Who has been buying Hirata Corporation stock?

7 distinct investors have filed 10 disclosed large-shareholding filings in Hirata Corporation (6258), most recently on 2025-04-22. 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 Hirata Corporation have?

Hirata Corporation has 10 buy-side and 8 sell-side disclosures on record, covering ¥555M ($3.6M) in total reported value, spanning 2021-05-31 to 2025-04-22.

Where does StockDrifts get Hirata 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.

Hirata Corporation 6258

Company

平田機工株式会社Hirata Corporation

Investors

Buys

Total Value

¥555M ($3.6M)

Avg Return

+53.46%

Last Filing

2025-04-22

Hirata Corporation (6258) has 10 disclosed large-shareholding filings and 8 disclosed disposals on record, filed by 7 distinct investors. Together those filings cover ¥555M ($3.6M) in reported transaction value. The earliest filing StockDrifts holds for Hirata Corporation is dated 2021-05-31; the most recent is 2025-04-22. 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 +53.46%, 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
2025-04-22	SELL	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	669.1K	¥1,324	-136.0%	¥269M ($1.7M)
2025-04-22	SELL	unknown	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	195.0K	¥1,324	-136.0%	¥103M ($662K)
2025-04-22	SELL	unknown	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	25.6K	¥1,324	-136.0%	¥850M ($5.5M)
2025-03-24	BUY	Market Buy	SMBC日興証券株式会社 SMBC Nikko Securities Inc.	other	222.1K	¥1,683.33	+85.6%	¥374M ($2.4M)
2025-03-24	BUY	Market Buy	株式会社三井住友銀行 Sumitomo Mitsui Banking Corporation	other	90.0K	¥1,683.33	+85.6%	¥152M ($977K)
2025-03-24	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	290.8K	¥1,683.33	+85.6%	¥490M ($3.2M)
2024-06-12	SELL	unknown	グッドハートパートナーズエルエルピー(Goodhart Partners LLP) Goodhart Partners LLP	other	532.0K	¥2,226.66	-40.3%	¥254M ($1.6M)
2023-09-06	BUY	Market Buy	グッドハートパートナーズエルエルピー(Goodhart Partners LLP) Goodhart Partners LLP	other	646.1K	¥2,643.33	+18.2%	¥287M ($1.9M)
2022-09-06	SELL	unknown	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	133.8K	¥1,508.33	-107.2%	¥3M ($21K)
2022-09-06	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	341.1K	¥1,508.33	-107.2%	¥92M ($597K)
2022-09-06	SELL	unknown	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	unknown	0	¥1,508.33	-107.2%	¥63M ($408K)
2022-01-20	BUY	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	135.1K	¥2,060	+51.7%	¥2M ($14K)
2022-01-20	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	402.6K	¥2,060	+51.7%	¥62M ($400K)
2022-01-20	SELL	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	42.4K	¥2,060	-51.7%	¥16M ($100K)
2021-09-06	BUY	negotiated	日興アセットマネジメント株式会社 Nikko Asset Management Co.,Ltd.	other	134.2K	¥2,280	+37.1%	¥306M ($2.0M)
2021-09-06	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	371.7K	¥2,280	+37.1%	¥847M ($5.5M)
2021-09-06	BUY	negotiated	三井住友信託銀行株式会社 Sumitomo Mitsui Trust Bank,Limited	strategic	50.0K	¥2,280	+37.1%	¥114M ($735K)
2021-05-31	BUY	unknown	グッドハートパートナーズエルエルピー(Goodhart Partners LLP) Goodhart Partners LLP	other	538.3K	¥2,156.66	+44.9%	¥1.2B ($7.5M)

Frequently asked questions

Who has been buying Hirata Corporation stock?: 7 distinct investors have filed 10 disclosed large-shareholding filings in Hirata Corporation (6258), most recently on 2025-04-22. 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 Hirata Corporation have?: Hirata Corporation has 10 buy-side and 8 sell-side disclosures on record, covering ¥555M ($3.6M) in total reported value, spanning 2021-05-31 to 2025-04-22.
Where does StockDrifts get Hirata 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 Hirata Corporation. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.