Home › Stocks › 4971 Tokyo-listed stock · 4971
Mec Company (4971): large-holder filings
In the last 12 months, large holders reported 3 changes to stakes of 5% or more.
Stakes raised / cut 1 / 212 months
Large holders filing 312 months
Last close ¥6,01027 Oct 2026
One-year change +44.8% 4 disclosed buys and sales on record since 7 October 2025. A large holder files with EDINET when a stake of 5% or more moves by a point or more; a change has a value once it can be priced.
Latest disclosures
Disclosed Filed by Type Amount Traded
22 Jan 2026 SMBC Nikko Securities Inc.5% holder (Japan)
Sale ¥2.1B ($13M)
15 Jan 2026
5 Dec 2025 Sumitomo Mitsui DS Asset Management Company, Limited5% holder (Japan)
Buy Not valued
28 Nov 2025
3 Dec 2025 Wellington Management Hong Kong Ltd5% holder (Japan)
Sale ¥2B ($12.7M)
28 Nov 2025
7 Oct 2025 Wellington Management Hong Kong Ltd5% holder (Japan)
Buy Not valued
30 Sep 2025
Columns are written from public disclosures: House and Senate periodic transaction reports, SEC Form 4, Japan’s EDINET large-holding reports and Taiwan’s insider registers and market data (TWSE, TPEx, MOPS and the central bank, with history from FinMind). Stock pages add SEC 13F fund holdings and company financials, analysts’ figures from Financial Modeling Prep and Finnhub, and lobbying and federal contract records from the Senate and USAspending.gov. Amounts are disclosed as ranges, so the figures are estimates. Nothing here is investment advice.
Home · Features · Columns · Members of Congress · Stocks · Sitemap · RSS feed of the columns · Privacy and security
Follow us on X Bluesky LinkedIn