Who has been buying Matsumoto Inc. stock?

12 distinct investors have filed 14 disclosed large-shareholding filings in Matsumoto Inc. (7901), most recently on 2026-04-22. 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 Matsumoto Inc. have?

Matsumoto Inc. has 14 buy-side and 10 sell-side disclosures on record, covering ¥928M ($6.0M) in total reported value, spanning 2021-09-06 to 2026-04-22.

Where does StockDrifts get Matsumoto 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.

Matsumoto Inc. 7901

Company

株式会社マツモトMatsumoto Inc.

Investors

Buys

Total Value

¥928M ($6.0M)

Avg Return

-11.72%

Last Filing

2026-04-22

Matsumoto Inc. (7901) has 14 disclosed large-shareholding filings and 10 disclosed disposals on record, filed by 12 distinct investors. Together those filings cover ¥928M ($6.0M) in reported transaction value. The earliest filing StockDrifts holds for Matsumoto Inc. is dated 2021-09-06; the most recent is 2026-04-22. 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 -11.72%, 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
2026-04-22	BUY	Market Buy	中村規 Tadashi Nakamura	passive	100.0K	¥1,107	-16.4%	¥111M ($714K)
2026-04-20	SELL	Market Buy	Brand New Retail Initiative Fund 投資事業有限責任組合無限責任組合員イノー・アソシエイツ株式会社代表取締役池浩太郎 Innoh Associates Inc.	passive	112.4K	¥1,155	+19.9%	¥20M ($126K)
2026-04-20	BUY	unknown	松本滋子	strategic	10.8K	¥1,155	-19.9%	¥12M ($80K)
2026-04-20	BUY	unknown	松本滋子	strategic	10.8K	¥1,155	-19.9%	¥12M ($80K)
2026-04-20	SELL	unknown	松本大輝	activist	15.3K	¥1,155	+19.9%	¥87M ($558K)
2026-04-20	BUY	unknown	松本敬三郎	activist	86.3K	¥1,155	-19.9%	¥100M ($643K)
2026-04-20	SELL	unknown	松本大輝	activist	15.3K	¥1,155	+19.9%	¥87M ($558K)
2026-04-20	BUY	unknown	松本敬三郎	activist	86.3K	¥1,155	-19.9%	¥100M ($643K)
2026-01-08	SELL	unknown	岩藤知義 iwado tomoyoshi	other	21.4K	¥706	-63.6%	¥28M ($180K)
2026-01-08	BUY	unknown	岩藤知義 iwado tomoyoshi	other	60.8K	¥706	+63.6%	¥43M ($277K)
2025-09-11	SELL	Market Buy	株式会社UNIVA・Oakホールディングス UNIVA Oak Holdings Limited	passive	0	¥1,100	-5.0%	¥200M ($1.3M)
2025-06-09	BUY	Market Buy	Brand New Retail Initiative Fund 投資事業有限責任組合無限責任組合員イノー・アソシエイツ株式会社代表取締役池浩太郎 Brand New Retail Initiative Fund LPS	passive	129.4K	¥783	+47.5%	¥101M ($654K)
2025-06-05	BUY	unknown	松本滋子 Shigeko Matsumoto	strategic	10.8K	¥777	+48.6%	¥8M ($54K)
2025-06-05	BUY	unknown	松本大輝 Daiki Matsumoto	activist	90.3K	¥777	+48.6%	¥21M ($135K)
2025-06-05	BUY	unknown	松本滋子 Shigeko Matsumoto	strategic	10.8K	¥777	+48.6%	¥8M ($54K)
2025-06-05	BUY	unknown	松本大輝 Daiki Matsumoto	activist	90.3K	¥777	+48.6%	¥21M ($135K)
2025-06-05	SELL	unknown	松本敬三郎 Keizaburo Matsumoto	activist	86.3K	¥777	-48.6%	¥37M ($236K)
2025-06-05	SELL	unknown	松本敬三郎 Keizaburo Matsumoto	activist	86.3K	¥777	-48.6%	¥37M ($236K)
2024-10-15	BUY	unknown	松本滋子 Shigeko Matsumoto	strategic	10.8K	¥898	+28.6%	¥10M ($63K)
2024-10-15	BUY	unknown	松本大輝 Daiki Matsumoto	activist	63.3K	¥898	+28.6%	¥57M ($367K)
