Who has been buying Mercuria Holdings Co., Ltd. stock?

11 distinct investors have filed 18 disclosed large-shareholding filings in Mercuria Holdings Co., Ltd. (7347), most recently on 2026-03-31. 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 Mercuria Holdings Co., Ltd. have?

Mercuria Holdings Co., Ltd. has 18 buy-side and 15 sell-side disclosures on record, covering ¥9.0B ($57.8M) in total reported value, spanning 2021-07-06 to 2026-03-31.

Where does StockDrifts get Mercuria Holdings 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.

Mercuria Holdings Co., Ltd. 7347

Company

株式会社マーキュリアホールディングスMercuria Holdings Co., Ltd.

Investors

Buys

Total Value

¥9.0B ($57.8M)

Avg Return

+6.78%

Last Filing

2026-03-31

Mercuria Holdings Co., Ltd. (7347) has 18 disclosed large-shareholding filings and 15 disclosed disposals on record, filed by 11 distinct investors. Together those filings cover ¥9.0B ($57.8M) in reported transaction value. The earliest filing StockDrifts holds for Mercuria Holdings Co., Ltd. is dated 2021-07-06; the most recent is 2026-03-31. 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 +6.78%, 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
2026-03-31	BUY	Market Buy	日本成長支援パートナーズ株式会社 NGS Partners, Inc.	passive	2.0M	¥707	+10.9%	¥1.4B ($9.1M)
2026-03-31	BUY	Market Buy	日本成長支援パートナーズ株式会社 NGS Partners, Inc.	passive	2.0M	¥707	+10.9%	¥1.4B ($9.1M)
2026-03-16	SELL	negotiated	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	500	¥726	-6.5%	¥1.4B ($9.3M)
2026-03-11	BUY	Market Buy	シルバーケイプ・インベストメンツ・リミテッド(SilverCape Investments Limited) SilverCape Investments Limited	activist	2.4M	¥756	+2.3%	¥187M ($1.2M)
2026-03-03	BUY	Market Buy	日本成長支援パートナーズ株式会社 NGS Partners, Inc.	passive	2.0M	¥739	+4.6%	¥1.5B ($9.5M)
2026-03-03	BUY	Market Buy	日本成長支援パートナーズ株式会社 NGS Partners, Inc.	passive	2.0M	¥739	+4.6%	¥1.5B ($9.5M)
2026-03-03	SELL	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	2.0M	¥739	-4.6%	¥132M ($853K)
2025-09-01	BUY	Market Buy	シルバーケイプ・インベストメンツ・リミテッド(SilverCape Investments Limited) SilverCape Investments Limited	activist	2.2M	¥863	-10.4%	¥469M ($3.0M)
2025-09-01	SELL	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	2.2M	¥863	+10.4%	¥590M ($3.8M)
2025-08-21	BUY	Market Buy	シルバーケイプ・インベストメンツ・リミテッド(SilverCape Investments Limited) SilverCape Investments Limited	activist	1.6M	¥800	-3.4%	¥240M ($1.5M)
2025-05-15	SELL	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	2.8M	¥766	-0.9%	¥182M ($1.2M)
2025-05-14	BUY	Market Buy	シルバーケイプ・インベストメンツ・リミテッド(SilverCape Investments Limited) SilverCape Investments Limited	activist	1.3M	¥811	-4.7%	¥182M ($1.2M)
2025-05-02	BUY	Market Buy	シルバーケイプ・インベストメンツ・リミテッド(SilverCape Investments Limited) SilverCape Investments Limited	activist	1.1M	¥831	-7.0%	¥913M ($5.9M)
2025-04-17	SELL	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	3.1M	¥796	+2.9%	¥173M ($1.1M)
2024-11-06	SELL	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	3.3M	¥870	+11.2%	¥189M ($1.2M)
2024-01-11	BUY	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	3.5M	¥708	+9.2%	¥1.3B ($8.5M)
