Who has been buying Terumo Corporation stock?

25 distinct investors have filed 26 disclosed large-shareholding filings in Terumo Corporation (4543), most recently on 2026-04-21. 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 Terumo Corporation have?

Terumo Corporation has 26 buy-side and 18 sell-side disclosures on record, covering ¥266.8B ($1.7B) in total reported value, spanning 2021-07-21 to 2026-04-21.

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.

Terumo Corporation 4543

Company

テルモ株式会社Terumo Corporation

Investors

Buys

Total Value

¥266.8B ($1.7B)

Avg Return

-3.10%

Last Filing

2026-04-21

Terumo Corporation (4543) has 26 disclosed large-shareholding filings and 18 disclosed disposals on record, filed by 25 distinct investors. Together those filings cover ¥266.8B ($1.7B) in reported transaction value. The earliest filing StockDrifts holds for Terumo Corporation is dated 2021-07-21; the most recent is 2026-04-21. Across these filings the average return since disclosure is -3.10%, 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
2026-05-21	BUY	unknown	野村證券株式会社	other	4.1M	¥2,332	-	¥9.6B ($61.9M)
2026-05-21	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	2.0M	¥2,332	-	¥4.6B ($29.9M)
2026-05-21	BUY	Market Buy	野村アセットマネジメント株式会社	other	130.0M	¥2,332	-1.5%	¥24.9B ($160.4M)
2026-04-21	BUY	Market Buy	マサチューセッツ・ファイナンシャル・サービセズ・カンパニー Massachusetts Financial Services Company	passive	97.1M	¥2,144.5	+7.1%	¥31.8B ($204.8M)
2026-04-21	BUY	Market Buy	MFSインベストメント・マネジメント株式会社	passive	1.6M	¥2,144.5	+7.1%	¥635M ($4.1M)
2026-03-19	BUY	Market Buy	マサチューセッツ・ファイナンシャル・サービセズ・カンパニー Massachusetts Financial Services Company	passive	82.4M	¥2,039	+12.6%	¥167.9B ($1.1B)
2026-03-19	BUY	Market Buy	MFSインベストメント・マネジメント株式会社	passive	1.4M	¥2,039	+12.6%	¥2.8B ($17.9M)
2025-10-17	BUY	Market Buy	ブラックロック・ジャパン株式会社 BlackRock Japan Co., Ltd.	passive	34.0M	¥2,477	-7.3%	¥13.2B ($85.2M)
2025-10-17	BUY	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	2.2M	¥2,477	-7.3%	¥1.8B ($11.8M)
2025-10-17	BUY	Market Buy	ブラックロック・フィナンシャル・マネジメント・インク(BlackRock Financial Management BlackRock Financial Management, Inc.	passive	1.8M	¥2,477	-	¥4.5B ($29.2M)
2025-10-17	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	1.4M	¥2,477	+7.3%	¥1.1B ($7.1M)
2025-10-17	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	3.7M	¥2,477	-7.3%	¥733M ($4.7M)
2025-10-17	BUY	Market Buy	ブラックロック・アセット・マネジメント・カナダ・リミテッド BlackRock Asset Management Canada Limited	passive	2.1M	¥2,477	-	¥5.3B ($34.2M)
2025-10-17	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	9.5M	¥2,477	+7.3%	¥1.1B ($7.1M)
2025-10-17	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	25.1M	¥2,477	-7.3%	¥11.4B ($73.3M)
2025-10-17	BUY	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	21.0M	¥2,477	-7.3%	¥3.3B ($21.3M)
2025-10-17	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	2.4M	¥2,477	+7.3%	¥1.1B ($7.1M)
2025-10-17	BUY	Market Buy	ブラックロック(ネザーランド)BVBV) BlackRock (Netherlands	passive	4.9M	¥2,477	-7.3%	¥6.2B ($40.2M)
2025-09-19	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	39.3M	¥2,458.5	-6.6%	¥5.5B ($35.2M)
2025-09-19	BUY	Market Buy	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	62.2M	¥2,458.5	-6.6%	¥7.3B ($47.0M)
2024-09-30	SELL	unknown	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	unknown	0	¥2,700	+14.9%	¥48.3B ($311.6M)
2024-09-30	SELL	unknown	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	23.1M	¥2,700	+14.9%	¥35.4B ($228.5M)
2024-09-30	BUY	unknown	三菱UFJアセットマネジメント株式会社 Mitsubishi UFJ Financial Group Inc.	passive	30.3M	¥2,700	-14.9%	¥2.8B ($18.2M)
