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Nippon Seiki Co., Ltd. 7287

Company
日本精機株式会社Nippon Seiki Co., Ltd.
Investors
3
Buys
2
Total Value
¥5.8B ($37.3M)
Avg Return
+110.15%
Last Filing
2025-06-20

Nippon Seiki Co., Ltd. (7287) has 2 disclosed large-shareholding filings and 7 disclosed disposals on record, filed by 3 distinct investors. Together those filings cover ¥5.8B ($37.3M) in reported transaction value. The earliest filing StockDrifts holds for Nippon Seiki Co., Ltd. is dated 2021-10-06; the most recent is 2025-06-20. 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 +110.15%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-06-05SELLMarket Buy
ティー・ロウ・プライス・ジャパン株式会社
T. Rowe Price Japan, Inc.
passive2.3M¥2,689+7.2%¥2.3B ($15.0M)
2025-06-20BUYunknown
本田技研工業株式会社
HONDA MOTOR CO., LTD.
other2.3M¥1,353+94.5%¥3.1B ($19.9M)
2025-06-20BUYunknown
本田技研工業株式会社
HONDA MOTOR CO., LTD.
other3.8M¥1,353+94.5%¥5.1B ($32.8M)
2023-06-07SELLunknown
エフエムアール エルエルシー(FMR LLC)
FMR LLC
other2.4M¥895-194.0%¥807M ($5.2M)
2023-05-10SELLMarket Buy
ティー・ロウ・プライス・ジャパン株式会社
T. Rowe Price Japan, Inc.
passive3.3M¥872-201.7%¥775M ($5.0M)
2023-03-23SELLMarket Buy
ティー・ロウ・プライス・ジャパン株式会社
T. Rowe Price Japan, Inc.
passive4.2M¥832-216.2%¥588M ($3.8M)
2023-03-07SELLMarket Buy
ティー・ロウ・プライス・ジャパン株式会社
T. Rowe Price Japan, Inc.
passive4.9M¥906-190.4%¥657M ($4.2M)
2023-02-14SELLMarket Buy
ティー・ロウ・プライス・ジャパン株式会社
T. Rowe Price Japan, Inc.
passive5.7M¥859-206.3%¥560M ($3.6M)
2022-12-27SELLMarket Buy
ティー・ロウ・プライス・ジャパン株式会社
T. Rowe Price Japan, Inc.
passive6.3M¥775-239.5%¥472M ($3.0M)
2022-09-07SELLunknown
エフエムアール エルエルシー(FMR LLC)
FMR LLC
other3.3M¥826-218.5%¥574M ($3.7M)
2021-10-06BUYMarket Buy
ティー・ロウ・プライス・ジャパン株式会社
T. Rowe Price Japan, Inc.
passive6.9M¥1,165+125.8%¥710M ($4.6M)
2021-10-06BUYMarket Buy
ティー・ロウ・プライス・ジャパン株式会社
T. Rowe Price Japan, Inc.
passive6.9M¥1,165+125.8%¥710M ($4.6M)

Frequently asked questions

Who has been buying Nippon Seiki Co., Ltd. stock?
3 distinct investors have filed 2 disclosed large-shareholding filings in Nippon Seiki Co., Ltd. (7287), most recently on 2025-06-20. 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 Nippon Seiki Co., Ltd. have?
Nippon Seiki Co., Ltd. has 2 buy-side and 7 sell-side disclosures on record, covering ¥5.8B ($37.3M) in total reported value, spanning 2021-10-06 to 2025-06-20.
Where does StockDrifts get Nippon Seiki Co., Ltd. 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 Nippon Seiki Co., Ltd.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.