Who has been buying Fibergate Inc. stock?

12 distinct investors have filed 23 disclosed large-shareholding filings in Fibergate Inc. (9450), most recently on 2026-04-23. 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 Fibergate Inc. have?

Fibergate Inc. has 23 buy-side and 17 sell-side disclosures on record, covering ¥10.7B ($68.8M) in total reported value, spanning 2021-05-11 to 2026-04-23.

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.

Fibergate Inc. 9450

Company

株式会社ファイバーゲートFibergate Inc.

Investors

Buys

Total Value

¥10.7B ($68.8M)

Avg Return

-33.29%

Last Filing

2026-04-23

Fibergate Inc. (9450) has 23 disclosed large-shareholding filings and 17 disclosed disposals on record, filed by 12 distinct investors. Together those filings cover ¥10.7B ($68.8M) in reported transaction value. The earliest filing StockDrifts holds for Fibergate Inc. is dated 2021-05-11; the most recent is 2026-04-23. Across these filings the average return since disclosure is -33.29%, 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
2026-08-27	BUY	Market Buy	さくら損害保険株式会社	passive	40.6K	¥785	-	-
2026-08-27	BUY	Market Buy	株式会社UH5	passive	977.5K	¥785	-	-
2026-08-27	BUY	Market Buy	光通信株式会社	passive	1.5M	¥785	+0.8%	¥162M ($1.0M)
2026-07-06	BUY	Market Buy	光通信株式会社	passive	1.3M	¥761	+3.9%	¥171M ($1.1M)
2026-07-06	BUY	Market Buy	株式会社UH5	passive	977.5K	¥761	-	-
2026-07-06	BUY	Market Buy	さくら損害保険株式会社	passive	40.6K	¥761	-	-
2026-06-18	BUY	Market Buy	光通信株式会社	passive	1.1M	¥750	+5.5%	¥158M ($1.0M)
2026-06-18	BUY	Market Buy	株式会社UH5	passive	977.5K	¥750	-	-
2026-06-18	BUY	Market Buy	さくら損害保険株式会社	passive	40.6K	¥750	-	-
2026-05-28	BUY	Market Buy	光通信株式会社	passive	862.4K	¥689	+14.8%	¥143M ($925K)
2026-05-28	BUY	Market Buy	株式会社UH5	passive	977.5K	¥689	-	-
2026-05-28	BUY	Market Buy	さくら損害保険株式会社	passive	40.6K	¥689	-	-
2026-04-23	BUY	Market Buy	光通信株式会社	passive	654.7K	¥709	+11.6%	¥120M ($772K)
2026-04-23	BUY	Market Buy	株式会社UH5	passive	977.5K	¥709	-	-
2026-04-23	BUY	Market Buy	さくら損害保険株式会社	passive	40.6K	¥709	-	¥29M ($186K)
2026-04-10	BUY	Market Buy	株式会社UH5	passive	977.5K	¥713	-	-
2026-04-10	BUY	Market Buy	光通信株式会社	passive	485.8K	¥713	+10.9%	¥148M ($957K)
2026-03-25	BUY	Market Buy	光通信株式会社	passive	279.0K	¥714	+10.8%	¥147M ($949K)
2026-03-25	BUY	Market Buy	株式会社UH5	passive	977.5K	¥714	-	-
2026-02-05	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	842.0K	¥698	-13.3%	¥151M ($974K)
2025-12-19	SELL	unknown	三井住友トラスト・アセットマネジメント株式会社	other	159.7K	¥665	-18.9%	¥22M ($141K)
2025-12-19	SELL	unknown	アモーヴァ・アセットマネジメント株式会社	other	898.6K	¥665	-18.9%	¥125M ($804K)
2025-09-19	SELL	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	193.7K	¥748	-5.8%	¥62M ($398K)
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	1.1M	¥748	+5.8%	¥69M ($447K)
2025-03-17	SELL	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	71.3K	¥949	+16.6%	¥909M ($5.9M)
2025-03-17	BUY	Market Buy	株式会社UH5 UH5 Co., Ltd.	passive	977.5K	¥949	-	¥928M ($6.0M)
2025-01-22	BUY	Market Buy	光通信株式会社 Hikari Tsushin K.K.	passive	1.0M	¥876	-9.7%	¥902M ($5.8M)
