Who has been buying Shidax Corporation stock?

19 distinct investors have filed 27 disclosed large-shareholding filings in Shidax Corporation (4837), most recently on 2024-01-16. 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 Shidax Corporation have?

Shidax Corporation has 27 buy-side and 98 sell-side disclosures on record, covering ¥64.2B ($414.3M) in total reported value, spanning 2021-11-05 to 2024-01-16.

Where does StockDrifts get Shidax 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.

Shidax Corporation 4837

Company

シダックス株式会社Shidax Corporation

Investors

Buys

Total Value

¥64.2B ($414.3M)

Avg Return

+14.36%

Last Filing

2024-01-16

Shidax Corporation (4837) has 27 disclosed large-shareholding filings and 98 disclosed disposals on record, filed by 19 distinct investors. Together those filings cover ¥64.2B ($414.3M) in reported transaction value. The earliest filing StockDrifts holds for Shidax Corporation is dated 2021-11-05; the most recent is 2024-01-16. 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 +14.36%, 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
2024-01-16	BUY	unknown	オアシスマネジメントカンパニーリミテッド(Oasis Management Company Ltd.) Oasis Management Company Ltd.	activist	5.4M	¥801.32	-0.5%	¥4.4B ($28.1M)
2024-01-04	SELL	private	永木亜里紗 Arisa Nagaki	unknown	0	¥808.32	+1.4%	¥5.0B ($32.0M)
2024-01-04	SELL	private	株式会社シダ・セーフティ・サービス Shida Safety Service Co., Ltd.	unknown	0	¥808.32	+1.4%	¥1.4B ($9.3M)
2024-01-04	SELL	private	エスディーアイ株式会社 SDI Co., Ltd.	unknown	0	¥808.32	+1.4%	¥662M ($4.3M)
2024-01-04	SELL	private	志太瑛巳里 Shita Emiri	unknown	0	¥808.32	+1.4%	¥5.0B ($32.0M)
2024-01-04	SELL	private	志太悠真 Yuma Shita	unknown	0	¥808.32	+1.4%	¥5.0B ($32.0M)
2024-01-04	SELL	private	志太みゆき Miyuki Shita	unknown	0	¥808.32	+1.4%	¥5.9B ($37.8M)
2024-01-04	SELL	private	志太富路 Shita Tomiji	unknown	0	¥808.32	+1.4%	¥30.6B ($197.6M)
2024-01-04	SELL	private	志太正次郎 Shojiro Shita	unknown	0	¥808.32	+1.4%	¥491M ($3.2M)
2024-01-04	SELL	private	志太勤一 KINICHI SHIDA	unknown	0	¥808.32	+1.4%	¥991M ($6.4M)
2024-01-04	SELL	private	志太勤 Tsutomu Shita	unknown	0	¥808.32	+1.4%	¥973M ($6.3M)
2024-01-04	BUY	private	志太ホールディングス株式会社 SHIDA Holdings Corporation	activist	44.6M	¥808.32	-1.4%	¥28.7B ($185.0M)
2024-01-04	BUY	private	志太ホールディングス株式会社 SHIDA Holdings Corporation	activist	44.6M	¥808.32	-1.4%	¥36.1B ($232.7M)
2023-12-28	SELL	unknown	きらぼしキャピタル株式会社 Kiraboshi Capital Co., Ltd.	other	0	¥808.32	+1.4%	¥2.3B ($15.0M)
2023-12-26	SELL	private	エスディーアイ株式会社 SDI Co., Ltd.	unknown	0	¥804.32	+0.9%	¥659M ($4.3M)
2023-12-26	SELL	private	志太瑛巳里 Shita Emiri	unknown	0	¥804.32	+0.9%	¥4.9B ($31.8M)
2023-12-26	SELL	private	永木亜里紗 Arisa Nagaki	unknown	0	¥804.32	+0.9%	¥4.9B ($31.8M)
2023-12-26	SELL	private	志太悠真 Yuma Shita	unknown	0	¥804.32	+0.9%	¥4.9B ($31.8M)
2023-12-26	SELL	private	志太みゆき Miyuki Shita	unknown	0	¥804.32	+0.9%	¥5.8B ($37.6M)
2023-12-26	SELL	private	志太富路 Shita Tomiji	unknown	0	¥804.32	+0.9%	¥30.5B ($196.6M)
2023-12-26	SELL	private	志太正次郎 Shojiro Shita	unknown	0	¥804.32	+0.9%	¥489M ($3.2M)
2023-12-26	SELL	private	志太勤一 KINICHI SHIDA	unknown	0	¥804.32	+0.9%	¥986M ($6.4M)
