Who has been buying Shimizu Corporation stock?

28 distinct investors have filed 47 disclosed large-shareholding filings in Shimizu Corporation (1803), most recently on 2026-03-04. 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 Shimizu Corporation have?

Shimizu Corporation has 47 buy-side and 18 sell-side disclosures on record, covering ¥160.0B ($1.0B) in total reported value, spanning 2021-08-19 to 2026-03-04.

Where does StockDrifts get Shimizu 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.

Shimizu Corporation 1803

Company

清水建設株式会社Shimizu Corporation

Investors

Buys

Total Value

¥160.0B ($1.0B)

Avg Return

+143.53%

Last Filing

2026-03-04

Shimizu Corporation (1803) has 47 disclosed large-shareholding filings and 18 disclosed disposals on record, filed by 28 distinct investors. Together those filings cover ¥160.0B ($1.0B) in reported transaction value. The earliest filing StockDrifts holds for Shimizu Corporation is dated 2021-08-19; the most recent is 2026-03-04. 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 +143.53%, 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
2026-03-04	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	4.2M	¥3,330	-16.2%	¥11.6B ($74.9M)
2026-03-04	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	10.2M	¥3,330	-16.2%	¥28.5B ($184.0M)
2026-03-04	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	3.9M	¥3,330	-16.2%	¥10.8B ($69.5M)
2026-03-04	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	935.2K	¥3,330	-16.2%	¥2.6B ($16.8M)
2026-03-04	SELL	Market Buy	ブラックロック(ルクセンブルグ)エス・エーS.A.) BlackRock (Luxembourg	passive	698.1K	¥3,330	+16.2%	¥1.9B ($12.6M)
2026-03-04	SELL	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	780.8K	¥3,330	+16.2%	¥2.2B ($14.1M)
2026-03-04	BUY	Market Buy	ブラックロック(ネザーランド)BVBV) BlackRock (Netherlands	passive	1.6M	¥3,330	-16.2%	¥4.4B ($28.2M)
2026-03-04	BUY	Market Buy	ブラックロック・インベストメント・マネジメント (オーストラリア)リミテッドLimited) BlackRock Investment Management (Australia	passive	1.0M	¥3,330	-16.2%	¥2.9B ($18.7M)
2026-03-04	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	passive	1.6M	¥3,330	-16.2%	¥4.5B ($28.7M)
2026-03-04	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	passive	1.8M	¥3,330	-16.2%	¥4.9B ($31.6M)
2026-03-04	SELL	Market Buy	ブラックロック・ジャパン株式会社	passive	10.4M	¥3,330	+16.2%	¥29.1B ($187.7M)
2026-03-04	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	passive	8.2M	¥3,330	+16.2%	¥23.0B ($148.3M)
2025-09-03	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	1.1M	¥2,001.5	+39.5%	¥2.1B ($13.6M)
2025-09-03	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	8.2M	¥2,001.5	+39.5%	¥16.5B ($106.2M)
2025-09-03	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	6.4M	¥2,001.5	+39.5%	¥12.9B ($82.9M)
2025-09-03	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	1.4M	¥2,001.5	+39.5%	¥2.8B ($18.3M)
2025-09-03	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	857.8K	¥2,001.5	+39.5%	¥1.7B ($11.1M)
2025-09-03	BUY	Market Buy	ブラックロック(ルクセンブルグ)エス・エーS.A.) BlackRock (Luxembourg	passive	755.8K	¥2,001.5	+39.5%	¥1.5B ($9.8M)
2025-09-03	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	976.9K	¥2,001.5	+39.5%	¥2.0B ($12.6M)
2025-09-03	BUY	Market Buy	ブラックロック(ネザーランド)BVBV) BlackRock (Netherlands	passive	772.7K	¥2,001.5	+39.5%	¥1.5B ($10.0M)
2025-09-03	BUY	Market Buy	ブラックロック・インベストメント・マネジメント (オーストラリア)リミテッドLimited) BlackRock Investment Management (Australia	passive	830.0K	¥2,001.5	+39.5%	¥1.7B ($10.7M)
2025-09-03	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	1.5M	¥2,001.5	+39.5%	¥3.1B ($19.9M)
