Who has been buying Dentsu Group Inc. stock?

25 distinct investors have filed 157 disclosed large-shareholding filings in Dentsu Group Inc. (4324), most recently on 2026-05-12. 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 Dentsu Group Inc. have?

Dentsu Group Inc. has 157 buy-side and 136 sell-side disclosures on record, covering ¥1.06T ($6.8B) in total reported value, spanning 2021-04-06 to 2026-05-12.

Where does StockDrifts get Dentsu Group 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.

Dentsu Group Inc. 4324

Company

株式会社電通グループDentsu Group Inc.

Investors

Buys

157

Total Value

¥1.06T ($6.8B)

Avg Return

-16.11%

Last Filing

2026-05-12

Dentsu Group Inc. (4324) has 157 disclosed large-shareholding filings and 136 disclosed disposals on record, filed by 25 distinct investors. Together those filings cover ¥1.06T ($6.8B) in reported transaction value. The earliest filing StockDrifts holds for Dentsu Group Inc. is dated 2021-04-06; the most recent is 2026-05-12. 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 -16.11%, 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
2026-08-06	BUY	unknown	三井住友トラスト・アセットマネジメント株式会社	other	5.5M	¥3,549	+6.5%	¥19.4B ($125.5M)
2026-08-06	BUY	unknown	アモーヴァ・アセットマネジメント株式会社	other	8.3M	¥3,549	+6.5%	¥29.4B ($189.5M)
2026-07-23	BUY	unknown	アセットマネジメントOne株式会社	other	5.7M	¥3,362	+12.4%	¥19.3B ($124.4M)
2026-07-23	BUY	unknown	みずほ信託銀行株式会社	other	900.6K	¥3,362	+12.4%	¥3.0B ($19.5M)
2026-07-23	BUY	unknown	みずほ証券株式会社	other	8.0M	¥3,362	+12.4%	¥26.7B ($172.5M)
2026-07-22	BUY	Market Buy	野村アセットマネジメント株式会社	other	15.6M	¥3,366	+12.2%	¥716M ($4.6M)
2026-07-22	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	4.8M	¥3,366	-12.2%	¥358M ($2.3M)
2026-07-22	BUY	Market Buy	野村證券株式会社	other	174.4K	¥3,366	+12.2%	¥358M ($2.3M)
2026-07-06	BUY	Market Buy	野村アセットマネジメント株式会社	other	15.4M	¥3,305	+4.8%	¥966M ($6.2M)
2026-07-06	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	5.0M	¥3,305	-4.8%	¥351M ($2.3M)
2026-07-06	SELL	unknown	野村證券株式会社	other	71.1K	¥3,305	-4.8%	¥264M ($1.7M)
2026-06-19	BUY	Market Buy	野村アセットマネジメント株式会社	other	15.1M	¥2,976	+17.8%	¥13.4B ($86.8M)
2026-06-19	BUY	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	5.0M	¥2,976	+17.8%	¥1.1B ($7.1M)
2026-06-19	BUY	unknown	野村證券株式会社	other	171.7K	¥2,976	+17.8%	¥511M ($3.3M)
2026-06-04	SELL	unknown	野村アセットマネジメント株式会社	other	10.6M	¥3,075	-5.5%	¥10.6B ($68.6M)
2026-06-04	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	4.7M	¥3,075	-5.5%	¥899M ($5.8M)
2026-06-04	BUY	unknown	野村證券株式会社	other	162.8K	¥3,075	+5.5%	¥501M ($3.2M)
2026-05-22	SELL	unknown	アセットマネジメントOne株式会社	other	5.5M	¥3,049	+2.4%	¥81M ($523K)
2026-05-22	BUY	unknown	みずほ信託銀行株式会社	other	900.6K	¥3,049	-2.4%	¥2.7B ($17.7M)
2026-05-22	SELL	unknown	みずほ証券株式会社	other	5.2M	¥3,049	+2.4%	¥8.3B ($53.9M)
2026-05-21	BUY	Market Buy	野村アセットマネジメント株式会社	other	14.1M	¥3,121	-1.6%	¥6.7B ($43.4M)
2026-05-21	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	5.0M	¥3,121	+1.6%	¥5.1B ($32.6M)
