Who has been buying MEDINET Co., Ltd. stock?

2 distinct investors have filed 3 disclosed large-shareholding filings in MEDINET Co., Ltd. (2370), most recently on 2026-03-11. 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 MEDINET Co., Ltd. have?

MEDINET Co., Ltd. has 3 buy-side and 25 sell-side disclosures on record, covering ¥5.5B ($35.2M) in total reported value, spanning 2021-09-07 to 2026-03-11.

Where does StockDrifts get MEDINET 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.

MEDINET Co., Ltd. 2370

Company

株式会社メディネットMEDINET Co., Ltd.

Investors

Buys

Total Value

¥5.5B ($35.2M)

Avg Return

-38.41%

Last Filing

2026-03-11

MEDINET Co., Ltd. (2370) has 3 disclosed large-shareholding filings and 25 disclosed disposals on record, filed by 2 distinct investors. Together those filings cover ¥5.5B ($35.2M) in reported transaction value. The earliest filing StockDrifts holds for MEDINET Co., Ltd. is dated 2021-09-07; the most recent is 2026-03-11. 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 -38.41%, 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
2026-08-07	SELL	subscription	マッコーリーバンクリミテッド (Macquarie Bank Limited) Macquarie Bank Limited	passive	42.5M	¥25	+0.0%	¥59M ($384K)
2026-05-29	SELL	subscription	マッコーリーバンクリミテッド (Macquarie Bank Limited) Macquarie Bank Limited	passive	45.3M	¥28	+14.3%	¥81M ($521K)
2026-03-11	SELL	subscription	マッコーリーバンクリミテッド (Macquarie Bank Limited) Macquarie Bank Limited	passive	48.6M	¥32	+6.3%	¥99M ($641K)
2026-02-27	SELL	subscription	マッコーリーバンクリミテッド (Macquarie Bank Limited) Macquarie Bank Limited	passive	52.2M	¥31	+3.2%	¥208M ($1.3M)
2026-01-05	BUY	Market Buy	マッコーリーバンクリミテッド (Macquarie Bank Limited) Macquarie Bank Limited	passive	60.0M	¥29	+3.5%	¥1.7B ($11.2M)
2024-04-26	SELL	subscription	マッコーリーバンクリミテッド Macquarie Bank Limited	passive	11.9M	¥45	+33.3%	¥122M ($789K)
2023-12-15	SELL	subscription	マッコーリーバンクリミテッド Macquarie Bank Limited	passive	14.7M	¥44	+31.8%	¥202M ($1.3M)
2023-11-17	SELL	subscription	マッコーリーバンクリミテッド Macquarie Bank Limited	passive	19.4M	¥45	+33.3%	¥131M ($844K)
2023-11-13	SELL	subscription	マッコーリーバンクリミテッド Macquarie Bank Limited	passive	22.6M	¥45	+33.3%	¥379M ($2.4M)
2023-11-10	SELL	subscription	マッコーリーバンクリミテッド Macquarie Bank Limited	passive	31.6M	¥47	+36.2%	¥125M ($805K)
2023-09-28	SELL	subscription	マッコーリーバンクリミテッド Macquarie Bank Limited	passive	34.6M	¥50	+40.0%	¥106M ($681K)
2023-09-19	SELL	subscription	マッコーリーバンクリミテッド Macquarie Bank Limited	passive	37.0M	¥50	+40.0%	¥129M ($833K)
2023-08-30	SELL	subscription	マッコーリーバンクリミテッド Macquarie Bank Limited	passive	40.0M	¥52	+42.3%	¥103M ($666K)
2023-08-21	SELL	subscription	マッコーリーバンクリミテッド Macquarie Bank Limited	passive	42.3M	¥53	+43.4%	¥131M ($844K)
2023-06-23	SELL	subscription	マッコーリーバンクリミテッド Macquarie Bank Limited	passive	45.3M	¥68	+55.9%	¥157M ($1.0M)
2023-06-02	SELL	subscription	マッコーリーバンクリミテッド Macquarie Bank Limited	passive	48.0M	¥68	+55.9%	¥149M ($962K)
