Public filings / UMC on Yahoo Finance (opens in a new tab)
UMC: insider buying and selling, DARTS theme
UNITED MICROELECTRONICS CORP
A summary of public filings about UNITED MICROELECTRONICS CORP. For the latest insider history, price chart, analyst changes and activist filings, open the live lookup.
Gulfstream DARTS · classified from its own SEC filings
UMC in the DARTS universe: AI
UNITED MICROELECTRONICS CORP is classified in the AI theme, sub-sector Chips & Semiconductors (high confidence).
Insider tape, nightly feed as of Nov 9, 2026: stamp Distribution · 0 insiders buying, 2 selling · $0 bought, $230,429,600 sold · last sale 2026-09-22. Open-market purchases and sales from SEC Form 4.
Placement confidence grades the classification, not the stock. Not a recommendation.
Important information
Facts from public SEC filings, shown for information only. Not a recommendation. Not individualized investment advice. Gulfstream Capital and its clients may hold positions in securities shown.