Who has been buying Sanix Incorporated stock?

5 distinct investors have filed 12 disclosed large-shareholding filings in Sanix Incorporated (4651), most recently on 2026-04-07. 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 Sanix Incorporated have?

Sanix Incorporated has 12 buy-side and 2 sell-side disclosures on record, covering ¥1.2B ($8.0M) in total reported value, spanning 2021-05-25 to 2026-04-07.

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.

Sanix Incorporated 4651

Company

株式会社サニックスホールディングスSanix Incorporated

Investors

Buys

Total Value

¥1.2B ($8.0M)

Avg Return

-15.39%

Last Filing

2026-04-07

Sanix Incorporated (4651) has 12 disclosed large-shareholding filings and 2 disclosed disposals on record, filed by 5 distinct investors. Together those filings cover ¥1.2B ($8.0M) in reported transaction value. The earliest filing StockDrifts holds for Sanix Incorporated is dated 2021-05-25; the most recent is 2026-04-07. Across these filings the average return since disclosure is -15.39%, 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
2026-04-07	SELL	Market Buy	株式会社UH Partners 2	unknown	0	¥222	-10.8%	¥729M ($4.7M)
2026-04-07	BUY	Market Buy	株式会社UH5	passive	3.6M	¥222	-	-
2026-04-07	BUY	Market Buy	株式会社UH6	passive	3.3M	¥222	-	¥729M ($4.7M)
2026-04-07	BUY	Market Buy	株式会社エフティグループ	passive	1.1M	¥222	-	-
2025-03-17	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	3.3M	¥249	-	-
2025-03-17	BUY	Market Buy	株式会社UH5 UH5 Co., Ltd.	passive	3.6M	¥249	-	¥892M ($5.8M)
2025-03-17	SELL	Market Buy	光通信株式会社 Hikari Tsushin K.K.	unknown	0	¥249	+1.2%	¥892M ($5.8M)
2025-03-17	BUY	Market Buy	株式会社エフティグループ FTGroup Co., Ltd.	passive	1.1M	¥249	-1.2%	¥100M ($644K)
2024-08-28	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	3.3M	¥262	-	-
2024-08-28	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	3.6M	¥262	-	-
2024-08-28	BUY	Market Buy	株式会社エフティグループ FTGroup Co., Ltd.	passive	652.6K	¥262	-6.1%	¥131M ($843K)
2024-07-10	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	3.3M	¥305	-19.3%	¥106M ($683K)
2024-07-10	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	3.6M	¥305	-	-
2024-07-10	BUY	Market Buy	株式会社エフティグループ FTGroup Co., Ltd.	passive	152.0K	¥305	-	¥46M ($299K)
2024-06-14	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	3.6M	¥281	-	-
2024-06-14	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	2.9M	¥281	-12.5%	¥137M ($887K)
2024-05-28	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	3.6M	¥278	-	-
2024-05-28	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	2.4M	¥278	-11.5%	¥137M ($886K)
2024-05-07	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	3.6M	¥331	-	-
2024-05-07	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	1.9M	¥331	-25.7%	¥167M ($1.1M)
2024-04-02	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	1.4M	¥322	-23.6%	¥162M ($1.0M)
2024-04-02	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	3.6M	¥322	-	-
2024-02-26	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	3.6M	¥310	-	-
2024-02-26	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	945.9K	¥310	-20.6%	¥156M ($1.0M)
2022-02-16	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	3.6M	¥199	+23.6%	¥14M ($88K)
2022-02-16	BUY	Market Buy	株式会社UH Partners 2 UH Partners 2, Inc.	passive	438.2K	¥199	-	¥87M ($563K)
2021-11-30	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	3.5M	¥246	+0.0%	¥124M ($800K)
2021-06-01	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	3.0M	¥338	-27.2%	¥177M ($1.1M)
2021-05-25	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	2.5M	¥334	-26.4%	¥830M ($5.4M)

Frequently asked questions

Who has been buying Sanix Incorporated stock?: 5 distinct investors have filed 12 disclosed large-shareholding filings in Sanix Incorporated (4651), most recently on 2026-04-07. 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 Sanix Incorporated have?: Sanix Incorporated has 12 buy-side and 2 sell-side disclosures on record, covering ¥1.2B ($8.0M) in total reported value, spanning 2021-05-25 to 2026-04-07.
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.