Who has been buying Alfresa Holdings Corporation stock?

17 distinct investors have filed 19 disclosed large-shareholding filings in Alfresa Holdings Corporation (2784), most recently on 2025-11-04. 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 Alfresa Holdings Corporation have?

Alfresa Holdings Corporation has 19 buy-side and 16 sell-side disclosures on record, covering ¥31.1B ($200.9M) in total reported value, spanning 2021-04-23 to 2025-11-04.

Where does StockDrifts get Alfresa 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.

Alfresa Holdings Corporation 2784

Company

アルフレッサホールディングス株式会社Alfresa Holdings Corporation

Investors

Buys

Total Value

¥31.1B ($200.9M)

Avg Return

+33.07%

Last Filing

2025-11-04

Alfresa Holdings Corporation (2784) has 19 disclosed large-shareholding filings and 16 disclosed disposals on record, filed by 17 distinct investors. Together those filings cover ¥31.1B ($200.9M) in reported transaction value. The earliest filing StockDrifts holds for Alfresa Holdings Corporation is dated 2021-04-23; the most recent is 2025-11-04. 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 +33.07%, 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
2026-06-05	BUY	Market Buy	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	25.2M	¥2,200	-1.0%	¥4.5B ($28.8M)
2025-11-04	BUY	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	23.2M	¥2,177.5	+10.7%	¥4.2B ($27.1M)
2025-03-31	BUY	Market Buy	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	249.0K	¥2,111.5	+14.1%	¥526M ($3.4M)
2025-03-31	SELL	Market Buy	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.3M	¥2,111.5	-14.1%	¥808M ($5.2M)
2025-03-31	SELL	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	4.4M	¥2,111.5	-14.1%	¥7.6B ($49.0M)
2025-03-21	BUY	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	21.2M	¥2,139.5	+12.6%	¥3.2B ($20.9M)
2024-09-20	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	3.1M	¥2,252.5	-7.0%	¥457M ($2.9M)
2024-09-20	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	5.8M	¥2,252.5	-7.0%	¥4.6B ($29.5M)
2024-03-18	BUY	Market Buy	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.7M	¥2,264.5	+6.4%	¥3.9B ($25.1M)
2024-03-18	BUY	Market Buy	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	8.5M	¥2,264.5	+6.4%	¥19.3B ($124.5M)
2023-11-15	SELL	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	20.9M	¥2,446	+1.5%	¥5.1B ($32.6M)
2023-09-15	SELL	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	23.0M	¥2,628	+8.3%	¥5.4B ($34.7M)
2023-03-02	BUY	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	25.0M	¥1,664	+44.8%	¥3.4B ($22.2M)
2023-01-30	SELL	unknown	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	unknown	0	¥1,619	-48.8%	¥1.6B ($10.4M)
2023-01-30	SELL	unknown	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	155.7K	¥1,619	-48.8%	¥427M ($2.8M)
2023-01-30	BUY	unknown	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.7M	¥1,619	+48.8%	¥361M ($2.3M)
2023-01-30	SELL	unknown	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	7.5M	¥1,619	-48.8%	¥1.3B ($8.7M)
2023-01-30	BUY	unknown	エム・ユー投資顧問株式会社 M.U. Investment Advisors Co., Ltd.	passive	260.6K	¥1,619	+48.8%	¥422M ($2.7M)
2022-07-22	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	3.3M	¥1,876	+28.4%	¥6.2B ($40.2M)
2022-07-22	BUY	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	7.8M	¥1,876	+28.4%	¥14.6B ($94.4M)
2022-07-19	BUY	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	23.0M	¥1,840	+30.9%	¥7.8B ($50.3M)
2022-04-18	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	500.6K	¥1,680	+43.4%	¥841M ($5.4M)
2022-04-18	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	1.7M	¥1,680	+43.4%	¥2.8B ($18.3M)
2022-04-18	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	9.7M	¥1,680	+43.4%	¥16.2B ($104.6M)
2022-04-18	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	1.1M	¥1,680	+43.4%	¥1.9B ($12.4M)
2021-07-05	BUY	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	21.7M	¥1,689	+42.7%	¥4.0B ($25.6M)
2021-06-16	BUY	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	19.3M	¥1,700	+41.7%	¥4.1B ($26.3M)
2021-06-04	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	181.1K	¥1,645	-46.5%	¥773M ($5.0M)
2021-06-04	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	1.4M	¥1,645	-46.5%	¥2.6B ($16.7M)
2021-06-04	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	2.0M	¥1,645	-46.5%	¥1.7B ($10.7M)
2021-06-04	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	335.6K	¥1,645	-46.5%	¥889M ($5.7M)
2021-06-04	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	368.0K	¥1,645	+46.5%	¥193M ($1.2M)
2021-06-04	BUY	Market Buy	ブラックロック(ネザーランド)BVBV) BlackRock (Netherlands	passive	257.2K	¥1,645	+46.5%	¥423M ($2.7M)
2021-06-04	SELL	Market Buy	ブラックロック・インベストメント・マネジメント・エルエルシー BlackRock Investment Management LLC	passive	9.6K	¥1,645	-46.5%	¥425M ($2.7M)
2021-06-04	SELL	Market Buy	ブラックロック・アドバイザーズ・エルエルシー(BlackRock Advisers BlackRock Advisers, LLC	passive	6.3K	¥1,645	-46.5%	¥967M ($6.2M)
2021-06-04	SELL	Market Buy	ブラックロック・ジャパン株式会社 BlackRock Japan Co., Ltd.	passive	2.4M	¥1,645	-46.5%	¥1.8B ($11.7M)
2021-06-01	BUY	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	16.9M	¥1,690	+42.6%	¥4.2B ($27.2M)
2021-05-24	BUY	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	14.5M	¥1,662	+45.0%	¥4.3B ($27.5M)
2021-04-23	BUY	subscription	シルチェスター・インターナショナル・インベスターズ・エルエルピー (Silchester International Investors LLP) Silchester International Investors LLP	activist	11.9M	¥2,031	+18.6%	¥24.2B ($155.8M)

Frequently asked questions

Who has been buying Alfresa Holdings Corporation stock?: 17 distinct investors have filed 19 disclosed large-shareholding filings in Alfresa Holdings Corporation (2784), most recently on 2025-11-04. 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 Alfresa Holdings Corporation have?: Alfresa Holdings Corporation has 19 buy-side and 16 sell-side disclosures on record, covering ¥31.1B ($200.9M) in total reported value, spanning 2021-04-23 to 2025-11-04.
Where does StockDrifts get Alfresa 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 Alfresa Holdings Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.