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

21 distinct investors have filed 62 disclosed large-shareholding filings in Milbon Co., Ltd. (4919), most recently on 2025-10-21. 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 Milbon Co., Ltd. have?

Milbon Co., Ltd. has 62 buy-side and 37 sell-side disclosures on record, covering ¥66.5B ($429.1M) in total reported value, spanning 2021-04-06 to 2025-10-21.

Where does StockDrifts get Milbon 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.

Milbon Co., Ltd. 4919

Company

株式会社ミルボンMilbon Co., Ltd.

Investors

Buys

Total Value

¥66.5B ($429.1M)

Avg Return

-42.19%

Last Filing

2025-10-21

Milbon Co., Ltd. (4919) has 62 disclosed large-shareholding filings and 37 disclosed disposals on record, filed by 21 distinct investors. Together those filings cover ¥66.5B ($429.1M) in reported transaction value. The earliest filing StockDrifts holds for Milbon Co., Ltd. is dated 2021-04-06; the most recent is 2025-10-21. 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 -42.19%, 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
2025-10-21	SELL	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	1.2M	¥2,409	-13.9%	¥909M ($5.9M)
2025-10-21	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	119.1K	¥2,409	-13.9%	¥24M ($154K)
2025-08-20	SELL	unknown	バーガンディ・アセット・マネジメント・リミテッド(Burgundy Asset Management Ltd.) Burgundy Asset Management Ltd.	other	760.3K	¥2,537	-8.2%	¥2.4B ($15.2M)
2025-05-07	SELL	unknown	みさき投資株式会社 Misaki Capital Inc.	other	1.4M	¥2,696	-1.8%	¥982M ($6.3M)
2025-01-29	BUY	Market Buy	みさき投資株式会社 Misaki Capital Inc.	other	1.7M	¥3,195	-14.1%	¥190M ($1.2M)
2025-01-21	BUY	Market Buy	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	1.6M	¥3,175	-13.6%	¥126M ($814K)
2025-01-21	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	128.5K	¥3,175	-13.6%	¥74M ($475K)
2025-01-21	BUY	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	22.1K	¥3,175	-13.6%	¥7.4B ($47.5M)
2025-01-09	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	1.6M	¥3,350	-18.1%	¥5.2B ($33.5M)
2025-01-09	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	104.7K	¥3,350	+18.1%	¥155M ($1.0M)
2025-01-09	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	-1.6K	¥3,350	-18.1%	-
2024-11-25	BUY	Market Buy	鴻池資産管理株式会社 Konoike Asset Management Co., Ltd.	strategic	2.8M	¥3,555	-22.8%	¥3.1B ($19.7M)
2024-11-25	SELL	Market Buy	鴻池一信 Kazunobu Konoike	strategic	6.6K	¥3,555	+22.8%	¥636M ($4.1M)
2024-09-19	BUY	unknown	みさき投資株式会社 Misaki Capital Inc.	other	1.7M	¥3,022	-9.2%	¥5.0B ($32.4M)
2024-07-04	BUY	unknown	バーガンディ・アセット・マネジメント・リミテッド(Burgundy Asset Management Ltd.) Burgundy Asset Management Ltd.	other	1.7M	¥3,330	-17.6%	¥5.6B ($36.3M)
2024-05-21	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	1.8M	¥3,419	-19.7%	¥6.1B ($39.1M)
2024-05-21	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	153.5K	¥3,419	-19.7%	¥306M ($2.0M)
2024-05-21	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	-1.6K	¥3,419	+19.7%	¥1.1B ($7.3M)
2024-03-07	SELL	Market Buy	キャピタル・グループ・インベストメント・マネージメント・ピーティーイー・リミテッド Capital Group Investment Management Pte. Ltd.	unknown	0	¥3,260	+15.8%	¥194M ($1.3M)
2024-03-07	SELL	Market Buy	キャピタル・インターナショナル・エス・エイ・アール・エル Capital International Sarl	unknown	0	¥3,260	+15.8%	¥410M ($2.6M)
2024-03-07	SELL	Market Buy	キャピタル・インターナショナル・インク(Capital International Capital International, Inc.	unknown	0	¥3,260	+15.8%	¥453M ($2.9M)
2024-03-07	SELL	Market Buy	キャピタル・インターナショナル株式会社 Capital International Co., Ltd.	unknown	0	¥3,260	+15.8%	¥2.8B ($18.0M)
2024-03-07	BUY	Market Buy	キャピタル・リサーチ・アンド・マネージメント・カンパニー Capital Research and Management Company	passive	883.4K	¥3,260	-15.8%	¥2.8B ($18.3M)
2023-12-20	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	2.2M	¥3,627	-24.4%	¥8.0B ($51.9M)
2023-12-20	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	64.2K	¥3,627	-24.4%	¥233M ($1.5M)
