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Sanki Engineering Co., Ltd. 1961

Company
三機工業株式会社Sanki Engineering Co., Ltd.
Investors
2
Buys
2
Total Value
¥20.5B ($132.2M)
Avg Return
+22.36%
Last Filing
2025-12-22

Sanki Engineering Co., Ltd. (1961) has 2 disclosed large-shareholding filings and 0 disclosed disposals on record, filed by 2 distinct investors. Together those filings cover ¥20.5B ($132.2M) in reported transaction value. The earliest filing StockDrifts holds for Sanki Engineering Co., Ltd. is dated 2025-12-22; the most recent is 2025-12-22. Across these filings the average return since disclosure is +22.36%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-09-04BUYunknown
アモーヴァ・アセットマネジメント株式会社
other5.4M¥2,394+7.3%¥13.0B ($83.5M)
2026-09-04BUYunknown
三井住友トラスト・アセットマネジメント株式会社
other2.7M¥2,394+7.3%¥6.6B ($42.4M)
2026-06-05BUYMarket Buy
キャピタル・リサーチ・アンド・マネージメント・カンパニー(Capital Research and Management Company)
Capital Research and Management Company
passive8.5M¥2,318+10.9%¥19.8B ($127.6M)
2025-12-22BUYMarket Buy
日本生命保険相互会社
passive2.2M¥5,770-55.5%¥372M ($2.4M)
2025-12-22BUYMarket Buy
大樹生命保険株式会社
passive2.9M¥5,770-55.5%¥93M ($599K)

Frequently asked questions

Who has been buying Sanki Engineering Co., Ltd. stock?
2 distinct investors have filed 2 disclosed large-shareholding filings in Sanki Engineering Co., Ltd. (1961), most recently on 2025-12-22. 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 Sanki Engineering Co., Ltd. have?
Sanki Engineering Co., Ltd. has 2 buy-side and 0 sell-side disclosures on record, covering ¥20.5B ($132.2M) in total reported value, spanning 2025-12-22 to 2025-12-22.
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.