Who has been buying Sophia Holdings Co.,Ltd. stock?

6 distinct investors have filed 10 disclosed large-shareholding filings in Sophia Holdings Co.,Ltd. (6942), most recently on 2025-04-08. 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 Sophia Holdings Co.,Ltd. have?

Sophia Holdings Co.,Ltd. has 10 buy-side and 21 sell-side disclosures on record, covering ¥3.8B ($24.7M) in total reported value, spanning 2023-11-06 to 2025-04-08.

Where does StockDrifts get Sophia Holdings Co.,Ltd. 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.

Sophia Holdings Co.,Ltd. 6942

Company

株式会社ソフィアホールディングスSophia Holdings Co.,Ltd.

Investors

Buys

Total Value

¥3.8B ($24.7M)

Avg Return

+54.08%

Last Filing

2025-04-08

Sophia Holdings Co.,Ltd. (6942) has 10 disclosed large-shareholding filings and 21 disclosed disposals on record, filed by 6 distinct investors. Together those filings cover ¥3.8B ($24.7M) in reported transaction value. The earliest filing StockDrifts holds for Sophia Holdings Co.,Ltd. is dated 2023-11-06; the most recent is 2025-04-08. 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 +54.08%, 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
2025-04-08	BUY	negotiated	株式会社E-BONDホールディングス E-BOND Holdings Co., Ltd.	activist	2.5M	¥1,040	+22.7%	¥1.3B ($8.5M)
2025-04-08	BUY	negotiated	株式会社E-BONDホールディングス E-BOND Holdings Co., Ltd.	activist	2.5M	¥1,040	+22.7%	¥1.3B ($8.5M)
2025-04-08	SELL	negotiated	株式会社アレクシア ALEXIA Inc.	activist	0	¥1,040	-22.7%	¥1.8B ($11.5M)
2025-04-08	SELL	negotiated	株式会社アレクシア ALEXIA Inc.	activist	0	¥1,040	-22.7%	¥1.8B ($11.5M)
2024-06-27	SELL	Market Buy	指田仁 SASHIDA JIN	passive	206.2K	¥1,018	-25.3%	¥59M ($378K)
2024-06-18	SELL	Market Buy	指田仁 SASHIDA JIN	passive	252.9K	¥960	-32.9%	¥51M ($330K)
2024-06-10	SELL	Market Buy	指田仁 SASHIDA JIN	passive	308.5K	¥1,007	-26.7%	¥49M ($318K)
2024-06-10	BUY	Market Buy	指田仁 SASHIDA JIN	passive	308.5K	¥1,007	+26.7%	¥49M ($318K)
2024-05-31	SELL	Market Buy	指田仁 SASHIDA JIN	passive	359.7K	¥1,032	-23.6%	¥52M ($337K)
2024-05-31	BUY	Market Buy	指田仁 SASHIDA JIN	passive	359.7K	¥1,032	+23.6%	¥52M ($337K)
2024-05-27	SELL	Market Buy	指田仁 SASHIDA JIN	passive	412.6K	¥1,009	-26.5%	¥170M ($1.1M)
2024-03-21	SELL	negotiated	株式会社アレクシア ALEXIA Inc.	activist	1.5M	¥1,226	-4.1%	¥468M ($3.0M)
2024-03-21	SELL	negotiated	株式会社E-BONDホールディングス E-BOND Holdings Co., Ltd.	activist	1.0M	¥1,226	-4.1%	¥229M ($1.5M)
2024-03-21	SELL	negotiated	株式会社E-BONDホールディングス E-BOND Holdings Co., Ltd.	activist	1.0M	¥1,226	-4.1%	¥229M ($1.5M)
2024-03-21	SELL	negotiated	株式会社アレクシア ALEXIA Inc.	activist	1.5M	¥1,226	-4.1%	¥468M ($3.0M)
2024-03-08	BUY	Market Buy	指田仁 SASHIDA JIN	passive	450.0K	¥1,353	-5.7%	¥609M ($3.9M)
2024-03-01	BUY	Market Buy	福光大輔 Daisuke Fukumitsu	passive	205.0K	¥1,333	-4.3%	¥4M ($24K)
2024-03-01	BUY	Market Buy	福光大輔 Daisuke Fukumitsu	passive	205.0K	¥1,333	-4.3%	¥4M ($27K)
2024-02-19	SELL	Market Buy	株式会社第一ソフト DAIICHI SOFT CO.LTD	passive	165.0K	¥1,155	-10.5%	¥67M ($433K)