2023-12-20	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	3.1K	¥3,627	-24.4%	¥1.0B ($6.7M)
2023-10-06	BUY	Market Buy	ニッセイアセットマネジメント株式会社 Nissay Asset Management Company	other	647.6K	¥4,109	-33.2%	¥2.6B ($16.8M)
2023-10-06	BUY	Market Buy	日本生命保険相互会社 Nippon Life Insurance Company	passive	371.4K	¥4,109	-33.2%	¥1.5B ($9.8M)
2023-09-07	BUY	Market Buy	キャピタル・グループ・インベストメント・マネージメント・ピーティーイー・リミテッド Capital Group Investment Management Pte. Ltd.	passive	58.4K	¥4,634	-40.8%	¥271M ($1.7M)
2023-09-07	BUY	Market Buy	キャピタル・インターナショナル・エス・エイ・アール・エル Capital International Sarl	passive	125.3K	¥4,634	-40.8%	¥581M ($3.7M)
2023-09-07	BUY	Market Buy	キャピタル・インターナショナル・インク Capital International Inc.	passive	138.9K	¥4,634	-40.8%	¥644M ($4.2M)
2023-09-07	BUY	Market Buy	キャピタル・インターナショナル株式会社 Capital International Co., Ltd.	passive	857.1K	¥4,634	-40.8%	¥4.0B ($25.6M)
2023-09-07	BUY	Market Buy	キャピタル・グループ・インベストメント・マネージメント・ピーティーイー・リミテッド Capital Group Investment Management Pte. Ltd.	passive	58.4K	¥4,634	-40.8%	¥271M ($1.7M)
2023-09-07	BUY	Market Buy	キャピタル・インターナショナル・エス・エイ・アール・エル Capital International Sarl	passive	125.3K	¥4,634	-40.8%	¥581M ($3.7M)
2023-09-07	BUY	Market Buy	キャピタル・インターナショナル・インク Capital International Inc.	passive	138.9K	¥4,634	-40.8%	¥644M ($4.2M)
2023-09-07	BUY	Market Buy	キャピタル・インターナショナル株式会社 Capital International Co., Ltd.	passive	857.1K	¥4,634	-40.8%	¥4.0B ($25.6M)
2023-09-07	SELL	Market Buy	キャピタル・リサーチ・アンド・マネージメント・カンパニー Capital Research and Management Company	passive	1.2M	¥4,634	+40.8%	¥3.6B ($23.3M)
2023-09-07	SELL	Market Buy	キャピタル・リサーチ・アンド・マネージメント・カンパニー Capital Research and Management Company	passive	1.2M	¥4,634	+40.8%	¥3.6B ($23.3M)
2023-08-21	BUY	Market Buy	キャピタル・グループ・インベストメント・マネージメント・ピーティーイー・リミテッド Capital Group Investment Management Pte. Ltd.	passive	58.4K	¥4,338	-36.8%	¥29M ($185K)
2023-08-21	BUY	Market Buy	キャピタル・インターナショナル・エス・エイ・アール・エル Capital International Sarl	passive	125.3K	¥4,338	-36.8%	¥43M ($278K)
2023-08-21	BUY	Market Buy	キャピタル・インターナショナル・インク Capital International Inc.	passive	138.9K	¥4,338	-36.8%	¥86M ($556K)
2023-08-21	BUY	Market Buy	キャピタル・インターナショナル株式会社 Capital International Co., Ltd.	passive	857.1K	¥4,338	-36.8%	¥259M ($1.7M)
2023-08-21	BUY	Market Buy	キャピタル・グループ・インベストメント・マネージメント・ピーティーイー・リミテッド Capital Group Investment Management Pte. Ltd.	passive	58.4K	¥4,338	-36.8%	¥29M ($185K)
2023-08-21	BUY	Market Buy	キャピタル・インターナショナル・エス・エイ・アール・エル Capital International Sarl	passive	125.3K	¥4,338	-36.8%	¥43M ($278K)
2023-08-21	BUY	Market Buy	キャピタル・インターナショナル・インク Capital International Inc.	passive	138.9K	¥4,338	-36.8%	¥86M ($556K)
2023-08-21	BUY	Market Buy	キャピタル・インターナショナル株式会社 Capital International Co., Ltd.	passive	857.1K	¥4,338	-36.8%	¥259M ($1.7M)
2023-08-21	SELL	Market Buy	キャピタル・リサーチ・アンド・マネージメント・カンパニー Capital Research and Management Company	passive	2.0M	¥4,338	+36.8%	¥1.6B ($10.1M)
2023-08-21	SELL	Market Buy	キャピタル・リサーチ・アンド・マネージメント・カンパニー Capital Research and Management Company	passive	2.0M	¥4,338	+36.8%	¥1.6B ($10.1M)
2023-07-19	BUY	Market Buy	ジェー・ピー・モルガン・セキュリティーズ・ピーエルシー J.P. Morgan Securities plc	other	140.0K	¥4,929	-44.3%	¥277M ($1.8M)
2023-07-19	SELL	Market Buy	JPモルガン証券株式会社 JPMorgan Securities Japan Co., Ltd.	other	0	¥4,929	+44.3%	¥375M ($2.4M)

Showing the 50 most recent of 127 filings.

Frequently asked questions

Who has been buying Milbon Co., Ltd. stock?: 21 distinct investors have filed 62 disclosed large-shareholding filings in Milbon Co., Ltd. (4919), most recently on 2025-10-21. 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 Milbon Co., Ltd. have?: Milbon Co., Ltd. has 62 buy-side and 37 sell-side disclosures on record, covering ¥66.5B ($429.1M) in total reported value, spanning 2021-04-06 to 2025-10-21.
Where does StockDrifts get Milbon 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 Milbon Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.