Who has been buying DeNA Co., Ltd. stock?

15 distinct investors have filed 53 disclosed large-shareholding filings in DeNA Co., Ltd. (2432), most recently on 2026-05-11. 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 DeNA Co., Ltd. have?

DeNA Co., Ltd. has 53 buy-side and 31 sell-side disclosures on record, covering ¥87.1B ($561.8M) in total reported value, spanning 2021-11-05 to 2026-05-11.

Where does StockDrifts get DeNA 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.

DeNA Co., Ltd. 2432

Company

株式会社ディー・エヌ・エーDeNA Co., Ltd.

Investors

Buys

Total Value

¥87.1B ($561.8M)

Avg Return

+14.72%

Last Filing

2026-05-11

DeNA Co., Ltd. (2432) has 53 disclosed large-shareholding filings and 31 disclosed disposals on record, filed by 15 distinct investors. Together those filings cover ¥87.1B ($561.8M) in reported transaction value. The earliest filing StockDrifts holds for DeNA Co., Ltd. is dated 2021-11-05; the most recent is 2026-05-11. 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 +14.72%, 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
2026-07-22	BUY	unknown	野村アセットマネジメント株式会社	other	5.2M	¥2,429.5	+4.4%	¥12.7B ($81.9M)
2026-07-22	BUY	unknown	野村證券株式会社	other	910.6K	¥2,429.5	+4.4%	¥2.2B ($14.3M)
2026-07-15	BUY	unknown	株式会社ATRA	activist	3.3M	¥2,452	+1.3%	¥8.2B ($53.0M)
2026-07-15	SELL	unknown	株式会社シティインデックスイレブンス	activist	1.2M	¥2,452	-1.3%	¥3.9B ($25.1M)
2026-07-01	BUY	unknown	株式会社ATRA	activist	3.3M	¥2,527.5	-2.2%	¥8.5B ($54.6M)
2026-07-01	BUY	unknown	株式会社シティインデックスイレブンス	activist	2.8M	¥2,527.5	-2.2%	¥7.2B ($46.1M)
2026-06-25	SELL	unknown	株式会社ATRA	activist	3.3M	¥2,358	-1.2%	¥2.7B ($17.5M)
2026-06-25	SELL	unknown	株式会社シティインデックスイレブンス	activist	2.7M	¥2,358	-1.2%	¥893M ($5.8M)
2026-05-29	SELL	unknown	株式会社ATRA	activist	4.5M	¥2,663	+9.7%	¥3.1B ($20.1M)
2026-05-29	BUY	Market Buy	株式会社シティインデックスイレブンス	activist	3.1M	¥2,663	-9.7%	¥260M ($1.7M)
2026-05-11	SELL	unknown	野村アセットマネジメント株式会社	other	5.2M	¥2,662.5	-0.1%	¥423M ($2.7M)
2026-05-11	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	-101.8K	¥2,662.5	-0.1%	¥683M ($4.4M)
2026-05-11	SELL	unknown	野村證券株式会社	other	588.0K	¥2,662.5	-0.1%	¥846M ($5.5M)
2026-04-06	BUY	Market Buy	野村證券株式会社	other	908.2K	¥2,633	-1.8%	¥1.9B ($12.4M)
2026-04-06	BUY	Market Buy	野村アセットマネジメント株式会社	other	5.3M	¥2,633	-1.8%	¥64M ($415K)
2026-04-06	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	153.2K	¥2,633	+1.8%	¥3.1B ($19.9M)
2026-02-26	SELL	unknown	株式会社ATRA	activist	5.7M	¥2,598.5	-5.5%	¥15.5B ($100.2M)
2026-02-26	BUY	unknown	株式会社シティインデックスイレブンス	activist	3.0M	¥2,598.5	-5.5%	¥8.3B ($53.3M)
2026-02-19	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	1.3M	¥2,664.5	+2.9%	¥3.6B ($23.5M)
2026-02-19	BUY	unknown	野村證券株式会社	other	168.2K	¥2,664.5	-2.9%	¥461M ($3.0M)
2026-02-19	BUY	unknown	野村アセットマネジメント株式会社	other	5.3M	¥2,664.5	-2.9%	¥14.6B ($94.2M)
2026-02-19	BUY	unknown	ノムラセキュリテーズインターナショナル NOMURA SECURITIES INTERNATIONAL,Inc.	unknown	0	¥2,664.5	-2.9%	-
2026-02-10	SELL	Market Buy	株式会社ATRA	activist	7.1M	¥2,661	-3.0%	¥19.5B ($125.6M)
2026-02-10	BUY	Market Buy	株式会社シティインデックスイレブンス	activist	3.0M	¥2,661	+3.0%	¥8.3B ($53.3M)