2026-05-21	SELL	unknown	野村證券株式会社	other	151.0K	¥3,121	+1.6%	¥1.1B ($7.0M)
2026-05-12	BUY	unknown	アセットマネジメントOne株式会社	other	5.5M	¥3,086	+0.4%	¥16.9B ($109.3M)
2026-05-12	BUY	unknown	みずほ信託銀行株式会社	other	900.6K	¥3,086	+0.4%	¥2.8B ($17.9M)
2026-05-12	BUY	unknown	みずほ証券株式会社	other	7.9M	¥3,086	+0.4%	¥24.5B ($158.2M)
2026-05-11	SELL	unknown	野村アセットマネジメント株式会社	other	11.9M	¥2,989.5	-3.6%	¥2.9B ($18.5M)
2026-05-11	BUY	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	6.6M	¥2,989.5	+3.6%	¥5.2B ($33.3M)
2026-05-11	BUY	Market Buy	野村證券株式会社	other	515.3K	¥2,989.5	+3.6%	¥1.1B ($7.2M)
2026-04-22	SELL	unknown	アセットマネジメントOne株式会社	other	5.5M	¥3,075	+0.2%	¥654M ($4.2M)
2026-04-22	BUY	unknown	みずほ信託銀行株式会社	other	900.6K	¥3,075	-0.2%	¥2.8B ($17.9M)
2026-04-22	SELL	unknown	みずほ証券株式会社	other	6.1M	¥3,075	+0.2%	¥5.3B ($34.3M)
2026-03-19	SELL	Market Buy	野村アセットマネジメント株式会社	other	12.9M	¥2,770	-14.7%	¥40.9B ($263.6M)
2026-03-19	BUY	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	4.9M	¥2,770	+14.7%	¥15.4B ($99.5M)
2026-03-19	BUY	Market Buy	野村證券株式会社	other	137.6K	¥2,770	+14.7%	¥437M ($2.8M)
2026-02-19	BUY	unknown	野村アセットマネジメント株式会社	other	13.9M	¥2,853.5	+11.4%	¥44.1B ($284.8M)
2026-02-19	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	4.4M	¥2,853.5	-11.4%	¥14.0B ($90.2M)
2026-02-19	SELL	unknown	野村證券株式会社	other	71.7K	¥2,853.5	-11.4%	¥228M ($1.5M)
2026-02-05	SELL	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	12.9M	¥2,794.5	-13.7%	¥1.9B ($12.5M)
2026-01-22	BUY	unknown	アセットマネジメントOne株式会社	other	5.7M	¥3,066	+3.7%	¥18.2B ($117.4M)
2026-01-22	BUY	unknown	みずほ信託銀行株式会社	other	900.6K	¥3,066	+3.7%	¥2.9B ($18.5M)
2026-01-22	BUY	unknown	みずほ証券株式会社	other	7.8M	¥3,066	+3.7%	¥24.8B ($160.3M)
2026-01-21	BUY	Market Buy	野村アセットマネジメント株式会社	other	13.1M	¥3,027	+5.0%	¥41.7B ($268.8M)
2026-01-21	BUY	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	4.9M	¥3,027	+5.0%	¥15.6B ($100.5M)
2026-01-21	SELL	Market Buy	野村證券株式会社	other	137.4K	¥3,027	-5.0%	¥437M ($2.8M)
2026-01-21	BUY	unknown	アモーヴァ・アセットマネジメント株式会社	other	7.9M	¥3,027	+5.0%	¥25.1B ($162.2M)
2026-01-21	SELL	unknown	三井住友トラスト・アセットマネジメント株式会社	other	5.7M	¥3,027	-5.0%	¥18.1B ($116.6M)
2026-01-09	SELL	unknown	野村アセットマネジメント株式会社	other	10.4M	¥3,469	+8.4%	¥32.9B ($212.3M)
2026-01-09	SELL	unknown	野村證券株式会社	other	186.3K	¥3,469	+8.4%	¥592M ($3.8M)
2026-01-09	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	4.8M	¥3,469	+8.4%	¥15.3B ($98.7M)

Showing the 50 most recent of 200 filings.

Frequently asked questions

Who has been buying Dentsu Group Inc. stock?: 25 distinct investors have filed 157 disclosed large-shareholding filings in Dentsu Group Inc. (4324), most recently on 2026-05-12. 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 Dentsu Group Inc. have?: Dentsu Group Inc. has 157 buy-side and 136 sell-side disclosures on record, covering ¥1.06T ($6.8B) in total reported value, spanning 2021-04-06 to 2026-05-12.
Where does StockDrifts get Dentsu Group 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 Dentsu Group Inc.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.