Compare
Arm Holdings vs United Microelectronics
Arm Holdings (ARM) and United Microelectronics (UMC) side by side, from official filings: what insiders, members of Congress and funds reported. These are counts of what was filed, not a view on either stock.
| Arm Holdings ARMNASDAQ · Semiconductors & Related Devices | United Microelectronics UMCNYSE · Semiconductors & Related Devices | |
|---|---|---|
| Insider records, last 12 months | 0 | 0 |
| Congress trades, last 12 months | 0 | 0 |
| Fund positions reported, last 12 months | 72 | 4 |
| Federal contract awards, last 12 months | 0 | 0 |
| Open-market purchases by insiders since 2006 | 0 | 0 |
| Open-market sales by insiders since 2006 | 0 | 0 |
| Last open-market purchase by an insider | None on record | None on record |
| Next results | Nov 4, 2026 | Not announced |
Counts of records OQRO holds, by their date. Insider history since 2006 comes from the SEC's insider transactions data sets and every filing since. Planned and automatic sales are included in the sales.
Common questions
Which has had more insider buying, Arm Holdings or United Microelectronics?
Since 2006, insiders of both companies reported 0 open-market purchases, in SEC Forms 4 and 5.
Do members of Congress trade ARM or UMC?
In the last 12 months, members of Congress disclosed 0 trades in Arm Holdings (ARM) and 0 in United Microelectronics (UMC), each reported as a value range on a periodic transaction report.
When did insiders last buy ARM and UMC?
Arm Holdings: no open-market purchase on record. United Microelectronics: no open-market purchase on record. Dates are those of the SEC filings.
See the record behind any of these
Each company page opens free with one real filing and the counts of the last 12 months. OQRO Pro adds the full history of every insider and company since 2006, the screener, alerts, Congress trades and fund moves.
Arm Holdings pageUnited Microelectronics pageRare insider trades this weekAll comparisons
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