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Tsudakoma Corp. 6217

Company
津田駒工業株式会社Tsudakoma Corp.
Investors
3
Buys
1
Total Value
¥137M ($885K)
Avg Return
+179.95%
Last Filing
2026-01-09

Tsudakoma Corp. (6217) has 1 disclosed large-shareholding filings and 3 disclosed disposals on record, filed by 3 distinct investors. Together those filings cover ¥137M ($885K) in reported transaction value. The earliest filing StockDrifts holds for Tsudakoma Corp. is dated 2022-05-10; the most recent is 2026-01-09. 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 +179.95%, measured from each filing date to the latest available close.

Price & insider activity (12 months)

Recent filings

DateTypeSourceInsiderPurposeSharesPrice at filingReturnValue
2026-01-09SELLMarket Buy
株式会社ポートフォリア
Portfolia Inc.
passive172.6K¥566-89.9%¥262M ($1.7M)
2025-04-22SELLunknown
ユービーエス・エイ・ジー(銀行)
UBS AG
other2.1K¥380-182.9%¥56M ($362K)
2025-01-10BUYunknown
ユービーエス・エイ・ジー(銀行)
UBS AG
other357.4K¥384+179.9%¥137M ($885K)
2022-05-10SELLMarket Buy
明治安田生命保険相互会社
Meiji Yasuda Life Insurance Company
passive330.4K¥571-88.3%¥41M ($263K)

Frequently asked questions

Who has been buying Tsudakoma Corp. stock?
3 distinct investors have filed 1 disclosed large-shareholding filings in Tsudakoma Corp. (6217), most recently on 2026-01-09. 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 Tsudakoma Corp. have?
Tsudakoma Corp. has 1 buy-side and 3 sell-side disclosures on record, covering ¥137M ($885K) in total reported value, spanning 2022-05-10 to 2026-01-09.
Where does StockDrifts get Tsudakoma Corp. 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 Tsudakoma Corp.. For how StockDrifts scores these disclosures, see the Japan insider signal tier research, or browse every Japanese stock we track.