Who has been buying Prestige International Inc. stock?

13 distinct investors have filed 20 disclosed large-shareholding filings in Prestige International Inc. (4290), most recently on 2026-05-12. 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 Prestige International Inc. have?

Prestige International Inc. has 20 buy-side and 20 sell-side disclosures on record, covering ¥22.5B ($144.9M) in total reported value, spanning 2021-06-09 to 2026-05-12.

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.

Prestige International Inc. 4290

Company

株式会社プレステージ・インターナショナルPrestige International Inc.

Investors

Buys

Total Value

¥22.5B ($144.9M)

Avg Return

+2.30%

Last Filing

2026-05-12

Prestige International Inc. (4290) has 20 disclosed large-shareholding filings and 20 disclosed disposals on record, filed by 13 distinct investors. Together those filings cover ¥22.5B ($144.9M) in reported transaction value. The earliest filing StockDrifts holds for Prestige International Inc. is dated 2021-06-09; the most recent is 2026-05-12. Across these filings the average return since disclosure is +2.30%, 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
2026-08-07	BUY	unknown	SMBC日興証券株式会社	other	4.2M	¥695	+4.0%	¥2.9B ($18.6M)
2026-08-07	BUY	Market Buy	三井住友DSアセットマネジメント株式会社	passive	4.5M	¥695	+4.0%	¥3.2B ($20.4M)
2026-08-03	SELL	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	5.3M	¥696	-3.9%	¥903M ($5.8M)
2026-06-22	BUY	Market Buy	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	6.9M	¥641	+12.8%	¥437M ($2.8M)
2026-06-22	BUY	Market Buy	エフアイエーエムエルエルシー FIAM LLC	other	4.3M	¥641	+12.8%	¥899M ($5.8M)
2026-06-22	BUY	Market Buy	フィデリティマネジメントトラストカンパニー Fidelity Management Trust Company	other	408.0K	¥641	+12.8%	¥41M ($266K)
2026-06-22	BUY	Market Buy	エフエムアールインベストメントマネジメントユーケーリミテッドLimited) FMR Investment Management (UK	other	1.1M	¥641	+12.8%	¥313M ($2.0M)
2026-06-08	BUY	unknown	フィデリティマネジメントアンドリサーチカンパニーエルエルシー Fidelity Management & Research Company LLC	corporate	6.3M	¥687	+5.2%	¥4.3B ($27.7M)
2026-06-08	BUY	unknown	エフアイエーエムエルエルシー FIAM LLC	other	2.9M	¥687	+5.2%	¥2.0B ($12.7M)
2026-06-08	BUY	unknown	フィデリティマネジメントトラストカンパニー Fidelity Management Trust Company	other	344.8K	¥687	+5.2%	¥237M ($1.5M)
2026-06-08	BUY	unknown	エフエムアールインベストメントマネジメントユーケーリミテッドLimited) FMR Investment Management (UK	other	600.0K	¥687	+5.2%	¥412M ($2.7M)
2026-05-12	BUY	Market Buy	玉上紀子	strategic	342.8K	¥667	+8.4%	¥8M ($55K)
2026-05-12	BUY	Market Buy	株式会社タマガミインターナショナル	activist	36.6M	¥667	+8.4%	¥976M ($6.3M)
2026-05-12	SELL	unknown	玉上進一	activist	1.6M	¥667	-8.4%	¥492M ($3.2M)
2025-09-19	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	2.4M	¥677	-6.8%	¥103M ($667K)
2025-09-19	SELL	unknown	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	3.9M	¥677	-6.8%	¥172M ($1.1M)
2024-04-10	BUY	unknown	玉上紀子 Noriko Tamakami	strategic	336.0K	¥705	-	-
2024-04-10	SELL	unknown	玉上進一 TAMAGAMI SHINICHI	activist	2.3M	¥705	-2.5%	¥417M ($2.7M)
2024-04-10	BUY	Market Buy	株式会社ヴァレックス・パートナーズ VARECS Partners Limited	activist	6.6M	¥705	+2.5%	¥4.7B ($30.2M)
2024-04-10	SELL	unknown	玉上進一 TAMAGAMI SHINICHI	activist	2.3M	¥705	-2.5%	¥417M ($2.7M)
2024-04-10	BUY	unknown	株式会社タマガミインターナショナル Tamagami International Co., Ltd.	activist	35.6M	¥705	+2.5%	¥517M ($3.3M)
2024-04-10	BUY	unknown	玉上紀子 Noriko Tamakami	strategic	336.0K	¥705	-	-
2024-04-10	BUY	unknown	株式会社タマガミインターナショナル Tamagami International Co., Ltd.	activist	35.6M	¥705	+2.5%	¥517M ($3.3M)
2024-03-25	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	12.7M	¥665	+8.7%	¥1.8B ($11.3M)
2024-03-25	BUY	Market Buy	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	12.7M	¥665	+8.7%	¥1.8B ($11.3M)
2024-02-21	SELL	Market Buy	シュローダー・インベストメント・マネジメント株式会社 Schroder Investment Management(Japan)Limited	passive	5.9M	¥603	-19.9%	¥1.1B ($7.3M)