2024-02-19	BUY	Market Buy	指田仁 SASHIDA JIN	passive	450.0K	¥1,155	+10.5%	¥520M ($3.4M)
2024-02-16	SELL	Market Buy	掛谷和俊 KAZUTOSHI KAKETANI	passive	167.0K	¥1,112	-14.8%	¥63M ($406K)
2024-02-16	SELL	Market Buy	指田仁 SASHIDA JIN	passive	450.0K	¥1,112	-14.8%	¥30M ($192K)
2024-02-15	SELL	Market Buy	掛谷和俊 KAZUTOSHI KAKETANI	passive	225.0K	¥1,116	-14.3%	¥2M ($14K)
2024-02-15	BUY	Market Buy	掛谷和俊 KAZUTOSHI KAKETANI	passive	225.0K	¥1,116	+14.3%	¥2M ($14K)
2024-02-13	SELL	Market Buy	掛谷和俊 KAZUTOSHI KAKETANI	passive	227.0K	¥1,340	+4.8%	¥20M ($132K)
2024-02-13	SELL	Market Buy	株式会社第一ソフト DAIICHI SOFT CO.LTD	passive	225.0K	¥1,340	+4.8%	¥19M ($124K)
2024-02-13	BUY	Market Buy	株式会社第一ソフト DAIICHI SOFT CO.LTD	passive	225.0K	¥1,340	-4.8%	¥19M ($124K)
2024-02-13	BUY	Market Buy	掛谷和俊 KAZUTOSHI KAKETANI	passive	227.0K	¥1,340	-4.8%	¥20M ($132K)
2024-02-08	SELL	Market Buy	福光大輔 Daisuke Fukumitsu	passive	155.0K	¥1,499	+14.9%	¥61M ($396K)
2024-02-08	BUY	Market Buy	福光大輔 Daisuke Fukumitsu	passive	155.0K	¥1,499	-14.9%	¥70M ($454K)
2024-02-07	SELL	Market Buy	福光大輔 Daisuke Fukumitsu	passive	205.1K	¥1,774	+28.1%	¥56M ($362K)
2024-02-07	BUY	Market Buy	福光大輔 Daisuke Fukumitsu	passive	205.1K	¥1,774	-28.1%	¥56M ($362K)
2023-11-10	BUY	Market Buy	指田仁 SASHIDA JIN	passive	480.0K	¥700	+82.3%	¥336M ($2.2M)
2023-11-09	BUY	negotiated	株式会社E-BONDホールディングス E-BOND Holdings Co., Ltd.	activist	1.0M	¥693	+84.1%	¥256M ($1.6M)
2023-11-09	BUY	negotiated	株式会社E-BONDホールディングス E-BOND Holdings Co., Ltd.	activist	1.0M	¥693	+84.1%	¥256M ($1.6M)
2023-11-09	SELL	negotiated	株式会社アレクシア ALEXIA Inc.	activist	1.5M	¥693	-84.1%	¥204M ($1.3M)
2023-11-09	SELL	negotiated	株式会社アレクシア ALEXIA Inc.	activist	1.5M	¥693	-84.1%	¥143M ($924K)
2023-11-07	BUY	Market Buy	株式会社第一ソフト DAIICHI SOFT CO.LTD	passive	240.0K	¥691	+84.7%	¥166M ($1.1M)
2023-11-07	BUY	Market Buy	株式会社第一ソフト DAIICHI SOFT CO.LTD	passive	240.0K	¥691	+84.7%	¥166M ($1.1M)
2023-11-06	BUY	Market Buy	掛谷和俊 KAZUTOSHI KAKETANI	passive	243.0K	¥692	+84.4%	¥168M ($1.1M)
2023-11-06	BUY	Market Buy	掛谷和俊 KAZUTOSHI KAKETANI	passive	240.0K	¥692	+84.4%	¥166M ($1.1M)
2023-11-06	BUY	Market Buy	福光大輔 Daisuke Fukumitsu	passive	240.0K	¥692	+84.4%	¥166M ($1.1M)
2023-11-06	BUY	Market Buy	掛谷和俊 KAZUTOSHI KAKETANI	passive	243.0K	¥692	+84.4%	¥168M ($1.1M)
2023-11-06	BUY	Market Buy	福光大輔 Daisuke Fukumitsu	passive	240.0K	¥692	+84.4%	¥166M ($1.1M)

Frequently asked questions

Who has been buying Sophia Holdings Co.,Ltd. stock?: 6 distinct investors have filed 10 disclosed large-shareholding filings in Sophia Holdings Co.,Ltd. (6942), most recently on 2025-04-08. 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 Sophia Holdings Co.,Ltd. have?: Sophia Holdings Co.,Ltd. has 10 buy-side and 21 sell-side disclosures on record, covering ¥3.8B ($24.7M) in total reported value, spanning 2023-11-06 to 2025-04-08.
Where does StockDrifts get Sophia Holdings Co.,Ltd. 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 Sophia Holdings Co.,Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.