Who has been buying SENKO Group Holdings Co., Ltd. stock?

19 distinct investors have filed 48 disclosed large-shareholding filings in SENKO Group Holdings Co., Ltd. (9069), most recently on 2026-05-13. 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 SENKO Group Holdings Co., Ltd. have?

SENKO Group Holdings Co., Ltd. has 48 buy-side and 36 sell-side disclosures on record, covering ¥86.4B ($557.3M) in total reported value, spanning 2021-03-22 to 2026-05-13.

Where does StockDrifts get SENKO Group Holdings 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.

SENKO Group Holdings Co., Ltd. 9069

Company

センコーグループホールディングス株式会社SENKO Group Holdings Co., Ltd.

Investors

Buys

Total Value

¥86.4B ($557.3M)

Avg Return

+46.67%

Last Filing

2026-05-13

SENKO Group Holdings Co., Ltd. (9069) has 48 disclosed large-shareholding filings and 36 disclosed disposals on record, filed by 19 distinct investors. Together those filings cover ¥86.4B ($557.3M) in reported transaction value. The earliest filing StockDrifts holds for SENKO Group Holdings Co., Ltd. is dated 2021-03-22; the most recent is 2026-05-13. 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 +46.67%, 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
2026-07-02	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	481.9K	¥1,906.5	+15.7%	¥536M ($3.5M)
2026-07-02	BUY	Market Buy	ダルトン・インベストメンツ・インク Dalton Investments, Inc.	activist	20.9M	¥1,906.5	+15.7%	¥2.2B ($14.5M)
2026-07-02	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	¥1,906.5	+15.7%	¥1.9B ($12.3M)
2026-07-02	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	481.9K	¥1,906.5	+15.7%	¥536M ($3.5M)
2026-07-02	BUY	Market Buy	ダルトン・インベストメンツ・インク Dalton Investments, Inc.	activist	20.9M	¥1,906.5	+15.7%	¥2.2B ($14.5M)
2026-07-02	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	¥1,906.5	+15.7%	¥1.9B ($12.3M)
2026-05-13	BUY	unknown	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	192.5K	¥1,849.5	+3.1%	¥356M ($2.3M)
2026-05-13	BUY	Market Buy	ダルトン・インベストメンツ・インク Dalton Investments, Inc.	activist	19.7M	¥1,849.5	+3.1%	¥3.0B ($19.3M)
2026-05-13	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	¥1,849.5	+3.1%	¥1.8B ($11.9M)
2026-04-07	BUY	Market Buy	野村アセットマネジメント株式会社	other	5.1M	¥1,872.5	-2.4%	¥99M ($637K)
2026-04-07	SELL	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	10.9K	¥1,872.5	+2.4%	¥2.0B ($12.7M)
2026-04-07	BUY	Market Buy	野村證券株式会社	other	3.1M	¥1,872.5	-2.4%	¥395M ($2.5M)
2026-02-26	BUY	unknown	ダルトン・インベストメンツ・インク(Dalton Investments	activist	18.1M	¥1,926.5	-1.0%	¥34.5B ($222.9M)
2026-02-26	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	¥1,926.5	+1.0%	¥1.9B ($12.3M)
2026-02-04	BUY	Market Buy	ダルトン・インベストメンツ・インク（Dalton Investments, Inc.） Dalton Investments, Inc.	activist	16.6M	¥1,925	-1.0%	¥4.6B ($29.7M)
2026-01-06	BUY	Market Buy	ダルトン・インベストメンツ・インク(Dalton Investments, Inc.) Dalton Investments, Inc.	activist	14.2M	¥2,019	-5.6%	¥3.6B ($23.1M)
2025-12-19	BUY	unknown	野村アセットマネジメント株式会社	other	5.0M	¥1,933	-1.4%	¥9.5B ($61.6M)
2025-12-19	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	1.1M	¥1,933	-1.4%	¥2.1B ($13.2M)
2025-12-19	BUY	unknown	野村證券株式会社	other	2.9M	¥1,933	-1.4%	¥5.5B ($35.6M)
2025-12-11	BUY	Market Buy	ダルトン・インベストメンツ・インク(Dalton Investments, Inc.) Dalton Investments, Inc.	activist	12.5M	¥1,840	+3.6%	¥3.2B ($20.9M)
2025-12-11	SELL	unknown	旭化成株式会社 ASAHI KASEI CORPORATION	other	7.3M	¥1,840	-3.6%	¥11.2B ($72.6M)
2025-11-25	BUY	Market Buy	ダルトン・インベストメンツ・インク(Dalton Investments, Inc.) Dalton Investments, Inc.	activist	10.7M	¥1,883	+1.3%	¥3.6B ($23.3M)
2025-11-04	SELL	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	67.8K	¥1,999	+4.6%	¥2.5B ($16.1M)
