Who has been buying Teikoku Sen-i Co., Ltd. stock?

8 distinct investors have filed 15 disclosed large-shareholding filings in Teikoku Sen-i Co., Ltd. (3302), most recently on 2026-04-08. 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 Teikoku Sen-i Co., Ltd. have?

Teikoku Sen-i Co., Ltd. has 15 buy-side and 9 sell-side disclosures on record, covering ¥4.6B ($30.0M) in total reported value, spanning 2021-12-07 to 2026-04-08.

Where does StockDrifts get Teikoku Sen-i 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.

Teikoku Sen-i Co., Ltd. 3302

Company

帝国繊維株式会社Teikoku Sen-i Co., Ltd.

Investors

Buys

Total Value

¥4.6B ($30.0M)

Avg Return

+19.24%

Last Filing

2026-04-08

Teikoku Sen-i Co., Ltd. (3302) has 15 disclosed large-shareholding filings and 9 disclosed disposals on record, filed by 8 distinct investors. Together those filings cover ¥4.6B ($30.0M) in reported transaction value. The earliest filing StockDrifts holds for Teikoku Sen-i Co., Ltd. is dated 2021-12-07; the most recent is 2026-04-08. 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 +19.24%, 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
2026-07-22	BUY	Market Buy	明治安田アセットマネジメント株式会社	passive	101.0K	¥3,340	+2.4%	¥337M ($2.2M)
2026-07-22	BUY	Market Buy	明治安田生命保険相互会社	passive	1.3M	¥3,340	+2.4%	¥4.3B ($27.8M)
2026-04-08	BUY	Market Buy	ニッポン・アクティブ・バリュー・ファンド NIPPON ACTIVE VALUE FUND PLC	activist	1.7M	¥3,015	-6.9%	¥208M ($1.3M)
2026-04-08	BUY	Market Buy	エヌエーブイエフ・セレクト・マスター・ファンド・エルピーFund LP) NAVF Select (Master	activist	577.0K	¥3,015	-6.9%	¥108M ($698K)
2026-04-08	BUY	Market Buy	ダルトン・インベストメンツ・インク(Dalton Investments	activist	642.1K	¥3,015	-6.9%	¥1.9B ($12.5M)
2026-03-10	SELL	Market Buy	ダルトン・インベストメンツ・インク(Dalton Investments	activist	642.1K	¥3,100	+9.1%	¥1.8B ($11.7M)
2026-03-10	BUY	Market Buy	エヌエーブイエフ・セレクト・エルエルシー NAVF Select LLC	activist	540.0K	¥3,100	-9.1%	¥1.5B ($9.8M)
2026-03-10	BUY	Market Buy	ニッポン・アクティブ・バリュー・ファンド NIPPON ACTIVE VALUE FUND PLC	activist	1.6M	¥3,100	-9.1%	¥4.5B ($29.2M)
2025-04-16	BUY	Market Buy	ダルトン・インベストメンツ・インク(Dalton Investments Dalton Investments, Inc.	activist	680.1K	¥2,372	+18.8%	¥98M ($633K)
2025-04-16	BUY	Market Buy	エヌエーブイエフ・セレクト・エルエルシー NAVF Select LLC	activist	357.3K	¥2,372	+18.8%	¥26M ($169K)
2025-04-16	BUY	Market Buy	ニッポン・アクティブ・バリュー・ファンド NIPPON ACTIVE VALUE FUND PLC	activist	1.5M	¥2,372	+18.8%	¥537M ($3.5M)
2025-03-05	SELL	negotiated	損害保険ジャパン株式会社 Sompo Japan Insurance Inc.	strategic	1.0M	¥2,538	-11.1%	¥1.4B ($9.2M)
2025-01-10	BUY	Market Buy	ニッポン・アクティブ・バリュー・ファンド NIPPON ACTIVE VALUE FUND PLC	activist	1.2M	¥2,306	+22.3%	¥2.8B ($18.4M)
2025-01-10	BUY	Market Buy	ダルトン・インベストメンツ・インク(Dalton Investments Dalton Investments, Inc.	activist	639.6K	¥2,306	+22.3%	¥590M ($3.8M)
2025-01-10	BUY	Market Buy	エヌエーブイエフ・セレクト・エルエルシー NAVF Select LLC	activist	347.6K	¥2,306	+22.3%	¥802M ($5.2M)
2024-09-10	BUY	Market Buy	ダルトン・インベストメンツ・インク(Dalton Investments Dalton Investments, Inc.	activist	383.6K	¥2,694	+4.6%	¥645M ($4.2M)
2024-09-10	BUY	Market Buy	エヌエーブイエフ・セレクト・エルエルシー NAVF Select LLC	activist	347.6K	¥2,694	+4.6%	¥936M ($6.0M)
2024-09-10	BUY	Market Buy	ニッポン・アクティブ・バリュー・ファンド NIPPON ACTIVE VALUE FUND PLC	activist	1.2M	¥2,694	+4.6%	¥119M ($765K)
2024-04-23	BUY	Market Buy	ダルトン・インベストメンツ・インク(Dalton Investments Dalton Investments, Inc.	activist	142.6K	¥2,220	+27.0%	¥317M ($2.0M)
2024-04-23	SELL	Market Buy	エヌエーブイエフ・セレクト・エルエルシー NAVF Select LLC	activist	347.6K	¥2,220	-27.0%	¥6M ($39K)
2024-04-23	BUY	Market Buy	ニッポン・アクティブ・バリュー・ファンド NIPPON ACTIVE VALUE FUND PLC	activist	1.2M	¥2,220	+27.0%	¥366M ($2.4M)
2024-02-26	BUY	unknown	エヌエーブイエフ・セレクト・エルエルシー NAVF Select LLC	activist	347.6K	¥2,151	+31.1%	¥748M ($4.8M)
2024-02-26	BUY	unknown	ニッポン・アクティブ・バリュー・ファンド NIPPON ACTIVE VALUE FUND PLC	activist	1.0M	¥2,151	+31.1%	¥2.2B ($14.2M)
2022-08-26	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	481.8K	¥1,664	-69.4%	¥55M ($354K)
2022-08-26	BUY	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	strategic	986.9K	¥1,664	+69.4%	¥438M ($2.8M)
2022-08-26	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	49.2K	¥1,664	+69.4%	¥82M ($528K)
2022-08-26	SELL	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	1.3M	¥1,664	-69.4%	¥5M ($29K)
2022-06-07	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	514.5K	¥1,620	-74.0%	¥31M ($200K)
2022-06-07	BUY	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	strategic	723.2K	¥1,620	+74.0%	¥204M ($1.3M)
2022-06-07	BUY	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	1.3M	¥1,620	+74.0%	¥2.1B ($13.5M)
2021-12-07	SELL	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	1.3M	¥2,150	-31.1%	¥29M ($190K)
2021-12-07	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	534.3K	¥2,150	-31.1%	¥283M ($1.8M)
2021-12-07	SELL	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	strategic	598.0K	¥2,150	-31.1%	¥12M ($76K)

Frequently asked questions

Who has been buying Teikoku Sen-i Co., Ltd. stock?: 8 distinct investors have filed 15 disclosed large-shareholding filings in Teikoku Sen-i Co., Ltd. (3302), most recently on 2026-04-08. 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 Teikoku Sen-i Co., Ltd. have?: Teikoku Sen-i Co., Ltd. has 15 buy-side and 9 sell-side disclosures on record, covering ¥4.6B ($30.0M) in total reported value, spanning 2021-12-07 to 2026-04-08.
Where does StockDrifts get Teikoku Sen-i 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 Teikoku Sen-i Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.