The CFO's large share sale warrants close monitoring for further insider selling and potential negative sentiment. The convertible bond's conversion price at a premium suggests management sees current valuation as reasonable, but the lack of bond size disclosure limits assessment of dilution risk.
Price Chart
Executive Summary
UMC's 6-K reports three items: a minor capital reduction (0.055% of shares) from RSA cancellation, the conversion price setting for a new domestic convertible bond (NT$130.7/share, 104.98% premium), and most notably, CFO Chitung Liu sold 1.9 million shares in July, reducing his stake by ~47%. The insider selling by the CFO is a bearish signal, while the convertible bond introduces potential future dilution.
Key Facts
- CFO Chitung Liu sold 1,900,000 UMC shares in July 2026, reducing holdings from 4,012,917 to 2,112,917 (47% reduction).
- Capital reduction of ~6.89M shares (0.055%) completed due to RSA cancellation; book value per share rose from NT$35.38 to NT$35.40.
- 2nd domestic unsecured convertible bond became effective; conversion price set at NT$130.7 per share (base price NT$124.5, premium 104.98%).
Financial Impact
CFO sold ~$2.4M worth of shares at ~NT$124.5 (approx. $3.85) per share; capital reduction immaterial at ~0.055% of shares; convertible bond size undisclosed.
Risk Factors
- Further insider sales by other executives or directors.
- Potential dilution from convertible bond conversion if bond size is material.
- Semiconductor industry cyclical downturn affecting UMC's fundamentals.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 5 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 6-K Filing (Primary) | 0001193125-26-350180 |
| Document: 6k_on_08142026.htm | 0001193125-26-350180 |
| Document: 0001193125-26-350180-index-headers.html | 0001193125-26-350180 |
| Document: 0001193125-26-350180-index.html | 0001193125-26-350180 |
| Document: 0001193125-26-350180.txt | 0001193125-26-350180 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 4, 2026 28d ago | 6-K | $20.77 $21.90 | ▲ +5.44% | ▲ +6.65% | $26.27 (+26.48%) |
Sep 2, 2026 4w ago | 6-K | $19.97 $22.12 | ▲ +10.77% | ▲ +11.72% | $26.27 (+31.55%) |
Aug 26, 2026 5w ago | 6-K | $19.03 $19.97 | ▼ −4.94% | ▼ −5.06% | $26.27 (−38.05%) |
Aug 14, 2026 7w ago | 6-K | $19.15 $18.34 | ▲ +4.23% | ▲ +2.86% | $26.27 (−37.18%) |
Aug 5, 2026 8w ago | 6-K | $19.29 $19.31 | ▲ +0.10% | ▼ −0.25% | $26.27 (+36.18%) |
Jul 21, 2026 10w ago | 6-K | $21.19 $19.08 | ▼ −9.96% | ▼ −8.73% | $26.27 (+23.97%) |
Jul 15, 2026 11w ago | 6-K | $24.92 $21.29 | ▼ −14.57% | ▼ −13.59% | $26.27 (+5.42%) |
Jul 14, 2026 11w ago | 6-K | $23.84 $20.30 | ▼ −14.85% | ▼ −13.55% | $26.27 (+10.19%) |
Jul 6, 2026 12w ago | 6-K | $25.83 $24.34 | ▼ −5.77% | ▼ −6.26% | $26.27 (+1.70%) |
Jun 29, 2026 13w ago | 6-K | $26.84 $25.83 | ▼ −3.76% | ▼ −5.15% | $26.27 (−2.12%) |
US Market Status
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