Who has been buying Oji Holdings Corporation stock?

24 distinct investors have filed 22 disclosed large-shareholding filings in Oji Holdings Corporation (3861), 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 Oji Holdings Corporation have?

Oji Holdings Corporation has 22 buy-side and 23 sell-side disclosures on record, covering ¥106.8B ($689.3M) in total reported value, spanning 2021-03-19 to 2026-05-11.

Where does StockDrifts get Oji Holdings 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.

Oji Holdings Corporation 3861

Company

王子ホールディングス株式会社Oji Holdings Corporation

Investors

Buys

Total Value

¥106.8B ($689.3M)

Avg Return

+39.65%

Last Filing

2026-05-11

Oji Holdings Corporation (3861) has 22 disclosed large-shareholding filings and 23 disclosed disposals on record, filed by 24 distinct investors. Together those filings cover ¥106.8B ($689.3M) in reported transaction value. The earliest filing StockDrifts holds for Oji Holdings Corporation is dated 2021-03-19; 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 +39.65%, 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
2026-05-11	BUY	unknown	野村アセットマネジメント株式会社	other	45.6M	¥822	-5.2%	¥37.5B ($241.7M)
2026-05-11	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	5.8M	¥822	-5.2%	¥4.7B ($30.6M)
2025-09-19	SELL	negotiated	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	16.8M	¥822.6	-2.3%	¥918M ($5.9M)
2025-09-19	SELL	negotiated	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	21.5M	¥822.6	-2.3%	¥2.3B ($15.1M)
2025-09-19	SELL	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	8.4M	¥822.6	-2.3%	¥1.6B ($10.2M)
2025-04-08	SELL	unknown	株式会社エスグラントコーポレーション S-Grant Corporation Co., Ltd.	unknown	0	¥595.7	-41.3%	¥1.3B ($8.2M)
2025-04-08	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	10.1M	¥595.7	+41.3%	¥6.0B ($39.0M)
2025-04-08	BUY	unknown	株式会社フォルティス Fortis Co., Ltd.	activist	39.7M	¥595.7	+41.3%	¥23.3B ($150.3M)
2025-04-08	BUY	unknown	野村絢 Aya Nomura (Murakami family)	activist	30.0K	¥595.7	+41.3%	¥18M ($115K)
2025-03-06	BUY	Market Buy	株式会社フォルティス Fortis Co., Ltd.	activist	54.4M	¥631.8	+33.2%	¥34.4B ($221.8M)
2025-03-06	BUY	Market Buy	株式会社エスグラントコーポレーション S-Grant Corporation Co., Ltd.	activist	2.2M	¥631.8	+33.2%	¥1.4B ($8.8M)
2025-03-06	SELL	Market Buy	野村絢 Aya Nomura (Murakami family)	activist	30.0K	¥631.8	-33.2%	¥32.9B ($212.5M)
2025-03-06	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	¥631.8	+33.2%	¥63K ($408)
2025-01-22	BUY	unknown	野村絢 Aya Nomura (Murakami family)	activist	52.1M	¥609.1	+38.1%	¥31.8B ($204.9M)
2025-01-22	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	¥609.1	+38.1%	¥61K ($393)
2024-09-20	SELL	negotiated	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	24.3M	¥577.6	-45.7%	¥5.1B ($32.9M)
2024-09-20	BUY	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	17.8M	¥577.6	+45.7%	¥59M ($378K)
2024-09-20	SELL	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	10.3M	¥577.6	-45.7%	¥1.1B ($6.8M)
2024-08-21	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	12.2M	¥579	+45.3%	¥7.1B ($45.6M)
2024-08-21	SELL	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	17.8M	¥579	-45.3%	¥59M ($379K)
2024-08-21	SELL	negotiated	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	33.2M	¥579	-45.3%	¥6.2B ($40.2M)
2024-06-20	BUY	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	17.8M	¥608.7	+38.2%	¥432M ($2.8M)
2024-06-20	SELL	negotiated	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	43.9M	¥608.7	-38.2%	¥6.3B ($40.6M)
2024-06-20	SELL	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	12.2M	¥608.7	-38.2%	¥1.2B ($7.6M)
