Who has been buying Bridgestone Corporation stock?

13 distinct investors have filed 17 disclosed large-shareholding filings in Bridgestone Corporation (5108), most recently on 2026-04-03. 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 Bridgestone Corporation have?

Bridgestone Corporation has 17 buy-side and 9 sell-side disclosures on record, covering ¥40.9B ($263.9M) in total reported value, spanning 2022-10-06 to 2026-04-03.

Where does StockDrifts get Bridgestone 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.

Bridgestone Corporation 5108

Company

株式会社ブリヂストンBridgestone Corporation

Investors

Buys

Total Value

¥40.9B ($263.9M)

Avg Return

+21.15%

Last Filing

2026-04-03

Bridgestone Corporation (5108) has 17 disclosed large-shareholding filings and 9 disclosed disposals on record, filed by 13 distinct investors. Together those filings cover ¥40.9B ($263.9M) in reported transaction value. The earliest filing StockDrifts holds for Bridgestone Corporation is dated 2022-10-06; the most recent is 2026-04-03. 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 +21.15%, 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
2026-04-03	BUY	Market Buy	ブラックロック(ネザーランド)BVBV) BlackRock (Netherlands	passive	4.2M	¥3,337	-3.2%	¥6.2B ($40.2M)
2026-04-03	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	2.3M	¥3,337	-3.2%	¥7.6B ($48.9M)
2026-04-03	SELL	Market Buy	ブラックロック・ジャパン株式会社	passive	21.6M	¥3,337	+3.2%	¥8.0B ($51.7M)
2026-04-03	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	passive	16.0M	¥3,337	-3.2%	¥5.8B ($37.3M)
2026-04-03	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	29.2M	¥3,337	-3.2%	¥19.6B ($126.4M)
2026-04-03	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	11.4M	¥3,337	-3.2%	¥6.7B ($43.1M)
2026-04-03	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	3.5M	¥3,337	-3.2%	¥4.5B ($28.7M)
2026-04-03	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	3.8M	¥3,337	+3.2%	¥1.8B ($11.5M)
2026-04-03	BUY	Market Buy	アペリオ・グループ・エルエルシー(Aperio Group	passive	1.6M	¥3,337	-3.2%	¥5.4B ($35.0M)
2024-05-08	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	7.6M	¥3,166.553	-8.0%	¥41M ($262K)
2024-05-08	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	12.5M	¥3,166.553	+8.0%	¥108M ($700K)
2024-05-08	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	1.2M	¥3,166.553	+8.0%	¥3.7B ($24.0M)
2024-05-08	BUY	Market Buy	ブラックロック(ネザーランド)BVBV) BlackRock (Netherlands	passive	1.3M	¥3,166.553	+8.0%	¥4.2B ($26.9M)
2024-05-08	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	628.3K	¥3,166.553	-8.0%	¥36M ($233K)
2024-05-08	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	¥3,166.553	+8.0%	¥77M ($496K)
2024-05-08	BUY	Market Buy	ブラックロック・ライフ・リミテッド BlackRock Life Limited	passive	179.8K	¥3,166.553	+8.0%	¥655M ($4.2M)
2024-05-08	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	2.4M	¥3,166.553	+8.0%	¥52M ($335K)
2024-05-08	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	393.0K	¥3,166.553	+8.0%	¥1.3B ($8.5M)
2024-05-08	BUY	Market Buy	ブラックロック・ジャパン株式会社 BlackRock Japan Co., Ltd.	passive	12.8M	¥3,166.553	+8.0%	¥66M ($423K)
2023-10-19	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	14.1M	¥2,631.117	-30.0%	¥1.1B ($7.3M)
2023-10-19	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	16.7M	¥2,631.117	-30.0%	¥12.8B ($82.4M)
2023-01-19	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	14.5M	¥2,138.602	+59.9%	¥153M ($985K)
2023-01-19	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	21.6M	¥2,138.602	+59.9%	¥46.1B ($297.6M)
2023-01-10	BUY	Market Buy	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	14.4M	¥2,116.109	+61.6%	¥302M ($1.9M)
2023-01-10	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	21.6M	¥2,116.109	+61.6%	¥151M ($974K)
2022-12-06	SELL	Market Buy	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	14.3M	¥2,230.831	-53.3%	¥159M ($1.0M)
2022-12-06	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	21.5M	¥2,230.831	+53.3%	¥318M ($2.1M)
2022-11-07	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	14.4M	¥2,351.356	+45.5%	¥33.8B ($218.0M)
2022-11-07	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	21.3M	¥2,351.356	+45.5%	¥50.2B ($323.6M)
2022-10-06	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	13.7M	¥2,171.672	-57.5%	¥1.4B ($9.0M)
2022-10-06	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	20.2M	¥2,171.672	-57.5%	¥3.9B ($25.0M)

Frequently asked questions

Who has been buying Bridgestone Corporation stock?: 13 distinct investors have filed 17 disclosed large-shareholding filings in Bridgestone Corporation (5108), most recently on 2026-04-03. 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 Bridgestone Corporation have?: Bridgestone Corporation has 17 buy-side and 9 sell-side disclosures on record, covering ¥40.9B ($263.9M) in total reported value, spanning 2022-10-06 to 2026-04-03.
Where does StockDrifts get Bridgestone 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 Bridgestone Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.