Who has been buying FUJIKURA COMPOSITES Inc. stock?

13 distinct investors have filed 37 disclosed large-shareholding filings in FUJIKURA COMPOSITES Inc. (5121), most recently on 2026-05-13. 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 FUJIKURA COMPOSITES Inc. have?

FUJIKURA COMPOSITES Inc. has 37 buy-side and 35 sell-side disclosures on record, covering ¥10.8B ($69.6M) in total reported value, spanning 2021-03-19 to 2026-05-13.

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.

FUJIKURA COMPOSITES Inc. 5121

Company

藤倉コンポジット株式会社FUJIKURA COMPOSITES Inc.

Investors

Buys

Total Value

¥10.8B ($69.6M)

Avg Return

+162.32%

Last Filing

2026-05-13

FUJIKURA COMPOSITES Inc. (5121) has 37 disclosed large-shareholding filings and 35 disclosed disposals on record, filed by 13 distinct investors. Together those filings cover ¥10.8B ($69.6M) in reported transaction value. The earliest filing StockDrifts holds for FUJIKURA COMPOSITES Inc. is dated 2021-03-19; the most recent is 2026-05-13. Across these filings the average return since disclosure is +162.32%, 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
2026-07-27	BUY	Market Buy	ひびき・パース・アドバイザーズ・エスピーシー Hibiki Path Advisors SPC	activist	1.9M	¥2,487	-	-
2026-07-27	BUY	Market Buy	ひびき・パース・アドバイザーズ2・エスピーシー Hibiki Path Advisors 2 SPC	activist	508.8K	¥2,487	+10.4%	¥499M ($3.2M)
2026-06-03	BUY	Market Buy	ひびき・パース・アドバイザーズ・エスピーシー Hibiki Path Advisors SPC	activist	1.9M	¥2,536	-	-
2026-06-03	BUY	Market Buy	ひびき・パース・アドバイザーズ2・エスピーシー Hibiki Path Advisors 2 SPC	activist	307.0K	¥2,536	+8.3%	¥519M ($3.4M)
2026-05-13	BUY	Market Buy	ひびき・パース・アドバイザーズ・エスピーシー Hibiki Path Advisors SPC	activist	1.9M	¥2,484	+10.6%	¥299M ($1.9M)
2026-05-13	BUY	Market Buy	ひびき・パース・アドバイザーズ2・エスピーシー Hibiki Path Advisors 2 SPC	activist	102.3K	¥2,484	-	¥254M ($1.6M)
2026-04-15	BUY	Market Buy	ひびき・パース・アドバイザーズ・エスピーシー(Hibiki Path Advisors SPC) Hibiki Path Advisors SPC	activist	1.7M	¥2,540	+8.1%	¥622M ($4.0M)
2026-04-06	BUY	unknown	野村證券株式会社	other	85.9K	¥2,560	-	¥220M ($1.4M)
2026-04-06	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	21.2K	¥2,560	-7.3%	¥1.4B ($8.8M)
2026-04-06	SELL	unknown	野村アセットマネジメント株式会社	other	729.5K	¥2,560	-7.3%	¥10M ($66K)
2026-04-01	BUY	Market Buy	ひびき・パース・アドバイザーズ・エスピーシー(Hibiki Path Advisors SPC) Hibiki Path Advisors SPC	activist	1.5M	¥2,518	+9.1%	¥607M ($3.9M)
2026-03-27	BUY	Market Buy	ひびき・パース・アドバイザーズ・エスピーシー(Hibiki Path Advisors SPC) Hibiki Path Advisors SPC	activist	1.2M	¥2,456	+11.8%	¥532M ($3.4M)
2026-03-19	SELL	unknown	野村證券株式会社	other	19.5K	¥2,500	-9.8%	¥10M ($65K)
2026-03-19	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	553.0K	¥2,500	+9.8%	¥798M ($5.1M)
2026-03-19	SELL	unknown	野村アセットマネジメント株式会社	other	732.7K	¥2,500	-9.8%	¥55M ($356K)
2026-03-05	SELL	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	554.3K	¥2,745	-0.0%	¥1.2B ($8.0M)
2026-02-19	BUY	unknown	野村證券株式会社	other	23.6K	¥2,576	+6.6%	¥61M ($393K)
2026-02-19	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	232.5K	¥2,576	+6.6%	¥599M ($3.9M)
2026-02-19	BUY	unknown	野村アセットマネジメント株式会社	other	754.0K	¥2,576	+6.6%	¥1.9B ($12.5M)
2026-01-26	BUY	Market Buy	ひびき・パース・アドバイザーズ・エスピーシー(Hibiki Path Advisors SPC) Hibiki Path Advisors SPC	activist	1.0M	¥2,187	+25.6%	¥2.3B ($14.5M)
2025-12-04	BUY	negotiated	三井住友信託銀行株式会社	strategic	418.0K	¥1,966	+39.7%	¥822M ($5.3M)