2023-12-14	SELL	unknown	ニュートン・インベストメント・マネジメント・ジャパン株式会社 Newton Investment Management Japan Ltd	other	672.3K	¥893	+11.4%	¥353M ($2.3M)
2023-11-30	SELL	unknown	ニュートン・インベストメント・マネジメント・ジャパン株式会社 Newton Investment Management Japan Ltd	other	1.1M	¥961	+17.7%	¥386M ($2.5M)
2023-06-27	SELL	unknown	猪又將哲 Inomata Masanori	strategic	5.3M	¥1,443	+45.2%	¥71M ($460K)
2023-06-27	SELL	unknown	株式会社MIコーポレーション MI Corporation Co., Ltd.	unknown	4.7M	¥1,443	+45.2%	¥68M ($441K)
2023-06-15	SELL	unknown	ニュートン・インベストメント・マネジメント・ジャパン株式会社 Newton Investment Management Japan Ltd	other	1.5M	¥1,501	+47.3%	¥340M ($2.2M)
2023-06-06	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	275.5K	¥1,376	+42.5%	¥31M ($201K)
2023-06-06	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	992.5K	¥1,376	-42.5%	¥312M ($2.0M)
2023-05-25	SELL	unknown	ニュートン・インベストメント・マネジメント・ジャパン株式会社 Newton Investment Management Japan Ltd	other	1.7M	¥1,379	+42.6%	¥295M ($1.9M)
2023-04-06	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	299.4K	¥1,038	-23.8%	¥311M ($2.0M)
2023-04-06	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	765.6K	¥1,038	-23.8%	¥795M ($5.1M)
2023-03-17	SELL	unknown	BNYメロン・インベストメント・マネジメント・ジャパン株式会社 BNY Mellon Investment Management Japan Limited	other	0	¥905	+12.6%	¥18M ($115K)
2023-03-17	BUY	unknown	ニュートン・インベストメント・マネジメント・ジャパン株式会社 Newton Investment Management Japan Ltd.	other	1.9M	¥905	-	¥1.7B ($11.1M)
2023-01-20	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	861.7K	¥910	-13.1%	¥773M ($5.0M)
2023-01-20	BUY	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	22.8K	¥910	-	¥21M ($134K)
2023-01-20	SELL	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	33.7K	¥910	+13.1%	¥4M ($24K)
2022-12-07	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	36.8K	¥915	-13.6%	¥34M ($219K)
2022-12-07	SELL	unknown	野村證券株式会社 Nomura Securities Co.,Ltd.	other	16.5K	¥915	+13.6%	¥57M ($365K)
2022-12-07	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	1.1M	¥915	-13.6%	¥981M ($6.3M)
2022-01-11	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	0	¥1,116	+29.1%	¥85M ($549K)
2022-01-11	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	1.3M	¥1,116	-29.1%	¥241M ($1.6M)
2022-01-11	BUY	Market Buy	野村證券株式会社 Nomura Securities Co.,Ltd.	other	77.8K	¥1,116	-29.1%	¥87M ($563K)
2021-10-22	BUY	unknown	ノムラインターナショナルピーエルシー NOMURA INTERNATIONAL PLC	other	75.5K	¥1,347	-	¥102M ($656K)
2021-10-22	BUY	unknown	野村アセットマネジメント株式会社 Nomura Asset Management Co., Ltd.	other	1.1M	¥1,347	-41.3%	¥1.4B ($9.0M)

Showing the 50 most recent of 61 filings.

Frequently asked questions

Who has been buying Fibergate Inc. stock?: 12 distinct investors have filed 23 disclosed large-shareholding filings in Fibergate Inc. (9450), most recently on 2026-04-23. 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 Fibergate Inc. have?: Fibergate Inc. has 23 buy-side and 17 sell-side disclosures on record, covering ¥10.7B ($68.8M) in total reported value, spanning 2021-05-11 to 2026-04-23.
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.