UMC UNITED MICROELECTRONICS CORP
FollowADR (ADR), issuer CIK 1033767
Filings received so far for Q3 2026: 10 13F filers report a position in UMC shares at 2026-09-30. The quarter is not complete: its 13F deadline is 2026-11-14, and the counts grow as filings arrive.
13D and 13G filers
No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.
Insider trades
No Form 4 transaction on this security in the data.
13F holders, Q3 2026
Filers in the available 13F reports with a share position at 2026-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.
| Holder | Shares | Value | % of portfolio | Change | Source |
|---|---|---|---|---|---|
| Ridgewood Investments LLC | 31,285 | $766K | 0.28% | -17,907 | 13F-HRTimeline |
| Farther Finance Advisors, LLC | 23,760 | $582K | <0.01% | +3,536 | 13F-HRTimeline |
| Artemis Investment Management LLP | 17,525 | $429K | <0.01% | -26,960 | 13F-HRTimeline |
| GAMMA Investing LLC | 14,250 | $349K | 0.01% | +1,588 | 13F-HRTimeline |
| Valeo Financial Advisors, LLC | 12,875 | $315K | 0.01% | +782 | 13F-HRTimeline |
| EASTERN BANK | 8,483 | $208K | <0.01% | +763 | 13F-HRTimeline |
| CoreCap Advisors, LLC | 1,369 | $33.5K | <0.01% | 0 | 13F-HRTimeline |
| Versant Capital Management, Inc | 305 | $7.47K | <0.01% | -16 | 13F-HRTimeline |
| ELEVATION WEALTH PARTNERS, LLC | 223 | $5.46K | <0.01% | 0 | 13F-HRTimeline |
| Trust Co | 158 | $3.87K | <0.01% | 0 | 13F-HRTimeline |