6-K ·Filed May 27, 2026

UMC

UNITED MICROELECTRONICS CORP
NEUTRAL
Impact 3/10
Horizonmonths Processed4mo ago SEC0001193125-26-240337
Notable filing: 6-K
Actionable Insight • Neutral

Routine 6-K with no immediate earnings or operational surprises. Monitor next quarterly report for capacity utilization and margin trends; the facility acquisitions signal ongoing fab investment, consistent with prior capex plans.

DirectionNeutral
Confidencehigh
Horizonmonths
Latest settled — T+20d
UMC ▲ +24.80% at T+20d
NEUTRAL call ✓ call won +24.80% · α vs SPY +26.70% · entry $22.22 → $27.73
Next anchor: T+60d due 6w ago
Latest observation: T+57 -69.36% FF3 residual α
Entry anchored
May 27, 05:46 AM ET
via exchange tick
T+1d
+2.07%
call +2.07% · α +1.52%
$22.68
settled 4mo ago
T+5d
+1.08%
call +1.08% · α -0.13%
$22.46
settled 4mo ago
T+20d
+24.80%
call +24.80% · α +26.70%
$27.73
settled 3mo ago
T+60d
—
call — · α —
—
due 6w ago

Price Chart

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Executive Summary

UMC filed a 6-K reporting two facility acquisitions totaling NT$4.68 billion (~US$145M) from unrelated parties for production use, and the results of its 2026 Annual General Meeting. The AGM approved the 2025 earnings distribution, the 2025 business report/financials, an amendment to asset acquisition procedures, and the issuance of Restricted Stock Awards. These are routine operational and governance items with no material financial impact disclosed.

Key Facts

  • Two facility acquisitions: NT$3,476,344,098 from L&K Engineering (Singapore Branch) and NT$1,204,169,928 from LIMK ENGINEERING PTE. LTD., both non-related-party transactions for production use.
  • AGM approved 2025 earnings distribution with 93.82% votes in favor.
  • AGM approved 2025 business report and financial statements with 93.71% votes in favor.
  • AGM approved amendment to Acquisition or Disposal of Assets Procedure (93.82% for).
  • AGM approved issuance of Restricted Stock Awards (93.11% for).
  • No elections for board of directors or supervisors occurred at the AGM.
  • No amendments to corporate charter were proposed.

Financial Impact

Total facility acquisitions of NT$4,680,514,026 (~US$145M), but no financing details or impact on earnings are disclosed.

capex

Risk Factors

  • Restricted Stock Awards may cause modest future dilution, but magnitude is not disclosed.
  • No quantitative guidance or financial outlook provided in this filing.

Market Snapshot

Exchange
NYSE
Sector
Semiconductors & Related Devices
Analyst Consensus
31% bullish (32 analysts)

Investment Themes

Semiconductors

Documents Analyzed

This report is based on 5 SEC documents filed with EDGAR.

DocumentAccession Number
6-K Filing (Primary)0001193125-26-240337
Document: 6k_on_05272026.htm0001193125-26-240337
Document: 0001193125-26-240337-index-headers.html0001193125-26-240337
Document: 0001193125-26-240337-index.html0001193125-26-240337
Document: 0001193125-26-240337.txt0001193125-26-240337
25 reports for UMC
Performance horizon
60% Hit rate 3 of 5 directional calls best @ T+1▲ +6.91%Jun 23, 2026
Filters
Rows
Reports for UMC — sortable, filterable
TypeNow
Sep 4, 2026
28d ago
6-K
BULLISH ★ 5/10
$20.77 $21.90▲ +5.44%▲ +6.65%$26.27 (+26.48%)
Sep 2, 2026
4w ago
6-K
NEUTRAL ★ 2/10
$19.97 $22.12▲ +10.77%▲ +11.72%$26.27 (+31.55%)
Aug 26, 2026
5w ago
6-K
BEARISH ★ 5/10
$19.03 $19.97▼ −4.94%▼ −5.06%$26.27 (−38.05%)
Aug 14, 2026
7w ago
6-K
BEARISH ★ 5/10
$19.15 $18.34▲ +4.23%▲ +2.86%$26.27 (−37.18%)
Aug 5, 2026
8w ago
6-K
NEUTRAL ★ 2/10
$19.29 $19.31▲ +0.10%▼ −0.25%$26.27 (+36.18%)
Jul 21, 2026
10w ago
6-K
NEUTRAL ★ 2/10
$21.19 $19.08▼ −9.96%▼ −8.73%$26.27 (+23.97%)
Jul 15, 2026
11w ago
6-K
NEUTRAL ★ 2/10
$24.92 $21.29▼ −14.57%▼ −13.59%$26.27 (+5.42%)
Jul 14, 2026
11w ago
6-K
NEUTRAL ★ 3/10
$23.84 $20.30▼ −14.85%▼ −13.55%$26.27 (+10.19%)
Jul 6, 2026
12w ago
6-K
BULLISH ★ 5/10
$25.83 $24.34▼ −5.77%▼ −6.26%$26.27 (+1.70%)
Jun 29, 2026
13w ago
6-K
NEUTRAL ★ 3/10
$26.84 $25.83▼ −3.76%▼ −5.15%$26.27 (−2.12%)
Showing 10 of 25

US Market Status

Market Closed — Opens Mon (39h 26m)

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