United Microelectronics Corp (UMC)
- Sector
- Technology
- Industry
- Semiconductors
- Last price
- $21.40
- As of
Kresmion compiles this page from UMC's SEC filings, its 13F institutional holders and the market events Kresmion detects, each linked to its source.
UNITED MICROELECTRONICS CORP (UMC): 4 institutional managers tracked by Kresmion reported non-option positions in their 2026Q2 Form 13F filings, and the most recent SEC filing on record for the company is a Form 6-K filed 2026-10-13.
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Preview the UMC dossierActive signals for UMC
- highCONSENSUS_SELL
4 tracked funds reduced UMC this 2026Q2, institutional consensus
- highINSTITUTIONAL_SURGE
CITADEL ADVISORS LLC added +1312% to UMC (2026Q2)
- highINSTITUTIONAL_SURGE
CITADEL ADVISORS LLC added +495% to UMC (2026Q2)
- highINSTITUTIONAL_SURGE
CITADEL ADVISORS LLC added +2144% to UMC (2026Q2)
- highINSTITUTIONAL_SURGE
MILLENNIUM MANAGEMENT LLC added +503% to UMC (2026Q2)
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Every signal on UMC, as it fires
You are seeing 5 of 15 signals recorded on UMC since 2026-05-30.
The five above landed across 2 days. The other 10 were recorded on 3 other days. 9 of the 15 are institutional flow rows, which arrive in batches on filing days.
No fixed schedule: it goes out when the data has something in it. Unsubscribe anytime. We never sell your data.
Largest reported share positions in UMC (2026Q2)
| Manager / security | Market value | % portfolio | QoQ |
|---|---|---|---|
| TWO SIGMA INVESTMENTS, LPCUSIP 910873405 · 2026Q2 | $84M | 0.06% | , |
| MILLENNIUM MANAGEMENT LLCCUSIP 910873405 · 2026Q2 | $13.8M | 0.01% | , |
| CITADEL ADVISORS LLCCUSIP 910873405 · 2026Q2 | $5.7M | 0.00% | , |
| D. E. Shaw & Co., Inc.CUSIP 910873405 · 2026Q2 | $5.3M | 0.00% | , |
Quarterly SEC Form 13F disclosures from the managers Kresmion tracks, not a complete ownership ranking. Non-option holdings only; reported put and call positions are excluded. Different securities are labeled by CUSIP. Values are reporting-period snapshots, not current position values. Filings can arrive up to 45 days after quarter-end.
Recent SEC filings, UMC
- 6-KSEC EDGAR ↗
- 6-KSEC EDGAR ↗
- 6-KSEC EDGAR ↗
- 6-KSEC EDGAR ↗
- 6-KSEC EDGAR ↗
- 6-KSEC EDGAR ↗
- 6-KSEC EDGAR ↗
- 6-KSEC EDGAR ↗
- 6-KSEC EDGAR ↗
- 6-KSEC EDGAR ↗
UMC against its peers
UMC's operating margin of 22.2% ranks in the 92nd percentile of 5 Semiconductors sub-industry peers, fiscal periods ending between 2024-12-31 and 2025-03-31.
| Metric | UMC | Peer median | Percentile | n |
|---|---|---|---|---|
| Revenue FY | 7.1B USD | n/a | n/a | 4 |
| Revenue YoY | -2.5% | n/a | n/a | 4 |
| Gross margin | 32.6% | 24.5% | 58 | 5 |
| Operating margin | 22.2% | 6.8% | 92 | 5 |
| Net margin | 21.0% | 5.7% | 92 | 5 |
| Return on equity | 13.3% | 7.8% | 92 | 5 |
Peers (5): STM, MCHP, ASX, GFS, TSEM. Left out: NXPI (period gap), ALAB (period gap), MPWR (period gap), KXIAY (no annual filing), IFNNY (no annual filing), CRDO (period gap), CBRS (no annual filing), HHUSF (no annual filing), ON (period gap), MTSI (period gap), FSLR (period gap), SITM (period gap), QCOM (period gap), SWKS (period gap), MKSI (period gap), LSCC (period gap), SMTC (period gap), ADI (period gap), MRVL (period gap), ONTO (period gap). Fiscal periods ending between 2024-12-31 and 2025-03-31. Every figure is one full fiscal year read from one annual filing (UMC: 20-F), reported in USD. Nothing is trailing twelve months and nothing is converted between currencies. Source: SEC EDGAR XBRL company facts (public domain); prices from Kresmion's daily equity market-data snapshot. Open the full comparison.
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