2024-01-11	SELL	unknown	ユナイテッド・マネージャーズ・ジャパン株式会社 United Managers Japan Inc.	unknown	0	¥708	-9.2%	¥1.3B ($8.1M)
2023-08-04	SELL	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	93.5K	¥758	-2.0%	¥29M ($189K)
2023-08-04	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	188.8K	¥758	-2.0%	¥65M ($420K)
2023-08-04	SELL	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	582.0K	¥758	-2.0%	¥94M ($609K)
2022-11-21	BUY	Market Buy	ユナイテッド・マネージャーズ・ジャパン株式会社 United Managers Japan Inc.	activist	1.8M	¥621	+24.5%	¥69M ($447K)
2022-11-16	SELL	negotiated	豊島俊弘 Toshihiro Toyoshima	activist	609.2K	¥626	-23.5%	¥79M ($512K)
2022-11-16	SELL	negotiated	合同会社ユニオン・ベイ GK Union Bay	activist	424.0K	¥626	-23.5%	¥56M ($364K)
2022-03-17	BUY	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	1.6M	¥483	+60.0%	¥122M ($788K)
2022-03-16	BUY	Market Buy	ユナイテッド・マネージャーズ・ジャパン株式会社 United Managers Japan Inc.	activist	1.7M	¥468	+65.2%	¥103M ($667K)
2021-12-20	SELL	Market Buy	株式会社日本政策投資銀行 Development Bank of Japan Inc.	passive	4.2M	¥584	-32.4%	¥6M ($40K)
2021-12-16	SELL	negotiated	豊島俊弘 Toshihiro Toyoshima	activist	608.0K	¥600	-28.8%	¥1M ($7K)
2021-12-16	SELL	negotiated	合同会社ユニオン・ベイ GK Union Bay	activist	424.0K	¥600	-28.8%	¥1M ($7K)
2021-12-16	BUY	negotiated	伊藤忠商事株式会社 ITOCHU Corporation	strategic	2.4M	¥600	+28.8%	¥1.5B ($9.4M)
2021-10-06	BUY	negotiated	豊島俊弘 Toshihiro Toyoshima	activist	608.0K	¥756	+2.3%	¥460M ($3.0M)
2021-10-06	BUY	negotiated	合同会社ユニオン・ベイ GK Union Bay	activist	424.0K	¥756	+2.3%	¥321M ($2.1M)
2021-07-21	BUY	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	109.9K	¥722	+7.1%	¥79M ($512K)
2021-07-21	BUY	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	225.7K	¥722	+7.1%	¥163M ($1.1M)
2021-07-21	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	582.0K	¥722	+7.1%	¥420M ($2.7M)
2021-07-09	BUY	negotiated	合同会社ユニオン・ベイ GK Union Bay	activist	424.0K	¥734	+5.3%	¥311M ($2.0M)
2021-07-09	BUY	negotiated	豊島俊弘 Toshihiro Toyoshima	activist	608.0K	¥734	+5.3%	¥446M ($2.9M)
2021-07-08	BUY	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	1.1M	¥728	+6.2%	¥837M ($5.4M)
2021-07-08	BUY	Market Buy	ユナイテッド・マネージャーズ・ジャパン株式会社 United Managers Japan Inc.	activist	1.2M	¥728	+6.2%	¥867M ($5.6M)
2021-07-06	BUY	Market Buy	株式会社日本政策投資銀行 Development Bank of Japan Inc.	passive	4.2M	¥782	-1.1%	¥3.3B ($21.2M)
2021-07-06	BUY	negotiated	伊藤忠商事株式会社 ITOCHU Corporation	strategic	2.4M	¥782	-1.1%	¥1.9B ($12.2M)

Frequently asked questions

Who has been buying Mercuria Holdings Co., Ltd. stock?: 11 distinct investors have filed 18 disclosed large-shareholding filings in Mercuria Holdings Co., Ltd. (7347), most recently on 2026-03-31. 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 Mercuria Holdings Co., Ltd. have?: Mercuria Holdings Co., Ltd. has 18 buy-side and 15 sell-side disclosures on record, covering ¥9.0B ($57.8M) in total reported value, spanning 2021-07-06 to 2026-03-31.
Where does StockDrifts get Mercuria Holdings 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 Mercuria Holdings Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.