United Microelectronics Corp
UMC- Exchange
- NYSE
- Industry
- Semiconductors & Related Devices
- SEC CIK
- 0001033767
No open-market purchases or sales by United Microelectronics Corp insiders were filed in the last 90 days; 365 institutions reported holding it in 13F filings for Q2 2026, worth $4.89B in total; Maverick Capital is the only superinvestor holding it.
Superinvestors holding UMC, Q2 2026
1 superinvestor reports holding United Microelectronics Corp on Form 13F, worth $782.5K in total. Weight is United Microelectronics Corp's share of each 13F portfolio; actions compare shares with Q1 2026.
| Superinvestor | % of portfolio | Shares | Value | vs. previous quarter |
|---|---|---|---|---|
| Maverick CapitalLee Ainslie | <0.1% | 28,759 | $782.5K | New |
Moves by quarter
Superinvestors that opened, added to, trimmed or sold out of UMC each quarter, comparing shares with the quarter before. A superinvestor that didn't file for a quarter isn't listed, and isn't counted as selling.
Q2 2026
1 superinvestor holding at quarter end