2024-02-07	BUY	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	10.1M	¥585	+23.6%	¥5.9B ($38.0M)
2024-02-07	BUY	unknown	エフエムアールエルエルシー(FMR LLC) FMR LLC	other	10.1M	¥585	+23.6%	¥5.9B ($38.0M)
2023-12-21	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	2.5M	¥577	+25.3%	¥1.5B ($9.4M)
2023-12-21	BUY	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	4.2M	¥577	+25.3%	¥2.4B ($15.5M)
2023-10-03	SELL	unknown	モンドリアン・インベストメント・パートナーズ・リミテッド(Mondrian Investment Partners Limited) Mondrian Investment Partners Limited	other	5.5M	¥594	-21.7%	¥780M ($5.0M)
2023-07-07	SELL	Market Buy	日本生命保険相互会社 Nippon Life Insurance Company	passive	246.9K	¥588	-23.0%	¥8M ($49K)
2023-07-07	BUY	Market Buy	ニッセイアセットマネジメント株式会社 Nissay Asset Management Company	other	4.5M	¥588	+23.0%	¥2.6B ($16.9M)
2023-06-21	BUY	Market Buy	シュローダー・インベストメント・マネジメント株式会社 Schroder Investment Management(Japan)Limited	passive	7.8M	¥675	+7.1%	¥920M ($5.9M)
2023-06-21	SELL	Market Buy	シュローダー・インベストメント・マネージメント・リミテッド Schroder Investment Management Limited	passive	0	¥675	-7.1%	¥182M ($1.2M)
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	2.4M	¥627	-15.3%	¥202M ($1.3M)
2023-06-06	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	4.0M	¥627	-15.3%	¥685M ($4.4M)
2023-05-22	SELL	Market Buy	日本生命保険相互会社 Nippon Life Insurance Company	passive	251.4K	¥603	-19.9%	¥202M ($1.3M)
2023-05-22	BUY	Market Buy	ニッセイアセットマネジメント株式会社 Nissay Asset Management Company	other	6.3M	¥603	+19.9%	¥3.8B ($24.3M)
2022-10-20	SELL	unknown	モンドリアン・インベストメント・パートナーズ・リミテッド(Mondrian Investment Partners Limited) Mondrian Investment Partners Limited	other	6.8M	¥633	-14.2%	¥812M ($5.2M)
2022-10-11	SELL	Market Buy	カバウター・マネージメント・エルエルシー (Kabouter Management, LLC) Kabouter Management, LLC	passive	5.6M	¥637	-13.5%	¥899M ($5.8M)
2022-09-07	SELL	Market Buy	カバウター・マネージメント・エルエルシー (Kabouter Management, LLC) Kabouter Management, LLC	passive	7.0M	¥661	-9.4%	¥864M ($5.6M)
2022-09-06	BUY	Market Buy	シュローダー・インベストメント・マネジメント株式会社 Schroder Investment Management(Japan)Limited	passive	6.4M	¥650	+11.2%	¥4.2B ($26.9M)
2022-09-06	BUY	Market Buy	シュローダー・インベストメント・マネージメント・リミテッド Schroder Investment Management Limited	passive	262.9K	¥650	+11.2%	¥171M ($1.1M)
2022-08-12	SELL	Market Buy	カバウター・マネージメント・エルエルシー (Kabouter Management, LLC) Kabouter Management, LLC	passive	8.3M	¥673	-7.4%	¥958M ($6.2M)
2022-06-27	BUY	Market Buy	モンドリアン・インベストメント・パートナーズ・リミテッド(Mondrian Investment Partners Limited) Mondrian Investment Partners Limited	other	8.1M	¥631	+14.6%	¥138M ($887K)
2022-05-06	SELL	Market Buy	カバウター・マネージメント・エルエルシー (Kabouter Management, LLC) Kabouter Management, LLC	passive	9.7M	¥617	-17.2%	¥791M ($5.1M)
2022-03-25	BUY	Market Buy	モンドリアン・インベストメント・パートナーズ・リミテッド(Mondrian Investment Partners Limited) Mondrian Investment Partners Limited	other	7.8M	¥740	-2.3%	¥1.0B ($6.5M)
2022-02-07	BUY	unknown	モンドリアン・インベストメント・パートナーズ・リミテッド(Mondrian Investment Partners Limited) Mondrian Investment Partners Limited	other	6.5M	¥722	+0.1%	¥4.7B ($30.2M)
2022-01-06	SELL	subscription	カバウター・マネージメント・エルエルシー (Kabouter Management, LLC) Kabouter Management, LLC	passive	11.0M	¥653	-10.7%	¥845M ($5.5M)

Showing the 50 most recent of 55 filings.

Frequently asked questions

Who has been buying Prestige International Inc. stock?: 13 distinct investors have filed 20 disclosed large-shareholding filings in Prestige International Inc. (4290), most recently on 2026-05-12. 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 Prestige International Inc. have?: Prestige International Inc. has 20 buy-side and 20 sell-side disclosures on record, covering ¥22.5B ($144.9M) in total reported value, spanning 2021-06-09 to 2026-05-12.
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.