Who has been buying Komori Corporation stock?

8 distinct investors have filed 13 disclosed large-shareholding filings in Komori Corporation (6349), most recently on 2026-02-19. 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 Komori Corporation have?

Komori Corporation has 13 buy-side and 14 sell-side disclosures on record, covering ¥1.7B ($10.8M) in total reported value, spanning 2021-04-07 to 2026-02-19.

Where does StockDrifts get Komori Corporation 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.

Komori Corporation 6349

Company

株式会社小森コーポレーションKomori Corporation

Investors

Buys

Total Value

¥1.7B ($10.8M)

Avg Return

+95.05%

Last Filing

2026-02-19

Komori Corporation (6349) has 13 disclosed large-shareholding filings and 14 disclosed disposals on record, filed by 8 distinct investors. Together those filings cover ¥1.7B ($10.8M) in reported transaction value. The earliest filing StockDrifts holds for Komori Corporation is dated 2021-04-07; the most recent is 2026-02-19. 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 +95.05%, 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
2026-08-05	SELL	unknown	ブランデス・インベストメント・パートナーズ・エル・ピー(Brandes Investment Partners, L.P.) Brandes Investment Partners, L.P.	activist	3.6M	¥1,913	-0.2%	¥1.1B ($7.1M)
2026-02-19	SELL	unknown	ブランデス・インベストメント・パートナーズ・エル・ピー(Brandes Investment Partners, L.P.) Brandes Investment Partners, L.P.	activist	4.2M	¥1,765	+8.7%	¥1.2B ($7.6M)
2026-01-23	SELL	unknown	ブランデス・インベストメント・パートナーズ・エル・ピー(Brandes Investment Partners, L.P.) Brandes Investment Partners, L.P.	activist	4.8M	¥1,633	+1.3%	¥969M ($6.3M)
2025-12-24	SELL	unknown	ブランデス・インベストメント・パートナーズ・エル・ピー(Brandes Investment Partners, L.P.) Brandes Investment Partners, L.P.	activist	5.4M	¥1,574	-2.4%	¥859M ($5.5M)
2025-09-16	SELL	unknown	ブランデス・インベストメント・パートナーズ・エル・ピー(Brandes Investment Partners, L.P.) Brandes Investment Partners, L.P.	activist	6.0M	¥1,517	-6.3%	¥868M ($5.6M)
2025-04-07	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.0M	¥986	+63.5%	¥1.0B ($6.6M)
2025-04-07	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	51.1K	¥986	+63.5%	¥50M ($325K)
2025-04-07	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	1.0M	¥986	+63.5%	¥986M ($6.4M)
2025-04-07	BUY	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	strategic	614.0K	¥986	+63.5%	¥605M ($3.9M)
2024-01-31	SELL	unknown	ブランデス・インベストメント・パートナーズ・エル・ピー(Brandes Investment Partners, L.P.) Brandes Investment Partners, L.P.	activist	6.8M	¥1,332	-21.0%	¥768M ($5.0M)
2023-09-01	BUY	Market Buy	ブランデス・インベストメント・パートナーズ・エル・ピー(Brandes Investment Partners, L.P.) Brandes Investment Partners, L.P.	activist	7.5M	¥1,127	+43.0%	¥654M ($4.2M)
2023-05-30	SELL	unknown	ブランデス・インベストメント・パートナーズ・エル・ピー(Brandes Investment Partners, L.P.) Brandes Investment Partners, L.P.	activist	7.0M	¥953	-69.2%	¥548M ($3.5M)
2022-11-08	SELL	Market Buy	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.1M	¥864	-86.6%	¥152M ($983K)
2022-11-08	SELL	Market Buy	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	strategic	452.0K	¥864	-86.6%	¥388M ($2.5M)
2022-11-08	BUY	Market Buy	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	57.9K	¥864	+86.6%	¥15M ($95K)
2022-11-08	BUY	Market Buy	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	1.0M	¥864	+86.6%	¥20M ($127K)
2022-10-17	BUY	Market Buy	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	295.3K	¥715	+125.5%	¥28M ($184K)
2022-10-17	SELL	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.6M	¥715	-125.5%	¥411M ($2.7M)
2022-10-17	BUY	Market Buy	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	462.1K	¥715	+125.5%	¥8M ($52K)
2022-04-15	SELL	unknown	ブランデス・インベストメント・パートナーズ・エル・ピー(Brandes Investment Partners, L.P.) Brandes Investment Partners, L.P.	activist	7.7M	¥692	-132.9%	¥278M ($1.8M)
2022-02-07	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.3M	¥696	+131.6%	¥899M ($5.8M)
2022-02-07	SELL	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	strategic	921.6K	¥696	-131.6%	¥519M ($3.4M)
2022-02-07	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	38.4K	¥696	-131.6%	¥4M ($26K)
2022-02-07	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	1.0M	¥696	+131.6%	¥696M ($4.5M)
2022-01-11	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.3M	¥705	+128.7%	¥914M ($5.9M)
2022-01-11	BUY	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	strategic	1.7M	¥705	+128.7%	¥1.2B ($7.6M)
2022-01-11	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	44.8K	¥705	+128.7%	¥32M ($204K)
2022-01-11	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	1.0M	¥705	+128.7%	¥705M ($4.5M)
2021-04-07	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	1.3M	¥771	-109.1%	¥458M ($3.0M)
2021-04-07	BUY	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	strategic	452.0K	¥771	+109.1%	¥348M ($2.2M)
2021-04-07	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	70.7K	¥771	-109.1%	¥18M ($116K)
2021-04-07	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	1.0M	¥771	+109.1%	¥771M ($5.0M)

Frequently asked questions

Who has been buying Komori Corporation stock?: 8 distinct investors have filed 13 disclosed large-shareholding filings in Komori Corporation (6349), most recently on 2026-02-19. 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 Komori Corporation have?: Komori Corporation has 13 buy-side and 14 sell-side disclosures on record, covering ¥1.7B ($10.8M) in total reported value, spanning 2021-04-07 to 2026-02-19.
Where does StockDrifts get Komori Corporation 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 Komori Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.