2024-09-30	BUY	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	2.0M	¥2,700	-14.9%	¥402M ($2.6M)
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	29.2M	¥2,731	+15.9%	¥4.5B ($28.9M)
2024-07-29	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	18.0M	¥2,731	-	-
2024-07-29	BUY	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	36.2M	¥2,731	-15.9%	¥2.4B ($15.8M)
2024-07-29	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	1.8M	¥2,731	-	¥4.9B ($31.5M)
2023-10-16	BUY	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	9.0M	¥1,887	-	-
2023-10-16	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	17.7M	¥1,887	-21.7%	¥8.0B ($51.9M)
2023-10-16	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	15.5M	¥1,887	+21.7%	¥1.7B ($10.9M)
2023-06-05	SELL	negotiated	株式会社三菱UFJ銀行 Mitsubishi UFJ Financial Group Inc.	strategic	9.0M	¥2,222	-3.4%	¥4.7B ($30.0M)
2023-06-05	SELL	negotiated	三菱UFJ信託銀行株式会社 Mitsubishi UFJ Financial Group Inc.	passive	22.0M	¥2,222	-3.4%	¥12.5B ($80.4M)
2023-06-05	BUY	negotiated	三菱UFJ国際投信株式会社 Mitsubishi UFJ Financial Group Inc.	passive	14.6M	¥2,222	+3.4%	¥332M ($2.1M)
2023-04-21	SELL	unknown	株式会社みずほ銀行 Mizuho Bank, Ltd.	strategic	12.9M	¥1,976	-16.2%	¥5.2B ($33.4M)
2023-04-21	BUY	unknown	みずほ信託銀行株式会社 Mizuho Trust & Banking Co., Ltd.	strategic	1.8M	¥1,976	+16.2%	¥148M ($953K)
2023-04-21	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	21.6M	¥1,976	-16.2%	¥4.3B ($27.6M)
2023-04-21	SELL	unknown	みずほ証券株式会社 Mizuho Securities Co., Ltd.	unknown	0	¥1,976	-16.2%	¥5.6B ($36.2M)
2023-01-10	SELL	Market Buy	第一生命保険株式会社 The Dai-ichi Life Insurance Company, Limited	passive	32.9M	¥1,784.5	-28.7%	¥13.8B ($89.2M)
2022-06-06	BUY	Market Buy	ブラックロック・ジャパン株式会社 BlackRock Japan Co., Ltd.	passive	14.8M	¥2,065	+11.2%	¥6.3B ($40.5M)
2022-06-06	BUY	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	764.0K	¥2,065	-	¥1.6B ($10.2M)
2022-06-06	BUY	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	1.0M	¥2,065	+11.2%	¥157M ($1.0M)
2022-06-06	BUY	Market Buy	ブラックロック(ネザーランド)BVBV) BlackRock (Netherlands	passive	1.2M	¥2,065	-	¥2.5B ($16.4M)
2022-06-06	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	1.8M	¥2,065	-	¥3.6B ($23.5M)
2022-06-06	BUY	Market Buy	ブラックロック・ライフ・リミテッド BlackRock Life Limited	passive	334.2K	¥2,065	+11.2%	¥59.9B ($386.5M)
2022-06-06	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	5.1M	¥2,065	+11.2%	¥4.5B ($29.3M)
2022-06-06	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	10.6M	¥2,065	+11.2%	¥784M ($5.1M)
2022-06-06	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	10.1M	¥2,065	-11.2%	¥627M ($4.0M)
2022-06-06	BUY	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	1.4M	¥2,065	+11.2%	¥471M ($3.0M)
2022-03-23	SELL	unknown	アセットマネジメントOne株式会社 Asset Management One Co., Ltd.	other	24.1M	¥1,928	-19.1%	¥1.5B ($9.4M)

Showing the 50 most recent of 59 filings.

Frequently asked questions

Who has been buying Terumo Corporation stock?: 25 distinct investors have filed 26 disclosed large-shareholding filings in Terumo Corporation (4543), most recently on 2026-04-21. 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 Terumo Corporation have?: Terumo Corporation has 26 buy-side and 18 sell-side disclosures on record, covering ¥266.8B ($1.7B) in total reported value, spanning 2021-07-21 to 2026-04-21.
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.

More on this data

Every trade listed above comes from an official regulatory disclosure. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.