2025-09-03	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	1.5M	¥2,001.5	+39.5%	¥3.0B ($19.2M)
2025-09-03	BUY	Market Buy	ブラックロック・ジャパン株式会社 BlackRock Japan Co., Ltd.	passive	11.6M	¥2,001.5	+39.5%	¥23.2B ($150.0M)
2025-02-06	BUY	Market Buy	清水地所株式会社 SHIMIZU&CO.,Ltd.	other	82.7M	¥1,304.5	+114.0%	¥10.4B ($67.0M)
2024-09-20	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	28.0M	¥985.4	+183.3%	¥73M ($473K)
2024-09-20	SELL	Market Buy	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	-507.7K	¥985.4	-183.3%	¥10.2B ($65.7M)
2024-09-20	BUY	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	1.3M	¥985.4	+183.3%	¥1.3B ($8.5M)
2024-07-12	BUY	unknown	社会福祉法人清水基金 Shimizu Foundation	other	38.7M	¥937.2	+197.9%	¥36.3B ($234.0M)
2024-07-12	BUY	unknown	社会福祉法人清水基金 Shimizu Foundation	other	38.7M	¥937.2	+197.9%	¥36.3B ($234.0M)
2024-06-06	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	3.8M	¥838.2	-233.0%	¥3.3B ($21.3M)
2024-06-06	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	1.4M	¥838.2	-233.0%	¥2.7B ($17.3M)
2024-06-06	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	170.4K	¥838.2	+233.0%	¥11.8B ($76.0M)
2024-06-06	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	1.5M	¥838.2	+233.0%	¥249M ($1.6M)
2024-06-06	SELL	Market Buy	ブラックロック(ネザーランド)BVBV) BlackRock (Netherlands	passive	1.2M	¥838.2	-233.0%	¥249M ($1.6M)
2024-06-06	SELL	Market Buy	ブラックロック・ジャパン株式会社 BlackRock Japan Co., Ltd.	passive	11.8M	¥838.2	-233.0%	¥561M ($3.6M)
2024-06-06	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	5.8M	¥838.2	-233.0%	¥3.7B ($23.7M)
2024-06-05	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	28.0M	¥837.2	+233.4%	¥23.4B ($151.0M)
2024-06-05	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	9.8M	¥837.2	+233.4%	¥8.2B ($52.9M)
2024-06-05	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	-7.2K	¥837.2	+233.4%	-
2023-09-27	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	29.6M	¥1,056	-164.3%	¥8.0B ($51.7M)
2023-08-23	BUY	Market Buy	清水地所株式会社 SHIMIZU&CO.,Ltd.	other	77.6M	¥976.2	+186.0%	¥8.4B ($54.3M)
2023-05-18	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	7.8M	¥870	+220.9%	¥6.8B ($43.7M)
2023-05-18	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	10.2M	¥870	+220.9%	¥8.9B ($57.2M)
2023-05-18	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	4.5M	¥870	+220.9%	¥3.9B ($25.5M)
2023-05-18	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	831.8K	¥870	+220.9%	¥724M ($4.7M)
2023-05-18	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	1.2M	¥870	+220.9%	¥1.0B ($6.7M)
2023-05-18	BUY	Market Buy	ブラックロック(ネザーランド)BVBV) BlackRock (Netherlands	passive	1.5M	¥870	+220.9%	¥1.3B ($8.5M)
2023-05-18	BUY	Market Buy	ブラックロック・ジャパン株式会社 BlackRock Japan Co., Ltd.	passive	12.5M	¥870	+220.9%	¥10.9B ($70.3M)
2023-02-03	BUY	block_purchase	清水地所株式会社 SHIMIZU&CO.,Ltd.	other	73.1M	¥699	+299.4%	¥6.2B ($39.8M)

Showing the 50 most recent of 69 filings.

Frequently asked questions

Who has been buying Shimizu Corporation stock?: 28 distinct investors have filed 47 disclosed large-shareholding filings in Shimizu Corporation (1803), most recently on 2026-03-04. 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 Shimizu Corporation have?: Shimizu Corporation has 47 buy-side and 18 sell-side disclosures on record, covering ¥160.0B ($1.0B) in total reported value, spanning 2021-08-19 to 2026-03-04.
Where does StockDrifts get Shimizu 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 Shimizu Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.