6-K ·Filed Apr 15, 2026

UMC

UNITED MICROELECTRONICS CORP
NEUTRAL
Impact 3/10
Horizondays Processed5mo ago SEC0001193125-26-155859
Notable filing: 6-K
Actionable Insight • Neutral

Traders should monitor the April 29 investor conference for Q1 2026 financial results. The modest insider selling is routine and not a cause for concern, but the concentration of sales among senior executives may warrant tracking in future filings.

DirectionNeutral
Confidencehigh
Horizondays
Final — all horizons settled through T+60d
UMC ▲ +144.62% at T+60d
NEUTRAL call ✓ call won +144.62% · α vs SPY +136.49% · entry $9.95 → $24.34
Entry anchored
Apr 14, 03:59 PM ET
via exchange tick
T+1d
+6.73%
call +6.73% · α +6.48%
$10.62
settled 6mo ago
T+5d
+27.74%
call +27.74% · α +26.10%
$12.71
settled 5mo ago
T+20d
+61.41%
call +61.41% · α +55.36%
$16.06
settled 5mo ago
T+60d
+144.62%
call +144.62% · α +136.49%
$24.34
settled 3mo ago

Price Chart

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Executive Summary

UMC announced its Q1 2026 Investor Conference scheduled for April 29, 2026, and disclosed routine share transactions by executives during March 2026. No material financial results or strategic updates were released.

Key Facts

  • UMC will hold its Q1 2026 Investor Conference on April 29, 2026, to discuss financial and operating results.
  • Executives sold a total of 729,000 shares in March 2026, with CFO Chitung Liu selling 600,000 shares.
  • No share pledges or changes in pledge status were reported for directors, officers, or 10% shareholders.
  • The filing is a standard 6-K submission for foreign issuer disclosures, containing no unexpected developments.

Financial Impact

No immediate financial impact. The filing announces an upcoming event and reports past insider transactions without material changes to ownership or leverage.

insider ownershipinvestor communications

Risk Factors

  • Potential for downward pressure on stock if upcoming earnings disappoint, given recent insider selling.
  • Limited near-term catalysts before the April 29 conference.

Market Snapshot

Exchange
NYSE
Sector
Semiconductors & Related Devices

Investment Themes

Semiconductors

Documents Analyzed

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

DocumentAccession Number
6-K Filing (Primary)0001193125-26-155859
Document: 6k_on_04152026.htm0001193125-26-155859
Document: 0001193125-26-155859-index-headers.html0001193125-26-155859
Document: 0001193125-26-155859-index.html0001193125-26-155859
Document: 0001193125-26-155859.txt0001193125-26-155859
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 27m)

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