2023-12-26	SELL	private	志太勤 Tsutomu Shita	unknown	0	¥804.32	+0.9%	¥968M ($6.2M)
2023-12-26	SELL	private	オイシックス・ラ・大地株式会社 Oisix ra daichi Inc.	strategic	0	¥804.32	+0.9%	¥12.5B ($80.9M)
2023-12-18	BUY	private	志太瑛巳里 Shita Emiri	activist	59.1K	¥804.32	-0.9%	¥48M ($307K)
2023-12-18	BUY	private	志太みゆき Miyuki Shita	activist	72.6K	¥804.32	-0.9%	¥58M ($377K)
2023-12-18	BUY	private	志太勤 Tsutomu Shita	activist	1.2M	¥804.32	-0.9%	¥968M ($6.2M)
2023-12-18	BUY	private	志太悠真 Yuma Shita	activist	61.0K	¥804.32	-0.9%	¥49M ($316K)
2023-12-18	BUY	private	株式会社シダ・セーフティ・サービス Shida Safety Service Co., Ltd.	activist	1.8M	¥804.32	-0.9%	¥1.4B ($9.2M)
2023-12-18	BUY	private	エスディーアイ株式会社 SDI Co., Ltd.	activist	820.0K	¥804.32	-0.9%	¥660M ($4.3M)
2023-12-18	BUY	private	永木亜里紗 Arisa Nagaki	activist	59.1K	¥804.32	-0.9%	¥48M ($307K)
2023-12-18	BUY	private	志太悠真 Yuma Shita	activist	61.0K	¥804.32	-0.9%	¥49M ($316K)
2023-12-18	BUY	private	志太富路 Shita Tomiji	activist	381.0K	¥804.32	-0.9%	¥306M ($2.0M)
2023-12-18	BUY	private	志太正次郎 Shojiro Shita	activist	604.9K	¥804.32	-0.9%	¥487M ($3.1M)
2023-12-18	BUY	private	志太勤一 KINICHI SHIDA	activist	1.2M	¥804.32	-0.9%	¥986M ($6.4M)
2023-12-18	BUY	private	志太勤 Tsutomu Shita	activist	1.2M	¥804.32	-0.9%	¥968M ($6.2M)
2023-12-18	BUY	private	株式会社シダ・セーフティ・サービス Shida Safety Service Co., Ltd.	activist	1.8M	¥804.32	-0.9%	¥1.4B ($9.2M)
2023-12-18	BUY	private	エスディーアイ株式会社 SDI Co., Ltd.	activist	820.0K	¥804.32	-0.9%	¥660M ($4.3M)
2023-12-18	BUY	private	志太瑛巳里 Shita Emiri	activist	59.1K	¥804.32	-0.9%	¥48M ($307K)
2023-12-18	BUY	private	永木亜里紗 Arisa Nagaki	activist	59.1K	¥804.32	-0.9%	¥48M ($307K)
2023-12-18	BUY	private	志太みゆき Miyuki Shita	activist	72.6K	¥804.32	-0.9%	¥58M ($377K)
2023-12-18	BUY	private	志太富路 Shita Tomiji	activist	381.0K	¥804.32	-0.9%	¥306M ($2.0M)
2023-12-18	BUY	private	志太正次郎 Shojiro Shita	activist	604.9K	¥804.32	-0.9%	¥487M ($3.1M)
2023-12-18	BUY	private	志太勤一 KINICHI SHIDA	activist	1.2M	¥804.32	-0.9%	¥986M ($6.4M)
2023-12-18	BUY	private	志太ホールディングス株式会社 SHIDA Holdings Corporation	activist	9.1M	¥804.32	-0.9%	¥7.3B ($47.4M)
2023-12-18	BUY	private	志太ホールディングス株式会社 SHIDA Holdings Corporation	activist	9.1M	¥804.32	-0.9%	¥7.3B ($47.4M)
2023-12-11	BUY	private	株式会社シダ・セーフティ・サービス Shida Safety Service Co., Ltd.	activist	1.8M	¥804.32	-0.9%	¥1.4B ($9.2M)
2023-12-11	BUY	private	エスディーアイ株式会社 SDI Co., Ltd.	activist	820.0K	¥804.32	-0.9%	¥660M ($4.3M)
2023-12-11	BUY	private	志太瑛巳里 Shita Emiri	activist	59.1K	¥804.32	-0.9%	¥48M ($307K)
2023-12-11	BUY	private	永木亜里紗 Arisa Nagaki	activist	59.1K	¥804.32	-0.9%	¥48M ($307K)

Showing the 50 most recent of 200 filings.

Frequently asked questions

Who has been buying Shidax Corporation stock?: 19 distinct investors have filed 27 disclosed large-shareholding filings in Shidax Corporation (4837), most recently on 2024-01-16. 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 Shidax Corporation have?: Shidax Corporation has 27 buy-side and 98 sell-side disclosures on record, covering ¥64.2B ($414.3M) in total reported value, spanning 2021-11-05 to 2024-01-16.
Where does StockDrifts get Shidax 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 Shidax Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.