Who has been buying DIC Corporation stock?

17 distinct investors have filed 60 disclosed large-shareholding filings in DIC Corporation (4631), 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 DIC Corporation have?

DIC Corporation has 60 buy-side and 41 sell-side disclosures on record, covering ¥64.8B ($418.0M) in total reported value, spanning 2021-05-12 to 2026-05-13.

Where does StockDrifts get DIC 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.

DIC Corporation 4631

Company

DIC株式会社DIC Corporation

Investors

Buys

Total Value

¥64.8B ($418.0M)

Avg Return

+41.38%

Last Filing

2026-05-13

DIC Corporation (4631) has 60 disclosed large-shareholding filings and 41 disclosed disposals on record, filed by 17 distinct investors. Together those filings cover ¥64.8B ($418.0M) in reported transaction value. The earliest filing StockDrifts holds for DIC Corporation is dated 2021-05-12; 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 +41.38%, 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
2026-05-13	BUY	Market Buy	オアシスマネジメントカンパニーリミテッド(Oasis Management Company Ltd.) Oasis Management Company Ltd.	other	11.0M	¥3,755	+30.9%	¥179M ($1.2M)
2024-10-18	BUY	Market Buy	オアシスマネジメントカンパニーリミテッド(Oasis Management Company Ltd.) Oasis Management Company Ltd.	activist	11.0M	¥3,299	+12.5%	¥9.3B ($60.2M)
2024-10-03	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	1.7M	¥3,287	-12.9%	¥4.5B ($29.1M)
2024-10-03	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	2.5M	¥3,287	+12.9%	¥500M ($3.2M)
2024-10-03	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	3.7K	¥3,287	-12.9%	¥6.3B ($40.4M)
2024-09-19	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	3.1M	¥3,069	+20.9%	¥9.4B ($60.5M)
2024-09-19	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	2.4M	¥3,069	+20.9%	¥7.3B ($46.8M)
2024-09-19	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	23.1K	¥3,069	+20.9%	¥71M ($457K)
2024-08-06	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	1.6M	¥2,729	-36.0%	¥312M ($2.0M)
2024-08-06	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	2.7M	¥2,729	-36.0%	¥2.4B ($15.2M)
2024-07-29	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	51.6K	¥3,094	-19.9%	¥3.7B ($24.1M)
2024-07-29	SELL	negotiated	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	911.6K	¥3,094	-19.9%	¥88M ($570K)
2024-07-29	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.7M	¥3,094	+19.9%	¥29M ($190K)
2024-07-29	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	971.6K	¥3,094	+19.9%	¥3.0B ($19.4M)
2024-07-04	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	1.7M	¥3,068	+20.9%	¥263M ($1.7M)
2024-07-04	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	3.6M	¥3,068	-20.9%	¥3.7B ($23.9M)
2024-07-01	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	¥3,088	+20.1%	¥3.9B ($24.9M)
2024-07-01	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	944.4K	¥3,088	+20.1%	¥2.9B ($18.8M)
2024-07-01	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.7M	¥3,088	+20.1%	¥5.3B ($34.3M)
2024-07-01	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	971.6K	¥3,088	+20.1%	¥3.0B ($19.4M)
2024-04-30	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	1.0M	¥2,955.5	+25.5%	¥253M ($1.6M)
2024-04-30	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.8M	¥2,955.5	-25.5%	¥1.1B ($7.1M)
2024-04-30	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	971.6K	¥2,955.5	+25.5%	¥2.9B ($18.5M)
2024-04-30	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	19.4K	¥2,955.5	+25.5%	¥3.1B ($20.0M)
2024-03-28	BUY	Market Buy	オアシスマネジメントカンパニーリミテッド(Oasis Management Company Ltd.) Oasis Management Company Ltd.	activist	8.1M	¥2,885	+28.6%	¥4.6B ($29.4M)
2024-01-09	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	3.7M	¥2,652.5	-39.9%	¥227M ($1.5M)
2024-01-09	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	53.8K	¥2,652.5	-39.9%	¥2.6B ($16.8M)
2024-01-09	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	78.7K	¥2,652.5	+39.9%	¥209M ($1.3M)
2024-01-05	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	853.2K	¥2,724.5	+36.2%	¥2.3B ($15.0M)
2024-01-05	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	950.9K	¥2,724.5	+36.2%	¥2.6B ($16.7M)
2024-01-05	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	2.1M	¥2,724.5	+36.2%	¥5.8B ($37.4M)
2024-01-05	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	971.6K	¥2,724.5	+36.2%	¥2.6B ($17.1M)
2023-12-28	BUY	acquisition	オアシスマネジメントカンパニーリミテッド(Oasis Management Company Ltd.) Oasis Management Company Ltd.	activist	6.6M	¥2,694	+37.7%	¥17.7B ($114.1M)
2023-12-06	SELL	Market Buy	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	1.6M	¥2,472.5	-50.0%	¥47M ($304K)
2023-12-06	BUY	Market Buy	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	4.8M	¥2,472.5	+50.0%	¥800M ($5.2M)
2023-11-20	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	1.0M	¥2,395.5	+54.9%	¥2.5B ($16.0M)
2023-11-20	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	3.8M	¥2,395.5	+54.9%	¥9.0B ($58.3M)
2023-10-30	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	129.7K	¥2,340	+58.5%	¥303M ($2.0M)
2023-10-30	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	756.0K	¥2,340	+58.5%	¥22M ($144K)
2023-10-30	SELL	negotiated	MUFGセキュリティーズEMEA MUFG Securities EMEA plc	unknown	0	¥2,340	-58.5%	¥5.5B ($35.5M)
2023-10-30	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	2.1M	¥2,340	+58.5%	¥5.0B ($32.2M)
2023-10-30	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	971.6K	¥2,340	+58.5%	¥2.3B ($14.7M)
2023-09-19	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	739.4K	¥2,512	+47.7%	¥1.9B ($12.0M)
2023-09-19	BUY	negotiated	MUFGセキュリティーズEMEA MUFG Securities EMEA plc	other	2.4M	¥2,512	+47.7%	¥5.9B ($38.1M)
2023-09-19	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	2.1M	¥2,512	+47.7%	¥5.4B ($34.6M)
2023-09-19	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	971.6K	¥2,512	+47.7%	¥2.4B ($15.7M)
2023-09-07	SELL	Market Buy	ティー・ロウ・プライス・インターナショナル・リミテッド T. Rowe Price International Ltd.	passive	2.3M	¥2,513	-47.6%	¥3.5B ($22.8M)
2023-09-07	BUY	Market Buy	ティー・ロウ・プライス・ジャパン株式会社 T. Rowe Price Japan, Inc.	passive	1.5M	¥2,513	+47.6%	¥191M ($1.2M)
2023-08-07	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	52.0K	¥2,700	-37.4%	¥2.6B ($16.6M)
2023-08-07	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	819.3K	¥2,700	+37.4%	¥2.2B ($14.3M)

Showing the 50 most recent of 129 filings.

Frequently asked questions

Who has been buying DIC Corporation stock?: 17 distinct investors have filed 60 disclosed large-shareholding filings in DIC Corporation (4631), 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 DIC Corporation have?: DIC Corporation has 60 buy-side and 41 sell-side disclosures on record, covering ¥64.8B ($418.0M) in total reported value, spanning 2021-05-12 to 2026-05-13.
Where does StockDrifts get DIC 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 DIC Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.