UMC insider trading
NYSE TechnologyUNITED MICROELECTRONICS CORP: insider trade history from SEC Form 4 filings.
About UNITED MICROELECTRONICS CORP
United Microelectronics Corporation operates as a semiconductor wafer foundry in Taiwan, China, Hong Kong, Japan, Korea, the United States, Europe, and internationally. It manufactures and sells integrated circuits. The company offers circuit design; mask tooling; wafer fabrication; and assembly and testing services for communication devices, consumer electronics, computer, and other applications. It also provides venture capital and marketing support; consulting and planning; energy technical; solar engineering integrated design; research and development services; and insurance services. United Microelectronics Corporation was incorporated in 1980 and is headquartered in Hsinchu City, Taiwan.
Company website: www.umc.com
UMC insider activity at a glance
FilingIQ tracks 7 insider transactions for UMC in filings since Jun 30, 2026. The most recent transaction is dated Sep 22, 2026.
Across the full history, 0 open-market purchases
and 5 open-market sales
were filed under transaction codes P and S respectively. Compensatory share awards
(code A) and option exercises (code M) are tracked separately and not counted here.
How FilingIQ classifies each line, and the seven facts it shows on every open-market purchase and sale, are documented on the methodology page.
Latest UMC Form 4 filings
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Frequently asked
- How many insider trades does FilingIQ track for UMC?
- FilingIQ tracks 7 Form 4 insider transactions for UMC (UNITED MICROELECTRONICS CORP), covering filings from Jun 30, 2026 onwards. 5 of those are dated within the last 90 days.
- Are UMC insiders net buyers or net sellers?
- Across the full Form 4 history for UMC, 0 transactions (0%) were open-market purchases and 5 (71%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
- Where does UMC insider data come from?
- Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ links every filing to the insider's SEC CIK, marks plan trades, tax withholding, option exercises, gifts, derivatives and amendments, and shows each open-market purchase and sale with the same fixed facts. It does not rate the stock.
- What sector is UMC in?
- UNITED MICROELECTRONICS CORP (UMC) is classified in the Technology sector, specifically Semiconductors, with a current market capitalisation of $68.28B.
Methodology & sources
Every UMC insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). How lines are classified and which facts FilingIQ adds is documented on the methodology page; the people behind it are on the team page. Not investment advice; see disclaimer.