2023-04-28	SELL	negotiated	木村佳司 YoshijiKimura	activist	7.6M	¥67	+55.2%	¥512M ($3.3M)
2023-04-28	BUY	negotiated	木村佳司 YoshijiKimura	activist	7.6M	¥67	-55.2%	¥512M ($3.3M)
2023-04-26	SELL	subscription	マッコーリーバンクリミテッド (Macquarie Bank Limited) Macquarie Bank Limited	passive	50.7M	¥68	+55.9%	¥128M ($828K)
2023-03-10	BUY	subscription	株式会社メディネット Macquarie Bank Limited	passive	53.0M	¥70	-57.1%	¥3.7B ($23.9M)
2023-03-10	BUY	subscription	マッコーリーバンクリミテッド (Macquarie Bank Limited) Macquarie Bank Limited	passive	53.0M	¥70	-57.1%	¥3.7B ($23.9M)
2022-05-02	SELL	subscription	マッコーリーバンクリミテッド (Macquarie Bank Limited) Macquarie Bank Limited	passive	10.3M	¥51	+41.2%	¥325M ($2.1M)
2022-04-04	SELL	subscription	マッコーリーバンクリミテッド (Macquarie Bank Limited) Macquarie Bank Limited	passive	17.0M	¥53	+43.4%	¥124M ($802K)
2022-03-07	SELL	subscription	マッコーリーバンクリミテッド (Macquarie Bank Limited) Macquarie Bank Limited	passive	19.5M	¥43	+30.2%	¥86M ($555K)
2022-02-07	SELL	subscription	マッコーリーバンクリミテッド (Macquarie Bank Limited) Macquarie Bank Limited	passive	21.7M	¥46	+34.8%	¥98M ($634K)
2022-02-07	BUY	subscription	マッコーリーバンクリミテッド (Macquarie Bank Limited) Macquarie Bank Limited	passive	21.7M	¥46	-34.8%	¥99M ($640K)
2022-01-21	SELL	subscription	マッコーリーバンクリミテッド (Macquarie Bank Limited) Macquarie Bank Limited	passive	24.0M	¥48	+37.5%	¥137M ($887K)
2022-01-12	SELL	subscription	マッコーリーバンクリミテッド (Macquarie Bank Limited) Macquarie Bank Limited	passive	27.2M	¥51	+41.2%	¥81M ($523K)
2021-12-28	SELL	subscription	マッコーリーバンクリミテッド (Macquarie Bank Limited) Macquarie Bank Limited	passive	29.0M	¥50	+40.0%	¥104M ($668K)
2021-12-03	SELL	subscription	マッコーリーバンクリミテッド (Macquarie Bank Limited) Macquarie Bank Limited	passive	31.4M	¥54	+44.4%	¥103M ($667K)
2021-10-25	SELL	subscription	マッコーリーバンクリミテッド (Macquarie Bank Limited) Macquarie Bank Limited	passive	33.6M	¥63	+52.4%	¥112M ($726K)
2021-09-21	SELL	subscription	マッコーリーバンクリミテッド (Macquarie Bank Limited) Macquarie Bank Limited	passive	35.7M	¥73	+58.9%	¥142M ($914K)
2021-09-21	BUY	subscription	マッコーリーバンクリミテッド (Macquarie Bank Limited) Macquarie Bank Limited	passive	35.7M	¥73	-58.9%	¥142M ($914K)
2021-09-07	BUY	subscription	マッコーリーバンクリミテッド (Macquarie Bank Limited) Macquarie Bank Limited	passive	38.0M	¥78	-61.5%	¥3.0B ($19.1M)

Frequently asked questions

Who has been buying MEDINET Co., Ltd. stock?: 2 distinct investors have filed 3 disclosed large-shareholding filings in MEDINET Co., Ltd. (2370), most recently on 2026-03-11. 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 MEDINET Co., Ltd. have?: MEDINET Co., Ltd. has 3 buy-side and 25 sell-side disclosures on record, covering ¥5.5B ($35.2M) in total reported value, spanning 2021-09-07 to 2026-03-11.
Where does StockDrifts get MEDINET 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 MEDINET Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.