# UNITED MICROELECTRONICS CORP (UMC)

> Institutional ownership reported to the SEC as of Q3 2026, from Form 13F filings. Source: https://holderbook.com/stocks/UMC/

- Reporting holders: 10
- Reported value: $2.7M
- Held through calls: 0.0%
- Held through puts: 0.0%

A 13F reports long US equity positions only. Shorts, bonds, foreign listings and cash are not visible here, and positions are disclosed up to 45 days after the quarter ends.

## Largest holders

| Manager | Value | Shares | Share of their book | Quarters held |
|---|---|---|---|---|
| [Ridgewood Investments LLC](https://holderbook.com/funds/1703556-ridgewood-investments-llc/) | $766.2K | 31,285 | 0.3% | 4 |
| [Farther Finance Advisors, LLC](https://holderbook.com/funds/1992825-farther-finance-advisors-llc/) | $581.9K | 23,760 | 0.0% | 16 |
| [Artemis Investment Management LLP](https://holderbook.com/funds/1535385-artemis-investment-management-llp/) | $429.2K | 17,525 | 0.0% | 3 |
| [GAMMA Investing LLC](https://holderbook.com/funds/2010235-gamma-investing-llc/) | $349.0K | 14,250 | 0.0% | 12 |
| [Valeo Financial Advisors, LLC](https://holderbook.com/funds/1722641-valeo-financial-advisors-llc/) | $315.3K | 12,875 | 0.0% | 2 |
| [EASTERN BANK](https://holderbook.com/funds/1126395-eastern-bank/) | $207.7K | 8,483 | 0.0% | 2 |
| [CoreCap Advisors, LLC](https://holderbook.com/funds/1902501-corecap-advisors-llc/) | $33.5K | 1,369 | 0.0% | 9 |
| [Versant Capital Management, Inc](https://holderbook.com/funds/1735057-versant-capital-management-inc/) | $7.5K | 305 | 0.0% | 3 |
| [ELEVATION WEALTH PARTNERS, LLC](https://holderbook.com/funds/1976256-elevation-wealth-partners-llc/) | $5.5K | 223 | 0.0% | 2 |
| [Trust Co](https://holderbook.com/funds/1632554-trust-co/) | $3.9K | 158 | 0.0% | 4 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q3 2026 | 10 | $2.7M |
| Q2 2026 | 372 | $5.6B |
| Q1 2026 | 320 | $1.6B |
| Q4 2025 | 274 | $1.2B |
| Q3 2025 | 242 | $1.0B |
| Q2 2025 | 240 | $1.2B |
| Q1 2025 | 236 | $1.1B |
| Q4 2024 | 254 | $1.0B |
| Q3 2024 | 268 | $1.4B |
| Q2 2024 | 239 | $1.2B |
| Q1 2024 | 246 | $1.2B |
| Q4 2023 | 255 | $1.2B |