Who has been buying Japan Lifeline Co., Ltd. stock?

9 distinct investors have filed 12 disclosed large-shareholding filings in Japan Lifeline Co., Ltd. (7575), most recently on 2026-02-17. 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 Japan Lifeline Co., Ltd. have?

Japan Lifeline Co., Ltd. has 12 buy-side and 7 sell-side disclosures on record, covering ¥42.4B ($273.7M) in total reported value, spanning 2022-03-07 to 2026-02-17.

Where does StockDrifts get Japan Lifeline 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.

Japan Lifeline Co., Ltd. 7575

Company

日本ライフライン株式会社Japan Lifeline Co., Ltd.

Investors

Buys

Total Value

¥42.4B ($273.7M)

Avg Return

+15.60%

Last Filing

2026-02-17

Japan Lifeline Co., Ltd. (7575) has 12 disclosed large-shareholding filings and 7 disclosed disposals on record, filed by 9 distinct investors. Together those filings cover ¥42.4B ($273.7M) in reported transaction value. The earliest filing StockDrifts holds for Japan Lifeline Co., Ltd. is dated 2022-03-07; the most recent is 2026-02-17. 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 +15.60%, 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
2026-05-21	BUY	Market Buy	SOMPOアセットマネジメント株式会社 SOMPO ASSET MANAGEMENT CO.,LTD.	passive	3.6M	¥1,286	+3.2%	¥4.6B ($30.0M)
2026-02-17	BUY	negotiated	KS商事株式会社	strategic	11.1M	¥1,411	-0.8%	¥15.7B ($101.5M)
2026-02-17	BUY	negotiated	鈴木啓介	activist	222.0K	¥1,411	-0.8%	¥316M ($2.0M)
2026-02-17	BUY	negotiated	KS商事株式会社	strategic	11.1M	¥1,411	+0.8%	¥15.7B ($101.5M)
2026-02-17	SELL	negotiated	鈴木啓介	activist	222.0K	¥1,411	-0.8%	¥316M ($2.0M)
2026-02-05	BUY	negotiated	鈴木　啓介 Keisuke Suzuki	activist	11.3M	¥1,423	-0.1%	¥16.1B ($103.6M)
2025-09-08	BUY	unknown	株式会社MSJ商会 MSJ Shokai Co., Ltd.	strategic	972.2K	¥1,536	-7.4%	¥1.5B ($9.6M)
2025-09-08	BUY	unknown	株式会社RMアセットマネジメント RM Asset Management Co., Ltd.	strategic	972.2K	¥1,536	-7.4%	¥1.5B ($9.6M)
2025-09-08	BUY	unknown	M.S MEDICAL株式会社 M.S MEDICAL Co., Ltd.	strategic	972.2K	¥1,536	-7.4%	¥1.5B ($9.6M)
2025-09-08	BUY	unknown	MM商会株式会社 MM Shokai Co., Ltd.	strategic	972.2K	¥1,536	-7.4%	¥1.5B ($9.6M)
2025-09-08	BUY	unknown	増本武司 Takeshi Masumoto	strategic	300.1K	¥1,536	-7.4%	¥461M ($3.0M)
2025-09-08	BUY	Market Buy	株式会社MSJ商会 MSJ Shokai Co., Ltd.	strategic	972.2K	¥1,536	-7.4%	¥1.5B ($9.6M)
2025-09-08	BUY	Market Buy	株式会社RMアセットマネジメント RM Asset Management Co., Ltd.	strategic	972.2K	¥1,536	-7.4%	¥1.5B ($9.6M)
2025-09-08	BUY	Market Buy	M.S MEDICAL株式会社 M.S MEDICAL Co., Ltd.	strategic	972.2K	¥1,536	-7.4%	¥1.5B ($9.6M)
2025-09-08	BUY	Market Buy	MM商会株式会社 MM Shokai Co., Ltd.	strategic	972.2K	¥1,536	-7.4%	¥1.5B ($9.6M)
2025-09-08	BUY	Market Buy	増本武司 Takeshi Masumoto	strategic	300.1K	¥1,536	-7.4%	¥22M ($141K)
2025-09-08	SELL	Market Buy	エムティ商会株式会社 MT Shokai	strategic	972.2K	¥1,536	+7.4%	¥5.5B ($35.8M)
2025-09-08	BUY	unknown	エムティ商会株式会社 MT Shokai	strategic	972.2K	¥1,536	-7.4%	¥1.5B ($9.6M)
2025-08-29	BUY	negotiated	KS商事株式会社 KS Shoji Co., Ltd.	strategic	10.3M	¥1,449	-1.9%	¥14.9B ($96.0M)
2025-08-29	BUY	Market Buy	鈴木啓介 Keisuke Suzuki	activist	1.0M	¥1,449	-1.9%	¥145M ($933K)
2025-08-29	BUY	negotiated	鈴木啓介 Keisuke Suzuki	activist	1.0M	¥1,449	-1.9%	¥145M ($933K)
2025-08-29	BUY	Market Buy	KS商事株式会社 KS Shoji Co., Ltd.	strategic	10.3M	¥1,449	-1.9%	¥14.9B ($96.0M)