2025-12-04	BUY	negotiated	三井住友トラスト・アセットマネジメント株式会社	other	374.2K	¥1,966	+39.7%	¥736M ($4.7M)
2025-12-04	BUY	negotiated	アモーヴァ・アセットマネジメント株式会社	other	283.4K	¥1,966	+39.7%	¥557M ($3.6M)
2025-09-19	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	418.0K	¥1,928	-	-
2025-09-19	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	395.0K	¥1,928	-42.4%	¥95M ($612K)
2025-09-19	SELL	negotiated	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	285.2K	¥1,928	-42.4%	¥63M ($408K)
2025-08-21	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	1.2M	¥1,900	+44.5%	¥2.2B ($14.4M)
2024-12-19	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	418.0K	¥1,456.458	+88.5%	¥609M ($3.9M)
2024-12-19	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	442.2K	¥1,456.458	+88.5%	¥644M ($4.2M)
2024-12-19	BUY	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	318.7K	¥1,456.458	+88.5%	¥464M ($3.0M)
2024-06-24	SELL	unknown	株式会社フジクラ Fujikura Ltd.	strategic	1.0M	¥1,296.901	-111.7%	¥794M ($5.1M)
2024-05-13	SELL	unknown	株式会社フジクラ Fujikura Ltd.	strategic	1.6M	¥1,354.999	-102.7%	¥4.3B ($27.6M)
2024-04-19	SELL	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	984.0K	¥1,325.95	-107.1%	¥317M ($2.0M)
2024-02-21	SELL	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	1.2M	¥1,316.158	-108.6%	¥352M ($2.3M)
2024-01-11	BUY	unknown	株式会社MI2 MI2 Ltd.	activist	448.4K	¥1,322.56	-	-
2024-01-11	SELL	unknown	村上貴輝 Takateru Murakami	activist	716.3K	¥1,322.56	-107.6%	¥316M ($2.0M)
2023-12-20	SELL	unknown	村上貴輝 Takateru Murakami	activist	957.0K	¥1,232.012	-122.9%	¥318M ($2.0M)
2023-12-20	SELL	unknown	株式会社MI2 MI2 Ltd.	activist	448.4K	¥1,232.012	-122.9%	¥43M ($280K)
2023-08-23	BUY	Market Buy	株式会社MI2 MI2 Ltd.	activist	482.7K	¥977.067	+181.1%	¥53M ($340K)
2023-08-23	BUY	Market Buy	村上貴輝 Takateru Murakami	activist	1.2M	¥977.067	+181.1%	¥222M ($1.4M)
2023-08-21	BUY	unknown	株式会社MI2 MI2 Ltd.	activist	428.8K	¥960.19	+186.0%	¥225M ($1.5M)
2023-08-21	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	1.5M	¥960.19	+186.0%	¥227M ($1.5M)
2023-08-21	SELL	unknown	村上貴輝 Takateru Murakami	activist	987.9K	¥960.19	-186.0%	¥47M ($305K)
2023-08-18	BUY	Market Buy	株式会社MI2 MI2 Ltd.	activist	482.7K	¥928.214	+195.8%	¥268M ($1.7M)
2023-08-18	SELL	Market Buy	村上貴輝 Takateru Murakami	activist	987.9K	¥928.214	-195.8%	¥46M ($295K)
2023-06-21	BUY	Market Buy	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	1.3M	¥805.636	+240.8%	¥1.0B ($6.5M)
2023-05-24	BUY	unknown	株式会社MI2 MI2 Ltd.	activist	194.8K	¥781.654	+251.3%	¥152M ($982K)
2023-05-24	BUY	unknown	村上貴輝 Takateru Murakami	activist	1.0M	¥781.654	+251.3%	¥810M ($5.2M)
2023-04-21	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	7.0K	¥874.919	-213.9%	¥154M ($993K)
2023-04-21	BUY	unknown	三井住友DSアセットマネジメント株式会社 Sumitomo Mitsui DS Asset Management Company, Limited	passive	1.2M	¥874.919	-	-

Showing the 50 most recent of 91 filings.

Frequently asked questions

Who has been buying FUJIKURA COMPOSITES Inc. stock?: 13 distinct investors have filed 37 disclosed large-shareholding filings in FUJIKURA COMPOSITES Inc. (5121), most recently on 2026-05-13. 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 FUJIKURA COMPOSITES Inc. have?: FUJIKURA COMPOSITES Inc. has 37 buy-side and 35 sell-side disclosures on record, covering ¥10.8B ($69.6M) in total reported value, spanning 2021-03-19 to 2026-05-13.
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.