2024-03-05	SELL	Market Buy	ブラックロック・インスティテューショナル・トラスト・カンパニー、エヌ.エイ.(BlackRock Institutional Trust Company BlackRock Institutional Trust Company, N.A.	passive	5.7M	¥591.3	-42.3%	¥3.7B ($23.6M)
2024-03-05	SELL	Market Buy	ブラックロック・ファンド・アドバイザーズ BlackRock Fund Advisors	passive	10.8M	¥591.3	-42.3%	¥5.7B ($36.8M)
2024-03-05	SELL	Market Buy	ブラックロック・アセット・マネジメント・アイルランド・リミテッド BlackRock Asset Management Ireland Limited	passive	2.8M	¥591.3	-42.3%	¥1.8B ($11.6M)
2024-03-05	BUY	Market Buy	ブラックロック・ファンド・マネジャーズ・リミテッド BlackRock Fund Managers Limited	passive	2.0M	¥591.3	+42.3%	¥1.2B ($7.8M)
2024-03-05	BUY	Market Buy	ブラックロック(ネザーランド)BVBV) BlackRock (Netherlands	passive	1.5M	¥591.3	+42.3%	¥60M ($387K)
2024-03-05	SELL	Market Buy	ブラックロック・ジャパン株式会社 BlackRock Japan Co., Ltd.	passive	17.4M	¥591.3	-42.3%	¥1.5B ($9.7M)
2023-12-05	SELL	Market Buy	ブラックロック・インベストメント・マネジメント(ユーケー)リミテッドLimited) BlackRock Investment Management (UK	passive	905.4K	¥528.2	-59.3%	¥750M ($4.8M)
2023-12-05	SELL	Market Buy	ブラックロック・インスティテューショナル・トラスト・カンパニー、エヌ.エイ.(BlackRock Institutional Trust Company BlackRock Institutional Trust Company, N.A.	passive	11.9M	¥528.2	-59.3%	¥964M ($6.2M)
2023-12-05	BUY	Market Buy	ブラックロック・ファンド・アドバイザーズ BlackRock Fund Advisors	passive	20.5M	¥528.2	+59.3%	¥3.9B ($24.9M)
2023-12-05	BUY	Market Buy	ブラックロック・アセット・マネジメント・アイルランド・リミテッド BlackRock Asset Management Ireland Limited	passive	5.9M	¥528.2	+59.3%	¥964M ($6.2M)
2023-12-05	BUY	Market Buy	ブラックロック・ライフ・リミテッド BlackRock Life Limited	passive	441.1K	¥528.2	+59.3%	¥20.4B ($131.4M)
2023-12-05	BUY	Market Buy	ブラックロック・ファンド・マネジャーズ・リミテッド BlackRock Fund Managers Limited	passive	2.0M	¥528.2	+59.3%	¥1.1B ($6.8M)
2023-12-05	BUY	Market Buy	ブラックロック(ネザーランド)BVBV) BlackRock (Netherlands	passive	1.3M	¥528.2	+59.3%	¥700M ($4.5M)
2023-12-05	BUY	Market Buy	ブラックロック・ジャパン株式会社 BlackRock Japan Co., Ltd.	passive	20.0M	¥528.2	+59.3%	¥2.4B ($15.2M)
2023-09-25	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	22.4M	¥654.3	-28.6%	¥6.6B ($42.4M)
2023-09-25	BUY	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	other	1.3M	¥654.3	+28.6%	¥869M ($5.6M)
2023-09-25	SELL	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	18.0M	¥654.3	-28.6%	¥2.3B ($15.0M)
2023-07-06	BUY	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	17.2M	¥522.7	+61.0%	¥106M ($684K)
2023-07-06	SELL	negotiated	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	54.3M	¥522.7	-61.0%	¥4.5B ($29.1M)
2023-07-06	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	14.1M	¥522.7	+61.0%	¥7.4B ($47.5M)
2022-06-03	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	39.8M	¥564	+49.2%	¥22.2B ($143.4M)
2022-06-03	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	876.7K	¥564	-49.2%	¥2.1B ($13.7M)
2022-05-30	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	157.9K	¥568	+48.1%	¥10.6B ($68.4M)
2022-05-30	SELL	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	9.6M	¥568	-48.1%	¥288M ($1.9M)
2022-05-30	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	29.0M	¥568	-48.1%	¥4.6B ($29.7M)
2022-05-30	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	2.2M	¥568	+48.1%	¥1.3B ($8.1M)

Showing the 50 most recent of 56 filings.

Frequently asked questions

Who has been buying Oji Holdings Corporation stock?: 24 distinct investors have filed 22 disclosed large-shareholding filings in Oji Holdings Corporation (3861), 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 Oji Holdings Corporation have?: Oji Holdings Corporation has 22 buy-side and 23 sell-side disclosures on record, covering ¥106.8B ($689.3M) in total reported value, spanning 2021-03-19 to 2026-05-11.
Where does StockDrifts get Oji Holdings 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 Oji Holdings Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.