2024-10-15	SELL	unknown	松本敬三郎 Keizaburo Matsumoto	activist	133.3K	¥898	-28.6%	¥50M ($325K)
2024-10-08	BUY	unknown	松本滋子 Shigeko Matsumoto	strategic	10.8K	¥976	+18.3%	¥11M ($68K)
2024-10-08	BUY	unknown	松本大輝 Daiki Matsumoto	activist	63.3K	¥976	+18.3%	¥62M ($399K)
2024-10-08	BUY	unknown	松本敬三郎 Keizaburo Matsumoto	activist	189.3K	¥976	+18.3%	¥185M ($1.2M)
2024-03-22	BUY	Market Buy	株式会社UNIVA・Oakホールディングス UNIVA Oak Holdings Limited	passive	216.1K	¥2,745	-57.9%	¥499M ($3.2M)
2022-12-21	BUY	unknown	松本敬三郎 Keizaburo Matsumoto	activist	63.1K	¥1,906.67	-39.4%	¥120M ($776K)
2022-12-21	BUY	unknown	松本大輝 Daiki Matsumoto	activist	21.1K	¥1,906.67	-39.4%	¥40M ($260K)
2022-12-21	BUY	unknown	松本敬三郎 Keizaburo Matsumoto	activist	63.1K	¥1,906.67	-39.4%	¥120M ($776K)
2022-12-21	BUY	unknown	松本滋子 Shigeko Matsumoto	strategic	3.6K	¥1,906.67	-39.4%	¥7M ($44K)
2022-12-21	BUY	unknown	松本滋子 Shigeko Matsumoto	strategic	3.6K	¥1,906.67	-39.4%	¥7M ($44K)
2022-12-21	BUY	unknown	松本大輝 Daiki Matsumoto	activist	21.1K	¥1,906.67	-39.4%	¥40M ($260K)
2022-09-29	BUY	unknown	松本滋子 Shigeko Matsumoto	strategic	3.6K	¥3,933.33	-70.6%	¥14M ($91K)
2022-09-29	BUY	unknown	松本大輝 Daiki Matsumoto	activist	21.1K	¥3,933.33	-70.6%	¥83M ($535K)
2022-09-29	BUY	unknown	松本滋子 Shigeko Matsumoto	strategic	3.6K	¥3,933.33	-70.6%	¥14M ($91K)
2022-09-29	BUY	unknown	松本和子 Kazuko Matsumoto	strategic	17.8K	¥3,933.33	-70.6%	¥49M ($314K)
2022-09-29	BUY	unknown	中尾祐子 Yuko Nakao	strategic	6.3K	¥3,933.33	-70.6%	¥25M ($160K)
2022-09-29	BUY	unknown	松本大輝 Daiki Matsumoto	activist	21.1K	¥3,933.33	-70.6%	¥3K ($19)
2022-09-29	BUY	unknown	松本敬三郎 Keizaburo Matsumoto	activist	63.1K	¥3,933.33	-70.6%	¥162K ($1K)
2022-09-29	SELL	unknown	松本政敬 MATSUMOTO MASAYOSHI	strategic	0	¥3,933.33	+70.6%	¥975K ($6K)
2022-09-29	BUY	unknown	松本敬三郎 Keizaburo Matsumoto	activist	63.1K	¥3,933.33	-70.6%	¥248M ($1.6M)
2021-09-06	BUY	unknown	松本滋子 Shigeko Matsumoto	strategic	3.6K	¥709.33	+62.8%	¥3M ($16K)
2021-09-06	BUY	unknown	松本和子 Kazuko Matsumoto	strategic	5.4K	¥709.33	+62.8%	¥4M ($25K)
2021-09-06	BUY	unknown	中尾祐子 Yuko Nakao	strategic	6.3K	¥709.33	+62.8%	¥4M ($29K)
2021-09-06	BUY	unknown	松本大輝 Daiki Matsumoto	activist	21.0K	¥709.33	+62.8%	¥3M ($19K)
2021-09-06	BUY	unknown	松本敬三郎 Keizaburo Matsumoto	activist	59.0K	¥709.33	+62.8%	¥54K ($349)
2021-09-06	SELL	unknown	松本政敬 MATSUMOTO MASAYOSHI	strategic	24.8K	¥709.33	-62.8%	¥3M ($18K)

Frequently asked questions

Who has been buying Matsumoto Inc. stock?: 12 distinct investors have filed 14 disclosed large-shareholding filings in Matsumoto Inc. (7901), most recently on 2026-04-22. 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 Matsumoto Inc. have?: Matsumoto Inc. has 14 buy-side and 10 sell-side disclosures on record, covering ¥928M ($6.0M) in total reported value, spanning 2021-09-06 to 2026-04-22.
Where does StockDrifts get Matsumoto 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 Matsumoto Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.