2025-08-13	BUY	Market Buy	KS商事株式会社 KS Shoji Co., Ltd.	strategic	10.3M	¥1,473	-3.5%	¥2.6B ($16.5M)
2025-08-13	BUY	negotiated	KS商事株式会社 KS Shoji Co., Ltd.	strategic	10.3M	¥1,473	-3.5%	¥15.1B ($97.6M)
2025-08-13	BUY	negotiated	鈴木啓介 Keisuke Suzuki	activist	922.0K	¥1,473	-3.5%	¥1.4B ($8.8M)
2025-08-13	SELL	Market Buy	鈴木啓介 Keisuke Suzuki	activist	922.0K	¥1,473	+3.5%	¥1.6B ($10.2M)
2025-02-19	SELL	Market Buy	SOMPOアセットマネジメント株式会社 SOMPO ASSET MANAGEMENT CO.,LTD.	passive	3.3M	¥1,589	+10.5%	¥1.2B ($8.0M)
2025-02-12	BUY	unknown	増本武司 Takeshi Masumoto	strategic	300.1K	¥1,601	-11.2%	¥480M ($3.1M)
2025-02-12	BUY	unknown	エムティ商会株式会社 MT Shokai	strategic	4.9M	¥1,601	-11.2%	¥7.8B ($50.2M)
2024-12-04	BUY	negotiated	KS商事株式会社 KS Shoji Co., Ltd.	strategic	9.1M	¥1,324	+7.4%	¥12.0B ($77.5M)
2024-12-04	BUY	negotiated	鈴木啓介 Keisuke Suzuki	activist	2.1M	¥1,324	+7.4%	¥2.8B ($18.1M)
2024-06-28	BUY	unknown	増本武司 Takeshi Masumoto	strategic	300.1K	¥1,133	+25.5%	¥340M ($2.2M)
2024-06-28	BUY	unknown	エムティ商会株式会社 MT Shokai	strategic	4.9M	¥1,133	+25.5%	¥5.4B ($34.8M)
2024-06-07	BUY	unknown	増本武司 Takeshi Masumoto	strategic	300.1K	¥1,095	+29.9%	¥329M ($2.1M)
2024-06-07	BUY	Market Buy	増本武司 Takeshi Masumoto	strategic	300.1K	¥1,095	+29.9%	¥33M ($214K)
2024-06-07	BUY	Market Buy	エムティ商会株式会社 MT Shokai	strategic	9.9M	¥1,095	+29.9%	¥937M ($6.0M)
2024-06-07	BUY	unknown	エムティ商会株式会社 MT Shokai	strategic	9.9M	¥1,095	+29.9%	¥10.8B ($69.7M)
2024-05-09	SELL	negotiated	鈴木啓介 Keisuke Suzuki	activist	2.1M	¥1,223	-16.3%	¥185M ($1.2M)
2024-05-09	BUY	negotiated	KS商事株式会社 KS Shoji Co., Ltd.	strategic	9.1M	¥1,223	+16.3%	¥1.8B ($11.3M)
2024-03-22	BUY	Market Buy	SOMPOアセットマネジメント株式会社 SOMPO ASSET MANAGEMENT CO.,LTD.	passive	4.1M	¥1,277	+11.3%	¥5.2B ($33.8M)
2023-03-15	SELL	Market Buy	増本武司 Takeshi Masumoto	strategic	300.1K	¥933	-52.4%	¥1.3B ($8.2M)
2023-03-15	BUY	Market Buy	エムティ商会株式会社 MT Shokai	strategic	9.9M	¥933	+52.4%	¥271M ($1.7M)
2022-12-05	SELL	Market Buy	SOMPOアセットマネジメント株式会社 SOMPO ASSET MANAGEMENT CO.,LTD.	passive	3.8M	¥925	-53.7%	¥851M ($5.5M)
2022-03-09	BUY	unknown	増本武司 Takeshi Masumoto	strategic	20.1K	¥1,047	+35.8%	¥21M ($136K)
2022-03-09	BUY	unknown	エムティ商会株式会社 MT Shokai	strategic	9.9M	¥1,047	+35.8%	¥10.2B ($65.9M)
2022-03-08	BUY	negotiated	KS商事株式会社 KS Shoji Co., Ltd.	strategic	8.6M	¥1,054	+34.9%	¥9.1B ($58.5M)
2022-03-08	BUY	negotiated	鈴木啓介 Keisuke Suzuki	activist	2.6M	¥1,054	+34.9%	¥2.7B ($17.4M)
2022-03-07	BUY	negotiated	KS商事株式会社 KS Shoji Co., Ltd.	strategic	8.6M	¥1,068	+33.1%	¥9.2B ($59.3M)
2022-03-07	BUY	negotiated	KS商事株式会社 KS Shoji Co., Ltd.	strategic	8.6M	¥1,068	+33.1%	¥9.2B ($59.3M)
2022-03-07	BUY	negotiated	鈴木啓介 Keisuke Suzuki	activist	2.6M	¥1,068	+33.1%	¥2.7B ($17.6M)

Showing the 50 most recent of 51 filings.

Frequently asked questions

Who has been buying Japan Lifeline Co., Ltd. stock?: 9 distinct investors have filed 12 disclosed large-shareholding filings in Japan Lifeline Co., Ltd. (7575), most recently on 2026-02-17. 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 Japan Lifeline Co., Ltd. have?: Japan Lifeline Co., Ltd. has 12 buy-side and 7 sell-side disclosures on record, covering ¥42.4B ($273.7M) in total reported value, spanning 2022-03-07 to 2026-02-17.
Where does StockDrifts get Japan Lifeline 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 Japan Lifeline Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.