Who has been buying internet infinity Inc. stock?

4 distinct investors have filed 7 disclosed large-shareholding filings in internet infinity Inc. (6545), most recently on 2026-03-24. 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 internet infinity Inc. have?

internet infinity Inc. has 7 buy-side and 12 sell-side disclosures on record, covering ¥670M ($4.3M) in total reported value, spanning 2021-03-19 to 2026-03-24.

Where does StockDrifts get internet infinity Inc. 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.

internet infinity Inc. 6545

Company

株式会社インターネットインフィニティーinternet infinity Inc.

Investors

Buys

Total Value

¥670M ($4.3M)

Avg Return

+57.07%

Last Filing

2026-03-24

internet infinity Inc. (6545) has 7 disclosed large-shareholding filings and 12 disclosed disposals on record, filed by 4 distinct investors. Together those filings cover ¥670M ($4.3M) in reported transaction value. The earliest filing StockDrifts holds for internet infinity Inc. is dated 2021-03-19; the most recent is 2026-03-24. 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 +57.07%, 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
2026-03-24	SELL	unknown	藤澤卓 fujisawa taku	activist	271.6K	¥755	+1.6%	¥3M ($21K)
2026-03-24	BUY	unknown	藤澤卓 fujisawa taku	activist	271.6K	¥755	-1.6%	¥3M ($21K)
2026-02-18	BUY	unknown	藤澤卓 fujisawa taku	activist	76.0K	¥704	+5.5%	¥54M ($345K)
2026-02-18	SELL	unknown	藤澤卓 fujisawa taku	activist	280.5K	¥704	-5.5%	¥38M ($247K)
2024-02-26	BUY	unknown	株式会社別宮圭一事務所 Keiichi Betsumiya Office Co., Ltd.	activist	1.0M	¥425	+74.8%	¥442M ($2.9M)
2024-02-26	BUY	unknown	株式会社別宮圭一事務所 Keiichi Betsumiya Office Co., Ltd.	activist	1.0M	¥425	+74.8%	¥442M ($2.9M)
2024-02-26	SELL	unknown	別宮圭一 bekku keiichi	activist	298.8K	¥425	-74.8%	¥29M ($188K)
2024-02-26	SELL	unknown	別宮圭一 bekku keiichi	activist	298.8K	¥425	-74.8%	¥29M ($188K)
2023-09-08	BUY	unknown	株式会社別宮圭一事務所 Keiichi Betsumiya Office Co., Ltd.	activist	1.0M	¥417	+78.2%	¥434M ($2.8M)
2023-09-08	SELL	unknown	別宮圭一 bekku keiichi	activist	367.2K	¥417	-78.2%	¥23M ($147K)
2022-03-24	BUY	unknown	株式会社別宮圭一事務所 Keiichi Betsumiya Office Co., Ltd.	activist	1.0M	¥388	+91.5%	¥404M ($2.6M)
2022-03-24	SELL	unknown	別宮圭一 bekku keiichi	activist	422.5K	¥388	-91.5%	¥23M ($147K)
2022-02-24	BUY	Market Buy	株式会社別宮圭一事務所 Keiichi Betsumiya Office Co., Ltd.	activist	520.0K	¥378	+96.6%	¥197M ($1.3M)
2022-02-24	BUY	Market Buy	別宮圭一 bekku keiichi	activist	1.0M	¥378	+96.6%	¥1M ($8K)
2022-02-17	BUY	unknown	株式会社別宮圭一事務所 Keiichi Betsumiya Office Co., Ltd.	activist	1.0M	¥403	+84.4%	¥105M ($676K)
2022-02-17	BUY	unknown	株式会社別宮圭一事務所 Keiichi Betsumiya Office Co., Ltd.	activist	1.0M	¥403	+84.4%	¥105M ($676K)
2022-02-17	SELL	unknown	別宮圭一 bekku keiichi	activist	481.1K	¥403	-84.4%	¥113M ($728K)
2022-02-17	SELL	unknown	別宮圭一 bekku keiichi	activist	481.1K	¥403	-84.4%	¥113M ($728K)
2021-08-18	BUY	unknown	株式会社別宮圭一事務所 Keiichi Betsumiya Office Co., Ltd.	activist	780.0K	¥520	+42.9%	¥135M ($872K)
2021-08-18	BUY	unknown	株式会社別宮圭一事務所 Keiichi Betsumiya Office Co., Ltd.	activist	780.0K	¥520	+42.9%	¥135M ($872K)
2021-08-18	BUY	unknown	株式会社別宮圭一事務所 Keiichi Betsumiya Office Co., Ltd.	activist	780.0K	¥520	+42.9%	¥135M ($872K)
2021-08-18	SELL	unknown	別宮圭一 bekku keiichi	activist	761.1K	¥520	-42.9%	¥131M ($843K)
2021-08-18	SELL	unknown	別宮圭一 bekku keiichi	activist	761.1K	¥520	-42.9%	¥131M ($843K)
2021-08-18	SELL	unknown	別宮圭一 bekku keiichi	activist	761.1K	¥520	-42.9%	¥132M ($854K)
2021-03-19	SELL	unknown	大和アセットマネジメント株式会社 Daiwa Asset Management Co.Ltd.	other	114.1K	¥533.68	-39.2%	¥90M ($581K)

Frequently asked questions

Who has been buying internet infinity Inc. stock?: 4 distinct investors have filed 7 disclosed large-shareholding filings in internet infinity Inc. (6545), most recently on 2026-03-24. 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 internet infinity Inc. have?: internet infinity Inc. has 7 buy-side and 12 sell-side disclosures on record, covering ¥670M ($4.3M) in total reported value, spanning 2021-03-19 to 2026-03-24.
Where does StockDrifts get internet infinity Inc. 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 internet infinity Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.