have filed 10 disclosed large-shareholding filings in Scinex Corporation (2376), most recently on 2026-05-12. 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 Scinex Corporation have?: Scinex Corporation has 10 buy-side and 4 sell-side disclosures on record, covering ¥255M ($1.6M) in total reported value, spanning 2021-12-03 to 2026-05-12.
Where does StockDrifts get Scinex Corporation 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 Scinex Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.