Yoo Chue-San

Executive buyer

VP · TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD

Every open-market stock purchase Yoo Chue-San has reported to the SEC on Form 4 that met our signal bar, parsed straight from the filings. This page tracks where those buys landed inside insider clusters and how the prices paid compare to where the stock trades now.

Total bought
$15.7K
Open-market buys
4
Companies
1
Last buy
Oct 7, 2026

Where the buys stand today

  • TSM
    TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD

    4 purchases totalling $15.7K at an average of $76.36 per share. See all insider buying in TSM →

    Avg price paid
    $76.36
    Latest price
    —
    Market cap
    Unknown

Cluster participation

Qualifying buys grouped with other insiders buying the same stock — the pattern this site exists to catch.

All reported buys

DateTickerSharesPriceValueFiling
Oct 7, 2026
TSMcluster
50$79.39$4.0KSEC ↗
Sep 7, 2026
TSMcluster
53$76.20$4.0KSEC ↗
Aug 7, 2026
TSMcluster
51$73.31$3.7KSEC ↗
Jul 7, 2026
TSMcluster
51$76.62$3.9KSEC ↗

Follow new qualifying clusters involving Yoo Chue-San or other insiders

Explore qualifying clusters from public SEC filings. Pro adds email and Telegram notifications after detection.

About this data

Figures are parsed from Yoo Chue-San's Form 4 filings on SEC EDGAR (CIK 2113775) and cover open-market purchases (transaction code P) — grants, option exercises, and sales are excluded, which is why totals here can differ from raw filing counts. Every row links to its source document.

This page is informational and reflects public filing data. It is not investment advice.