2026-02-05	BUY	Market Buy	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	8.9M	¥2,616.5	+4.8%	¥3.2B ($20.8M)
2026-02-05	BUY	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	6.3M	¥2,616.5	+4.8%	¥192M ($1.2M)
2026-01-08	BUY	unknown	野村アセットマネジメント株式会社	other	5.2M	¥2,580	+6.2%	¥14.3B ($92.0M)
2026-01-08	BUY	unknown	ノムラセキュリテーズインターナショナル NOMURA SECURITIES INTERNATIONAL,Inc.	other	0	¥2,580	+6.2%	-
2026-01-08	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	902.5K	¥2,580	+6.2%	¥2.5B ($16.0M)
2026-01-08	BUY	unknown	野村證券株式会社	other	168.4K	¥2,580	+6.2%	¥462M ($3.0M)
2025-12-25	BUY	Market Buy	株式会社ATRA	activist	7.6M	¥2,557	+7.2%	¥20.9B ($134.8M)
2025-12-25	BUY	Market Buy	株式会社シティインデックスイレブンス	activist	100	¥2,557	-7.2%	¥274K ($2K)
2025-12-19	BUY	unknown	株式会社ATRA	activist	6.4M	¥2,593.5	+5.7%	¥17.5B ($112.8M)
2025-12-19	BUY	unknown	株式会社シティインデックスイレブンス	activist	100	¥2,593.5	+5.7%	¥274K ($2K)
2025-11-20	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	5.2M	¥2,369	+15.7%	¥12.4B ($79.7M)
2025-11-20	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	226.7K	¥2,369	-15.7%	¥1.5B ($9.5M)
2025-11-20	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	198.3K	¥2,369	+15.7%	¥347M ($2.2M)
2025-11-18	BUY	unknown	株式会社シティインデックスファースト City Index First Co., Ltd.	activist	3.9M	¥2,452.5	+11.8%	¥569M ($3.7M)
2025-11-18	SELL	unknown	野村絢 Aya Nomura (Murakami family)	activist	1.3M	¥2,452.5	-11.8%	¥6.8B ($43.7M)
2025-11-18	BUY	unknown	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	100	¥2,452.5	+11.8%	¥245K ($2K)
2025-11-07	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	5.2M	¥2,647.5	+3.5%	¥13.8B ($89.0M)
2025-11-07	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	855.6K	¥2,647.5	+3.5%	¥2.3B ($14.6M)
2025-11-07	BUY	unknown	アモーヴァ・アセットマネジメント株式会社 Amova Asset Management Co., Ltd.	other	2.6M	¥2,647.5	+3.5%	¥32M ($209K)
2025-11-07	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	3.3M	¥2,647.5	-3.5%	¥776M ($5.0M)
2025-11-07	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	49.5K	¥2,647.5	+3.5%	¥131M ($846K)
2025-10-30	BUY	Market Buy	株式会社シティインデックスファースト City Index First Co., Ltd.	activist	3.6M	¥2,675.5	+2.5%	¥3.9B ($25.3M)
2025-10-30	BUY	Market Buy	野村絢 Aya Nomura (Murakami family)	activist	4.1M	¥2,675.5	+2.5%	¥11.0B ($70.8M)
2025-10-30	BUY	Market Buy	株式会社シティインデックスイレブンス City Index Eleven Co., Ltd.	activist	100	¥2,675.5	+2.5%	¥268K ($2K)
2025-10-27	BUY	unknown	株式会社シティインデックスファースト City Index First Co., Ltd.	activist	2.2M	¥2,594.5	+5.7%	¥5.6B ($36.1M)
2025-10-27	BUY	unknown	野村絢 Aya Nomura (Murakami family)	activist	4.1M	¥2,594.5	+5.7%	¥10.6B ($68.7M)

Showing the 50 most recent of 108 filings.

Frequently asked questions

Who has been buying DeNA Co., Ltd. stock?: 15 distinct investors have filed 53 disclosed large-shareholding filings in DeNA Co., Ltd. (2432), most recently on 2026-05-11. 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 DeNA Co., Ltd. have?: DeNA Co., Ltd. has 53 buy-side and 31 sell-side disclosures on record, covering ¥87.1B ($561.8M) in total reported value, spanning 2021-11-05 to 2026-05-11.
Where does StockDrifts get DeNA 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 DeNA Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.