2025-11-04	BUY	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.1M	¥1,999	-4.6%	¥2.3B ($14.7M)
2025-11-04	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	4.8M	¥1,999	+4.6%	¥948M ($6.1M)
2025-11-04	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	1.2M	¥1,999	-4.6%	¥2.3B ($14.8M)
2025-06-04	BUY	acquisition	ダルトン・インベストメンツ・インク(Dalton Investments, Inc.) Dalton Investments, Inc.	activist	8.8M	¥1,745	+9.3%	¥15.3B ($99.0M)
2025-05-08	BUY	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	1.3M	¥1,718	+11.0%	¥2.3B ($14.7M)
2025-05-08	BUY	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.1M	¥1,718	+11.0%	¥1.9B ($12.6M)
2025-05-08	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	5.2M	¥1,718	+11.0%	¥9.0B ($57.9M)
2025-05-08	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	1.2M	¥1,718	+11.0%	¥2.0B ($12.8M)
2025-04-21	BUY	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	67.9K	¥1,645	+15.9%	¥10.5B ($67.9M)
2025-04-21	BUY	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.1M	¥1,645	+15.9%	¥116M ($746K)
2025-04-21	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	5.2M	¥1,645	-15.9%	¥1.8B ($11.4M)
2025-04-21	SELL	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	1.2M	¥1,645	-15.9%	¥23.1B ($149.2M)
2025-01-10	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	1.7M	¥1,458	-30.8%	¥5.7B ($36.6M)
2025-01-10	BUY	unknown	みずほインターナショナル Mizuho International plc	unknown	0	¥1,458	+30.8%	-
2025-01-10	BUY	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	4.5M	¥1,458	+30.8%	¥282M ($1.8M)
2024-12-20	SELL	Market Buy	みずほインターナショナル Mizuho International plc	other	0	¥1,515	-25.8%	¥365M ($2.4M)
2024-12-20	BUY	Market Buy	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	4.5M	¥1,515	+25.8%	¥900M ($5.8M)
2024-12-20	BUY	Market Buy	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	5.8M	¥1,515	+25.8%	¥389M ($2.5M)
2024-11-21	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	2.0M	¥1,495	-27.5%	¥3.3B ($21.4M)
2024-11-21	BUY	unknown	三井住友トラスト・アセットマネジメント株式会社 Sumitomo Mitsui Trust Asset Management Co.,Ltd.	other	4.6M	¥1,495	+27.5%	¥611M ($3.9M)
2024-10-22	BUY	Market Buy	みずほインターナショナル Mizuho International plc	other	253.9K	¥1,347	+41.5%	¥317M ($2.0M)
2024-10-22	BUY	Market Buy	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	3.9M	¥1,347	+41.5%	¥1.1B ($7.1M)
2024-10-22	BUY	Market Buy	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	5.5M	¥1,347	+41.5%	¥127M ($819K)
2024-10-21	BUY	negotiated	三菱UFJモルガン・スタンレー証券株式会社 Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.	other	559.1K	¥1,356	+40.6%	¥758M ($4.9M)
2024-10-21	BUY	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	945.1K	¥1,356	+40.6%	¥1.3B ($8.3M)
2024-10-21	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	5.6M	¥1,356	+40.6%	¥7.6B ($48.9M)
2024-10-21	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	1.2M	¥1,356	+40.6%	¥1.6B ($10.1M)

Showing the 50 most recent of 98 filings.

Frequently asked questions

Who has been buying SENKO Group Holdings Co., Ltd. stock?: 19 distinct investors have filed 48 disclosed large-shareholding filings in SENKO Group Holdings Co., Ltd. (9069), most recently on 2026-05-13. 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 SENKO Group Holdings Co., Ltd. have?: SENKO Group Holdings Co., Ltd. has 48 buy-side and 36 sell-side disclosures on record, covering ¥86.4B ($557.3M) in total reported value, spanning 2021-03-22 to 2026-05-13.
Where does StockDrifts get SENKO Group Holdings 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 SENKO Group Holdings Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.